Download or read book Failure of Slopes in Overconsolidated Clay written by Joakim G. Laguros and published by . This book was released on 1982* with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Initiation of Failure in Slopes in Overconsolidated Clays and Clay Shales written by Ioannis V. Constantopoulos and published by . This book was released on 1971 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Initiation of Failure in Slopes in Overconsolidated Clays and Clay Shales written by Ioannis V. Constantopoulos and published by . This book was released on 1971 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt: The conditions leading to the initiation of failure in slopes of overconsolidated clay or clay shale are investigated by means of two finite element programs. The analysis is two-dimensional and assumes plane strain in a homogeneous semi-infinite mass. The material is assumed to be linearly elastic and isotropic with body forces. No pore pressure effects are analyzed. The effects of initial stress ratio, slope angle, and available friction, are investigated for two smooth bottom models and the one rough bottom model. The results are presented in a dimensionless ratio involving the cohesion required to prevent the beginning of failure and the overburden stress at the toe before excavation.

Download or read book Slope Failures in an Over consolidated Clay Seattle Washington written by Donald Joseph Palladino and published by . This book was released on 1971 with total page 408 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Shear Strength Characteristics and Failure Mechanism of Slopes in Overconsolidated Soils of Nebraska written by Hossein Bahmyari and published by . This book was released on 2018 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt: Geotechnical engineers deal with some challenging problems when encountering long-term slope stability in overconsolidated clays and clayey shales. One of these problems is determining a suitable method to estimate the reliable shear strength of overconsolidated clayey soils for long-term slope stability. According to Eversol (2013), one half of the counties in Nebraska have experienced slope failure in overconsolidated soils, especially in north and east Nebraska. In this research, shear strength characteristics of overconsolidated clayey soils of Nebraska is investigated in regard to long-term stability of slopes, and the failure mechanism in such soils is examined. Undisturbed samples from boring logs from two different failure locations were taken. The research involved laboratory testing to compare and investigate the shear strength parameters of overconsolidated soils in undrained and drained conditions at high and low normal effective stress levels. Some issues that are addressed include: (i) the shear strength reduction due to low effective stress in adrained condition, (ii) the swelling behavior during consolidation and shearing stages of saturated overconsolidated soils in low effective confining stress, (iii) the suitable shear strength that helps to design/repair slopes in overconsolidated soils of Nebraska. One major finding of this research is that one of the main reasons for slope instability in overconsolidated clayey soils and shales in Nebraska is shear strength reduction. This strength reduction, which usually causes a progressive failure in overconsolidated soils in Nebraska, is due to swelling and softening; (2) the presence of expansive clay minerals in overconsolidated soils induced additional swelling in some areas reduces the shear strength of soils dramatically, especially at shallow depths; and (3) the laboratory results showed that the fully softened shear strength from a consolidated drained triaxial test may present a suitable shear strength for long-term slope stability in overconsolidated soils in Nebraska.

Download or read book Some Slope Failures in Heavily Over consolidated Clay written by and published by . This book was released on 1963 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Slopes in Stiff fissured Clays and Shales written by James Moyer Duncan and published by . This book was released on 1969 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Drum Centrifuge Studies of Overconsolidated Clay Slopes written by Richard John Fragaszy and published by . This book was released on 1979 with total page 290 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Slope Analysis written by R Chowdury and published by Elsevier. This book was released on 2012-12-02 with total page 436 pages. Available in PDF, EPUB and Kindle. Book excerpt: Slope Analysis summarizes the fundamental principles of slope analysis. It explores not only the similarities but also the differences in rock slopes and soil slopes, and it presents alternative methods of analysis, new concepts, and new approaches to analysis. The book introduces both natural and man-made slopes, the nature of soils and rocks, geomorphology, geology, and the aims of slope analysis. These topics are followed by chapters about stress and strain, shear strength of rock and soils, and progressive failure of slopes. This book also presents limit equilibrium methods I and II, which are the planar failure surfaces and slip surfaces of arbitrary shape, respectively. It also includes stress analysis and slope stability, natural slope analysis, and a brief review on plasticity and shear band analysis. Before presenting its conclusions, the book discusses special aspects of slope analysis, such as earthquake analysis, pseudo-static analysis, dynamic analysis, and anisotropy, in addition to Newmark’s approach.

Download or read book Progressive Failure in Slopes of Overconsolidated Plastic Clay and Clay Shales written by Laurits Bjerrum and published by . This book was released on 1968 with total page 29 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Progressive Failure in Slopes of Overconsolidated Plastic Clay and Clay Shales written by Laurits Bjerrum (Ingénieur civil) and published by . This book was released on 1968 with total page 29 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Drum Centrifuge Modeling of Overconsolidated Clay Slopes written by Ali Mohammad Oskoorouchi and published by . This book was released on 1981 with total page 378 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Computer Analyses of the Initiation of Progressive Failure of Slopes in Over consolidated Clays and Clay Shales written by Ioannis Vassiliou Constantopoulos and published by . This book was released on 1970 with total page 846 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Mechanism of Progressive Failure in Slopes of Over Consolidated Plastic Clays and Clay Shales written by Laurits Bjerrum and published by . This book was released on 1966 with total page 67 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Slope Failure in Over Consolidated Fissured Clays in Southwestern Iowa written by John Donald Scott and published by . This book was released on 1964* with total page 362 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Growth of Slip Surfaces in the Progressive Failure of Overconsolidated Clay written by Andrew Clennel Palmer and published by . This book was released on 1972 with total page 43 pages. Available in PDF, EPUB and Kindle. Book excerpt: In heavily over-consolidated clays there is a marked peak in the observed relation between shear stress and shear strain. As the strain increases, the stress falls from a peak to a much smaller residual stress. Slopes made from such a clay often fail progressively many years after construction. Sliding occurs on a concentrated slip surface, and it is found that the mean resolved shear stress on that surface is markedly less than the peak shear strength. Concepts from fracture mechanics, and in particular the J-integral, are used to derive conditions for the propagation of a concentrated shear band of this kind. The results indicate the presence of a strong size effect, which has important implications for the use of models in soil mechanics. An elastic analysis makes it possible to determine the size of the end zone in which the shear stress on the shear band falls to its residual value. An attempt is made to assess the possible sources of the time-dependence governing propagation speed of the shear band. (Author).

Download or read book Deformation and Progressive Failure in Geomechanics written by A. Asaoka and published by Elsevier. This book was released on 1997-10-23 with total page 956 pages. Available in PDF, EPUB and Kindle. Book excerpt: Progressive failure has been a classical problem in the field of geotechnical engineering and has attracted considerable attention in connection with slope stability and foundation problems. It is associated with strain localization or shear banding and is also related to damage in material structures. As knowledge of the progressive failure mechanism increases, it is now necessary to establish effective communications between researchers and engineers. The International Symposium on Deformation and Progressive Failure in Geomechanics provided an opportunity for discussing recent advances in this area. A total of 136 papers were contributed from 22 countries. As well as these, the symposium proceedings also contain 8 interim technical reports on the subject by the members of the Asian Technical Committee of the International Society for Soil Mechanics and Foundation Engineering and the Japanese Geotechnical Society National Committee on Progressive Failure in Geo-structures.