某高速公路深路堑滑坡应急抢险和永久加固技术研究  

Study on emergency rescue and permanentreinforcement technology of deep cut landslide of an expressway

作　　者：刘洋 龚睿 Liu Yang;Gong Rui(Sichuan Highway Planning,Survey,Design and Research Institute Ltd.,Chengdu Sichuan 610041,China)

机构地区：[1]四川省公路规划勘察设计研究院有限公司,四川成都610041

出　　处：《山西建筑》2024年第8期132-135,共4页Shanxi Architecture

基　　金：四川省交通运输科技项目(20220026)。

摘　　要：2014年10月,G5京昆高速公路雅安—西昌段K1982+040—K1982+240段右侧深路堑发生滑坡灾害,对高速公路安全构成了巨大威胁。为防止道路中断,选取了钢管桩桩基锚杆挡墙为主的应急抢险处治措施方案,能较好抵挡水平推力,且该措施施工快捷,能有效、快速起到应急抢险的目的。随后通过工程地质勘察查明了滑坡特征和形成原因,该滑坡属中型中层牵引式滑坡,路堑开挖和大气降水是滑坡形成的主要原因。滑坡前4次滑塌皆采用清方+坡面防护+护脚墙为主的处治措施方案,未能彻底根治滑坡灾害,此次选取了抗滑桩为主的永久加固处治措施方案,应用结果表明处治效果良好。In October 2014,a landslide G5 Beijing-Kunming Expressway on the deep right side of the Ya’an-Xichang K1982+040—K1982+240 section of the G5 expressway,posing a huge threat to highway safety.In order to prevent the interruption of the road,the emergency measures of the anchor retaining wall of the steel pipe pile foundation are selected,which can better resist the horizontal thrust,and the construction of the measures is fast,the utility model can effectively and quickly achieve the purpose of emergency rescue.The characteristics and causes of the landslide are found out through engineering geological investig ation.The landslide is a medium-sized middle-level traction landslide.The four previous landslides were all treated by clear+slope protection+footwall,and the landslide disaster could not be completely cured.This time,the permanent reinforcement treatment scheme of anti-slide pile was selected.The application results show that the treatment effect is good.

关 键 词：深路堑滑坡 牵引式滑坡 应急抢险 工程地质勘察 加固措施 抗滑桩 

分 类 号：TU472[建筑科学—结构工程]