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高速公路在修建之时要尽量减少弯道和爬高,就会遇沟搭桥遇山钻洞。因此打建许多山岭隧道,时常会遇到裂隙水较多的地段,如果排水不科学就会沿着围岩而渗出,不但影响到施工的环境,还会降低排水效果为施工带来障碍。本文根据某高速公路中的山岭隧道排水设计,总结出以排为主,防、堵相结合的排水措施。
When the highway is being constructed, it is necessary to try to reduce the curve and the height of the climb, and when the highway is built, the mountain can be drilled through the ditch. Therefore, building a lot of mountain tunnels often encounter lots of fractured water. If drainage is not scientific, it will ooze along the surrounding rock, which will not only affect the construction environment, but also reduce the drainage effect and bring obstacles to the construction. Based on the drainage design of a mountain tunnel in an expressway, this paper summarizes the drainage measures that combine drainage, prevention and plugging together.