降雨型堆积层滑坡特征及稳定性分析

›› 2005, Vol. 26 ›› Issue (S2): 6-10.

降雨型堆积层滑坡特征及稳定性分析

陈善雄^{1, 2}，许锡昌¹，徐海滨¹

1.中国科学院武汉岩土力学研究所，武汉 430071；2.华中科技大学土木工程与力学学院，武汉 430072

收稿日期:2005-02-27 发布日期:2005-12-16
作者简介:陈善雄，男，1965年生，博士生，副研究员，主要从事非饱和土土力学和地基处理的理论与工程应用研究工作

Features and stability analysis of rainfall-induced colluvial landslides

CHEN Shan-xiong^1,2, XU Xi-chang¹, XU Hai-bin¹

1.Institute of Rock & Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, China; 2.College of Civil Engineering and Mechanics, Huazhong University of Science and Technology, Wuhan 430074, China

Received:2005-02-27 Published:2005-12-16

摘要/Abstract

摘要： 堆积层滑坡是滑坡的一种基本类型，其物质组成、结构等有别于其它类型滑坡。堆积层滑坡失稳绝大多数是由降雨或地下水位的变化而引起的，在降雨诱发堆积层滑坡稳定性分析中，必须考虑渗透力的作用。系统分析了堆积型滑坡发育环境及特征，推导了基于总应力法和有效应力法的可考虑渗透力的传递系数法，采用有效应力法计算滑坡稳定系数时，既要考虑地下水浮力作用，又要考虑地下水流动时的渗透力作用；采用总应力法计算滑坡稳定系数时，仅需考虑地下水流动时的渗透力作用。对一个工程实例进行了深入剖析，验证了考虑渗透力的传递系数法的可靠性。

关键词: 降雨, 堆积层滑坡, 稳定性分析, 传递系数法

Abstract: The colluvial landslide is a kind of basic type of landslides; and its matter component and structure are different from other type landslides. The slope instability of colluvial landslide mostly is induced by rainfall or change of groundwater level; and groundwater plays a fateful role in the slope instability, therefore, the seepage action should be considered in the landslide stability analysis. The growth environment and characteristic of a colluvial landslide is analyzed systematically. Based on total stress method and effective stress method, a transfer coefficient method with considering seepage forces for landslide stability analysis is established. Adopting effective stress method to calculate the landslide stability factor, both the buoyancy force of groundwater to soil and seepage force should be considered; and adopting effective stress method to calculate the landslide stability factor, only seepage force should be considered. At last, an example is thoroughly analyzed; and the result shows that the transfer coefficient method with considering seepage forces for landslide stability analysis is reliable.

Key words: rainfall, colluvial landslide, rainfall- induced colluvial landslide, stability analysis, transfer cofficient method

中图分类号:

TU 443

陈善雄，许锡昌，徐海滨,. 降雨型堆积层滑坡特征及稳定性分析[J]. , 2005, 26(S2): 6-10.

CHEN Shan-xiong , XU Xi-chang , XU Hai-bin,. Features and stability analysis of rainfall-induced colluvial landslides[J]. , 2005, 26(S2): 6-10.

参考文献

相关文章 15

[1]	张明礼, 温智, 董建华, 王得楷, 侯彦东, 王斌, 郭宗云, 魏浩田, . 考虑降雨作用的气温升高对多年冻土活动层水热影响机制[J]. 岩土力学, 2019, 40(5): 1983-1993.
[2]	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.
[3]	马显春, 罗刚, 邓建辉, 上官力, . 陡倾滑面堆积层滑坡抗滑桩锚固深度研究[J]. 岩土力学, 2018, 39(S2): 157-168.
[4]	秦雨樵，汤华，冯振洋，尹小涛，王东英, . 基于聚类分析的边坡稳定性研究[J]. , 2018, 39(8): 2977-2983.
[5]	黎瀚文，张璐璐，冯世进，郑文棠,. 复杂大气环境作用下高铁路基水分迁移响应[J]. , 2018, 39(7): 2574-2582.
[6]	李清川，李术才，王汉鹏，张红军，张冰，张玉强,. 上覆流沙层隧道开挖面稳定性分析与数值试验研究[J]. , 2018, 39(7): 2681-2690.
[7]	张海涛，罗先启，沈辉，毕金锋. 基于矢量和的滑面应力抗滑稳定分析方法[J]. , 2018, 39(5): 1691-1698.
[8]	李宁，郭双枫，姚显春,. 再论岩质高边坡稳定性分析方法[J]. , 2018, 39(2): 397-406.
[9]	朱才辉，郭炳煊. 古建筑基座渗漏监测及诱因分析[J]. , 2018, 39(11): 4210-4217.
[10]	朱彦鹏，杨晓宇，马孝瑞，杨校辉，叶帅华, . 边坡稳定性分析双折减法的几个问题[J]. , 2018, 39(1): 331-338.
[11]	聂治豹，郑宏，张谭. 基于强度折减法确定边坡临界滑面的小波变换法[J]. , 2017, 38(6): 1827-1831.
[12]	张锟，徐青，王一凡，阿湖宝. 自适应差分进化算法在边坡滑面搜索中的应用[J]. , 2017, 38(5): 1503-1509.
[13]	符贵军，张思渊，张玉军. 一种双重孔隙-裂隙岩体流变模型及其在地下洞室有限元分析中的应用[J]. , 2017, 38(2): 601-609.
[14]	贺可强，郭栋，张朋，郭璐，张国栋,. 降雨型滑坡垂直位移方向率及其位移监测预警判据研究[J]. , 2017, 38(12): 3649-3659.
[15]	郑俊杰，郭震山，崔岚，张军,. 考虑非饱和渗流与增湿膨胀下的膨胀土隧道稳定性分析[J]. , 2017, 38(11): 3271-3277.

Metrics

Viewed

Full text

Abstract

Cited

Shared

Discussed