地质复杂引水隧洞超挖控制

Over-excavation Control of Complex Geological Diversion Tunnel

针对滇中引水香炉山隧洞复杂地质条件出现的地质超挖,若不加以控制,不断发展和扩大,将会引发不良后果,不仅会加大人力、物力等资源的投入,还会增加施工成本、影响施工工期,所以做好地质超挖防治措施是非常必要的。因此如何充分保证地质复杂引水隧洞在开挖过程中到达围岩自稳不受干扰,同时又节约成本和安全性,已经成为地质复杂引水隧洞建设中待解决的关键问题。

If the geological over-excavation of Xianglushan Tunnel in Yunnan Water Diversion Project is uncontrolled,it will continue to develop and expand,and lead to undesirable consequences.It will not only increase the investment of human and material resources,but also increase the construction cost and affect the construction period.Therefore,it is necessary to do a good job in preventing and controlling geological over-excavation.How to fully ensure that the self-stability of surrounding rocks of complex geological diversion tunnel is not disturbed during excavation,while saving cost and safety has become the key problem to be solved in the construction of complex geological diversion tunnel.