拉林铁路藏木特大桥后锚基坑边坡防护简介  

Slope Protection Design of Foundation pit of Zangmu Super Major bridge of Lhasa to Linzhi Railway

作　　者：权循亮 孙晓[2] QUAN Xunliang;SUN Xiao(China Railway No.9 Group Co.,Ltd.,Shenyang 11000.China;China Railway E17-uan Engineering Group Co.,Ltd.,Chengdu 610031,China)

机构地区：[1]中铁九局集团有限公司,沈阳110000 [2]中铁二院工程集团有限责任公司,成都610031

出　　处：《高速铁路技术》2018年第4期81-83,共3页High Speed Railway Technology

摘　　要：本文以拉林铁路藏木特大桥后锚基坑边坡为研究对象,采用折线滑面法对边坡稳定性进行计算分析,根据计算结果进行锚索布置设计,最终采用以锚索地梁为主,主动防护网+被动防护网相结合的防护措施对开挖边坡进行防护。并在边坡施工过程中布设现场监测系统对边坡进行变形监测,在保证边坡稳定的同时确保了施工安全,可为类似边坡治理工程提供参考。Taken foundation pit slope of Zangmu super major bridge of Lhasa – Linzhi railway as the object of study,the stability of the slope is calculated and analyzed by the method of folding line slide surface. According to the results,protection measures（ anchor beam as the main,with combination of active protection net and passive protection net） are adopted to protect the excavation slope. Field monitoring system is installed during slope construction to monitor the deformation of slope,which guarantees the slope stability and construction safety. It also provides references for similar engineering projects.

关 键 词：卸荷裂隙 锚索地梁 基坑开挖 边坡防护 稳定性分析 

分 类 号：U213.13[交通运输工程—道路与铁道工程]