市域铁路矿山法隧道超浅埋段施工工法  

Construction Method of Ultra Shallow Buried Section of Mining Tunnel of Municipal Railway

作　　者：钱栋栋 王礼武 韩君 李明 QIAN Dong-dong;WANG Li-wu;HAN Jun;LI Ming(CRRC Construction Engineering Co.,Ltd.,Beijing 100078,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,无锡214101

出　　处：《价值工程》2022年第28期56-58,共3页Value Engineering

摘　　要：以台州市域铁路S1线一期工程羊头山隧道超浅埋段施工为背景,山岭隧道内开挖施工使用三台阶临时仰拱的开挖方法,辅助以超前预注浆及洞内超前管棚支护等开挖施工方式,大大降低了隧道埋深超浅、围岩等级低地层破碎、地表水较丰富等问题造成的围岩失稳、坍塌冒顶等安全风险,可为同类工程施工提供借鉴。Taking the construction of the ultra-shallow buried section of the Yangtoushan Tunnel in the phase I of the S1 line of Taizhou Municipal Railway as the background,the excavation method of the three-step temporary inverted arch is used in the excavation of the mountain tunnel,assisted with excavation construction methods such as advanced pre-grouting and advanced pipe shed support in the cave,which greatly reduced the safety risks of surrounding rock instability,collapse and roofing caused by problems such as ultra-shallow tunnel burial depth,low-grade surrounding rock formation,and abundant surface water,which can provide reference for similar projects.

关 键 词：矿山法隧道 超浅埋段 临时仰拱 管棚支护 超前预注浆 

分 类 号：U455.4[建筑科学—桥梁与隧道工程]