高地应力软岩隧道围岩大变形控制关键技术探究  

Exploration of Key Technology of Large Deformation Control of Soft Rock Tunnel

作　　者：章海东 ZHAGN Hai-dong(Beijing Tiecheng Engineering Consulting Co.Ltd.,Beijing 100000,China)

机构地区：[1]北京铁城工程咨询有限公司,北京100000

出　　处：《工程建设与设计》2025年第6期38-40,共3页Construction & Design for Engineering

摘　　要：在掌握高地应力作用下软岩隧道变形机理的基础上,从侧压力系数、岩石性质、开挖方法几个方面分析了影响围岩变形的主要因素。同时,总结了优化开挖方法、合理预留变形量、联合初期支护、支护加固的高地应力软岩隧道围岩大变形控制关键技术,以有效控制高地应力软岩隧道围岩的大变形。On the basis of mastering the deformation mechanism of soft rock tunnel under high ground stress,the main factors affecting the deformation of surrounding rock are analyzed from the aspects of side pressure coefficient,rock properties and excavation methods.At the same time,the key techniques for controlling large deformation of surrounding rock of high ground stress soft rock tunnel are summarized,which are optimized excavation method,reasonable reservation of deformation amount,combined initial support and support reinforcement.

关 键 词：高地应力 软岩大变形 变形控制 

分 类 号：U451.2[建筑科学—桥梁与隧道工程]