中国泥水盾构使用现状及若干问题  

The Current Status and Some Problems of Slurry Shield in China

作　　者：朱伟[1] 钱勇进 闵凡路[2,3] 王璐 王超[2,3] 徐超[2,3] 胡涧楠[2,3] ZHU Wei;QIAN Yongjin;MIN Fanlu;WANG Lu;WANG Chao;XU Chao;HU Jiannan(School of environment, Hohai University, Nanjing 210098, China;Key Laboratory of Geomechanics and Embankment Engineering, HohaiUniversity, Ministry of Education, Nanjing 210098, China;College of Civil and Transportation Engineering, Hohai University, Nanjing 210098, China)

机构地区：[1]河海大学环境学院,江苏南京210098 [2]河海大学岩土力学与堤坝工程教育部重点实验室,江苏南京210098 [3]河海大学土木与交通学院,江苏南京210098

出　　处：《隧道建设（中英文）》2019年第5期724-735,共12页Tunnel Construction

基　　金：国家重点基础研究发展计划("973"计划)项目(2015CB057803)

摘　　要：近十年来,泥水盾构隧道技术在我国应用越来越广泛,已成为大型越江海隧道和城市地铁建设不可或缺的关键技术。我国的泥水盾构技术,尤其是大直径泥水盾构工程技术不断成熟,工程的建设量和大直径盾构数量已居世界前列;然而,在泥水盾构技术快速发展中出现一些问题。在收集我国泥水盾构施工技术使用现状的同时,对施工中遇到的复杂地层、泥水舱构造、刀具过量磨损、频繁开舱作业、泥浆材料的使用及处理、盾构重复使用等特点进行梳理。结合代表性的泥水盾构工程实例,深入分析施工遇到的刀具磨损、开舱检修关键技术、泥膜闭气开挖面稳定、泥浆携渣及处理等问题,总结已有的施工经验及技术特点,明确我国泥水盾构技术发展的方向,以期推动世界泥水盾构技术的发展。For recent ten years, the slurry shield tunnelling technology has been widely used in major underneath river/ocean tunnels and urban metro constructions in China. With the gradual maturity of the slurry shield technology, especially the large-diameter slurry shield technology, the numbers of projects and shield machines have been among the highest in the world. However, great challenges arise during the construction of the slurry shield projects under complex geological conditions, such as the stability of the excavation face, cutting tool abrasion, opening the chamber and repairing the machine, slurry circulation with slag, and remanufacturing of the shield. Therefore, it is necessary to investigate the development of slurry shield construction technology in China. Based on typical cases of slurry shield projects, this study analysed the main problems of the slurry shield in the construction process and summarised the current experiences and key technologies. Considering the actual situation of the slurry shield technology, this study clarifies its development direction in China, which is significant to promote the development of the slurry shield technology in the world.

关 键 词：泥水盾构 开挖面稳定 开舱措施 刀具磨损 盾构重复使用 泥浆处理 

分 类 号：U455.43[建筑科学—桥梁与隧道工程]