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Journal articles on the topic 'Sonic integrity testing'

Author: Grafiati
Published: 4 June 2021
Last updated: 11 February 2022

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1

Hung, Michael Y. Y., and H. M. Shang. "OS02W0433 Nondestructive testing of bonding integrity between tiles and wall using sonic-shearography." Abstracts of ATEM : International Conference on Advanced Technology in Experimental Mechanics : Asian Conference on Experimental Mechanics 2003.2 (2003): _OS02W0433. http://dx.doi.org/10.1299/jsmeatem.2003.2._os02w0433.

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2

Liong, Gouw Tjie. "Sonic Logging Vs PIT untuk Mendeteksi Integritas Pondasi Tiang." ComTech: Computer, Mathematics and Engineering Applications 2, no. 2 (December 1, 2011): 1031. http://dx.doi.org/10.21512/comtech.v2i2.2853.

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Non destructive testing on piles can be divided into two main categories. The first category is to find out the integrity of the piles, such as pile integrity testing (PIT) and sonic logging. The second category is to find out the pile capacity, such as dynamic load testing/pile driving analysis. Since the early 1990s, the application of the tests was brought into practice and gained its popularity in Indonesia. However, the basic theory behind the testing has not been widely disseminated. This study tries to elaborate the first category of the testing, i.e. the pile integrity testing and sonic logging. The basic theory, the advantages and disadvantages, the application, the limitation and the interpretation of those techniques shall be discussed. Comparison on case studies of those testing methods also shall be given.
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3

Zhussupbekov, Askar, Yoshinori Iwasaki, Nurgul Shakirova, and Eun Chul Shin. "CONTROL AND QUALITY OF PILES BY NON-DESTRUCTIVE EXPRESS METHODS: LOW STRAIN METHOD AND CROSS-HOLE SONIC LOGGING." International Journal for Computational Civil and Structural Engineering 15, no. 1 (March 25, 2019): 171–80. http://dx.doi.org/10.22337/2587-9618-2019-15-1-171-180.

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This paper described using Low Strain Method and Cross-Hole Sonic logging (CSL) for identify of integrity of bridge foundations of LRT in Astana, Kazakhstan. The CSL is a method prescribed by ASTM D6760 - 08, Standard Test Method for Integrity Testing of Concrete Deep Foundations. This method is considered to be more accurate than sonic echo testing in the determination of soundness of concrete. The sonic access tubes do not contribute to the structural capacity of the pile. The bored piles of LRT are 1.0^1.5 m of diameters and 10^55 m of lengths. Design bearing capacity of piles is more than 4500 kN. At the testing period were founded defects in foundation bodies. To check of integrity were conducted by static load tests. The CSL test is based on the length of time for an ultrasonic wave to be propagated between any two of the selected tubes. The velocity of the propagated wave depends on the material through which the wave is transmitted. The aim of this paper is to discuss the advantages and disadvantages of Low Strain Method and CSL methods by analysis of field testing. For checking integrity applying two methods - Low Strain Method and Cross-Hole Sonic Logging. The aim of this paper is to discuss the advantages and disadvantages of each method using the examples of a real application.
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4

Imada, Kazuo, Tatsunori Matsumoto, and Masashi Nakabayashi. "Estimation of Pile Head Stiffness Using Analytical Results of Sonic Integrity Testing." Soils and Foundations 41, no. 2 (April 2001): 123–32. http://dx.doi.org/10.3208/sandf.41.2_123.

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5

Lo, Kuo Feng, Sheng Huoo Ni, Jenq Jy Charng, and Yan Hong Huang. "Time–Frequency Signal Analysis for Nondestructive Evaluation of Pile with Cap." Advanced Materials Research 47-50 (June 2008): 9–12. http://dx.doi.org/10.4028/www.scientific.net/amr.47-50.9.

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As stress waves decay as they pass through the pile foundation system, it is extremely challenging for all nondestructive testing methods to evaluate the pile integrity of a shaft underneath a structure. In this study, time–frequency signal analysis (TFSA) is used for signal processing and adopted to interpret the pile integrity testing signal. An experimental case with pile lengths of 58m with caps, were tested by the low strain sonic echo method. Traditional time domain analyses can not identify the pile tip response signals 58m lengths. After time-history curves are transformed into a time–frequency domain distribution, the results indicate the pile tip can be located more easily and clearly than the traditional time-domain analyses of pile integrity testing allowed for.
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6

Hung, Michael Y. Y., and Huai Min Shang. "OS2(4)-17(OS02W0433) Nondestructive Testing of Bonding Integrity Between Tiles and Wall Using Sonic-Shearography." Abstracts of ATEM : International Conference on Advanced Technology in Experimental Mechanics : Asian Conference on Experimental Mechanics 2003 (2003): 283. http://dx.doi.org/10.1299/jsmeatem.2003.283.

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7

Liao, Shu-Tao, Chin-Kuo Huang, and Chung-Yue Wang. "Sonic echo and impulse response tests for length evaluation of soil nails in various bonding mediums." Canadian Geotechnical Journal 45, no. 7 (July 2008): 1025–35. http://dx.doi.org/10.1139/t08-034.

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The objective of this paper is to present the results of research for evaluating the installed lengths of soil nails with nondestructive testing methods. Two closely related methods, the sonic echo test and the impulse response test, both of which had been widely applied to assess the integrity of drilled shafts and driven piles, were evaluated to test their capabilities on soil nails. To carry out this study, soil nails of various lengths were embedded in different surrounding materials in the laboratory and then tested with both methods to predict their lengths. The surrounding materials studied in this research included soil and cement grout. Finally, field tests for in situ soil nails were carried out. The results indicated that the relative stiffness of the soil nail to the bond material plays a very important role in the success of testing. It is hoped that through this kind of study, the capability and limitation of using these nondestructive testing techniques to determine the installed lengths or to evaluate the bonding conditions of soil nails can be better understood.
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8

Ni, S. H., J. J. Charng, and K. F. Lo. "Nondestructive Evaluation of In-Isolation Pile Shaft Integrity by Wigner-Ville Distribution." Journal of Mechanics 23, no. 1 (March 2007): 15–21. http://dx.doi.org/10.1017/s1727719100001039.

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AbstractThe Wigner-Ville Distribution is a new numerical analysis tool for signal process technique in the time-frequency domain and it can offer assistance and enhance signal characteristics for better resolution both easily and quickly. Time-frequency transform can describe how a spectrum of signals changes with time owing to defects and boundary conditions. In this study, five single pre-cast concrete piles have been tested and evaluated by both sonic echo method and Wigner-Ville distribution (WVD). The appropriateness of time-frequency domain analysis is discussed. Furthermore, two difficult problems in nondestructive evaluation problems are discussed and solved: the first one is with a pile with slight defect, whose necking area percentage is less than 10%, and the other is a pile with multiple defects. The results show that WVD can not only recognize the characteristics easily, but also locate the defects more clearly than the traditional pile integrity testing method.
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9

NI, SHENG-HUOO, KUO-FENG LO, and YAN-HONG HUANG. "NONDESTRUCTIVE INTEGRITY EVALUATION OF PC PILE USING WIGNER-VILLE DISTRIBUTION METHOD." Modern Physics Letters B 22, no. 11 (May 10, 2008): 959–64. http://dx.doi.org/10.1142/s021798490801567x.

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Nondestructive evaluation (NDE) techniques have been used for years to provide a quality control of the construction for both drilled shafts and driven concrete piles. This trace is typically made up of transient pulses reflected from structural features of the pile or changes in its surrounding environment. It is often analyzed in conjunction with the spectral response, mobility curve, arrival time, etc. The Wigner-Ville Distribution is a new numerical analysis tool for signal process technique in the time-frequency domain and it can offer assistance and enhance signal characteristics for better resolution both easily and quickly. In this study, five single pre-cast concrete piles have been tested and evaluated by both sonic echo method and Wigner-Ville distribution (WVD). Furthermore, two difficult problems in nondestructive evaluation problems are discussed and solved: the first one is with a pile with slight defect, whose necking area percentage is less than 10%, and the other is a pile with multiple defects. The results show that WVD can not only recognize the characteristics easily, but also locate the defects more clearly than the traditional pile integrity testing method.
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10

Zhussupbekov, Askar, Ivan Morev, Gulzhanat Tanyrbergenova, and Nurgul Shakirova. "Evaluation of the quality of pile foundations by different methods." MATEC Web of Conferences 265 (2019): 05013. http://dx.doi.org/10.1051/matecconf/201926505013.

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At the present time, in Astana city is going on works by construction public transport system LRT (Light Railway Transport). LRT is an overhead road with two railway lines. The first stage of construction is including construction of overhead road (bridge) with 22.4 km length and 18 stations. The foundation of bridge is the bored piles with cross-section of 1.0-1.5 m and length of 8-35 m. A design bearing capacity of pile is 4500-8000 kN. Chinese drilling rigs Zoomlion was used for soil boring without casing. A polymer slurry is used to maintain the walls of boreholes in sand and gravel soils. In these conditions very important point is the integrity of concrete body of each bored piles. For checking the integrity was used two methods – the Low Strain Method and the Cross-Hole Sonic Logging. The aim of this paper is finding the advantages and disadvantages of each method which applying on testing site.
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11

Zhussupbekov, Askar Zh, Yoshinori Iwasaki, and Abdulla R. Omarov. "THE EXPERIENCE DIFFERENT OF PILING TESTING ON PROBLEMATICAL SOIL GROUND OF ASTANA, KAZAKHSTAN." International Journal for Computational Civil and Structural Engineering 14, no. 4 (December 21, 2018): 158–71. http://dx.doi.org/10.22337/2587-9618-2018-14-4-158-171.

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At the present time, in Astana city is going on works by construction public transport system LRT (Light Railway Transport). LRT is an overhead road with two railway lines. The first stage of construction is including construction of overhead road (bridge) with 22,4 km length and 18 stations. The foundation of bridge is the bored piles with cross-section 1.0HL5 m and length 8-КЗ 5 m. In these conditions, very important to control integrity of concrete body of each bored piles. For checking integrity- applying two methods - Low Strain Method and Cross-Hole Sonic Logging. The aim of this paper is to discuss the advantages and disadvantages of each method using the examples of a real application. The article presents loading tests of large diameter and deep boring piles on the construction site in new capital city of the Republic of Kazakhstan. Finally, some recommendations for testmg methods suitable for problematical ground conditions of Kazakhstan are introduced. Traditionally, pile load tests in Kazakhstan are carried out using static loading test methods. Static pile loading test is the most reliable method to obtain the load-settlement relation of piles. Results of static pile tests using the static compression loading test (by ASTM). static loading test (by GOST) and bi-direction static loading test (by ASTM) methods are presented in this paper. Experienced bored piles with length of 31.5 m. diameter 1000 mm. Hereafter the results of underground testmg by the piles with the methods of vertical static tests of SLT. BDSLT and SCLT are presented, which had been made on Expo 2017 projects, buildings of Pavilion m Astana. Kazakhstan.
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12

Roselli, Ivan, Angelo Tatì, Vincenzo Fioriti, Irene Bellagamba, Marialuisa Mongelli, Roberto Romano, Gerardo De Canio, Mariarosaria Barbera, and Marina Magnani Cianetti. "Integrated approach to structural diagnosis by non-destructive techniques: the case of the Temple of Minerva Medica." ACTA IMEKO 7, no. 3 (October 24, 2018): 13. http://dx.doi.org/10.21014/acta_imeko.v7i3.558.

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In the present paper an integrated approach of a wide range of non-destructive tests (NDTs) was applied to study an archeological ruined building located in Rome, the so-called Temple of Minerva Medica. Applied NDTs focused on the monument properties and environmental conditions affecting its structural behavior (geometry, thermal and mechanical properties, microclimatic monitoring, ambient vibration response). Two surveys were performed in August and December 2016 combining 3D laser scanning, thermal infrared, air temperature and relative humidity acquisitions. In addition, high resolution digital images were acquired and processed by stereo-photogrammetry Structure from Motion (SfM) methodology, carried out for detailed reconstruction of the crack pattern of the monument. In order to obtain information on the integrity and consistency of the masonry, a sonic testing of each pillar was also performed. The integration of the above NDTs provided quite complete and comprehensive understanding of the structural behavior and state of the building, reducing the amount of invasive measurements further needed.
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13

Shen, Kenneth K., and Victor A. Sowa. "Discussion of “Integrity Testing of Bored Piles Using Sonic Logging” by J. F. Kissenpfennig, Jonathan T. Motherwell and Lester J. LaFountain (August, 1984, Vol. 110, No. 8)." Journal of Geotechnical Engineering 113, no. 3 (March 1987): 267–68. http://dx.doi.org/10.1061/(asce)0733-9410(1987)113:3(267).

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14

Carpenter, Chris. "Using Shale as a Barrier Simplifies Well Abandonment." Journal of Petroleum Technology 73, no. 01 (January 1, 2021): 62–63. http://dx.doi.org/10.2118/0121-0062-jpt.

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This article, written by JPT Technology Editor Chris Carpenter, contains highlights of paper SPE 199654, “Simplifying Well Abandonments Using Shale as a Barrier,” by Eric van Oort, SPE, and Maria Juenger, The University of Texas at Austin, and Munir Aldin, SPE, Metarock Laboratories, et al., prepared for the 2020 IADC/SPE International Drilling Conference and Exhibition, Galveston, Texas, 3-5 March. The paper has not been peer reviewed. The complete paper presents the results of an investigation into the creep behavior of North Sea shales and their ability to form effective annular barriers. The large-scale laboratory results show that Lark-Horda shales will form competent low-permeability annular barriers when left uncemented, as confirmed using pressure-pulse-decay measurements. Experimental conditions were found to influence the rate of barrier formation. Higher effective stress, higher temperature, and beneficial manipulation of annular fluid chemistry all have a significant effect. Introduction An alternative to traditional plug-and-abandonment techniques presented it-self more than a decade ago, with observations that formations such as mobile salts and shales could creep into uncemented annular spaces and form competent annular barriers that could be identified on sonic and ultrasonic bond logs and verified using pressure testing. Shale particularly has the necessary characteristics that several guidelines require of a good barrier, being largely impermeable, nonshrinking, ductile, and resistant to chemicals and substances, all of which help provide long-term integrity. Shales that appeared to be particularly well-suited to beneficial annular creep behavior were characterized by low strength and high ductility, high clay content with relatively high smectite content, low levels of quartz and carbonate cementation, relatively high porosity and low compressional wave velocity, and a tendency to yield wellbore instability problems while being drilled. Mechanisms other than creep were considered for the annular blockage behavior observed, but the mounting body of evidence indicates that the predominant mechanism is indeed creep (i.e., the viscoplastic behavior of argillaceous rocks). In the laboratory and field work published to date, stimulation of shale barriers through accelerated creep by pressure and temperature manipulation has received the most attention. The authors investigate barrier activation not only by temperature and pressure activation but also by chemical activation, because it offers practical advantages and reduces risks associated with temperature and pressure activation. Temperature has a significant effect on the viscoplastic behavior of shale, but heating a long shale section (with a minimum barrier length of 50 m) through casing with an effective downhole heater presents considerable practical challenges. Pressure reduction in the annulus through reduction of the hydrostatic head in the wellbore brings with it well-control concerns, particularly when no functional annular barrier is in place. By contrast, circulating a chemical solution in place in an annular space through casing perforations with a workstring and packer arrangement is relatively straightforward and is routine when practicing the perforate, wash, and cement technique in the field.
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15

Baggio, Carlo, Valerio Sabbatini, Silvia Santini, and Claudio Sebastiani. "Comparison of different finite element model updates based on experimental onsite testing: the case study of San Giovanni in Macerata." Journal of Civil Structural Health Monitoring 11, no. 3 (April 5, 2021): 767–90. http://dx.doi.org/10.1007/s13349-021-00480-1.

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AbstractUnderstanding the behavior of historic structures that have undergone structural changes, restorations, and damage over time is still a significant challenge for structural engineers, particularly in those countries subject to high seismic risk, such as Italy. The study of built heritage for its prevention and conservation is an active research topic, due to the numerous uncertainties present in historic structures. Finite element modelling has become the most common and accessible method to study the behavior of complex masonry structures, however, the gap between numerical and experimental analysis may lead to erroneous results. Model updating techniques can reduce the discrepancy between the behavior of the numerical models and the testing results. The goal of this work is to illustrate a methodology to integrate the information derived from local, global, and geotechnical investigations into the finite element model of the masonry historical church of San Giovanni in Macerata, considering the Douglas–Reid model updating method. The PRiSMa laboratory of Roma Tre University carried out local investigations such as sonic tomography, video endoscopy and double flat jack tests, along with five ambient vibration tests that were processed through the operational modal analysis to extrapolate the dynamic properties of the building (modal frequency, modal shape vector and modal damping). The combined use of global, local and geotechnical information implemented in the methodology effectively reduced the uncertainties of the model and led the refinement and validation of the most relevant structural parameters.
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16

"Integrity testing of bored piles using sonic logging." International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts 22, no. 2 (April 1985): A61. http://dx.doi.org/10.1016/0148-9062(85)92519-7.

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