Dynamic variation rule of phreatic line in Huangtupo landslide in Three Gorges reservoir area

YANG Jin; JIAN Wen-xing; YANG Hu-feng; ZHANG Jiu-long

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Dynamic variation rule of phreatic line in Huangtupo landslide in Three Gorges reservoir area

更新时间：2026-06-25

- Dynamic variation rule of phreatic line in Huangtupo landslide in Three Gorges reservoir area
- Vol. 33, Issue 3, (2012)
- 作者机构：
  
  中国地质大学（武汉）教育部长江三峡库区地质灾害研究中心,武汉,430074
- 作者简介：
- 基金信息：
- DOI：
  CLC： TV62
- Online First：12 March 2012，
  
  Published：2012
- 稿件说明：
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YANG Jin, JIAN Wen-xing, YANG Hu-feng, et al. Dynamic variation rule of phreatic line in Huangtupo landslide in Three Gorges reservoir area[J]. 2012, 33(3).
DOI：

YANG Jin, JIAN Wen-xing, YANG Hu-feng, et al. Dynamic variation rule of phreatic line in Huangtupo landslide in Three Gorges reservoir area[J]. 2012, 33(3). DOI：

摘要

以三峡库区黄土坡滑坡为研究对象，结合滑坡体地下水位监测数据，分析库水涨落对滑坡地下水位的影响。建立了黄土坡滑坡渗流模拟的有限元计算模型，并确定了模型合理的水头边界条件。利用Geo-Studio软件的SEEP/W模块，对库水位涨落情况下滑坡暂态渗流场的变化进行模拟，并且分析浸润线的动态变化过程，确定了库水位涨落对滑坡前缘浸润线影响区在滑坡前缘300 m范围内，并对库水位上升和下降两种工况下滑体前缘浸润线位置进行了预测。最后，分析了库水位涨落下库岸滑坡浸润线变化对滑坡稳定性影响，为研究库水位涨落下库岸滑坡浸润线和滑坡稳定性提供了依据。

Abstract

Huangtupo landslide is studied in detail as a typical example in the Three Gorges reservoir area. Combined with the monitoring data of the groundwater table of the landslide

the impact of reservoir water level variation on groundwater table of the landslide is studied. A finite element computational model of Huangtupo landslide is established for seepage analysis; and the reasonable boundary condition of the model is defined. The transient seepage field of Huangtupo landslide under water level variation is computed using SEEP/W program of Geo-Studio analysis software. Moreover

the dynamic variation of the phreatic line is also analyzed. It is found that the impact area of water level variation on phreatic line is within the range of 300m in the front of the landslide. The location of phreatic line in the front of the landslide is predicted when water level rises and decreases. The stability affected by the phreatic line changing in reservoir bank landslide under water level variation is analyzed. This paper offers a useful reference for the study of phreatic line and stability analysis of reservoir bank landslide.

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Three Gorges Research Center for Geo-hazards of Ministry of Education, China University of Geosciences

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