摘要
某引水隧洞主要采用双护盾式TBM施工。在穿越高埋深的区域性断裂带时,采用绕行导坑人工钻爆法施工。本文对采用绕行导坑的围岩变形情况进行分析,指出在隧洞开挖过程中围岩变形的时间效应,为修改设计与指导施工提供理论依据。
A diversion tunnel uses double shield TBM construction.It uses round pilot tunnel artificial drilling method when pass through regional fracture zone.This paper analyzes the surrounding rock deformation,points out the time effect to provide theory basis for revised design and construction direction.
出处
《林业科技情报》
2012年第3期144-145,148,共3页
Forestry Science and Technology Information
关键词
回归分析
变形观测
绕行导坑
regression analysis
deformation observation
round pilot tunnel
