Stability Variation Characteristics of Liangshuijing Landslide
During the Three Gorges Reservoir Running

doi:10.3969/j.issn.1674-0696.2011.supp1.028

Journal of Chongqing Jiaotong University(Natural Science) ›› 2011, Vol. 30 ›› Issue (S1): 624-628.DOI: 10.3969/j.issn.1674-0696.2011.supp1.028

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Stability Variation Characteristics of Liangshuijing Landslide During the Three Gorges Reservoir Running

TAN Ling

Institute of Geotechnical Engineering，Chongqing Jiaotong University，Chongqing 400074，China

Received:2011-05-23 Revised:2011-06-20 Online:2011-07-15 Published:2015-03-12

三峡水库运行期间凉水井滑坡稳定性变化特性

谭玲

重庆交通大学岩土工程研究所，重庆400074

作者简介:玲(1986—)，女，新疆库尔勒人，硕士研究生，主要从事地质灾害的演变与减灾技术方面的研究。E-mail：tanlingmxq@139.com。
基金资助:
国家自然科学基金项目(41071017)；交通运输部西部交通建设科技项目(2009318221035)

Abstract

Abstract: Liangshuijing landslide is an old style resurrection-type soil landslide which is large and deep because of the factors of water level change, terrain features and so on. Based on the basic geology conditions of the landslide, the transfer coefficient method was used to evaluate the stability of the landslide after the Three Gorges Reservoir running and an experiment was made to study the impact of water content on stability. The results shoWthat when the Three Gorges Reservoir is running, the stability of landslide is related to the range of sliding body flooded. The stabilities of the landslide change between 1. 014 and 0. 996 when the water level rises or falls at a rate of lm/d between 175Mto 145Mwhich is in a state of most unsteady. At the same time, the shear strength of structure of rock and soil gets nonlinearly lowered as the Three Gorges Reservoir running enlarges the adverse effects on slope stability.

Key words: the stability of landslide, reservoir running, Liangshuijing landslide

摘要： 凉水井滑坡是由库水位变化和自身地形地貌特征等因素所导致的推移式深层大型、复活型土质老滑坡。基于凉水井滑坡的基本地质条件，运用传递系数法对滑坡在三峡水库蓄水运行以后的稳定性进行了，评价，并就滑坡体含水量对滑坡稳定性影响进行了试验研究。结果表明：水库蓄水运行期间，滑坡的稳定性与滑体被水淹没范围有关。当水位以1m／d的速度在175～145m水位间上升或下降时，滑坡的稳定性分别为1．014乖“【996，处于最不稳定状态。同时，因三峡水库蓄水导致岩土体抗剪强度非线性降低，进一步加大了对滑坡稳定性的不利影响。

关键词: 滑坡稳定性, 水库运行, 凉水井滑坡

CLC Number:

P642.22

TAN Ling. Stability Variation Characteristics of Liangshuijing Landslide During the Three Gorges Reservoir Running[J]. Journal of Chongqing Jiaotong University(Natural Science), 2011, 30(S1): 624-628.

谭玲. 三峡水库运行期间凉水井滑坡稳定性变化特性[J]. 重庆交通大学学报（自然科学版）, 2011, 30(S1): 624-628.

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Stability Variation Characteristics of Liangshuijing Landslide During the Three Gorges Reservoir Running

三峡水库运行期间凉水井滑坡稳定性变化特性

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