Research on method of landslide stability valuation during sudden drawdown of reservoir level

LIU Xin-xi; XIA Yuan-you; LIAN Cao; ZHANG Kai-peng

English Version Journal Login

您当前的位置：

首页 >

文章列表页 >

Research on method of landslide stability valuation during sudden drawdown of reservoir level

更新时间：2026-06-25

- Research on method of landslide stability valuation during sudden drawdown of reservoir level
- Vol. 26, Issue 9, (2005)
- 作者机构：
  
  1. 武汉理工大学土木与建筑学院,武汉,430070
  2. 中国地质大学工程学院,武汉,430074
- 作者简介：
- 基金信息：
- DOI：
  CLC： TU457
- Online First：30 December 2013，
  
  Published：2005
- 稿件说明：
移动端阅览
LIU Xin-xi, XIA Yuan-you, LIAN Cao, et al. Research on method of landslide stability valuation during sudden drawdown of reservoir level[J]. 2005, 26(9).
DOI：

LIU Xin-xi, XIA Yuan-you, LIAN Cao, et al. Research on method of landslide stability valuation during sudden drawdown of reservoir level[J]. 2005, 26(9). DOI：

摘要

三峡水库蓄水及水位波动，将极大地改变滑坡体内的水文地质条件，库水位骤降和暴雨入渗是导致滑坡的主要因素。库水位骤降时的滑坡稳定性评价是滑坡防治中的一个难题。根据三峡水库水位调控方案和库区滑坡地下水作用的力学模式，利用有限元模拟库水位从175 m骤降至145 m时的滑坡暂态渗流场。建立了渗透力作用下滑坡稳定性评价的不平衡推力法。研究表明：滑坡的渗透系数和库水位下降速度是影响滑坡稳定性的主要因素，当库区堆积层滑坡渗透系数小于0.864 m/d，库水位发生骤降为2 m/d。库水位骤降时滑坡稳定性降到最小的水位通常在175 m水位以下10～20 m处。其研究为库区 175 m水位滑坡治理提供了科学依据。

Abstract

When the Three Geoges Reservoir impounding water and water level fluctuating

the hydrological condition of landslides will be greatly changed. Both the sudden drawdown of reservoir water level and rainstorm infiltration become major factors that effect on the stability of landslide. The stability evaluation of landslide is difficult in the sudden drawdown of reservoir water level. On the basis of the project that reservoir water level is controlled and the mechanical mode that the ground water acts on landslides in Three-Gorges Reservoir area

transient seepage due to the sudden drawdown of reservoir water level from 175 m to145 m is computed using the finite element. Disequilibrium push method is applied to stability evaluation of landslide under seepage forces. The results of the stability analysis show that permeability coefficient of landslides and the descending velocity of reservoir water level are main factors that effect on the stability of landslide When the permeability coefficient of landslides is less than 0.864 m/d and velocity is 2 m/d

the sudden drawdown of reservoir water level will take place. And water level on which safety factor of Landslide is minimum drops by 10m to 20m under 175m water level

which will provide scientific bases for the treatment of landslide in 175m water level in Three Gorges Reservoir.

关键词

Keywords

references

Views

2278

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Stability analysis of coal measure soil slope under rainfall infiltration

Transient stability analysis of dishuiya landslide No.1 under rainfall condition

SVM prediction of nonstationary deformation of landslide based on identification with prior knowledge

An equivalent seepage resistance model with seepage-stress coupling for fractured rock mass

Research on shear strength of remolding diatomite by ring shear tests

Related Author

ZHU Lei

HONG Bao-ning

YIN Xiao-tao

RAN Chang-guo

WANG Shui-lin

DONG Hui

CHEN Jia-bo

YANG Guo-yue

Related Institution

Key Laboratory of Geomechanics and Embankment Engineering of Education Ministry, Hohai University

Geotechnical Research Institute, Hohai University

State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences

State Key Laboratory of Frozen Soil Engineering, Institute of Cold and Arid Regions Environment and Engineering, Chinese Academy of Sciences

China Communications Second Survey Design and Research Institute

AI问答

⁰