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.
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Showing 1 to 20 of 37 for “"Triaxial Testing"”.
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The development of a periodic loading apparatus for triaxial testing
… development of a periodic loading apparatus for testing soil specimens under triaxial loading conditions. To attain this objective an intensive survey of the literature has been conducted in order to evaluate the characteristics of similar apparatus developed in the past. In the light of the …
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Stress-strain-time phenomena in sands under triaxial testing conditions
Thesis: Sc. D., Massachusetts Institute of Technology, Department of Civil and Sanitary Engineering, 1954
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Densification and cyclic triaxial testing of Leighton-Buzzard 120/200 sand
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Civil Engineering, 1982.
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Development of an Internal Camera-Based Volume Determination System for Triaxial Testing
… camera instrumentation located within the triaxial testing cell was developed and validated. By placing the instrumentation inside of the cell, instead of the instrumentation being located outside of the cell, the technique eliminated cumbersome corrections required to account for optical …
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Liquefaction Susceptibility of Uncemented Calcareous Sands From Puerto Rico by Cyclic Triaxial Testing
… consolidated undrained monotonic and cyclic triaxial tests were performed using the Playa Santa sand from Porto Rico. Playa Santa sand is a poorly graded calcareous clean beach sand composed of angular particles with large intra-granular voids. A series of consolidated undrained triaxial …
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The significance of specimen end restraint in high pressure triaxial testing of cohesive soil
… specimen end restraint on the interpretation of triaxial test results. Undrained triaxial shear tests have been performed on specimens K0 consolidated to stresses ranging from 0.6 to 10 MPa. Behaviour is examined at three well-defined OCRs of 1, 2 and 4 in compression mode of shear. The tests …
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Evaluation of SHANSEP strenth-deformation properties of undisturbed Boston blue clay from automated triaxial testing
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Civil Engineering, 1991.
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Comparison of recompression and SHANSEP strength-deformation properties of undistrubed Boston blue clay from automated triaxial testing
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Civil Engineering, 1991.
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A structure from motion photogrammetric method for continuously measuring and tracking the deformations of soils during triaxial testing
… soil deformation characteristics during triaxial testing is an important part of characterizing the stress-strain behavior of both saturated and unsaturated soils. The total and local deformations and volume changes of a soil specimen are indispensable parameters that need to be measured …
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THEORETICAL DETERMINATION OF THE YIELD CURVE FOR UNSATURATED SOILS
… based upon the results from suction-controlled triaxial (SCTX) tests. Though, the SCTX tests on unsaturated soils are costly, time-consuming, and laborious, and their results are questionable. This study intends to develop an alternative method to overcome the limitations of the SCTX tests for …
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Shear Strength Parameters of Sand Fly Ash Cement Mixtures
… undrained, unconfined compression, and triaxial testing. Mix designs consisted of 15% fly ash with 0.5 or 1% cement, and poorly graded Ottawa sand compacted using a standard effort at 10 percent moisture content. Consolidated undrained testing on Mix 1, which included flushing and …
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Tunnels in swelling ground: simulation of 3D stress paths by triaxial laboratory testing
… study the swelling behaviour in tunnels. A new triaxial testing procedure is developed, which is able to quantify the swelling behaviour of soft rocks and stiff soils. The Caneva Clay is tested both by conventional oedometer swelling tests and by the new triaxial test. The swelling parameters of …
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An Examination of the Validity of Steady State Shear Strength Determination Using Isotropically Consolidated Undrained Triaxial Tests
… isotropically consolidated undrained (ICU) triaxial tests. The triaxial test was developed for measuring peak strengths, which typically occur at small strains, but steady state conditions typically occur at much larger strains. At large strain levels, the suitability of conventional …
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The influence of salinity on the mechanical behavior of high plasticity soils
… from 0 to 256 g/L. An extensive laboratory testing program involving Constant Rate of Strain (CRS) and K₀ consolidated undrained shear in compression triaxial testing (CK₀UC) was undertaken. Specimens tested in the modified CRS device reached axial effective stresses between 30 and 40 MPa. …
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Rate Effect Behaviour of Different Clays from High Speed Triaxial Element Testing
… natural clays has been studied using high-speed triaxial element testing at axial strain rates up to 100,000 %/hr. Strain rate effects lead to increasing soil shear strength in fine grained soils under undrained conditions and are important for accurate predictions in a number of geotechnical …
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Engineering Characteristics of Coal Combustion Residuals and a Reconstitution Technique for Triaxial Samples
… technique is also presented for use in triaxial testing of surface impounded CCRs.
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The determination of soil parameters for design from stress path tests
… heavily overconsolidated Gault Clay. Laboratory triaxial testing on 38 mm samples is used to measure and soil 100 mm diameter stiffness. A microcomputer-based control system has been developed for use with hydraulically-operated triaxial cells to enable stress path testing, and this is described. …
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The Causes and Implications of Microstructures in Glacial Sediments
… to glacial stress is further examined by triaxial testing of diamict from Yorkshire, and the subsequent examination of its micromorphology. Shears in the material are disrupted by clasts, and this may be responsible for work hardening seen during the tests. Fabric compression, and the …
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Investigation of wellbore stability in a North Sea field development
… wellbore failure analysis shows the necessity of triaxial testing, mini-frac tests, and other advanced data collection techniques to improve the geomechanical model when studying new lithologies, not included in existing rock strength correlations. A probabilistic approach to wellbore stability …
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Influence of post-cyclic loading on hemic peat
… and prepared under consolidated undrained triaxial with effective stresses at 25kPa, 50 kPa, and 100 kPa with different location from Parit Nipah, Johor, Parit Sulong, Batu Pahat, Johor and Beaufort, Sabah. These specimens tested using GDS Enterprise Level Dynamic Triaxial Testing System …
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