Relevant bibliographies by topics / Cone Penetration Test (CPT)

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Academic literature on the topic 'Cone Penetration Test (CPT)'

Author: Grafiati
Published: 4 June 2021
Last updated: 11 June 2025

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Journal articles on the topic "Cone Penetration Test (CPT)"

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Robertson, P. K. "Soil classification using the cone penetration test." Canadian Geotechnical Journal 27, no. 1 (1990): 151–58. http://dx.doi.org/10.1139/t90-014.

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Several charts exist for evaluating soil type from electric cone penetration test (CPT) data. A new system is proposed based on normalized CPT data. The new charts are based on extensive data available from published and unpublished experience worldwide. The new charts are evaluated using data from a 300 m deep borehole with wire-line CPT. Good agreement was obtained between samples and the CPT data using the new normalized charts. Recommendations are provided concerning the location at which to measure pore pressures during cone penetration. Key words: soil classification, cone penetration test, in situ, case history.
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Abu-Farsakh, Murad Y., Zhongjie Zhang, Mehmet Tumay, and Mark Morvant. "Computerized Cone Penetration Test for Soil Classification." Transportation Research Record: Journal of the Transportation Research Board 2053, no. 1 (2008): 47–64. http://dx.doi.org/10.3141/2053-07.

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Computerized MS-Windows Visual Basic software of a cone penetration test (CPT) for soil classification was developed as part of an extensive effort to facilitate the implementation of CPT technology in many geotechnical engineering applications. Five CPT soil engineering classification systems were implemented as a handy, user-friendly, software tool for geotechnical engineers. In the probabilistic region estimation and fuzzy classification methods, a conformal transformation is first applied to determine the profile of soil classification index (U) with depth from cone tip resistance (qc) and friction ratio (Rf). A statistical correlation was established in the probabilistic region estimation method between the U index and the compositional soil type given by the Unified Soil Classification System. Conversely, the CPT fuzzy classification emphasizes the certainty of soil behavior. The Schmertmann and Douglas and Olsen methods provide soil classification charts based on cone tip resistance and friction ratio. However, Robertson et al. proposed a three-dimensional classification system that is presented in two charts: one chart uses corrected tip resistance (qt) and friction ratio (Rf); the other chart uses qt and pore pressure parameter (Bq) as input data. Five sites in Louisiana were selected for this study. For each site, CPT tests and the corresponding soil boring results were correlated. The soil classification results obtained using the five different CPT soil classification methods were compared.
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De Beer, E. E., E. Goelen, W. J. Heynen, and K. Joustra. "Cone penetration test (CPT): international reference test procedure." International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts 27, no. 2 (1990): A93. http://dx.doi.org/10.1016/0148-9062(90)95093-g.

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Treen, Curtis R., Peter K. Robertson, and David J. Woeller. "Cone penetration testing in stiff glacial soils using a downhole cone penetrometer." Canadian Geotechnical Journal 29, no. 3 (1992): 448–55. http://dx.doi.org/10.1139/t92-049.

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Cone penetration testing (CPT) in Canada is usually performed using locally available drilling rigs. The limited pushing capacity of most drilling rigs coupled with the risk of damage to expensive cone penetrometers has tended to restrict the CPT to generally loose or soft soils. Therefore, in regions dominated by stiff glacial soils the more rugged standard penetration test (SPT) is still the most commonly used in situ test during geotechnical investigations. However, there are many limitations with the SPT with respect to interpretation and repeatability, especially the uncertainty with the energy delivered from various SPT hammer anvil systems. A downhole cone penetration test (DCPT) has been developed by modifying the equipment and procedure of the standard electric CPT. The DCPT consists of a simple, inexpensive electric cone penetrometer attached to a 1.5 m (5 ft) length of AW drill rod. The test is performed by pushing the cone 1.5 m into the base of an open borehole to produce a continuous profile of penetration resistance Qc, over the 1.5-m interval or whatever interval penetration is possible. The test incorporates the simplicity, ruggedness, and depth capability of the SPT but is able to define a near-continuous, accurate, and repeatable cone penetration resistance profile. The equipment and procedure of the DCPT is described in detail, and results from a near-continuous DCPT and an adjacent continuous CPT are presented and compared with the results obtained from an adjacent borehole with SPT. Excellent agreement was found between the results of the DCPT and the CPT. Key words : in situ, cone penetration testing, stiff soils.
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Li, Wenqiang. "Application of CPT test in the evaluation of the test effect of lime soil compacting pile." Vibroengineering PROCEDIA 49 (May 18, 2023): 186–91. http://dx.doi.org/10.21595/vp.2023.23234.

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In the course of highway construction and use in loess area, subgrade settlement disease is common and has great destructiveness. The cone penetration test (CPT), especially the pore pressure cone penetration test, can provide three continuous readings along the exploration depth cone tip resistance, lateral friction resistance and excess pore water pressure. In this paper, CPT tests are carried out in the losses areas in Shanxi, China. Some data and curves are obtained by using CPT, which are quite different from those obtained by conventional drilling, reflecting the soil layer characteristics of the subgrade section, in order to provide a reference for similar projects. The results showed that CPT has a strong advantage in the analysis of the effect of compacted pile in the treatment of pile length and the improvement and reduction of indicators of different layers along the depth direction. However, the correlation between the static penetration and the compaction coefficient commonly used in the current norms still needs to be further studied to enhance the correlation analysis with detection parameters.
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Robertson, P. K., and CE (Fear) Wride. "Evaluating cyclic liquefaction potential using the cone penetration test." Canadian Geotechnical Journal 35, no. 3 (1998): 442–59. http://dx.doi.org/10.1139/t98-017.

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Soil liquefaction is a major concern for structures constructed with or on sandy soils. This paper describes the phenomena of soil liquefaction, reviews suitable definitions, and provides an update on methods to evaluate cyclic liquefaction using the cone penetration test (CPT). A method is described to estimate grain characteristics directly from the CPT and to incorporate this into one of the methods for evaluating resistance to cyclic loading. A worked example is also provided, illustrating how the continuous nature of the CPT can provide a good evaluation of cyclic liquefaction potential, on an overall profile basis. This paper forms part of the final submission by the authors to the proceedings of the 1996 National Center for Earthquake Engineering Research workshop on evaluation of liquefaction resistance of soils.Key words: cyclic liquefaction, sandy soils, cone penetration test
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Ladanyi, Branko. "Borehole penetration and expansion devices for ice testing." Canadian Journal of Civil Engineering 23, no. 1 (1996): 157–64. http://dx.doi.org/10.1139/l96-016.

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The paper presents two methods for in situ testing of strength and creep properties of ice, together with their theoretical interpretation and typical results. The two methods which are relatively new in this area of application, are the stress-controlled cone penetration test (CPT), and the sharp cone test (SCT). The CPT has been shown in the last few years to be an excellent tool for both ice quality profiling and ice creep and strength properties determination. The test can be used for penetrating vertically through an ice sheet, or laterally into an ice wall in a trench. The SCT is a special kind of borehole-expansion test. The method consists in pushing a smooth, low-angle, conical indentor into a predrilled conical portion of a borehole, which ends with a smaller diameter pilot hole. The creep properties of ice are then deduced from the relationship between the applied load, time, and cone penetration, which is directly related to the hole expansion. Key words: ice, creep, strength, in situ testing, cone penetration, borehole expansion, sharp cone.
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Basoka, I. Wayan Ariyana. "PERBANDINGAN DAYA DUKUNG TIANG PANCANG BERDASARKAN PENGUJIAN CONE PENETRATION TEST (CPT) DAN STANDARD PENETRATION TEST (SPT) PADA TANAH BERPASIR." UKaRsT 4, no. 1 (2020): 109. http://dx.doi.org/10.30737/ukarst.v4i1.793.

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Design of building structure always related to the foundation, field testing is often done to test the bearing capacity of the soil in the form of a cone penetration test (CPT) and a standard penetration test (SPT). From the two field tests that are often done, it is necessary to research the amount of bearing capacity obtained through CPT and SPT data. This study uses a bearing capacity analysis of the pile foundation using CPT and SPT data in Pesanggaran, Bali, Indonesia. The analysis was carried out by comparing the bearing capacity of pile foundations using pile foundations with dimensions of 15 cm, 20 cm, 25 cm and 30 cm at a level of 10 meters. The results of the bearing capacity percentage are then compared. From the analysis conducted, the bearing capacity of pile foundations using CPT data has a higher value than the carrying capacity of poles using SPT data with a bearing capacity difference of 10,4-16,3%.Perancangan suatu struktur erat kaitannya dengan fondasi, pengujian lapangan yang sering dilakukan untuk mengetahui daya dukung fondasi berupa cone penetration test (CPT) dan standard penetration test (SPT). Dari dua pengujian lapangan yang sering dilakukan, maka perlu dilakukan dilakukan penelitian mengenai seberapa besar perbedaan hasil daya dukung yang diperoleh melalui data CPT dan SPT. Penelitian ini melakukan perbandingan analisis daya dukung fondasi tiang dengan menggunakan data CPT dan SPT di Pesanggaran, Bali, Indonesia. Analisis dilakukan dengan membandingkan daya dukung fondasi tiang menggunakan fondasi tiang berdimensi 15 cm, 20 cm, 25 cm, dan 30 cm pada kedalaman 10 meter. Hasil persentase daya dukung yang diperoleh kemudian dibandingkan. Dari analisis yang dilakukan, diperoleh daya dukung fondasi tiang menggunakan data CPT memiliki nilai lebih tinggi daripada daya dukung tiang menggunakan data SPT dengan perbedaan daya dukung 10,4-16,3%.
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Suryanegara Dwipa, R. S., I. W. Arya, I. W. Wiraga, and I. M. W. Pramana. "Evaluation of liquefaction potential using cone penetration test (CPT) and standard penetration test (SPT)." Journal of Physics: Conference Series 1450 (February 2020): 012016. http://dx.doi.org/10.1088/1742-6596/1450/1/012016.

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Gunawan, Sumiyati, Niken Silmi Surjandari, and Bambang Setiawan. "Tahanan Lateral Pondasi Tiang Berdasar Cone Penetration Test." Jurnal Teknik Sipil 15, no. 4 (2020): 218–24. http://dx.doi.org/10.24002/jts.v15i4.3798.

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Kapasitas beban lateral pondasi tiang (Pu) merupakan hal utama untuk perencanaan konstuksi dengan beban lateral yang cukup dominan. Kapasitas Pu didasarkan pada kondisi keseimbangan resultan gaya pada tiang dan ketahanan tanah lateral serta distribusi tekanan tanah PL sepanjang kedalaman tiang berdasarkan metode konvensional, tetapi sulit diterapkan pada tanah nonhomogen, karena kondisi tanah nonlinier terhadap kedalaman. Insitu test yang paling sering digunakan karena mudah, cepat dan hemat biaya adalah cone penetration test (CPT), yang memberikan profil tanah secara kontinu, dan lebih mendefinisikan jenis lapisan, ketebalan, dan kepadatan dari masing masing lapisan. Meskipun jarang disebut dalam literatur tentang penggunaan data CPT untuk menganalisa perilaku defleksi pondasi tiang, beberapa peneliti menyatakan hubungan antara resistensi kerucut qc dan tahanan lateral tanah Pu di sepanjang kedalaman tiang. Salah satu metode yang menyajikan pengembangan metode kurva p-y untuk pondasi tiang dengan dasar resistensi penetrasi kerucut qc adalah Bouafia, A. (2014). Berdasarkan pengembangan oleh Bouafia, penulis menganalisa hubungan antara resistensi kerucut qc dan ketahanan lateral tiang Pu untuk menentukan beban lateral pondasi tiang pada tanah lunak di Wates, Kulon Progo DIY dan dibandingkan dengan teori Broms 1964; metode Kurva p-y, dan pengembangan rumus Bouafia, dengan kekakuan tiang, jenis tanah dan defleksi maksimum yang sama maka diperoleh sebagai berikut, teori Broms, LBroms=14,16m ; PuBroms=32,4ton ; MBroms=19,88tonm. Metode Kurva p-y, Lp-ycurve =14,4m ; Pup-ycurve s=28,0ton ; Mp-ycurve =7,50tonm dan Metode Bouafia, LBouafia =17,9m ; PuS2bouafia=34ton; PuS4bouafia=14,8ton; MS2bouafia =11,3tonm ; MS4bouafia =4,9tonm.
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Dissertations / Theses on the topic "Cone Penetration Test (CPT)"

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Gustafson, Ellen, and Emelie Strömgren. "Cone Penetration Test - a comparative study of the equipment and the performance." Thesis, Linköpings universitet, Kommunikations- och transportsystem, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-121130.

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Inom geotekniken behövs ofta jordlagerföljden och jordens egenskaper bedömmas. För att göra detta används ofta sonderingsmetoden Cone Penetration Test (CPT), som används främst till att ge en preliminär bedömning av jordlagerföljden och en uppskattning av geotekniska egenskaper. CPT-sondering är en avancerad metod som ställer högre krav på både fältgeotekniker och handläggande geotekniker jämfört med andra metoder och är en metod där många faktorer påverkar resultatet. Detta examensarbete undersöker vilka faktorer som påverkar CPT-sondering med fokus på utrustning och handhavandet hos teknikkonsultföretaget WSP i Östergötland. Syftet med arbetet är att jämföra och utvärdera metod och resultat hos WSP för att se om det finns några skillnader i handhavandet och mellan de tre olika sonderna som är använda i studien. I studien utfördes 12 stycken CPT-sonderingar i samma område och dessa utfördes av samma fältgeotekniker, där häften av sonderingarna var utförda med förborrning och vattenfyllt sonderingshål och den andra hälften utförda med endast förborrning. Dessutom utfördes en skruvprovtagning i området. När sonderingarna var gjorda utvärderades resultaten i programvaran Conrad. Sonderingarna utfördes i ett område mellan Vånga och Göten, väster om Norrköping och området består främst av silt med lager av sand. Resultatet av studien visar att sond A har de jämnaste resultaten och orsaken till detta är troligtvis att denna sond är den som senast har kalibrerats. Efter sondering 2-C upptäcktes en skada på friktionshylsan för sond C, friktionshylsan byttes ut och trots detta ser resultatet för denna sond bra ut. Den första sonderingen gjord efter byte av friktionshylsan avviker dock i resultatet jämfört med de andra sonderingarna gjorda med sond C. Resultatet från sond B visar att denna sond uppnår lägre värde jämfört med de andra sonderna. En orsak till detta anses vara att denna sond är den sond som är kalibrerad med det tidigaste datumet. Slutsatsen i studien är att de faktorer som påverkar resultatet mest är kalibrering, att sonden är vätskemättad och att kontroller har utförts av sonden innan och efter sonderingen.
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Ozan, Cem. "Estimation Of Grain Characteristics Of Soils By Using Cone Penetration Test (cpt) Data." Master's thesis, METU, 2003. http://etd.lib.metu.edu.tr/upload/1088988/index.pdf.

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Due to lack of soil sampling during a conventional cone penetration testing (CPT), it is necessary to classify soils based on recorded tip and sleeve friction and pore pressure (if available) values. However, currently available soil classification models are based on deterministic and judgemental determination of soil classification boundaries which do not address the uncertainties intristic to the problem. Moreover, size and quality of databases used in the development of these soil classification models are undocumented and thus questionable. Similar limitations do also exist in the development of SPT-CPT correlations which are widely used in SPT dominated design such as soil liquefaction triggering. To eliminate these discussed limitations, within the confines of this study it is attempted to present (1) a new probabilistic CPT- based soil classification methodology, and (2) new SPT-CPT correlations which address the uncertainties intrinsic to the problems. For these purposes, a database composed of 400 CPT/SPT boring data pairs was compiled. It is intended to develop probabilistic models, which will correlate CPT tip and sleeve friction values to actual soil classification and CPT tip resistance to SPT blow count N. The new set of correlations, model parameters of which estimated by implementing maximum likelihood methodology, presented herein are judged to represent a robust and defensible basis for (1) prediction of soil type based on CPT data and, (2) estimation of SPT-N value for given CPT data.
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Deshpande, Kedar M. "A Cone Penetration Test (CPT) based assessment of explosive compaction in mine tailings." Thesis, University of British Columbia, 2009. http://hdl.handle.net/2429/8660.

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Failure of tailings dams can occur due to liquefaction of saturated and loosely deposited silt and sand sized tailings under both seismic and static conditions. The consequences in terms of loss of lives and property are severe. As tailings possess soil-like structure and grain size distribution, it is possible to use ground improvement measures typically used for soils to improve the stability of these dams. It is also possible to use densification techniques to reduce the volume of the in-place tailings to provide greater storage space. This thesis reviews the assessment of ground densification at a tailings facility in Northern Ontario at which a section of tailings dam was densified by explosive compaction (EC). The EC was complemented by surface compaction using Dynamic Compaction and Rapid Impact Compaction. Due to the nature of tailings deposition, the grain size distribution and density of materials in the dam varied considerably both laterally and with depth. This complicated the assessment of the improvement obtained. Piezometer cone penetration test data obtained before and at various times after ground treatment were reviewed to assess the range of tailings types encountered in the dam and the level of tip resistance achieved by the ground treatment. Settlement and piezometer data were also reviewed but were of insufficient quality or quantity to be useful as indicators of the degree of improvement obtained. Cone data were normalized for stress level and were sorted according to a unified soil behaviour type classification scheme previously used in soils and tailings. The soil behaviour type index, Ic, was found to be a useful indicator of tailings type. Despite the extreme variability of the deposits, it proved possible to identify the level of tip resistance achieved by the ground treatment in various material types at the site.
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Corob, Alexander Edward. "Analysis of Applied Modifications to a Cone Penetration Test-based Lateral Spread Displacement Prediction Model." BYU ScholarsArchive, 2019. https://scholarsarchive.byu.edu/etd/9065.

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This study set out to examine the effectiveness and reliability of six modifications to the Zhang et al. (2004) CPT-based lateral spread model. A regression analysis, distribution charts, and a discriminant analysis are performed to determine how effective the modifications are on the model. From the comparisons and statistical analysis performed in this study, application of these modifications reduces over-predictions from strain-based prediction methods. Unfortunately, the tendency to under-predict displacements on average is also increased.
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Taskinen, Timo I. "On the steady-state flow of an elastic-plastic material past cones and wedges." Thesis, University of Oxford, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.302330.

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Svensson, Axel. "Jämförelse av odränerad skjuvhållfasthet mellan CPT-sondering och fallkonförsök på Uppsalalera." Thesis, Uppsala universitet, Institutionen för geovetenskaper, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-325059.

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The knowledge about the shear strength of a soil is important because it is a key parameter that is used in many calculations in construction engineering. Some examples of what’s possible to calculate are slope stability, the soil pressure against retaining walls and the carrying capacity of building foundations. Great economic losses or, in the worst case scenario the risk for human lives, could be the result if the geotechnical properties of the soil are ignored. This report considers the undrained shear strength of clay from Uppsala. There are different methods based on empirical experiences which are used to determine the undrained shear strength of a clay. In this project the methods and the results in undrained shear strength are compared between CPT-probing, which is carried out in-situ, and the drop cone test which is done in a laboratory. The reason for this comparison is that they usually don’t show the same results.The tests had already been made before this project started and therefore it is only the comparison of the results between the methods that has been done. The comparison was done by creating charts in Excel where the results from CPT and the drop cone test from was put together from the same point. The shear strength values from the methods were also statistically analysed with a t-test to see if they show the same hypothetical expected value with 95 % significance in every test point<br>Kunskap om skjuvhållfastheten är viktig då den används för beräkningar inom byggoch anläggningsbranschen. Exempel på vad som kan beräknas är släntstabilitet, jordtrycket mot en spont eller bärförmågan hos en byggnadsgrund. Stora ekonomiska förluster och i värsta fall fara för människoliv kan bli resultatet om jordens geotekniska egenskaper ignoreras. Denna rapport tar upp den odränerade skjuvhållfastheten i Uppsalalera. Det finns olika metoder som bygger på empiriska erfarenheter som kan användas för att ta reda på den odränerade skjuvhållfastheten i lera. I föreliggandeprojekt jämförs metoderna och resultaten i odränerad skjuvhållfasthet mellan CPT-sondering som utförs in-situ och fallkonförsök som utförs på lerprover i ett laboratorium. Anledningen till studien är att metoderna inte alltid ger samma mätvärden. Undersökningarna utfördes innan projektet började. Jämförelsen har gjorts genom den statistiska jämförelsen t (student)-test. Resultatet från t-testet visar att skjuvhållfasthetsvärdena från CPT respektive fallkonförsöken från samma undersökningspunkt och från samma nivå har samma hypotetiska förväntade värde på 95 % signifikansnivå. Genom sammanställda grafer syns att metoderna i de flesta fall överensstämmer till ett djup på minst 20 m.
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Žaržojus, Gintaras. "Analysis of the results and it influence factors of dynamic probing test and interrelation with cone penetration test data in Lithuanian soils." Doctoral thesis, Lithuanian Academic Libraries Network (LABT), 2010. http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2010~D_20101230_093807-41798.

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The object of the thesis is soils that occur within the territory of Lithuania and may be used as basis for building foundations. The thesis studies the interpretation of the results of Dynamic Penetration Test (DPT) and Cone Penetration Test (CPT) of soils, reliability of direct (number of blows (Nx)) and de-rivative (dynamic point resistance (qd)) DPT parameters, analyses the result influencing factors and interrelation between DPT and CPT parameters. The data analysis has been performed by means of mathematical methods of statistics, also using analytical and empirical solutions. Having examined calculation data it was determined that the indirect parameter of Dy-namic Penetration Test – dynamic point resistance (qd) should not be used due to calculation de-faults and replaced with the direct parameter – number of blows (Nx). The analysis of DPT re-sults influencing factors shows that the lateral overburden pressure together with friction of rods are those with the greatest impact on penetration data. Within the scope of the work, it has re-vealed that the number of blows (Nx) and static cone resistance (qc) are closely correlated and it depends on the grain size distribution of soil, geotechnical properties and depth of occurrence.<br>Disertacijos objektas yra Lietuvos teritorijoje slūgsantys gruntai, kurie gali būti statinių pamatų pagrindu. Disertacijoje nagrinėjama grunto tyrimo dinaminiu (DPT) ir statiniu (CPT) zondavimu rezultatų interpretacija, tiesioginio (smūgių skaičiaus (Nx)) ir išvestinio (dinaminės kūgio smigos (qd)) DPT rodiklių patikimumas, analizuojami rezultatus įtakojantys veiksniai ir sąsajos tarp DPT bei CPT zondavimo rodiklių. Duomenų analizė atlikta matematiniais statistiniais metodais, taip pat panaudojant analitinius ir empirinius sprendinius. Išnagrinėjus skaičiavimo duomenis buvo nustatyta, kad netiesioginis dinaminio zonda-vimo rodiklis – dinaminė kūgio smiga (qd) dėl skaičiavimo trukumų yra nenaudotinas ir keisti-nas į tiesioginį rodiklį – smūgių skaičių (Nx). DPT rezultatus įtakojančių veiksnių analizė paro-dė, kad zondavimo duomenims didžiausią įtaką turi gruntų šoninis geostatinis slėgis ir kartu zondavimo štangų trintis į gruntą. Darbo metu buvo gauta, kad egzistuoja tamprus koreliacinis ryšys tarp smūgių skaičiaus (Nx) ir statinės kūgio spraudos (qc), kuris priklauso nuo grunto gra-nuliometrinės sudėties, mechaninių savybių ir slūgsojimo gylio.
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Arndt, Alex Michael. "Performance-Based Liquefaction Triggering Analyses with Two Liquefaction Models Using the Cone Penetration Test." BYU ScholarsArchive, 2017. https://scholarsarchive.byu.edu/etd/6945.

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This study examines the use of performance-based engineering in earthquake liquefaction hazard analysis with Cone Penetration Test data (CPT). This work builds upon previous research involving performance-based liquefaction analysis with the Standard Penetration Test (SPT). Two new performance-based liquefaction triggering models are presented herein. The two models used in this liquefaction analysis are modified from the case-history based probabilistic models proposed by Ku et al. (2012) and Boulanger and Idriss (2014). Using these models, a comparison is made between the performance-based method and the conventional pseudo-probabilistic method. This comparison uses the 2014 USGS probabilistic seismic hazard models for both methods. The comparison reveals that, although in most cases both methods predict similar liquefaction hazard using a factor of safety against liquefaction, by comparing the probability of liquefaction, the performance-based method on average will predict a smaller liquefaction hazard.
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He, Jingwen. "Development of a Simplified Performance-Based Procedure for Assessment of Post-Liquefaction Settlement Using the Cone Penetration Test." BYU ScholarsArchive, 2019. https://scholarsarchive.byu.edu/etd/7532.

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Earthquake-induced liquefaction can cause severe damage to infrastructure is a serious concern in civil engineering practice. Post-liquefaction settlement is one of the common effects of liquefaction. The ability to predict and quantify post-liquefaction free-field settlement is a crucial part of seismic design. Many approaches have been developed during the past 50 years to perform liquefaction hazard analysis. The performance-based earthquake engineering (PBEE) framework developed by the Pacific Earthquake Engineering Research (PEER) center is a probabilistic framework that can provide a more accurate and complete seismic hazard analysis than other traditional methods. However, the PBEE framework is not widely used in routine projects due to its complexity.Previous researches have been performed to develop simplified performance-based procedures that can combine the simplicity of a traditional method and the accuracy of the full performance-based method. Unfortunately, these simplified performance-based procedures are only available for SPT. With the increase use of CPT, there is a need to develop simplified performance-based procedures for CPT. This study develops simplified performance-based procedures for the assessment of post-liquefaction free-field settlement for CPT, using the Boulanger and Idriss (2014) and the Ku et al. (2012) triggering models. The Juang et al. (2013) model, which is a probabilistic version of the Ishihara and Yoshimine (1992) model, is used in this study to performance free-field settlement calculations. The simplified procedure is based on the idea of liquefaction reference parameter maps. Reference values obtained from these parameter maps are then adjusted, using correction equations, to site-specific conditions. This study presents the deviations of the correction equations for the simplified performance-based procedure. The simplified procedure will then be validated in which 18 cities across the United States are analyzed using both the simplified procedure and the full performance-based procedure. The simplified performance-based procedure is shown to reasonably estimate the results of the full performance-based procedure. Finally, a study is performed to compare the accuracy and consistency of the simplified performance-based and the conventional pseudo-probabilistic procedures. The simplified performance-based procedure is found to provide better approximations of the full performance-based procedure with more consistency and precision.
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Blonquist, Jenny Lee. "Development of a Simplified Performance-Based Procedure for Assessment of Liquefaction Triggering for the Cone Penetration Test." BYU ScholarsArchive, 2020. https://scholarsarchive.byu.edu/etd/8438.

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Soil liquefaction can cause devastating damage and loss and is a serious concern in civil engineering practice. One method for evaluating liquefaction triggering potential is a risk-targeted probabilistic approach that has been shown to provide more consistent and accurate estimates of liquefaction risk than traditional methods. This approach is a “performance-based” procedure which is based off of the performance-based earthquake engineering (PBEE) framework developed by the Pacific Earthquake Engineering Research (PEER) Center. Unfortunately, due to its complexity, performance-based liquefaction assessment is not often used in engineering practice. However, previous researchers have developed a simplified performance-based procedure which incorporates the accuracy and benefits of a full performance-based procedure while maintaining a more simplistic and user-friendly approach. Until now, these simplified performance-based procedures have only been available for the SPT (Standard Penetration Test). With the increasing popularity of the CPT (Cone Penetration Test), a simplified procedure is needed for CPT-based liquefaction assessment. This thesis presents the derivation of a simplified performance-based procedure for evaluating liquefaction triggering using the Ku et al. (2012) and Boulanger and Idriss (2014) models. The validation study compares the results of the simplified and full performance-based procedures. The comparison study compares the accuracy of the simplified performance-based and traditional pseudo-probabilistic procedures. These studies show that the simplified performance-based procedure provides a better and more consistent approximation of the full performance-based procedure than traditional methods. This thesis also details the development of the liquefaction loading maps which are an integral part of the simplified method.
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Books on the topic "Cone Penetration Test (CPT)"

1

Mayne, Paul W. Cone penetration testing. Transportation Research Board, National Research Council, 2007.

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Construction Industry Research and Information Association., ed. Cone penetration testing: Methods and interpretation. Construction Industry Research and Information Association, 1987.

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Salgado, Rodrigo. Pile design based on cone penetration test results. Purdue University, [Joint Transportation Research Program, 1999.

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Geological Survey (U.S.), ed. Subsurface exploration with the cone penetration testing truck. U.S. Dept. of the Interior, U.S. Geological Survey], 2003.

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Frost, A. J. D. Uses and efficacy of the cone penetration test: Isleport Business Park. Middlesex Polytechnic, 1990.

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Carter, Robert R. Cone penetration testing for evaluating the liquefaction potential of sands. Geotechnical Services Branch, Research and Laboratory Services Division, U.S. Dept. of the Interior, Bureau of Reclamation, 1988.

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Coerts, Alfred. Analysis of static cone penetration test data for subsurface modelling: A methodology. Koninklijk Nederlands Aardrijkskundig Genootschap/Faculteit Ruimtelijke Wetenschappen Universiteit Utrecht, 1996.

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16, ISSMFE Technical Committee on Penetration Testing of Soils-TC. Report of the ISSMFE Technical Committee on Penetration Testing of Soils--TC 16, with reference test procedures, CPT-SPT-DP-WST. Swedish Geotechnical Society, 1989.

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Woeller, D. J. Use of recent cone penetration test technology in evaluating geotechnical properties of mine waste. s.n, 1989.

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Piezocone and Cone Penetration Test (CPTu and CPT) Applications in Foundation Engineering. Elsevier, 2020. http://dx.doi.org/10.1016/c2017-0-04195-2.

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Book chapters on the topic "Cone Penetration Test (CPT)"

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Togliani, G. "Is CPT a suitable in situ test for characterizing gravely sands?" In Cone Penetration Testing 2022. CRC Press, 2022. http://dx.doi.org/10.1201/9781003329091-170.

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Togliani, G. "Is CPT a suitable in situ test for characterizing gravely sands?" In Cone Penetration Testing 2022. CRC Press, 2022. http://dx.doi.org/10.1201/9781003308829-170.

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McCallum, A. B., and G. White. "Estimating bearing capacity of polar snow using the Cone Penetration Test (CPT)." In Cone Penetration Testing 2022. CRC Press, 2022. http://dx.doi.org/10.1201/9781003329091-152.

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McCallum, A. B., and G. White. "Estimating bearing capacity of polar snow using the Cone Penetration Test (CPT)." In Cone Penetration Testing 2022. CRC Press, 2022. http://dx.doi.org/10.1201/9781003308829-152.

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Faour, G. A., and K. N. Khouri. "Verification of 3D FEM analysis of ground improvement works using CPT test results." In Cone Penetration Testing 2022. CRC Press, 2022. http://dx.doi.org/10.1201/9781003329091-139.

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Faour, G. A., and K. N. Khouri. "Verification of 3D FEM analysis of ground improvement works using CPT test results." In Cone Penetration Testing 2022. CRC Press, 2022. http://dx.doi.org/10.1201/9781003308829-139.

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Shahgholian, Rashid, Cristiana Ferreira, and António Viana da Fonseca. "Correlation between SPT and CPT tests in liquefiable deposits." In Cone Penetration Testing 2022. CRC Press, 2022. http://dx.doi.org/10.1201/9781003329091-100.

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Hov, S., K. Borgström, and P. Paniagua. "Full-flow CPT tests in a nearshore organic clay." In Cone Penetration Testing 2022. CRC Press, 2022. http://dx.doi.org/10.1201/9781003329091-63.

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Shahgholian, Rashid, Cristiana Ferreira, and António Viana da Fonseca. "Correlation between SPT and CPT tests in liquefiable deposits." In Cone Penetration Testing 2022. CRC Press, 2022. http://dx.doi.org/10.1201/9781003308829-100.

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Hov, S., K. Borgström, and P. Paniagua. "Full-flow CPT tests in a nearshore organic clay." In Cone Penetration Testing 2022. CRC Press, 2022. http://dx.doi.org/10.1201/9781003308829-63.

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Conference papers on the topic "Cone Penetration Test (CPT)"

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Xie, Qiang, Yuxia Hu, Mark Cassidy, and Alireza Salehi. "Cone Penetration Test in Stiff Over Soft Clay in Centrifuge Test." In ASME 2019 38th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/omae2019-96698.

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Abstract This paper describes a numerical study on soil characterization of stiff over soft clays in centrifuge test using cone penetration test (CPT), especially when the top stiff layer is thin relative to the centrifuge cone size. An extensive parametric study was conducted using large deformation finite element (LDFE) analysis, with the cone penetrating continuously from the soil surface. The LDFE model has been validated against existing physical test data with very good agreement. Since the bottom soft clay was normally thick enough to fully mobilise the ultimate cone resistance, its undrained shear strength can be interpreted by the existing approach for cone deep penetration in a uniform clay layer. Thus, the challenge was to interpret the strength of the top stiff layer, where the layer thickness was not thick enough to fully mobilise its ultimate resistance. Both top layer thickness ratios (to the cone diameter) and layer strength ratios were considered in the parametric study. Based on the results from LDFE analyses, the interpretation formula of the undrained shear strength in the top stiff layer was proposed as a set of new bearing factors. The proposed cone bearing factor was a function of the ratio of the measured peak cone resistance in the top layer to the stable/ultimate cone resistance in the bottom layer and the ratio between the top layer thickness to the cone diameter. The formula can be used directly when the top layer thickness was known based on the sample preparation. However, the layer interface can be identified based on the study here, if the top layer thickness was not certain. A design flow chart was provided for interpretations of top clay layer strength and top layer thickness based on the cone resistance profile obtained from CPT test.
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McCallum, Adrian B., Andy Barwise, and Roi S. Santos. "Is the Cone Penetration Test (CPT) Useful for Arctic Site Investigation?" In ASME 2014 33rd International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/omae2014-23029.

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A warming Arctic provides increased opportunity for infrastructure development. Although the cone penetration test is used globally for site investigation in unfrozen soils, this discussion paper investigates the use of cone penetration testing to provide in situ data in frozen geomaterials. Historical and contemporary use of cone penetration testing in permafrost, snow, terrestrial ice and sea ice is reviewed, and work conducted across alpine, Arctic and Antarctic environs is considered. Although frozen geomaterials offer challenges to any in situ media assessment, with suitable equipment, cone penetration testing in frozen geomaterials typical of the Arctic is possible.
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Žužul, Petra, and Meho Saša Kovačević. "Development of correlation for estimating maximum soil stiffness via cone penetration test (CPT)." In 6th Symposium on Doctoral Studies in Civil Engineering. University of Zagreb Faculty of Civil Engineering, 2019. http://dx.doi.org/10.5592/co/phdsym.2020.01.

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Apriyono, Arwan, Yanto, Purwanto Bekti Santoso, and Sumiyanto. "Soil classification based on cone penetration test (CPT) data in Western Central Java." In ENGINEERING INTERNATIONAL CONFERENCE (EIC2017): Proceedings of the 6th International Conference on Education, Concept, and Application of Green Technology. Author(s), 2018. http://dx.doi.org/10.1063/1.5028062.

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Shamet, Ryan, Boo Hyun Nam, and David Horhota. "Development of a Sinkhole Raveling Chart Based on Cone Penetration Test (CPT) Data." In National Cave and Karst Research Institute Symposium 7. National Cave and Karst Research Institute, 2018. http://dx.doi.org/10.5038/9780991000982.1038.

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Rupesh, Mahat, Hasan Md Ariful, and Hossain Zahid. "Cone Penetration Test (CPT) Based Liquefaction Hazard Investigation in Mississippi County of Northeast Arkansas." In Tran-SET 2022. American Society of Civil Engineers, 2022. http://dx.doi.org/10.1061/9780784484609.030.

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Xie, Qiang, Yuxia Hu, and Mark J. Cassidy. "Effect of Large Deformation Analysis for Site Investigation Tool - CPT in Layered Soils." In ASME 2020 39th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/omae2020-19099.

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Abstract Cone penetration test (CPT) is regularly used during offshore site investigations to interpret soil stratification and soil characteristics due to its continuous penetration resistance profile. However, its use could be improved if better numerical methods to simulate its penetration could be developed. Finite element (FE) analysis, for instance, has the potential to provide insightful information on soil response and soil flow mechanisms. However, it is challenging to simulate CPT in layered soils, as the soil experiences extremely large strains around the cone and the simulation costs are high. In this study, the efficiency of using a partial large deformation FE (LDFE) approach was explored to examine the pre-embedment depth allowed for saving LDFE analysis cost. The LDFE analysis was conducted using the remeshing and interpolation technical with small strain (RITSS) method to model the large strain problem. Both soft-stiff-soft clays and clay-sand-clay soil were considered to study the thin stiff layer effect when it was sandwiched in soft clay. The LDFE/RITSS analysis compared a CPT penetrating from the soil surface with penetrations from a pre-embedded depth above the stiff layer. Pre-embedded small strain analysis was also conducted for comparison. The results show that the small strain analysis underestimated the resistance in both clay and sand. For the partial LDFE analysis with pre-embedment in the top clay layer, the CPT response in the middle stiff clay layer could be well captured regardless of the initial pre-embedment depth. However, for the middle medium dense sand layer (ID = 60%), the pre-embedment depth needs to have sufficient distance above it (10D, D is cone diameter) to capture the soil response in the sand layer correctly.
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Kelevišius, Kęstutis, and Gintaras Žaržojus. "Initial DPSH Soil Test Results with Accelerometer Installed in the Probe Cone." In The 13th Baltic Sea Region Geotechnical Conference. Vilnius Gediminas Technical University, 2016. http://dx.doi.org/10.3846/13bsgc.2016.016.

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Dynamic penetration test (DPSH) is one of the large amount of soil in-situ tests are known. In world practice, this method usually used for granular soil investigations although it could be applied in cohesive soils. Correlation of received DPSH test results with soil properties is complex and often not reliable. Especially it becomes obvious after application in cohesive soil analysis. In most cases, correlation depends on soil response to dynamic cone penetration and deformation of dynamic sounding equipment. Measurement of cone accelerations allows precisely evaluate loss of hammer energy, displacement of the cone during strike and other parameters. Correlation of DPSH (measured acceleration of the cone) and CPT test results are presented in this article. In this article also presented studies of possibilities to determine dynamic soil characteristics.
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Roy, Anamitra, Shiaohuey Chow, Conleth O’Loughlin, and Mark Randolph. "Effect of Stress History and Shallow Embedment on Centrifuge Cone Penetration Tests in Sand." In ASME 2019 38th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/omae2019-95393.

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Abstract The paper investigates the effect of stress history and shallow embedment on centrifuge cone penetration tests in sand. A series of centrifuge cone penetration tests were performed in loose and dense silica sand at g-levels ranging between 20 and 100 with corresponding overconsolidation ratio (OCR) between 1 and 5. Based on the measured cone tip resistance (qc) profiles, improved empirical correlations have been proposed with depth factors (fD) to impart additional flexibility in accurately back predicting sand relative density (RD) at shallow embedment in normally consolidated (NC) sands. The qc - RD correlations are then extended to capture overconsolidation effects in cone tip resistance, which is broadly consistent with the changes in compressibility and in-situ lateral stresses taking place in sands with increasing OCR levels. The proposed expressions allow accurate quantification of depth corrected CPT profiles in soils of varying overconsolidation ratio, for application in the interpretation of model tests on shallow foundations and anchors and in shallowly buried structures such as pipelines. The expressions also have application for interpretation of field CPT profiles where the thickness of interbedded layers is of similar order of magnitude to the cone diameter.
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Kovačević, Meho Saša, Mario Bačić, Lovorka Librić, Petra Žužul, Kenneth Gavin, and Cormac Reale. "A novel algorithm for vertical soil layering by utilizing the CPT data." In 6th International Conference on Road and Rail Infrastructure. University of Zagreb Faculty of Civil Engineering, 2021. http://dx.doi.org/10.5592/co/cetra.2020.1038.

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Determination of the relevant soil stratigraphy is of the paramount importance for any geotechnical analysis. The cone penetration test (CPT) is the cost-effective, rapid, continuous, and reliable testing method for assessing soil layering and estimating in-situ mechanical properties of soil, and as such is especially useful for subsoil investigations along linear infrastructure networks, such as roads, highways, or railways. The design soil profile can be effectively determined using the CPT-based soil behaviour type (SBT) classification system. However, the soil profile consists of layers of various thickness and some layers can be only a few centimetres thick. Because the cone needs to penetrate to a certain depth to develop the cone resistance and to identify the presence of another layer, thin layers of soil cannot be properly detected. The soil layering algorithm, presented in this paper, merges these thin layers into the adjacent layers and thus overcomes the unreliable determination of the thin layers. The implementation of the proposed algorithm is demonstrated using a CPT carried out on the embankment test-site in north Croatia.
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Reports on the topic "Cone Penetration Test (CPT)"

1

Niazi, Fawad. CPT-Based Geotechnical Design Manual, Volume 1: CPT Interpretation—Estimation of Soil Properties. Purdue University, 2022. http://dx.doi.org/10.5703/1288284317346.

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This manual provides guidance on how to use the cone penetration test (CPT) for site investigation and foundation design. The manual has been organized into three volumes. Volume 1 covers the execution of CPT-based site investigations and presents a comprehensive literature review of CPT-based soil behavior type (SBT) charts and estimation of soil variables from CPT results. Volume 2 covers the methods and equations needed for CPT data interpretation and foundation design in different soil types, while Volume 3 includes several example problems (based on instrumented case histories) with detailed, step-by-step calculations to demonstrate the application of the design methods. The methods included in the manual are current, reliable, and demonstrably the best available for Indiana geology based on extensive CPT research carried out during the past two decades. The design of shallow and pile foundations in the manual is based on the load and resistance factor design (LRFD) framework. The manual also indicates areas of low reliability and limited knowledge, which can be used as indicators for future research.
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Sakleshpur, Venkata A., Monica Prezzi, Rodrigo Salgado, and Mir Zaheer. CPT-Based Geotechnical Design Manual, Volume 2: CPT-Based Design of Foundations—Methods. Purdue University, 2022. http://dx.doi.org/10.5703/1288284317347.

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This manual provides guidance on how to use the cone penetration test (CPT) for site investigation and foundation design. The manual has been organized into three volumes. Volume 1 covers the execution of CPT-based site investigations and presents a comprehensive literature review of CPT-based soil behavior type (SBT) charts and estimation of soil variables from CPT results. Volume 2 covers the methods and equations needed for CPT data interpretation and foundation design in different soil types, while Volume 3 includes several example problems (based on instrumented case histories) with detailed, step-by-step calculations to demonstrate the application of the design methods. The methods included in the manual are current, reliable, and demonstrably the best available for Indiana geology based on extensive CPT research carried out during the past two decades. The design of shallow and pile foundations in the manual is based on the load and resistance factor design (LRFD) framework. The manual also indicates areas of low reliability and limited knowledge, which can be used as indicators for future research.
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Sakleshpur, Venkata A., Monica Prezzi, Rodrigo Salgado, and Mir Zaheer. CPT-Based Geotechnical Design Manual, Volume 3: CPT-Based Design of Foundations—Example Problems. Purdue University, 2022. http://dx.doi.org/10.5703/1288284317348.

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This manual provides guidance on how to use the cone penetration test (CPT) for site investigation and foundation design. The manual has been organized into three volumes. Volume 1 covers the execution of CPT-based site investigations and presents a comprehensive literature review of CPT-based soil behavior type (SBT) charts and estimation of soil variables from CPT results. Volume 2 covers the methods and equations needed for CPT data interpretation and foundation design in different soil types, while Volume 3 includes several example problems (based on instrumented case histories) with detailed, step-by-step calculations to demonstrate the application of the design methods. The methods included in the manual are current, reliable, and demonstrably the best available for Indiana geology based on extensive CPT research carried out during the past two decades. The design of shallow and pile foundations in the manual is based on the load and resistance factor design (LRFD) framework. The manual also indicates areas of low reliability and limited knowledge, which can be used as indicators for future research.
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4

Salgado, Rodrigo, and Sungmin Yoon. Dynamic Cone Penetration Test (DCPT) for Subgrade Assessment. Purdue University, 2003. http://dx.doi.org/10.5703/1288284313196.

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Salgado, Rodrigo, and Junhwan Lee. Pile Design Based on Cone Penetration Test Results. Purdue University, 1999. http://dx.doi.org/10.5703/1288284313293.

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Huffman, Andrew. Numerical Simulation of Continuous Cone Penetration and Interpretation of CPTu Dissipation Tests. Portland State University Library, 2000. http://dx.doi.org/10.15760/etd.7511.

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Oliynyk, Kateryna, and Matteo Ciantia. Application of a finite deformation multiplicative plasticity model with non-local hardening to the simulation of CPTu tests in a structured soil. University of Dundee, 2021. http://dx.doi.org/10.20933/100001230.

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In this paper an isotropic hardening elastoplastic constitutive model for structured soils is applied to the simulation of a standard CPTu test in a saturated soft structured clay. To allow for the extreme deformations experienced by the soil during the penetration process, the model is formulated in a fully geometric non-linear setting, based on: i) the multiplicative decomposition of the deformation gradient into an elastic and a plastic part; and, ii) on the existence of a free energy function to define the elastic behaviour of the soil. The model is equipped with two bonding-related internal variables which provide a macroscopic description of the effects of clay structure. Suitable hardening laws are employed to describe the structure degradation associated to plastic deformations. The strain-softening associated to bond degradation usually leads to strain localization and consequent formation of shear bands, whose thickness is dependent on the characteristics of the microstructure (e.g, the average grain size). Standard local constitutive models are incapable of correctly capturing this phenomenon due to the lack of an internal length scale. To overcome this limitation, the model is framed using a non-local approach by adopting volume averaged values for the internal state variables. The size of the neighbourhood over which the averaging is performed (characteristic length) is a material constant related to the microstructure which controls the shear band thickness. This extension of the model has proven effective in regularizing the pathological mesh dependence of classical finite element solutions in the post-localization regime. The results of numerical simulations, conducted for different soil permeabilities and bond strengths, show that the model captures the development of plastic deformations induced by the advancement of the cone tip; the destructuration of the clay associated with such plastic deformations; the space and time evolution of pore water pressure as the cone tip advances. The possibility of modelling the CPTu tests in a rational and computationally efficient way opens a promising new perspective for their interpretation in geotechnical site investigations.
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Salgado, Rodrigo, Monica Prezzi, and Eshan Ganju. Assessment of Site Variability from Analysis of Cone Penetration Test Data. Purdue University, 2015. http://dx.doi.org/10.5703/1288284315523.

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Luo, Xiadong, Rodrigo Salgado, and A. Altschaeffl. Cone Penetration Test to Assess the Mechanical Properties of Subgrade Soils. Purdue University, 1998. http://dx.doi.org/10.5703/1288284313162.

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Updike, R. G., and C. A. Ulery. A geotechnical cross section for downtown Anchorage using the electric-cone-penetration test. Alaska Division of Geological & Geophysical Surveys, 1986. http://dx.doi.org/10.14509/2402.

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