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Showing 1 to 20 of 42 for “"Cohesive soils"”.
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Behaviour of cohesive soils under uplift forces
Summary available: p.[1]
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Seismic Stability of Slopes in Sensitive Cohesive Soils
The use of the field vane shear test for measuring the undrained peak and residual shear strength was also reviewed. A correction factor for use of the vane shear strengths in seismic stability evaluations was proposed. The validity of the proposed correction factor was verified using the Fourth …
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Rational interpretation of in-situ tests in cohesive soils
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Civil Engineering, 1992.
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Stiffness characterization of mechanically-compressed cohesive soils using wave propagation
Wave propagation through soils is a non-destructive method used to characterize soil stiffness properties and is the basis for geophysical interpretations. Due to the difficulty of measuring shear waves through soft cohesive soils with ultrasonic transducers, bender elements are typically used, …
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Effects of Temperature on Residual Shear Strength of Cohesive Soils
… of temperature on residual shear strength of soils are not well understood. Previous studies on temperature effects on residual shear strength show some contradictory findings that might be attributed to the sample's mineralogical composition and the testing procedure. This thesis aims to …
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Factors affecting the initial stiffness and stiffness degradation of cohesive soils
… the pre-failure stress-strain behavior of cohesive soils through an ex.tensive testing program conducted on Resedimented Boston Blue Clay (RBBC). The uniformity and reproducibility in the behavior of this soil permitted a detailed study of the role of the following factors on both initial …
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The Influence of Stress History on Certain Properties of Remolded Cohesive Soils
Made available in DSpace on 2014-12-08T23:56:04Z (GMT). No. of bitstreams: 1 6408359.pdf: 8739425 bytes, checksum: 34efcacd4c9e396187b7de7646e958ae (MD5) Previous issue date: 1964
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Numerical simulation and field verification of inclined piezocone penetration test in cohesive soils
… penetration test in normally consolidated cohesive soils. The piezocone penetration is numerically simulated using the commercial finite element code ABAQUS. The saturated clay is modeled as a two-phase material and the effective stress principle is used to describe its behavior. A …
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Sedimentation and Consolidation of cohesive and non-cohesive soils formed under turbulent flows
… and erosion of mixed soil material (cohesive and non-cohesive). Soil beds formed by sedimentation process of loose particles will be either show a segregated or homogeneous in structure, depending on the depositional environment. These sediments initially undergo self-weight …
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The study of shear and longitudinal velocity measurements of sands and cohesive soils
… for the measurement of stiffness parameters of soils, with an emphasis on the use of bender element technology in obtaining the shear modulus. The experimental program consisted two primary stages. The beginning part of the experimentation was concerned with evaluating the behavior of bender …
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Laboratory Investigations of the Mechanisms of Groundwater Seepage Erosion and Piping in Cohesive Soils
… a constant-head soil box packed with sandy loam soils at prescribed bulk densities (1.30-1.70 Mg m-3) and an outflow face at 90. Bulk density controlled the mechanism of seepage erosion/failure. For both soils, tension failures occurred at densities less than 1.60 Mg m-3 and undercutting was …
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Time dependent behaviour of stress and strain in frozen cohesive soils under lateral pressure.
Source: Dissertation Abstracts International, Volume: 62-13, Section: A. Thesis (Ph.D.)--University of Windsor (Canada), 1975.
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Enhanced Anisotropic Bounding Surface Model: Implementation and Simulation of Excavation in Soft Cohesive Soils
… simulate the mechanical behavior of cohesive soils, in non-linear finite element method associated with the coupling analysis for simulating deep excavation induced ground deformations. The first phase of this research illustrates efforts in integrating the enhanced anisotropic …
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Behavior of cohesive soils and their drained, undrained, and erosional strengths at ultra-low stresses
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 1995.
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Determination of the undrained shear strength of very soft cohesive soils by a new fall cone apparatus
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Civil Engineering, 1991.
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Evaluation of the Jet Test Method for determining the erosional properties of Cohesive Soils; A Numerical Approach
… highly variable between sites, especially for cohesive soils. The submerged jet test device is an in situ method of determining the critical shear stress and soil erodibility of cohesive soils. A constant velocity jet, applied perpendicular to the soil surface, creates a scour hole which is …
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Temporal and Thermal Effects on Fluvial Erosion of Cohesive Streambank Soils
… many decades of research one the erosion of cohesive soils by flowing water (fluvial erosion), this significant aspect of environmental sustainability and engineering is still poorly understood. While past studies have given invaluable insight into fluvial erosion, this process is still …
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Multi-Scale Thermo-Hydro-Mechanical Behavior of Saturated Earth Materials
… applications, such as geothermal piles, subject soils to temperature changes. Recorded temperature variations around thermo-active infrastructure and within the active layer of the permafrost reveal the cyclic and transient nature of these temperature changes. Previous studies on the …
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The use of CPT for calculating axial capacity of drilled shafts
… consists of 48 load tests in cohesionless soils, 16 load tests in cohesive soils, and 31 load tests in mixed soils. Five cone methods are evaluated: Schmertmann method, modified Schmertmann method, LPC method, Meyerhof method, and Gwizdala method. The Reese and O'Neill method is also …
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