Study on statistical rule of shear strength parameters of soil in landslide zone in Three Gorges Reservoir area

LI Yuan-yao; YIN Kun-long; CHAI Bo; ZHANG Gui-rong

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Study on statistical rule of shear strength parameters of soil in landslide zone in Three Gorges Reservoir area

更新时间：2026-06-25

- Study on statistical rule of shear strength parameters of soil in landslide zone in Three Gorges Reservoir area
- Vol. 29, Issue 5, (2008)
- 作者机构：
  
  中国地质大学工程学院,武汉,430074
- 作者简介：
- 基金信息：
- DOI：
  CLC： TU432
- Online First：24 July 2013，
  
  Published：2008
- 稿件说明：
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LI Yuan-yao, YIN Kun-long, CHAI Bo, et al. Study on statistical rule of shear strength parameters of soil in landslide zone in Three Gorges Reservoir area[J]. 2008, 29(5).
DOI：

LI Yuan-yao, YIN Kun-long, CHAI Bo, et al. Study on statistical rule of shear strength parameters of soil in landslide zone in Three Gorges Reservoir area[J]. 2008, 29(5). DOI：

摘要

收集和整理了近年来三峡库区地质灾害防治工程中近400处滑坡的勘察资料，采用地质分析和工程地质类比法，指出三峡库区内存在5类易滑地层。运用K-S有限比较法，对3 308组抗剪强度参数试验数据分类进行了拟合优度检验，发现5类易滑地层中滑坡滑带土的c、? 值一般均能接受正态和对数正态分布，但c值与? 值相比，最优分布服从对数正态分布者更多，而服从正态分布者更少。针对区内滑带土普遍含有碎石的显著特点，对? 值与碎石含量的相关关系进行了线性回归分析发现滑带土? 值与含石量呈现良好的正相关关系。

Abstract

Data about 400 landslides in Three-George reservoir area were collected and summarized in recent years. It is concluded that there are five types of sliding-prone strata in reservoir area on the basis of geologic analysis and engineering geology analogy analysis. Through K-S finite contrast method

test of goodness of fit was respectively carried out on 3 308 groups of shear strength parameters; and the results showed that distribution forms of parameters c and ? are normal distribution and logarithmic normal distribution. The optimum fits of probabilistic models of c are mainly logarithmic normal distribution. As there are gravels in soil in landslide zone

linear regression analysis was carried out between the gravel content and the parameter ? of soil in landslide zone and the results indicated a well positive correlation relationship.

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Related Institution

Changjiang Geotechnical Engineering Cooperation

College of Civil Engineering & Architecture, China Three Gorges University

Hubei Engineering Research Center of Geological Hazards Prevention

National Field Observation and Research Station of Landslides in Three Gorges Reservoir Area of Yangtze River

Collaborative Innovation Center for Geo-hazards and Eco-Environment in Three Gorges Area of Hubei Province

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