摘要
针对复杂地质造成的隧道坍方灾害,文章结合沙厂2#隧道坍方处理施工详细介绍了采用大管棚、超前小导管、径向小导管注浆固结坍体,然后进行三台阶法开挖、衬砌紧跟的坍方处理施工技术方案。
Against the tunnel collapse disaster caused by complex geology, combined with the treatment construction of the 2# tunnel of sand plant, this paper introduces in detail the construction technical scheme of the collapse treatment that injects grouting with big pipeline shed,leading small pipe and radial-direction small pipe to consolidate collapse body,then excavates with three steps method and lining follows closely.
出处
《企业技术开发》
2010年第12期57-60,共4页
Technological Development of Enterprise
关键词
隧道
坍方处理
注浆
三台阶法
tunnel
the treatment of collapse
grouting
three steps method
