地铁隧道盾构区间联络通道弱爆破开挖技术  

Weak blasting excavation technology for connecting passage of metro tunnel shield section

作　　者：赵军 王海亮[2] 肖景鑫 石晨晨 Zhao Jun;Wang Hailiang;Xiao Jingxin;Shi Chenchen(Chengdu New Technology Blasting Engineering Co.,Ltd.of China Railway No.2 Group,Chengdu 610031,China;College of Safety and Environmental Engineering,Shandong University of Science and Technology,Qingdao 266590,China)

机构地区：[1]中铁二局集团成都新技术爆破工程有限公司,四川成都610031 [2]山东科技大学安全与环境工程学院,山东青岛266590

出　　处：《山西建筑》2021年第10期130-132,共3页Shanxi Architecture

摘　　要：针对中硬岩层盾构区间联络通道爆破施工开挖时,为避免联络通道爆破损害临近主线隧道衬砌结构,总结了青岛地铁8号线大青区间采用矿山法爆破开挖盾构区间联络通道的工程实践,提出了保护管片的盾构区间联络通道弱爆破开挖施工技术,以期为今后类似工程提供借鉴参考。Aiming at the blasting construction and excavation of the connecting passage between the shield tunnels in the hard rock layer,in order to avoid the blasting of the connecting passage damaging the lining structure of the tunnel adjacent to the main line,the engineering practice of the Qingdao Metro Line 8 using the mining method to excavate the connecting passage of the shield section is summarized.An excavation technique for weak blasting construction of connecting passages between shield tunnels to protect segments is proposed,in order to provide a reference for similar projects in the future.

关 键 词：盾构隧道 联络通道 爆破 管片 

分 类 号：U455.6[建筑科学—桥梁与隧道工程]