中风化泥岩地层联络通道快速开挖施工技术  

Rapid Excavation Construction Technology for Connected Aisle in Moderately Weathered Mudstone Strata

作　　者：彭飞 郑雪梅 杨松霖 寇明富 PENG Fei;ZHENG Xue-mei;YANG Song-lin;KOU Ming-fu(POWERCHINA SINOHYDRO ENGINEERING BUREAU 14 CO.,LTD.,Kunming 650041,China)

机构地区：[1]中国水利水电第十四工程局有限公司,云南昆明650041

出　　处：《云南水力发电》2023年第9期210-212,共3页Yunnan Water Power

摘　　要：联络通道作为连接两个主隧洞的重要构成部分,起着关键的作用,是一条横向逃生通道,起到安全疏散人员、隧道排水及消防等应急作用,是市政交通区间隧道应急防灾处置的重要设施。在联通通道施工中,具有断面小、长度短、工序多、作业空间狭小、环境复杂及安全要求高等特点和难点。在实际的施工过程中,往往受地质、安全、成本、周边环境及工期等外界条件的制约,联络通道选取的开挖工艺也不尽相同,如何能够安全、快捷、经济及合理地进行联络通道施工同时尽快为后续工程施工提供作业空间,成为联络通道施工的关键和重中之重。通过介绍地铁盾构低瓦斯隧洞区间联络通道特定环境下的采用小型挖机+破碎锤施工工艺,总结相应有效的技术措施。The communication channel plays a crucial role as an important component connecting the two main tunnels.It is a horizontal escape passage that plays an emergency role in safely evacuating personnel,tunnel drainage,and fire protection.It is an important facility for emergency disaster prevention and disposal of municipal transportation section tunnels.In the construction of connecting channels,there are characteristics and difficulties such as small cross-section,short length,multiple processes,narrow working space,complex environment,and high safety requirements.In the actual construction process,it is often constrained by external conditions such as geology,safety,cost,surrounding environment,and construction period,and the excavation techniques used for connecting channels are also different.How to carry out the construction of the connecting passage safely,quickly,economically,and reasonably while providing working space for subsequent engineering construction as soon as possible has become the key and top priority of the connecting passage construction.This paper introduces the construction process of using small excavators and crushing hammers in the specific environment of the low gas tunnel section connecting passage of subway shield tunneling,and summarizes the corresponding effective technical measures.

关 键 词：联络通道 中风化泥岩 快速 开挖施工技术 

分 类 号：U455.4[建筑科学—桥梁与隧道工程]