监控量测在姜路岭隧道大变形治理中的应用  

Application of Monitoring and Measuring in Large Deformation Treatment of Jiangluling Tunnel

作　　者：程曦[1] 

机构地区：[1]招商局重庆交通科研设计院有限公司,重庆400067

出　　处：《公路交通技术》2016年第6期115-120,共6页Technology of Highway and Transport

摘　　要：姜路岭隧道是青海省共玉高速公路上具有代表性的大变形隧道,施工过程中曾发生过若干次大变形,给施工造成极大困难,也曾一度使施工处于停滞状态。通过现场观察和拱顶下沉、周边收敛等量测,运用换拱、增设临时钢支撑、加强支护参数、增大预留变形量等技术对该隧道大变形段进行处治,获得满意效果。Jiangluling tunnel is a typical large deformed tunnel on Gonghe-Yushu expressway in Qinghai province,there were several big deformations during construction,which caused great difficulty to the construction and once stagnated the construction. Through on-the-spot observation and measurement of arch settlement and peripheral convergence,the author applied technologies such as changing the arch,adding temporary steel support,increasing support parameters,increasing foreseen deformation,etc.,to treat the large deformation of the tunnel,the result is satisfying.

关 键 词：监控量测 多年冻土隧道 炭质页岩 大变形 

分 类 号：U459.2[建筑科学—桥梁与隧道工程]