摘要
边坡土体内渗流场与应力场是相互作用、相互影响的一个整体。针对地下水渗流对边坡稳定性的影响,文章开展渗流场与应力场相互作用机理的研究,并利用ABAQUS有限元软件进行建模分析,验证有限元强度折减法及其失稳判据在边坡稳定分析中的可靠性及合理性。结果表明:地下水渗流作用影响下的边坡稳定性明显降低,安全系数由未考虑渗流作用时的1.33降至1.097,边坡发生失稳破坏,地下水渗流是影响边坡稳定的重要因素。
The seepage field and stress field in slope soil are a whole that interact and influence each other.In view of the influence of groundwater seepage on slope stability,this article studied the interaction mechanism between seepage field and stress field,and used ABAQUS finite element software for modeling analysis,it verified the reliability and rationality of FEM strength reduction method and its instability criterion on the slope stability analysis.The results showed that the slope stability under the influence of groundwater seepage is significantly reduced,the safety factor is reduced from 1. 33 when the seepage effect is not taken into consideration to 1. 097,and the slope shows instability failure,thus the groundwater seepage is an important factor affecting the slope stability.
作者
朱松悦
杨和平
ZHU Song-yue;YANG He-ping(Guangxi Transportation Research ＆ Consulting Co.,Ltd.,Nanning,Guangxi,530007;School of Traffic and Transportation,Changsha University of Science ＆ Technology,Changsha,Hunan,410114)
出处
《西部交通科技》
2018年第6期11-14,37,共5页
Western China Communications Science & Technology
关键词
渗流场
应力场
边坡稳定性
ABAQUS有限元软件
建模
计算
Seepage field
Stress field
Slope stability
ABAQUS finite element software
Modeling
Calculation
