摘要
针对浅埋软岩隧道常发生的坍塌冒顶灾害,本研究从工程地质条件及施工过程中出现的问题分析坍塌冒顶的原因,得知坍塌冒顶的发生主要与围岩失去自稳能力和施工中的支护不当、支护失效有关。同时根据坍塌主要成因,基于常见的台阶法、中隔壁法和双侧壁导坑法进行施工过程要点优化,总结隧道坍塌预防方法。对于已发生冒顶的情况,分别从地表和地下处治这两方面进行冒顶处治处理。本研究以期为类似工程提供借鉴。
In view of the frequent collapse and roof fall disasters in shallow buried soft rock tunnels,the main causes of collapse and roof fall are analyzed from aspects such as engineering geological conditions and problems encountered during construction.It is found that the occurrence of collapse and roof fall is mainly related to the loss of self stability of surrounding rock,improper support during construction,and support failure.At the same time,according to the main causes of collapse,the key points of the construction process are optimized based on the common bench method,middle-wall method,and glass method,and the prevention methods for tunnel collapse are summarized.For the situation where roof fall has occurred,the treatment measures for roof fall are sorted out from two aspects:surface treatment and underground treatment.Provide experience for the prevention and treatment of collapse and roof fall in the subsequent construction of shallow buried soft rock tunnels.
作者
董晨阳
高月圆
崔健
Dong Chen-yang;Gao Yue-yuan;Cui Jian
出处
《建筑技术开发》
2023年第10期72-74,共3页
Building Technology Development
关键词
浅埋软岩隧道
冒顶
坍塌
治理措施
soft and shallow buried tunnel
roof fall
collapse
treatment measures
