Abstract
Slope geometry and topographical studies possibly are not the perfect tools for landslide risk assessment in widespread tertiary sedimentary soft rocks in Japan and Pakistan because these rocks are not yet fully lithified and are highly susceptible to weathering and rainfall effects. This paper discusses the strength and deformation response of crushed mudstone to water-submergence because of its extremely high vulnerability to water induced deterioration. Drained torsional shear tests on saturated soils revealed the decay of grains and change in particle shape during consolidation and shearing stages with decrease in particle disintegration at higher confining pressures. Peak shear strengths and friction angles are considerably higher with governing dilatant behaviour for dry specimens as compared to the saturated ones. This study is a caution to conventional soil mechanics in which decay of grains and loss of strength with time are often uncared.
| Original language | English |
|---|---|
| Title of host publication | Prediction and Simulation Methods for Geohazard Mitigation |
| Publisher | CRC Press |
| Pages | 291-297 |
| Number of pages | 7 |
| ISBN (Electronic) | 9780203871041 |
| ISBN (Print) | 9780415804820 |
| State | Published - 1 Jan 2009 |
| Externally published | Yes |
Bibliographical note
Publisher Copyright:© 2009 Taylor & Francis Group, London.
ASJC Scopus subject areas
- General Engineering