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Letteratura scientifica selezionata sul tema "STRENGTH OF SOIL"

Autore: Grafiati
Pubblicato: 11 settembre 2023

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Articoli di riviste sul tema "STRENGTH OF SOIL"

1

Hamad, Asal Mahmud, e Mahmood Gazey Jassam. "A Comparative Study for the Effect of Some Petroleum Products on the Engineering Properties of Gypseous Soils". Tikrit Journal of Engineering Sciences 29, n. 3 (15 ottobre 2022): 69. http://dx.doi.org/10.25130/tjes.29.3.7.

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Abstract (sommario):
Gypseous soils are considered problematic soils because the soil cavities happen during receiving the water or this type of soil and solving gypsum materials and contract in a soil volume. In this study, three types of gypseous soils are used; soil1, soil2, and soil3 with gypsum content (28.71%, 43.6%, and 54.88%) respectively, petroleum products (engine oil, fuel oil, and kerosene) are added to the soils with percentages (3%, 6%, 9%, and 12%) for each product. The result showed that specific gravity, liquid limit, optimum moisture content (O.M.C), and maximum dry density decreased with an increased percentage of product for all types of products. The direct shear (dry and soaked case) results show that increasing the (angle of internal friction and the soil cohesion) for soil1, soil2, and soil3 by adding engine oil and fuel oil. Still, when the soils were treated with kerosene, the angle of internal friction increased while cohesion decreased. The collapse potential for the treated soils increases with increasing gypsum content for all petroleum products. The collapse potential (CP) for (soil1) decreased by 47% when using 6% of the engine oil, 48.8% when using 9% of the fuel oil, and 55% when using 9% of the kerosene. The same percentage of the petroleum products (engine oil, fuel oil, and kerosene) decrease the collapse potential for (soil2), (47%, 46%, and 50%) respectively and decrease the collapse potential for (soil 3), (51%, 47.7%, and 52%) respectively. In the unconfined compressive test applied on (soil1) using maximum density, the results show that the soil strength increased (26% and 10%) when using 6% and engine oil and fuel oil, respectively, while the soil strength decreased by 29% when treated with 9% of kerosene.
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2

Aitken, RL, e PW Moody. "Interrelations between soil pH measurements in various electrolytes and soil solution pH in acidic soils". Soil Research 29, n. 4 (1991): 483. http://dx.doi.org/10.1071/sr9910483.

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Abstract (sommario):
Ninety soil samples (81 surface, 9 subsurface) were collected from eastern Queensland and soil pH (1:5 soi1:solution) was measured in each of deionized water (pH,), 0.01 M CaCl2, 0-002 M CaCl2 and 1 M KCl. Soil solution was extracted from each soil after incubation for 4 days at the 10 kPa matric suction moisture content, and pH (pHss) and electrical conductivity were measured. The objectives of this work were to investigate interrelationships between soil pH measurements in various electrolytes and soil solution pH in a suite of predominantly acidic soils. Although the relationships between pHw and pH measured in the other electrolytes could be described by linear regression, the fitting of quadratic equations improved the coefficients of determination, indicating the relationships were curvilinear. The majority of soils exhibited variable charge characteristics (CEC increases with soil pH) and the curvilinear trend is explained on this basis. At low pH, the difference between pH, and pH measured in an electrolyte will be small compared with the difference at higher pH values because, in general, at low pH, soils will be closer to their respective PZSE (pH at which electrolyte strength has no effect). Of the electrolytes used, pH measured in 0.002 M CaCl2 gave the closest approximation to pHs,. However, when soils with ionic strengths greater than 0.018 M were selected (predominantly cultivated surface soils), pH in 0.01 M CaCl2 gave the best approximation to pHss. For predicting pHss, the ionic strength of the electrolyte will need to be matched to that of the soils studied. For a suite of soils with a large range in soil solution ionic strength (as in this study), it is preferable to measure pHss directly.
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3

Luo, Donghui, Jialun Li, Yongxing Cao, Bo Tan, Wei Li e Hanyu Wang. "Research on the Influence of Typical Soil Parameters on Critical Breakdown Field Strength and Residual Resistivity Based on Discharge Topography". Energies 14, n. 16 (6 agosto 2021): 4810. http://dx.doi.org/10.3390/en14164810.

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Abstract (sommario):
Partial discharge of soil occurs when a lightning current enters the ground, and the strength of partial discharge is closely related to the magnitude of its critical breakdown field strength. Therefore, how to accurately obtain the variation law of the typical soil critical breakdown field strength and residual resistivity is the key to realizing the safe operation of the grounding devices and cables in the ground. This paper first selects a variety of typical soils to study the influence of various factors on the morphology of the discharge channel, and then studies the calculation methods of the soil critical breakdown field strength and residual resistivity under the introduction of different discharge channel morphologies and structures, and further discusses the reason why typical soil media factors have a small impact on the critical breakdown field. The experimental results show that under the same conditions, the critical breakdown field strengths of different soils from small to large are sand soil, loam soil and Yellow cinnamon soil. The largest ratio of residual resistivity to initial resistivity of the three soils is sand soil.
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4

Eid, Hisham T., Ruslan S. Amarasinghe, Khaled H. Rabie e Dharma Wijewickreme. "Residual shear strength of fine-grained soils and soil–solid interfaces at low effective normal stresses". Canadian Geotechnical Journal 52, n. 2 (febbraio 2015): 198–210. http://dx.doi.org/10.1139/cgj-2014-0019.

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Abstract (sommario):
A laboratory research program was undertaken to study the large-strain shear strength characteristics of fine-grained soils under low effective normal stresses (∼3–7 kPa). Soils that cover a wide range of plasticity and composition were utilized in the program. The interface shear strength of these soils against a number of solid surfaces having different roughness was also investigated at similar low effective normal stress levels. The findings contribute to advancing the knowledge of the parameters needed for the design of pipelines placed on sea beds and the stability analysis of shallow soil slopes. A Bromhead-type torsional ring-shear apparatus was modified to suit measuring soil–soil and soil–solid interface residual shear strengths at the low effective normal stresses. In consideration of increasing the accuracy of assessment and depicting the full-scale field behavior, the interface residual shear strengths were also measured using a macroscale interface direct shear device with a plan interface shear area of ∼3.0 m2. Correlations are developed to estimate the soil–soil and soil–solid interface residual shear strengths at low effective normal stresses. The correlations are compared with soil–soil and soil–solid interface drained residual shear strengths and correlations presented in the literature.
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5

Barzegar, AR, RS Murray, GJ Churchman e P. Rengasamy. "The strength of remolded soils as affected by exchangeable cations and dispersible clay". Soil Research 32, n. 2 (1994): 185. http://dx.doi.org/10.1071/sr9940185.

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Abstract (sommario):
The tensile strengths of remoulded samples of five Australian soils with differing clay type, texture and shrink-swell potential were measured as a function of exchangeable cations (Na, Ca and Mg) and exchangeable sodium percentage (ESP). Spontaneously and mechanically dispersible clays were also determined as a function of ESP. The tensile strength changed with the nature of the exchangeable cation, clay content and amounts of spontaneously and mechanically dispersible clay. In Ca-soils, the tensile strength was highly correlated with clay content and CEC. Regression analyses of data for soils containing various amounts of exchangeable sodium showed that mechanically and spontaneously dispersible clay were individually correlated with the tensile strength of remoulded soils. However, multiple regression analyses of these data indicated that spontaneously dispersible clay alone was a major predictor of the tensile strength of remoulded sodic soils. This suggests that measurement of spontaneously dispersible clay adequately accounts for the differences in tensile strengths of dry remoulded soils as influenced by ESP values. Analysis of variance of data for all the soils with varying ESP values showed that spontaneously dispersible clay was strongly correlated with clay content. Analyses of data for individual soil type showed that spontaneously dispersible clay was highly correlated with ESP. For each soil studied, increase in ESP resulted in increase of dispersible clay and hence in tensile strength. Although tensile strength increased with ESP, the rate of change of strength with ESP was different for each soil. Soil with the highest clay content gave rise to the greatest rate of change. The effect of exchangeable magnesium on tensile strength was similar to calcium. However, in two of the soils, exchangeable magnesium, in the presence of sodium, increased the strength slightly more than calcium, confirming the ionic radius effect of these elements.
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6

Misra, RK, e CW Rose. "An examination of the relationship between erodibility parameters and soil strength". Soil Research 33, n. 4 (1995): 715. http://dx.doi.org/10.1071/sr9950715.

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Abstract (sommario):
Erosion rate of soil by the impact of raindrops and overland flow of water is often considered to be affected by the shear strength of surface soil. Physically based erosion models indicate a link between defined erodibility parameters and soil strength. The objectives of this paper are to determine erodibility parameters with the process-based erosion model GUEST for a. krasnozem soil of two contrasting strengths, and to examine the influence of soil strength on erodibility parameters. Soil beds of width 1 m and length 5.8 m, with and without compaction, were exposed to simulated, constant rate rainfall. A range of slopes was used. Detachment trays of width 300 mm and downslope length 200 mm containing soils of identical strength were placed at the same slope and exposed to the same rain in order to determine the effects of rainfall-driven processes alone on erosion. Soil strength was measured with a hand vane tester and a pocket penetrometer to determine whether compaction was effective in modifying soil strength. Temporal variation in sediment concentrations (c) for the large soil beds and detachment trays was measured for each slope and soil strength. The settling velocity characteristic of soil, with and without exposure to rain, was determined with the modified bottom withdrawal tube technique. Values of c decreased with increase in soil strength. The relationship between c and slope was influenced by soil strength in a manner consistent with the theoretical expectation of the role of soil strength in controlling erosion. Rilling during erosion was absent only when the soil was compacted. The average settling velocity of the soil exposed to rain (i.e. its depositability) was significantly lower than for the same soil not subjected to rain, indicating a breakdown of soil aggregates as a result of raindrop impact. Rainfall detachability parameters (estimated with GUEST) Were lower when soil strength was high. Runoff-driven erodibility parameters, namely the specific energy of entrainment (J), increased and the approximate erodibility parameter (�) decreased with increase in soil strength. The Variation in these erodibility parameters with soil strength was consistent with the theory implemented in GUEST. Detailed analysis of the relative contribution of rainfall- and runoff-driven processes to c at varying stream powers and soil strengths indicated that, at high soil strength, uncertainty in the values of J and � is high because of the higher contribution to c of rainfall-driven rather than runoff-driven processes. The adequacy of in situ measurement of soil strength as an indicator of soil erodibility is discussed in relation to the results presented.
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7

Li, Xinming, Haoyang Zhang, Yanrui Guo, Song Yin e Kebin Ren. "Effect of Dry-Wet Cycles on Strength Properties and Microstructure of Lime-Metakaolin-Modified Soil". Advances in Civil Engineering 2022 (29 settembre 2022): 1–14. http://dx.doi.org/10.1155/2022/1296288.

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Abstract (sommario):
To explore the feasibility of replacing natural hydraulic lime (NHL) with lime-metakaolin (L-MK) in the restoration of soil sites, the samples of L-MK-modified silty sand (hereinafter L-MK-modified soil) underwent 0, 5, 10, and 15 dry-wet cycles and were then tested for mass loss, unconfined compressive strength, and splitting tensile strength. Some samples were tested using XRD, TG and SEM microscopic tests to study the strength mechanism for L-MK- and NHL-modified soil. The results showed that the mass loss ratios of the L-MK- and NHL-modified soils after 15 dry-wet cycles were within 2%. The compressive and tensile strengths of the L-MK-modified soil decreased with more dry-wet cycles, but the tensile strength decreased sharply initially and then to be stable after five dry-wet cycles. The attenuation characteristics were different obviously for the failure mode of compressive and tensile strength and the unevenness of the specimen caused by dry-wet cycles. The compressive and tensile strengths of L-MK-modified soil were significantly higher than those of NHL-modified soil after the same dry-wet cycle, and the decreased range of compressive and tensile strength was smaller than that of NHL-modified soil. The strength formation and attenuation characteristics of L-MK-modified soil are closely related to the influence of dry-wet cycles on the hydration products (e.g., CSH and C4AH13) generated by hydration reaction. The mix proportion of 6% L + 4% MK can effectively replace 8% and 10% NHL to protect soil sites.
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8

Dolling, PJ, e GSP Ritchie. "Estimates of soil solution ionic strength and the determination of pH in West Australian soils". Soil Research 23, n. 2 (1985): 309. http://dx.doi.org/10.1071/sr9850309.

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Abstract (sommario):
The average ionic strength of 20 West Australian soils was found to be 0.0048. The effects of three electrolytes (deionized water, CaCl2 and KNO3), three ionic strengths (0.03, 0.005 and soil ionic strength at field capacity, Is) and two soil liquid ratios (1:5 and 1:10) on the pH of 15 soils were investigated. pH measurements in solutions of ionic strength 0.005 differed the least from measurements made at Is. The differences that occurred in comparisons with distilled water or CaCl2 of ionic strength 0.03 (0.01 M) were much greater (20.4 pH units). An extractant with an ionic strength of 0.005 may provide a more realistic measure of pH in the field than distilled water or 0.01 M CaCl2 for West Australian soils.
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9

Fredlund, D. G., Anqing Xing, M. D. Fredlund e S. L. Barbour. "The relationship of the unsaturated soil shear strength to the soil-water characteristic curve". Canadian Geotechnical Journal 33, n. 3 (2 luglio 1996): 440–48. http://dx.doi.org/10.1139/t96-065.

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Abstract (sommario):
The measurement of soil parameters, such as the permeability and shear strength functions, used to describe unsaturate soil behaviour can be expensive, difficult, and often impractical to obtain. This paper proposes a model for predicting the shear strength (versus matric suction) function of unsaturated soils. The prediction model uses the soil-water characteristic curve and the shear strength parameters of the saturated soil (i.e., effective cohesion and effective angle of internal friction). Once a reasonable estimate of the soil-water characteristic curve is obtained, satisfactory predictions of the shear strength function can be made for the unsaturated soil. Closed-form solutions for the shear strength function of unsaturated soils are obtained for cases where a simple soil-water characteristic equation is used in the prediction model. Key words: soil suction, soil-water characteristic curve, shear strength function, unsaturated soil.
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10

Zhang, Xiao Ming, Qian Jin Liu e Xing Xiu Yu. "Differences of Shear Strength between Undisturbed and Remolded Soils of Lands for Agriculture and Forestry in Menglianggu Watershed of Linyi City". Advanced Materials Research 599 (novembre 2012): 815–19. http://dx.doi.org/10.4028/www.scientific.net/amr.599.815.

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Abstract (sommario):
To find the effects of pedoturbation on soil erosion of lands for agriculture and forestry in Menglianggu watershed of Linyi city from soil mechanics, shear strengths of 3 typical land uses (6 different soils) which are undisturbed and remolded respectively were measured by direct shear apparatus. Effects of particle size and binding materials on shear strength were analyzed by comparing shear properties of undisturbed and remolded soils with the same dry density, water content and vertical loads. The results show that all the angle of internal friction ( ) and most of soil cohesion ( ) of undisturbed soils are bigger than that of remolded soils; The final shearing stress also comply with the law above; The main factors affecting shear strength are soil particle size and binding materials.
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Più fonti

Tesi sul tema "STRENGTH OF SOIL"

1

Lacoul, Sriranjan. "Consolidated-drained shear-strength of unsaturated soil". Thesis, McGill University, 1986. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=66044.

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2

Barzegar, Abdolrahman. "Structural stability and mechanical strength of salt-affected soils". Title page, contents and abstract only, 1995. http://web4.library.adelaide.edu.au/theses/09PH/09phb296.pdf.

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Abstract (sommario):
Copies of author's previously published articles in pocket inside back cover. Bibliography: leaves 147-160. This thesis outlines the factors affecting soil strength and structural stability and their interrelationship in salt-affected soils. The objectives of this study are to investigate the influence of clay particles on soil densification and mellowing, the mellowing of compacted soils and soil aggregates as influenced by solution composition, the disaggregation of soils subjected to different sodicities and salinities and its relationship to soil strength and dispersible clay and the effect of organic matter and clay type on aggregation of salt-affected soils.
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3

Rouaiguia, Ammar. "Strength of soil-structure interfaces". Thesis, Loughborough University, 1990. https://dspace.lboro.ac.uk/2134/26883.

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Abstract (sommario):
This research work deals with the development of the shearbox apparatus by introducing a micro-computer to automatically collect all the results, and to apply normal and shear stresses. A continuous statement of time, channel number, and transducer input and output is produced for each test, the sequences of applied rates of displacement and normal stresses for which were programmed.
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4

Chung, Sun-Ok. "On-the-go soil strength profile sensor /". free to MU campus, to others for purchase, 2004. http://wwwlib.umi.com/cr/mo/fullcit?p3137684.

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5

Cho, Gye Chun. "Unsaturated soil stiffness and post-liquefaction shear strength". Diss., Georgia Institute of Technology, 2001. http://hdl.handle.net/1853/21010.

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6

Wende, Jon T. "Predicting soil strength with remote sensing data". Thesis, Monterey, California. Naval Postgraduate School, 2010. http://hdl.handle.net/10945/5174.

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Approved for public release; distribution is unlimited
Predicting soil strength from hyperspecral imagery enables amphibious planners to determine trafficability in the littorals. Trafficability maps can then be generated and used during the intelligence preparation of the battlespace allowing amphibious planners to select a suitable landing zone. In February and March 2010, the Naval Research Laboratory sponsored a multi-sensor remote sensing and field calibration and field validation campaign (CNMI'10). The team traveled to the islands of Pagan, Tinian, and Guam located in the Marianas archipelago. Airborne hyperspectral imagery along with ground truth data was collected from shallow water lagoons, beachfronts, vegetation, and anomalies such as World War II relics. In this thesis, beachfront hyperspectral data obtained on site was used as a reference library for evaluation against airborne hyperspectral data and ground truth data in order to determine soil strength for creating trafficability maps. Evaluation of the airborne hyperspectral images was accomplished by comparing the reference library spectra to the airborne images. The spectral angle between the reference library and airborne images was calculated producing the trafficability maps amphibious planners can use during the intelligence preparation of the battlespace.
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7

Young, Iain McEwing. "Soil strength and hard-setting behaviour of some structurally unstable British soils". Thesis, University of Aberdeen, 1987. http://digitool.abdn.ac.uk/R?func=search-advanced-go&find_code1=WSN&request1=AAIU010498.

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Abstract (sommario):
A study was made of the physical properties of a number of structurally sensitive soils some of which exhibited behaviour characteristic of hard-setting soils (soils which when wet slump and set hard, on drying presenting problems in terms of ease of cultivations and root growth). Work concentrated on an examination of soils of the Wick series at two sites at the Institute of Horticultural Research, Wellesbourne, where there is a documented history of consistent differences in crop yields between sites. The worse site (Big Ground) had been intensively managed for considerably longer than the better one (Plum Orchard). Dry bulk density measurements over the growing season suggest that slumping occurred on both sites. Big Ground had the greatest bulk density (typically over 1.65 g/cm3). Field and laboratory penetrometer measurements have shown that under relatively dry (an 8% moisture content) conditions roots would experience severe mechanical impedence on both sites. Root counts at final harvest showed that conditions for rooting were considerably worse in Big Ground where all roots were confined to the top 30 cm. Root growth was better in Plum Orchard and was concentrated in between peds, which did not exist at Big Ground. Laboratory strength (unconfined compressive and indirect tensile) and friability measurements on equilibrated samples also showed up differences between the two sites; the greates differences existing between 1 and 10 bar tension with Big Ground samples exhibiting the greatest strengths and least friabilities. On both sites strengths were observed to increase sharply for a comparatively small decrease in moisture content. Implications of these results are discussed with reference to ease of cultivation and rootability. Another light texured soil from Elgin, known for its tendency to erode, was chosen as a contrast to the Wellesbourne sites. Soil at this site was shown to have much less of a tendency to slump and to create problems for root growth, compared to the Wellesbourne sites. The Elgin soil was also considerably weaker, and the sharp increase in strength observed at Wellesbourne was not observed in Elgin. A new test for water suspendable solids, performed on the Wellesbourne and Elgin soils as well as on 5 other soils known for their structural instability showed that, with the exception of the Elgin soil, a large amount of silt sized material could be brought into suspension with little soild disturbance. An explanation for hard-setting behaviour which is based on those results is suggested.
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Elbanna, E. B. E. "Agricultural machinery selection : Soil strength and operational timeliness". Thesis, University of Edinburgh, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.371883.

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9

Sinclair, John. "Crusting, soil strength and seedling emergence in Botswana". Thesis, University of Aberdeen, 1985. http://digitool.abdn.ac.uk/R?func=search-advanced-go&find_code1=WSN&request1=AAIU363198.

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Abstract (sommario):
This thesis gives the results of an investigation of the strengths and particularly the crust forming potential of arable soils from Botswana and the relationship to seedling emergence of sorghum, the most important crop in Botswana and one that because of its small seed weight (about 2 0 mg) can fail to emerge through a hard soil crust. A review of the literature suggested that the soil factors which had to be considered were dispersibility of clay and factors which affect this, and the bulk density of the soils. Soils which are found in many tropical and sub-tropical regions, with low organic matter and inactive clays can set hard after a simple wetting and drying cycle. In these soils, the strength is very strongly dependent on the water content, showing a hyperbolic or exponential relationship-, and the strengths when dry may be very greatly increased by remoulding the wet soil. The crust strength required to prevent seedling emergence varies with the size of the seedling and for cotton (seed weight about 80 mg), 1-3 MPa penetration resistance measured with a penetrometer is sufficient to prevent emergence. Seedlings exert a total force proportional to their number. In the experimental programme, seedlings' forces were measured, seedling emergence observed in a field experiment under crusting conditions, and the strength characteristics of a group of soils, representative of arable soils in Botswana, studied. A sorghum seedling was found to exert a maximum force of about 1 N or dividing by the area of the plumule, a pressure of about 0,5 MPa. The field experiment showed that much better emergence was obtained from planting 15 seeds together than from planting 4 seeds together when a crust formed after planting. A study of 32 soils, most of them sand to sandy loam in texture but with a few clays and hydroirorphic soils, from arable areas in Botswana showed the sandy to sandy loam soils to have high bulk densities ( 1,45-1 ,75 Mg/m3) and extremely low organic carbon contents (0,12-0,85 g/100g). The bulk densities of all the soils were inversely related to the organic carbon content and this was itself related to the clay content of the soils. The bulk densities of the sands were dependent on the grading of the sand fraction. Many of the soils were sensitive to remoulding in the Emerson test and the sands to loany sands had 0,4-1,0 g/100 g water dispersible clay. Measurements of tensile strength on air-dry samples showed that all the soils, except for one sand, set hard after a wetting and drying cycle, giving for vacuum wet samples indirect tensile strengths 1,0-14,4 kPa. For the sands to sandy loams this strength was related to the water dispersible clay content. Samples wet at atmospheric pressure were weaker than the vacuum wet samples, the reduction in strength was related to the air porosity of the non-vacuum wet soils prior to drying. Remoulding the soils prior to drying them increased the strength by a factor of up to 50 times, giving strengths from 4 kPa to 600 kPa. The strength after remoulding was dependent on the Emerson index. Compacting the soils increased their strength greatly and to an extent that agreed with the hypothesis that the strength obtained was proportional to the area of contact between the particles. Experiments on penetration resistance at a range of water contents were performed on a few soils. A hyperbolic relationship between water content and penetration resistance of the surface soil was found for sand to sandy loam soils, with the maximum resistance of dry soils above 2 MPa. The penetration resistance of the sandy loam soil was Increased three times by disturbing it when wet. Sprinkler wetting the sieved soils was not found to affect the penetration resistance by a large amount compared and other methods of welting. Penetration resistance was measured on air-dry samples of most of the main group of soils following varying degrees of wetting with a rainfall simulator. The clays and hydromorphic soils gave very low values of penetration resistance under these conditions, showing that at organic carbon contents of about 1% and clay contents from 20 to 30%, the decreased bulk density and tendency to form aggregates' on drying overcame the tendency to set hard. The mean values for the sands to sandy loams were from 1 to 6 MPa so all these soils could offer significant resistance to a sorghum seedling. The penetration resistance of the sands and loam/ sands depended on their bulk densities and water dispersible clay contents, while the penetration resistance of the sandy loams depended only on the water dispersible clay content.
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Keller, Thomas. "Soil compaction and soil tillage - studies in agricultural soil mechanics /". Uppsala : Dept. of Soil Sciences, Swedish Univ. of Agricultural Sciences, 2004. http://epsilon.slu.se/a489.pdf.

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Più fonti

Libri sul tema "STRENGTH OF SOIL"

1

Leʹsniewska, Danuta. Analysis of shear band pattern formation in soil. Gdaʹnsk: Instytut Budownictwa Wodnego PAN, 2000.

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2

Baumgartl, Thomas. Spannungsverteilung in unterschiedlich texturierten Böden und ihre Bedeutung für die Bodenstabilität. Kiel: Vertrieb, Institut für Pflanzenernährung und Bodenkunde der Christian-Albrechts-Universität zu Kiel, 1991.

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3

Kalaev, A. I. Nesushchai͡a︡ sposobnostʹ osnovaniĭ sooruzheniĭ. Leningrad: Stroĭizdat, Leningradskoe otd-nie, 1990.

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4

Sobolevskiĭ, D. I͡U. Prochnostʹ i nesushchai͡a sposobnostʹ dilatirui͡ushchego grunta. Minsk: "Navuka i tėkhnika", 1994.

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5

Vance, S. L. Relationship of soil strength and rowcrop yields on reconstructed surface mine soils. S.l: s.n, 1992.

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6

Lade, P. Triaxial testing of soils. Hoboken: John Wiley & Sons Inc., 2016.

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7

J, Jardine R., e Institution of Civil Engineers (Great Britain), a cura di. Pre-failure deformation behaviour of geomaterials. London: Thomas Telford, 1998.

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8

Fundamentals of soil mechanics for sedimentary and residual soils. Hoboken, N.J: Wiley, 2010.

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9

Elsoufiev, Serguey A. Strength analysis in geomechanics. 2a ed. Dordrecht: Springer, 2010.

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10

Geological Survey (U.S.), a cura di. PETAL3: PEnetration Testing and Liquefaction, an interactive computer program. [Denver, Colo.?: U.S. Geological Survey, 1988.

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Capitoli di libri sul tema "STRENGTH OF SOIL"

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Craig, R. F. "Shear strength". In Soil Mechanics, 23–28. Boston, MA: Springer US, 1992. http://dx.doi.org/10.1007/978-1-4899-3772-8_4.

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Barnes, G. E. "Shear Strength". In Soil Mechanics, 130–67. London: Macmillan Education UK, 1995. http://dx.doi.org/10.1007/978-1-349-13258-4_7.

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Barnes, Graham. "Shear strength". In Soil Mechanics, 208–59. London: Macmillan Education UK, 2017. http://dx.doi.org/10.1057/978-1-137-51221-5_7.

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Barnes, Graham. "Shear strength". In Soil Mechanics, 190–242. London: Macmillan Education UK, 2010. http://dx.doi.org/10.1007/978-0-230-36677-0_7.

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Yu, Mao-Hong. "Strength Characteristics of Soil". In Soil Mechanics, 59–78. Singapore: Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-99-2781-4_4.

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Yu, Mao-Hong. "Yu Unified Strength Theory". In Soil Mechanics, 79–104. Singapore: Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-99-2781-4_5.

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Verruijt, Arnold. "Shear Strength". In An Introduction to Soil Mechanics, 163–71. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-61185-3_20.

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Das, Braja M. "Shear strength of soils". In Advanced Soil Mechanics, 469–584. 5th edition. | Boca Raton : Taylor & Francis, a CRC title, part of the Taylor & Francis imprint, a member of the Taylor & Francis Group, the academic division of T&F Informa, plc, [2019]: CRC Press, 2019. http://dx.doi.org/10.1201/9781351215183-9.

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Jackson, Neil, e Ravindra K. Dhir. "Shear Strength of Soil". In Civil Engineering Materials, 415–29. London: Macmillan Education UK, 1996. http://dx.doi.org/10.1007/978-1-349-13729-9_27.

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Gratchev, Ivan, Dong-Sheng Jeng e Erwin Oh. "Shear strength of soil". In Soil Mechanics Through Project-Based Learning, 135–58. London ; Boca Raton : CRC Press/Balkema is an imprint of the Taylor & Francis Group, an Informa Business, [2019]: CRC Press, 2018. http://dx.doi.org/10.1201/9780429507786-11.

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Atti di convegni sul tema "STRENGTH OF SOIL"

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"Soil-Cement Slurry Pipe Embedment". In SP-150: Controlled Low-Strength Materials. American Concrete Institute, 1994. http://dx.doi.org/10.14359/4610.

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Cocjin, Michael, David White e Susan Gourvenec. "Continuous Characterisation of Near-Surface Soil Strength". In ASME 2014 33rd International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/omae2014-23469.

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Abstract (sommario):
A sound understanding of near-surface soil strength is essential for the accurate prediction of the response of structures laid on or shallowly embedded in the seabed. However, characterisation of the uppermost region of the seabed, which is typically very soft and at a low-stress state, is extremely challenging. This paper demonstrates a novel technique for characterising the in situ undrained shear strength of near-surface soils using a newly-developed pile penetrometer. The pile penetrometer is vertically embedded into the near-surface soil and is driven laterally. A simple calculation of the resistance mobilised over the embedded depth of the pile penetrometer is presented along with its application to the continuous measurement of spatial variation in near-surface strength in virgin and disturbed regions of soil.
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Frankenstein, Susan, Brian Skahill e Christa Peters-Lidard. "The Effect of Soil State Predictions on Soil Strength". In 13th International Conference on Cold Regions Engineering. Reston, VA: American Society of Civil Engineers, 2006. http://dx.doi.org/10.1061/40836(210)42.

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Peralta, Proserpine, Kalaiarasi Vembu, Jack Dow Fraser, Sudarshan Adhikari, Aurelian Trandafir, Xiaoyan Long e Deanne Hargrave. "Cyclic Strength of Soils at Atlantic Shores Offshore Wind Farm". In Offshore Technology Conference. OTC, 2023. http://dx.doi.org/10.4043/32389-ms.

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Abstract The cyclic soil behavior of North Sea clays and silica sands have been well-documented (Andersen 2004, 2009, etc), and have been used globally to develop soil models and design foundations for structures subjected to cyclic wave loading. The recent development of offshore wind farms within the Atlantic Offshore Continental Shelf (OCS) in the U.S. have prompted the large-scale design of fixed-bottom foundations of offshore wind structures, which are designed to be highly dynamic. In contrast to North Sea soils, very few data have been published regarding the strength behavior of typical Atlantic OCS soils. This has prompted the need to review industry-accepted soil models and cyclic design procedures based on empirical data and model testing from the North Sea and whether these may be applicable to Atlantic OCS soils. This paper presents cyclic soil data from a series of triaxial and direct simple shear tests on clay, silt, and sand samples from the Atlantic Shores Offshore Wind Lease Area in offshore New Jersey. A comparison of the soil behavior is made to published North Sea soils data and recommendations are provided on soil parameters for application to foundation design procedures for offshore wind structures within the Atlantic OCS.
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Holderby, Eric, e Amy B. Cerato. "Field Verification of Stabilized Soil Strength". In Geo-Frontiers Congress 2011. Reston, VA: American Society of Civil Engineers, 2011. http://dx.doi.org/10.1061/41165(397)251.

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Landsburg, Sandra L., Karen R. Cannon e Nancy M. Finlayson. "Effects of Pipeline Construction on Soil Compaction". In 1996 1st International Pipeline Conference. American Society of Mechanical Engineers, 1996. http://dx.doi.org/10.1115/ipc1996-1946.

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Abstract (sommario):
A study was initiated in 1988 to evaluate the effects of pipeline construction on soil compaction in the province of Alberta. Cone penetration resistance (soil strength) of soils was monitored to a depth of 31.5 cm at 14 study areas. Soil strength measurements were taken from right-of-way locations as well as from an adjacent undisturbed control. Soil strength information from the 14 study areas suggests that pipeline construction procedures can cause changes in soil strength on pipeline rights-of-way. Decreases in soil strength on the RoW compared to adjacent controls are more common than increases. These differences in soil strength appear to be short lived. In the majority of cases most differences, both increases and decreases, had disappeared one year after construction.
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Wilson, Brian, e Jim Coull. "Determining the Tensile Strength of Soil-Cement". In Grouting 2017. Reston, VA: American Society of Civil Engineers, 2017. http://dx.doi.org/10.1061/9780784480809.029.

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Haralambos, Saroglou I. "Compressive Strength of Soil Improved with Cement". In International Foundation Congress and Equipment Expo 2009. Reston, VA: American Society of Civil Engineers, 2009. http://dx.doi.org/10.1061/41023(337)37.

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Tiwari, B., B. Ajmera e G. Kaya. "Shear Strength Reduction at Soil Structure Interface". In GeoFlorida 2010. Reston, VA: American Society of Civil Engineers, 2010. http://dx.doi.org/10.1061/41095(365)177.

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Khoury, Charbel N., Gerald A. Miller e Kianoosh Hatami. "Shear Strength of Unsaturated Soil-Geotextile Interfaces". In GeoFlorida 2010. Reston, VA: American Society of Civil Engineers, 2010. http://dx.doi.org/10.1061/41095(365)28.

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Rapporti di organizzazioni sul tema "STRENGTH OF SOIL"

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Shoop, Sally, Samuel Beal, Wendy Wieder e Eric McDonald. Soil strength analysis of Sonoran Desert landforms. Engineer Research and Development Center (U.S.), settembre 2018. http://dx.doi.org/10.21079/11681/29266.

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Green, Brian H. Development of Soil-Based Controlled Low-Strength Materials. Fort Belvoir, VA: Defense Technical Information Center, ottobre 1999. http://dx.doi.org/10.21236/ada374305.

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Sopher, Ariana M., Sally A. Shoop, Jesse Jr M. Stanley e Brian T. Tracy. Image Analysis and Classification Based on Soil Strength. Fort Belvoir, VA: Defense Technical Information Center, agosto 2016. http://dx.doi.org/10.21236/ad1014532.

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Shivakumar, Pranavkumar, Kanika Gupta, Antonio Bobet, Boonam Shin e Peter J. Becker. Estimating Strength from Stiffness for Chemically Treated Soils. Purdue University, 2022. http://dx.doi.org/10.5703/1288284317383.

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Abstract (sommario):
The central theme of this study is to identify strength-stiffness correlations for chemically treated subgrade soils in Indiana. This was done by conducting Unconfined Compression (UC) Tests and Resilient Modulus Tests for soils collected at three different sites—US-31, SR-37, and I-65. At each site, soil samples were obtained from 11 locations at 30 ft spacing. The soils were treated in the laboratory with cement, using the same proportions used for construction, and cured for 7 and 28 days before testing. Results from the UC tests were compared with the resilient modulus results that were available. No direct correlation was found between resilient modulus and UCS parameters for the soils investigated in this study. A brief statistical analysis of the results was conducted, and a simple linear regression model involving the soil characteristics (plasticity index, optimum moisture content and maximum dry density) along with UCS and resilient modulus parameters was proposed.
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Fish, Anatoly M. Creep and Strength of Frozen Soil Under Triaxial Compression. Fort Belvoir, VA: Defense Technical Information Center, dicembre 1994. http://dx.doi.org/10.21236/ada302885.

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Wieder, Wendy, e Sally Shoop. Vegetation impact on soil strength : a state of the knowledge review. Cold Regions Research and Engineering Laboratory (U.S.), giugno 2017. http://dx.doi.org/10.21079/11681/22632.

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Semen, Peter M. A Generalized Approach to Soil Strength Prediction With Machine Learning Methods. Fort Belvoir, VA: Defense Technical Information Center, luglio 2006. http://dx.doi.org/10.21236/ada464726.

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Delegard, Calvin H., Andrew J. Schmidt e Jeffrey W. Chenault. Strength Measurements of Archive K Basin Sludge Using a Soil Penetrometer. Office of Scientific and Technical Information (OSTI), dicembre 2011. http://dx.doi.org/10.2172/1034993.

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Germaine, John T. Characterization of the Shear Strength of Unsaturated Soils and the Role of Soil Moisture Characteristic Curves. Fort Belvoir, VA: Defense Technical Information Center, gennaio 2010. http://dx.doi.org/10.21236/ada517574.

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Hodgdon, Taylor, e Sally Shoop. Preliminary assessment of landform soil strength on glaciated terrain in New Hampshire. Engineer Research and Development Center (U.S.), aprile 2020. http://dx.doi.org/10.21079/11681/36373.

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