摘要
喀斯特地貌中形成的溶腔,溶腔中充满淤泥孤石,造成隧道冒顶。本文介绍采用管棚、小导管预注浆加固围岩,双侧壁导坑法掘进通过溶腔段的方法。
The cavern formed in karst landscape filled with mud boulders causing tunnel roof fall. This article describes the method that using pipe roof and a small catheter for pre-grouting rock, double side drift method for tunneling through the cavern section.
出处
《价值工程》
2014年第9期109-110,共2页
Value Engineering
关键词
喀斯特地貌
隧道冒顶
管棚
超前小导管
双侧壁导坑法
karst landscape
tunnel roof fall
pipe roof
advanced small pipe
double side drift method
