中条山隧道洞口浅埋黄土段大管棚超前支护施工

On advanced support construction of large pile-shed at shallow loess section at mouth of tunnel on Zhongtiao mountain

以中条山隧道浅埋进洞施工为研究对象,论述了管棚超前支护施工技术的施工工艺,通过对隧道施工中的监控测量结果分析,验证了大管棚超前支护应用在浅埋黄土隧道进洞施工支护效果良好。

Taking the shallow entering tunnel of Zhongtiao mountain tunnel as the research object,the paper indicates the construction craft of the pipe-shed＇s advanced support construction technique,analyzes the measurement results in the tunnel construction,and proves the support effect of the large pipe-shed＇s advanced support is better.