市域铁路矿山法隧道燕尾段开挖加固施工工法  

Construction method of excavation and reinforcement of dovetail section of mining tunnel of municipal railway

作　　者：钱栋栋 王礼武 董向南 QIAN Dongdong;WANG Liwu;DONG Xiangnan(CRRC Construction Engineering Co.,Ltd.,Beijing 10007,China;Jiangsu CRRC Urban Development Co.,Ltd.,Wuxi 214101,China)

机构地区：[1]中车建设工程有限公司,北京100078 [2]江苏中车城市发展有限公司,江苏无锡214101

出　　处：《中国高新科技》2022年第12期82-84,共3页

摘　　要：文章以台州市域铁路S1线一期工程羊头山隧道燕尾段隧道施工为背景,针对燕尾段小净距隧道中间岩柱体厚度远小于普通分离式隧道、围岩变形和支护结构受力较为复杂等问题,对中间岩柱体稳定性的不利影响,提出了一种适用于市域铁路矿山法隧道小净距段开挖的施工工法,为类似工程施工提供借鉴.Taking the tunnel construction of Yanwei section of Yangtoushan tunnel of Taizhou City railway line SI phase I project as the background,aiming at the adverse effects on the stability of the middle rock column caused by the problems such as the thickness of the middle rock column of the small clear distance tunnel in Yanwei section is much smaller than that of the ordinary separated tunnel,the deformation of surrounding rock and the complex stress of supporting structure.This paper puts forward a construction method suitable for the excavation of small clear distance section of mining tunnel of Municipal Railway,which provides a reference for the construction of similar projects.

关 键 词：矿山法隧道 燕尾段 小净距 中间岩柱体 对拉螺杆 超前预注浆 

分 类 号：U457[建筑科学—桥梁与隧道工程]