西山坪隧道初期支护条件下围岩变形特征研究  

Study on Surrounding Rock Deformation Features of The Xishanping Tunnel Under Primary Supports

作　　者：李晓红[1] 靳晓光[1] 亢会明[1] 顾义磊[1] 杨新华[1] 

机构地区：[1]重庆大学建筑工程学院,重庆400044

出　　处：《西部探矿工程》2001年第2期69-71,共3页West-China Exploration Engineering

基　　金：国家杰出青年基金(59725410);自然科学基金(50074035)项目资助。

摘　　要：分析了隧道围岩在不同初期支护条件下的变形特征及围岩变形与岩石强度、岩体结构、围岩类别及断面形状和进尺等因素的相关性 ,为后期初期支护。Combined with the surrounding rock deformation monitoring practice of Yu-He Express Xishanpin tunnel in constructing process, the tunnel surrounding rock deformation features under the variabillity primary support works and the corrective factors between the features and rock strength, structure of rock mass, surrounding rock class, the shape of section and digging footage etal. were analysed. This study provided information immediately to laterprimary and quadratic supports as well as support structure majorization.

关 键 词：西山坪隧道 初期支护 围岩变形 岩石强度 岩体结构 围岩 支护结构 

分 类 号：U452.12[建筑科学—桥梁与隧道工程]