水位涨落对库岸滑坡孔隙水压力影响的非饱和渗流分析

›› 2008, Vol. 29 ›› Issue (S1): 85-89.

水位涨落对库岸滑坡孔隙水压力影响的非饱和渗流分析

柳群义¹，朱自强¹，何现启¹，鲁光银¹，唐军峰^2,3

1. 中南大学信息物理工程学院，长沙 410083；2. 中南大学资源与安全工程学院，长沙 410083； 3. 中国水电工程顾问集团公司中南勘测设计研究院, 长沙 410014

收稿日期:2008-07-25 出版日期:2008-11-11 发布日期:2016-04-15
作者简介:柳群义，男，1977年生，博士研究生，主要从事地质灾害的预测预报与评价工作。
基金资助:
湖南省科技攻关项目（No. 05SK3077）。

Unsaturated seepage analysis of the influence of water level fluctuation on pore water pressure of landslide in reservoir area

LIU Qun-yi¹, ZHU Zi-qiang¹, HE Xian-qi¹, LU Guang-yin¹, TANG Jun-feng^2,3

1. School of Info-physics and Geomatics Engineering, Central South University, Changsha 410083, China; 2. School of Resources & Safety Engineering, Central South University, Changsha, 410083, China; 3. Central South Design and Research Institute, CHECC Changsha 410014, China

Received:2008-07-25 Online:2008-11-11 Published:2016-04-15

摘要/Abstract

摘要： 以某水库库岸滑坡为工程背景，根据饱和-非饱和渗流控制方程，针对不同滑坡体渗透性和库水位升降速率，研究库水位变化条件下滑坡体内孔隙水压力的动态响应，得到：(1) 水位升降时，在相同的入渗条件下，饱和渗透系数对初始地下水位有明显的影响；增大饱和渗透系数能降低地下水位，使地下水位线变得平缓，滑坡体的动、静水压力减小，有利于稳定；(2) 增加库水位升降速率，地下水位响应滞后变得显著，地下水位线形态整体变陡，滑坡体的动水压力增大，不利于边坡稳定性。

关键词: 水位涨落, 库岸边坡, 孔隙水压力, 非饱和渗流

Abstract: Iandslide in a certain reservoir area is chosen as the engineering background. According to the saturated-unsaturated seepage equation, the dynamic response of pore water pressure in the landslide influenced by the fluctuation of water level is studied when considering the infiltration characteristics and the fluctuation velocity of water level. The analysis results show that (1) when the water level fluctuates, the saturated permeability coefficient has great impact on the initial water level under the same infiltration condition; with the increase of the saturated permeability coefficient, the water level becomes lower, and the water level line becomes more smooth, which has smaller impact on the dynamic and static pore water pressure, and is good to the slope stability; (2) with the increase of fluctuation velocity of water level, the response of water level lags behind, the water level line becomes steeper, which causes greater dynamic pore water pressure to the slope, and is worse to the slope stability.

Key words: water level fluctuation, slope at reservoir area, pore water pressure, unsaturated seepage

中图分类号:

TU 457

柳群义，朱自强，何现启，鲁光银，唐军峰 . 水位涨落对库岸滑坡孔隙水压力影响的非饱和渗流分析[J]. , 2008, 29(S1): 85-89.

LIU Qun-yi , ZHU Zi-qiang , HE Xian-qi , LU Guang-yin , TANG Jun-feng . Unsaturated seepage analysis of the influence of water level fluctuation on pore water pressure of landslide in reservoir area[J]. , 2008, 29(S1): 85-89.

参考文献

相关文章 15

[1]	贺桂成, 廖家海, 李丰雄, 王昭, 章求才, 张志军. 水饱和边坡夹层热-孔隙水-力耦合作用模型及应用[J]. 岩土力学, 2019, 40(5): 1663-1672.
[2]	谢强, 田大浪, 刘金辉, 张建华, 张志斌, . 土质边坡的饱和−非饱和渗流分析及特殊应力修正[J]. 岩土力学, 2019, 40(3): 879-892.
[3]	汪华斌, 李建梅, 金怡轩, 周博, 周宇, . 降雨诱发边坡破坏数值模拟两个关键问题的解决方法[J]. 岩土力学, 2019, 40(2): 777-784.
[4]	尹晓萌, 晏鄂川, 刘旭耀, 李兴明, . 土体稳定性计算中地下水作用力探讨[J]. 岩土力学, 2019, 40(1): 156-164.
[5]	周昌，胡新丽，徐楚，王强，徐迎. 基于电磁驱动的滑坡模型水分迁移理论及试验研究[J]. , 2018, 39(9): 3347-3354.
[6]	赵建军，余建乐，解明礼，柴贺军，李涛，步凡，蔺冰，. 降雨诱发填方路堤边坡变形机制物理模拟研究[J]. , 2018, 39(8): 2933-2940.
[7]	邓华锋，张恒宾，李建林，王晨玺杰，张吟钗，王伟，胡亚运. 水-岩作用对砂岩卸荷力学特性及微观结构的影响[J]. , 2018, 39(7): 2344-2352.
[8]	张晨阳，张明，张泰丽，孙强，杨龙，. 侵入岩脉风化壳对中林村残积土滑坡渗流场和稳定性的影响[J]. , 2018, 39(7): 2617-2625.
[9]	张修照，巫尚蔚，张超，杨春和，. 不同固结条件下尾矿动孔压演化规律[J]. , 2018, 39(3): 815-822.
[10]	王永洪，张明义，刘俊伟，白晓宇, . 超孔隙水压力对低塑性黏性土桩土界面抗剪强度的影响[J]. , 2018, 39(3): 831-838.
[11]	陈卫忠，马永尚，于洪丹，龚哲，李香玲，. 泥岩核废料处置库温度-渗流-应力耦合参数敏感性分析[J]. , 2018, 39(2): 407-416.
[12]	苗发盛，吴益平，谢媛华，李曜男，李麟玮. 水位升降条件下牵引式滑坡离心模型试验[J]. , 2018, 39(2): 605-613.
[13]	刘忠玉, 张家超, 郑占垒, 关聪. 考虑Hansbo渗流的二维Biot固结有限元分析[J]. 岩土力学, 2018, 39(12): 4617-4626.
[14]	刘世伟，盛谦，朱泽奇，龚彦峰，崔臻，李建贺，张善凯，. 隧道围岩内地下水渗流边界效应影响研究[J]. , 2018, 39(11): 4001-4009.
[15]	杨耀辉，陈育民，刘汉龙，李文闻，江强, . 排水刚性桩群桩抗液化性能的振动台试验研究[J]. , 2018, 39(11): 4025-4032.

Metrics

Viewed

Full text

Abstract

Cited

Shared

Discussed