Study of the Effect of Shear Rates on Residual Shear of Landslide Soil-Reference-Cited by-同舟云学术

Study of the Effect of Shear Rates on Residual Shear of Landslide Soil

Published:2013-01 Issue: Volume:639-640 Page:598-601
ISSN:1662-8985
Container-title:Advanced Materials Research
language:
Short-container-title:AMR

Author:

Chen Chuan Sheng¹,Liu Jing Fang¹,Wen Shi Zhi¹

Affiliation:

1. Central South University of Forestry and Technology

Abstract

The residual strength is one of the most important strength parameters to evaluate the stability of a reactivated landslide slope, but the relation between residual strength gained by using ring shear tests and shear speed still remains unclear. In order to clarify the relationship between them, the variation in residual friction coefficient of slip surface soils with shearing rates were calculated and discussed in this paper by means of an undrained ring shear apparatus on Miaowan sample of China-Loess Plateau , predominantly consists of silty-sandy(81.3%), and Kamenose sample of Japan, predominantly consists of clay(73.2%) in texture .The residual friction coefficient was observed to be lower for higher shear rates in Kamenose sample;while the variation of its shear behaviour at different shear rates is fluctuant in Miaowan sample. This change in pore water pressures and soil texture could be thought as the rate effect mechanism of residual shear strength.

Publisher

Trans Tech Publications, Ltd.

Subject

General Engineering

Link

https://www.scientific.net/AMR.639-640.598.pdf

Reference9 articles.

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3. Ramiah, B.K. and Purushothama Raj, P, Influence of strain rate on the residual strength of a kaolinitic clay, Proc. Geotechnical Engineering J.S.E.A.S.S.E., Vol. 2 (1971)151-158.

4. Skempton, A. W, Residual strength of clays in landslides, folded strata and the laboratory, Geotechnique. Vol. 35, No. 1(1985)3-18.

5. Lemos, L., Skempton, A.W. and Vaughan, P. R, Earthquake loading of shear surfaces in slopes, Proc. 11th I.C.S.M.F.E., Vol. 4, pp.1955-1958(1985).

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