库水位升降过程中土质岸坡地下水变化试验分析

doi:10.3969/j.issn.1674-0696.2014.03.18

重庆交通大学学报（自然科学版） ›› 2014, Vol. 33 ›› Issue (3): 79-85.DOI: 10.3969/j.issn.1674-0696.2014.03.18

库水位升降过程中土质岸坡地下水变化试验分析

向杰，唐红梅，陈鑫，梁学站，赵先涛

重庆交通大学岩土工程研究所，重庆 400074

收稿日期:2013-02-28 修回日期:2014-03-03 出版日期:2014-06-15 发布日期:2015-01-22
作者简介:向杰(1988—)，女，重庆人，硕士研究生，主要从事工程地质安全与岩土减灾方面的研究。E-mail:1692907325@qq.com
基金资助:
国家自然科学基金项目(41071017) ;重庆交通大学研究生教育创新基金项目(20120112 )

Groundwater Variation of Soil Banks in Fluctuation of Reservoir Water Level

Xiang Jie , Tang Hongmei , Chen Xin , Liang Xuezhan , Zhao Xiantao

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

Received:2013-02-28 Revised:2014-03-03 Online:2014-06-15 Published:2015-01-22

摘要/Abstract

摘要： 以神女溪青石滑坡为原型，以三主峡水库库水位升降变化为工况，依据相似理论建立土质库岸模型;通过试验获取土体的物性参数、坡体内孔隙水压力数据和坡体裂缝情况:采用包辛涅斯克(Boussinesq)非稳定渗流微分方程，求解出模型试验工况下的地下水位浸润线位置。研究表明:水位上升阶段，通过各高程孔隙水压力曲线及求出的坡体内浸润线，孔隙水压力的升高是坡体形成裂缝的催化剂;水位降落阶段，根据各高程孔隙水压力曲线以及浸润线分析得到动水压力是影响其稳定性的关键因素。

关键词: 工程地质学, 孔隙水压力, 坡体裂缝, 浸润线, 稳定性

Abstract: Taking bluestone landslide of Shennvxi River as a prototype , and taking Three Gorges reservoir water level variation as the condition , soil reservoir bank model was established by similarity theory. The soil physical parameters , the pore water pressure data and slope crack condition were obtained by the experiment. The groundwater seepage line position in model condition was calculated with the adoption of Boussinesq unsteady seepage differential equation. The research results show that in the rising stage of water level , the increasing of pore water pressure is the activator of slope cracking , by the pore water pressure curve with different elevation and the calculated slope seepage line. In the drawdown stage of water level , mobilized water pressure is the key factor to affect the bank stability by the analysis on the pore water pressure curve with different elevation and the calculated slope seepage line

Key words: geology engineering, pore water pressure, slope crack, saturation line, stability

中图分类号:

P642.22

向杰，唐红梅，陈鑫，梁学站，赵先涛. 库水位升降过程中土质岸坡地下水变化试验分析[J]. 重庆交通大学学报（自然科学版）, 2014, 33(3): 79-85.

Xiang Jie , Tang Hongmei , Chen Xin , Liang Xuezhan , Zhao Xiantao. Groundwater Variation of Soil Banks in Fluctuation of Reservoir Water Level[J]. Journal of Chongqing Jiaotong University(Natural Science), 2014, 33(3): 79-85.

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库水位升降过程中土质岸坡地下水变化试验分析

Groundwater Variation of Soil Banks in Fluctuation of Reservoir Water Level

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