哈大客运专线浅埋超大断面隧道塌方处理工法

Investigation on low-burying super-section tunnel callapse of Ha-Da passenger train line

结合具体工程实例,分析了浅埋超大高速铁路隧道坍体的情况及原因,介绍了哈大客运专线台山隧道的塌方处理方案及措施,重点就CRD工法施工的浅埋超大断面隧道坍体开挖与支护进行了探讨,积累了同类隧道塌方处理经验,总结出一套行之有效既安全又经济的塌方处理方法。

Combined with the concrete project example, the condition and causes of Low-burying super-section tunnel callapse are analysed and the solution of low-burying super-section tunnel callapse of Ha-Da passenger train line is also introduced in the thesis. With the key of CRD application on low-burying super-section tunnel callapse excavation and support, It accumulates the same callapse experience and summarizes a feasible solution for the landslide, which assures the the safty of constucters and guarantees the structure security after cal/apse, moreover, it save the time for dealing the callapse and be worth recommending for adoption in the tunnel callapse.