Shear strength degeneration of soil and rock mixture in Three Gorges Reservoir bank slopes under influence of impounding

LI Wei-shu; DING Xiu-li; Wu Ai-qing; XIONG Shi-hu

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Shear strength degeneration of soil and rock mixture in Three Gorges Reservoir bank slopes under influence of impounding

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- Shear strength degeneration of soil and rock mixture in Three Gorges Reservoir bank slopes under influence of impounding
- Vol. 28, Issue 7, (2007)
- 作者机构：
  
  1. 长江科学院水利部岩土力学与工程重点实验室,武汉,430010
  2. 长江科学院重庆岩基研究中心,重庆,400014
  3. 长江科学院岩基研究所,武汉,430010
- 作者简介：
- 基金信息：
- DOI：
  CLC： TV223.1
- Online First：13 September 2013，
  
  Published：2007
- 稿件说明：
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LI Wei-shu, DING Xiu-li, Wu Ai-qing, et al. Shear strength degeneration of soil and rock mixture in Three Gorges Reservoir bank slopes under influence of impounding[J]. 2007, 28(7).
DOI：

LI Wei-shu, DING Xiu-li, Wu Ai-qing, et al. Shear strength degeneration of soil and rock mixture in Three Gorges Reservoir bank slopes under influence of impounding[J]. 2007, 28(7). DOI：

摘要

在三峡库区滑坡体中大量存在的土石混合体是一种不同于土和岩体的高度非均质不连续体。基于三峡库区水位涨落将引起土石混合体含水率变化的特点，研究了土石混合体在不同含水状态下直剪强度参数的变化规律，并在大量的试验基础上建立了c，? 值与含水率之间的关系式，得出了不同碎石含量下c，? 值随着含水率变化的弱化公式，为评价三峡库岸稳定与治理提供了量值依据。

Abstract

Soil and rock mixture is a kind of highly inhomogeneous and noncontinuous material which is different from soil and rock mass

being widely distributed over the Three Gorges Reservoir bank slopes. Considering that the water fluctuation of the reservoir would cause soil water content to change

the law

under which the shear strength parameters for soil and rock mixture vary in accordance with water content's varying

is studied. The relationship among c

? and water content of the mixture with different macadam contents is established based on numerous tests. It could be a quantized basis for evaluating and enhancing the stability of the Three Gorges Reservoir bank slopes.

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