降雨入渗影响下公路边坡稳定性分析  

Stability Analysis on Highway Slope under the Influence of Rainfall Infiltration

作　　者：孙刚志[1] 王永波 齐永华 

机构地区：[1]辽宁省交通科学研究院,沈阳110015 [2]大庆油田路桥工程有限责任公司,大庆163458 [3]辽宁省高速公路管理局葫芦岛管理处,葫芦岛125000

出　　处：《北方交通》2011年第6期48-50,共3页Northern Communications

摘　　要：降雨是公路边坡失稳最重要的触发原因。基于渗流力学、土力学等理论,考虑降雨对公路边坡稳定性的影响,采用FLAC3D有限差分软件对自然状态和降雨状态下的公路边坡进行模拟,并对两种情况下的孔隙压力、剪切应变、剪切应力以及安全系数进行对比分析,探讨了公路边坡的安全性问题。Rainfall is the main reason causing the instability of highway slope.Based on the theories like permeation fluid mechanics,soil mechanics and so on,it is to consider the influence of rainfall on the stability of highway slope and respectively simulate the highway slope under the condition of nature and rainfall by using FLAC3D finite difference software.The pore pressure,shear strain,shear stress and safety factor under the two different conditions are compared and analyzed.The safety problem of highway slope is discussed.

关 键 词：公路边坡 降雨入渗 稳定性分析 安全系数 

分 类 号：U416.14[交通运输工程—道路与铁道工程]