Author: Ramachandra Phanikumar Publisher: LAP Lambert Academic Publishing ISBN: 9783659392788 Category : Languages : en Pages : 68
Book Description
Shear strength of soils is an important engineering aspect because shear strength characteristics are widely used in various applications such as bearing capacity and earth pressure of soils. Shear strength of sands is somewhat simpler than that of clays, which are complex materials exhibiting engineering behaviour difficult to predict. Shear strength of clays depends of water content, drainage conditions, rate of loading and degree of compaction.Unconfined compression tests were performed on cylindrical samples compacted at different remoulded densities chosen from the compaction curves of the soil. Proctor compaction tests were performed on the soil at three different compaction energies corresponding to N=25, 35 and 50. Dry densities of test samples corresponding to water contents of 10%,12% and 14% were chosen from the three compaction curves pertaining to N=25,35 and 50. Remoulded cylindrical samples were prepared for the performance of unconfined compression tests at the above dry densities and water contents. Stress strain characteristics, variation of peak compressive stress with significant parameters were studied.
Author: Lawrence Tsi-Ching Chung Publisher: ISBN: Category : Clay Languages : en Pages : 172
Book Description
"The investigation was undertaken to determine shear strength and pore pressure parameters of a soil when subjected to sequential loading. This method is intended to similate the in-situ condition of stress application under certain field conditions. The testing procedure, a sequential triaxial shear test, is described. This test consists of successive stages of partial consolidation followed by undrained shear. Triaxial consolidation and shear strength characteristics of a sedimented remolded silty-clay are compared with the results from conventional tests on isotropically consolidated samples. The undrained strength was found to be a function of moisture content, irrespective of the method of test and initial stress system for the normally consolidated soil. A unique relationship was established between a pore pressure parameter, the ratio of the change in pore pressure to the effective vertical consolidation pressure, and undrained strength. It is concluded that this sequential procedure of testing does change the strength characteristics of the soil. These cannot be predicted from the conventional test"--Abstract, page ii.
Author: Ning Lu Publisher: John Wiley & Sons ISBN: Category : Technology & Engineering Languages : en Pages : 614
Book Description
Unsaturated Soil Mechanics is the first book to provide a comprehensive introduction to the fundamental principles of unsaturated soil mechanics. * Offers extensive sample problems with an accompanying solutions manual. * Brings together the rapid advances in research in unsaturated soil mechanics in one focused volume. * Covers advances in effective stress and suction and hydraulic conductivity measurement.
Author: Ramachandra Phanikumar
Author: Leslie Yuan-Cheng Yao
Author: Ling Lin
Author: Robert Kirk Bowden
Author: George Samuel Joseph
Author: Lawrence Tsi-Ching Chung
Author: Brian Eugene Ladd
Author: Ning Lu
Author: Lowell Howard Shifley
Author: Hiroshi Mori