兰渝铁路木寨岭隧道炭质板岩段应力控制试验研究  

Experimental Study on Stress Control in Carbonaceous Slate Section of Muzhailing Tunnel on Lanzhou-Chongqing Railway

作　　者：邹翀[1] 王超朋[2] 张文新[1] 高攀[1] 

机构地区：[1]中铁隧道集团科研所,河南洛阳471009 [2]河南理工大学,河南焦作454003

出　　处：《隧道建设》2010年第2期120-124,共5页Tunnel Construction

摘　　要：结合在建的兰渝铁路木寨岭隧道炭质板岩段实际情况,寻找解决控制高地应力大变形的方法,通过在木寨岭隧道7#斜井进行超前大钻孔、超前导洞应力控制方法的现场试验,根据与原施工段监控量测结果进行对比,二者虽对变形的控制起到一定作用,但就其可行性而言,还需继续研究和完善。Muzhailing tunnel on Lanzhou-Chongqing railway passes through carbonaceous slate ground, where large deformation occurs. In order to establish the methods to control the large deformation, advance large-diameter boreholes and pilot heading are installed in No. 7 inclined shaft of Muzhailing tunnel so as to perform stress control tests. Comparison is made between the monitoring data in the test section and those in the original section. The test indicates that advance large-diameter boreholes and pilot heading are helpful to the control of the deformation, but further study is needed to improve the feasibility of the deformation control method.

关 键 词：隧道 炭质板岩 大变形 应力控制 超前导洞 大钻孔 

分 类 号：U456[建筑科学—桥梁与隧道工程]