加泥式土压平衡盾构机在成都砂卵石地层中应用的几个关键性问题  

Key Issues of Applying Mudding-type EPB Shields to Sandy Cobble Ground in Chengdu,China

作　　者：何川[1] 晏启祥[1] 

机构地区：[1]西南交通大学地下工程系,成都610031

出　　处：《隧道建设》2007年第6期4-6,29,共4页Tunnel Construction

基　　金：国家高技术研究发展专项(863计划)经费资助项目(课题编号:2006AA11Z116)

摘　　要：成都地铁一号线一期工程区间隧道大多通过富水砂卵石地层,且含有少量大粒径漂石。结合地层这一特点,对成都地铁采用加泥式土压平衡盾构施工的几个关键问题——大漂石处理方案、刀盘刀具的耐磨性、喷涌防治等进行了分析和探讨。The first stage project of line 1 of Chengdu Metro mostly passes through water-rich sandy cobble ground, which contains a small amount of large boulders. In the paper, the authors make analysis and discussions on several key issues related to the application of mudding-type EPB shields to sandy cobble ground in Chengdu, which includes the treatment of the large boulders, the wearing of the cutter heads and the cutting tools and the prevention and control of mud bursting.

关 键 词：加泥式土压平衡盾构 砂卵石地层 喷涌 

分 类 号：U455.39[建筑科学—桥梁与隧道工程]