隧道岩溶病害处理方法与实例分析

岩溶是隧道施工中经常遇到的一种地质现象,因受其特殊的地质构造影响,它容易导致开挖面涌水、突泥,围岩及支护结构变形、开裂、坍塌,影响施工进度,危及施工安全,破坏周围环境。因此,为提高岩溶隧道的修建水平,保护岩溶地区的人文环境,岩溶隧道的病害机理及其防治已引起人们的普遍关注。文章在概述岩溶对隧道的危害性和隧道岩溶病害处理原则的基础上,分析了施工超前地质预报对岩溶病害处理的重要性,探讨了隧道中不同类型的岩溶的处理方法和施工工艺,最后介绍了一个工程实例,以期能为类似隧道的岩溶病害处置提供借鉴。

The treatment method for the diseases of tunnel karst and case analysis

Karst is a geological phenomenon that is usually encountered in tunnel construction, because of the influence of the special geological structure, it could lead to water spraying and mud flowing from excavation face and deformation, cracking and collapse of ground and lining. Therefore, it will affect the construction speed, jeopardize the safety of construction and spoil the environment. In order to improve the karst tunnel construction technology and to protect the environment of the karst area, more and more people have paid attention to the mechanism and control of the diseases in karst tunnels. Based on the harmfulness analysis of karst to the tunnels and the principle of treatment for the karst, the importance analysis of geological advance prediction is presented and then the methods of dealing with the diseases of karst and construction technology are discussed for different type of karst in this paper. Finally,the engineering practice and corresponding engineering measures is introduced, which can provide reference for the construction of similar tunnels.