摘要
为解决大型降雨导致的公路边坡稳定性问题与堤坝的防汛问题,文章基于饱和与非饱和渗流原理,采用强度折减技术与Abaqus有限元分析软件,以哈尔滨市某高速公路边坡土体为例,模拟大型降雨过程中边坡土体的变化,分析降雨渗流作用下对公路均质土边坡稳定性的影响,并计算出降雨前后的安全系数。结果分析表明:若降雨持续时间较长,边坡稳定性会随降雨时间和降雨强度的增长而持续下降,边坡极易发生滑坡破坏,也为堤坝的防汛和抢护提供参考。
In order to solve the problems of highway slope stability caused by large-scale rainfall and flood prevention of embankments,this paper,based on the principles of saturated and unsaturated seepage,uses strength reduction technology and ABAQUS finite element analysis software to simulate the changes of slope soil mass during large-scale rainfall,and analyzes the impact of rainfall seepage on the stability of highway homogeneous soil slope,and calculate the safety coefficient before and after rainfall.The result analysis shows that if the rainfall lasts for a long time,the stability of the slope will continue to decline with the increase of rainfall time and intensity,and the slope is prone to landslide damage,which also provides a reference for flood prevention and emergency rescue of embankments.
作者
张庆海
马令辉
武立华
李宁
Zhang Qinghai;Ma Linghui;Wu Lihua;Li Ning(School of Agriculture and Hydraulic Engineering,Suihua University,Suihua,Heilongjiang 152001;China Post Limited,Jilin Province Branch,Jilin City,Jilin 132000)
出处
《绥化学院学报》
2023年第6期149-152,共4页
Journal of Suihua University
基金
黑龙江省大学生创新创业训练计划项目“基于ABAQUS软件的寒地黑土边坡稳定性研究”(S202210236053)
绥化学院大学生创新创业训练计划项目“BIM智能翻模技术在装配式建筑中的应用”(shxy2022040)
