盾构隧道开舱技术现状及实例  

Technical Status and Case Study on Intervention in the Shield Chamber

作　　者：朱伟[1,2] 闵凡路[1,2] 姚占虎 王睿[2] 魏代伟[2] 姜腾[2] 

机构地区：[1]河海大学岩土力学与堤坝工程教育部重点实验室,南京210098 [2]河海大学土木与交通学院,南京210098 [3]中交隧道工程局有限公司,北京100088

出　　处：《现代隧道技术》2015年第1期9-18,共10页Modern Tunnelling Technology

基　　金：国家重点基础研究发展计划(973计划)(2015CB057803);国家自然科学基金项目(51408191/51209142);中国博士后科学基金资助项目(2014M560388)

摘　　要：盾构隧道掘进过程中可能会遇到障碍物或刀盘刀具过量磨损的情况,导致盾构被迫停机,进行开舱处理,因此安全开舱技术极为关键。文章针对此问题,收集已有相关研究资料,对盾构开舱的基本概念和方式进行了总结,分析了常压开舱和带压开舱技术的适用范围和优缺点。结合国内外典型的盾构开舱实例,系统总结了已有的开舱作业经验和技术要点并对我国盾构开舱技术发展进行了展望。Encountering obstacles or excessive cutter wear in shield tunneling often result in shutdown of the shield machine, and intervention techniques are extremely critical. Based on collected documents related to this, this paper summarizes the basic concepts of intervention in the shield chamber and analyzes the application scope as well as the advantages and disadvantages of intervention at atmospheric pressure and pressurized conditions. Combined with typical cases concerning intervention in shield chambers, the experiences and technical key points are systematically summed up and future developments in China regarding interventions in shield chambers are discussed.

关 键 词：盾构隧道 开舱 泥水盾构 开挖面稳定 泥膜 

分 类 号：U455.43[建筑科学—桥梁与隧道工程]