Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 50 for “"Triaxial compression"”.
-
Geosynthetic Reinforced Soil: Numerical and Mathematical Analysis of Laboratory Triaxial Compression Tests
… from the published literature of GRS under triaxial compression in consolidated-drained conditions. A three-dimensional numerical model was developed using FLAC3D. An existing constitutive model for the soil component was modified to incorporate confining pressure dependency of friction …
-
Experimental study of shear behaviour of high density polyethylene reinforced sand under triaxial compression
… capacity. In consideration of this, a series of triaxial tests were undertaken to investigate the reinforcing effect of High-Density Polyethylene (HDPE) plastic material in Cape Flats sand, predominant in the Western Cape region of South Africa. Plastic strips of various lengths were randomly …
-
An experimental study on time-dependent behaviour of reconstituted clayey soils in 1D and triaxial compression
… experimental program consists of oedometer and triaxial compression tests on compacted lightly overconsolidated natural soils (high plastic Regina clay and low plastic Calgary till) as well as on artificial soil mixtures made by mixing pure kaolinite or bentonite with crushed Opal, silt or …
-
Rapid Drawdown Analysis using the Finite Element Method
… results of isotropically consolidated undrained triaxial compression (ICU-TC) tests. The field strengths appropriate for use with this rapid drawdown method were found to be on average 70% of the strength measured in ICU-TC tests based on back analysis of rapid drawdown failures. For rapid …
-
Neural Network-Based Constitutive Modeling of Granular Material
… NN material models using the results of drained triaxial compression tests with end friction.
-
The influence of effective consolidation stress on the normalized extension strength properties of resedimented Boston blue clay
… variation of undrained shear parameters during triaxial compression. Undrained triaxial compression tests on RBBC (Resedimented Boston Blue Clay) have shown that the soil stiffness and strength is dependant on the vertical consolidation effective stress and that the strength behaviour does not …
-
Uniaxial and triaxial behavior of high strength concrete with and without steel fibers
… research program on the true uniaxial and triaxial compression behavior for both high strength concrete (HSC) and steel fiber reinforced high strength concrete (SFHSC). The experimental study mainly focuses on the octahedral shear stress strain relationship of those two types of concrete, …
-
The mechanical behavior of heavily overconsolidated resedimented Boston Blue Clay
… of overconsolidation. A series of undrained triaxial compression shear tests have been performed on specimens that were Ko-consolidated and swelled to overconsolidation ratios (OCR) ranging from 5 to 62 on RBBC, as well as on Intact Presumpscot Maine Clay. Specimens were consolidated to …
-
Experiments on powder metals
… A systematic experimental program consisting of triaxial compression, torsion ring shear, uniaxial strain compression, and simple compression test systems has been conducted to investigate the room temperature deformation response of powders ranging from a relative density of n = 0.4 - 0.9. A …
-
Shear and consolidation behavior of slurry-deposited, desiccated tailings and compacted filtered tailings
… sheared undrained. Consolidated undrained (CU) triaxial compression tests were conducted on 64-mm-diameter specimens that followed two different procedures. Slurry-deposited tailings were desiccated to a target void ratio and water content, resaturated, and tested in isotropic, consolidated, …
-
Mechanical characterization of jammable granular systems
… procedure similar to an unconsolidated-undrained triaxial compression test for soils. Coffee was found to have the highest strength to weight ratio. Literature predictions of the trend between applied pressure and effective Young' modulus was also investigated.
-
Characterization of a reconstituted low plasticity silt
… and Isotropic and Ko-consolidated undrained triaxial compression (CIUC and CKoUC) tests to define the engineering properties of the material. The experimental investigation finds that undercompaction is the best reconstitution technique for this material and it is almost impossible to test …
-
Interplay between mineral reaction and deformation via structural defects
… single crystals. Deformation was achieved by triaxial compression and by torsion. Triaxial compression up to 38 MPa axial stress at a fixed time showed no significant influence of stress and strain on dolomite formation. Time series conducted at a fixed stress yield no change in growth rates …
-
Some applications of Cam-clay in numerical analysis
… was conducted to model undrained and drained triaxial compression tests to investigate the relative importance of the critical state soil parameters and streis history on the calculated soil behaviour. The values of these parameters covered the range of most commonly occurring natural soils. …
-
Physical mechanisms controlling the pre-failure stress-strain behavior of frozen sand
… behavior of frozen sands are investigated in triaxial compression. The pre-failure, or small strain behavior (Ea<l%), is represented by the initial stiffness (Young's modulus) and the upper yield stress, a very distinctive yield point representing the onset of large unrecoverable plastic …
-
Development of a New Ring Shear Apparatus for Investigating the Critical State of Sands
… Illinois. Undrained/constant volume and drained triaxial compression and ring shear tests (sheared to about 30 m of shear displacement) were performed on two clean sands and one silty sand. Shear displacements localized when the peak friction angle was mobilized and subsequent shear displacements …
-
Għadira sands as compared to normally consolidated deposits at Marsa (Ta’ Ċeppuna) : using static triaxial tests
… are being presented. A series of nine undrained triaxial compression tests were performed on these soils, at three different confining pressures, ranging from 55 to 1200kPa for clean sands, and 200 to 800kPa for the alluvial deposits. The behaviour of clean sands was observed to follow the …
-
Drained shear strength of stiff clays for slope stability analyses
… The modified ring shear, direct shear, and triaxial compression apparatuses were used to investigate the fully softened shear strength using normally consolidated, remolded specimens. The natural soils used in the residual and fully softened research have a range of liquid limit of 24 to …
-
Geotechnical characterization of coal refuse for use as a backfill material
… test, falling-head permeability test, and triaxial compression test. Based on the geotechnical properties of the refuse which was sampled, it was determined to be inadequate as a backfill material.
Page 1 of 3