摘要
基于贵州某山区公路边坡,通过对该公路边坡工程地质情况的分析,对高速公路沿线拟开挖工程边坡的重点研究段进行划分,并对该公路边坡危险性评价模型进行确定。通过因素层次结构法对边坡危险性的分析,将公路边坡灾害的危险性进行等级划分,分别为I级非危险区、Ⅱ级低危险区、Ⅲ级中危险区、Ⅳ级高危险区,就公路沿线边坡的实际情况来看,其中危险区占比8.01%,中危险区占比41.72%,低危险区占比40.01%,非危险区占比10.26%。对重点段边坡进行了系统的计算分析,采用Nsarma法对边坡进行分析,并对相应的危险段提出加固措施,为该高速公路边坡稳定设计提供了依据。
Based on the highway slope in a mountain area in Guizhou,this paper divides the key research section of the slope along the highway along the highway through the analysis of the engineering geological condition of the highway slope,and determines the risk assessment model of the highway slope.By analyzing the risk of slope,the risk of highway slope disaster is divided into four grades,which are divided into non dangerous area(I grade),low dangerous area(grade II),middle danger zone(grade III),high dangerous area(grade IV),10.26%in non dangerous area along the highway and 40.01%in low risk area.41.72%in the middle dangerous area and 8.01%in the dangerous area.The slope of the key section is calculated and analyzed systematically,the slope is analyzed by Nsarma method,and the corresponding reinforcement measures are put forward,which provides the basis for the slope stability design of the expressway.
作者
管新邦
GUAN Xinbang(China University of Mining(Beijing),Beijing 100083,China)
出处
《公路工程》
北大核心
2018年第4期291-295,共5页
Highway Engineering
关键词
稳定性
加固
边坡
公路
危险区
stability
reinforcement
slope
highway
dangerous area
