安全与环境工程2024，Vol.31Issue(6)：145-151,7.DOI:10.13578/j.cnki.issn.1671-1556.20231095
滑坡损毁公路路基重建的治理效果评价
Evaluation of prevention effect of highway subgrade reconstruction damaged by a landslide
摘要
Abstract
Highway in mountainous areas is vulnerable to landslide disasters,which may lead to the damage of subgrade.It is necessary to comprehensively evaluate the prevention and control effect of the treatment project when the subgrade is reconstructed after landslide damage.A reconstruction project of G326 highway damaged by a landslide in Guizhou Province was taken as an example.The landslide deformation and failure process in-duced by heavy rainfall was simulated.The prevention and control effect of different treatment schemes was an-alyzed and evaluated,such as the different prevented schemes of slope cutting,anti-slide pile and pile with pre-stress anchor cable.The results show that the deformation gradually expanded from the front of the landslide near G326 highway,to the head of the landslide with the increase of rainfall,and the plastic state occurred in the whole landslide body on July 8.After the combined treatment of slope cutting and anti-slide pile with pre-stress anchor cable,the maximum displacement of the landslide main area is 3.1 mm,and the maximum is 1.7 mm in the head of the landslide.The structure of anti-slide pile with prestress anchor cable optimizes the stress state of the landslide and makes the deformation of the whole landslide in a controllable and acceptable range,which ensures the safety of highway subgrade reconstruction.This research has some reference value for the highway reconstruction after a landslide.关键词
滑坡灾害/滑坡损毁路基/路基重建/锚拉桩/治理效果评价Key words
landslide disaster/highway subgrade damaged by landslide/subgrade reconstruction/anti-slide pile with prestress anchor cable/evaluation of prevention effect分类
资源环境引用本文复制引用
张亚,刘仕洪,雷青,姜波,郭华江..滑坡损毁公路路基重建的治理效果评价[J].安全与环境工程,2024,31(6):145-151,7.基金项目
国家自然科学基金项目(42077239) （42077239）
