谈Ⅳ、Ⅴ级围岩涌水情况下的开挖方法

Sketchy Discussion on Excavation Method of Sort Ⅳ,Ⅴ Surrounding Rocks with Water Yield

针对赣龙铁路金华山隧道进口为Ⅳ、Ⅴ级围岩,且涌水量较大的特点,提出隧道在Ⅳ、Ⅴ级围岩涌水情况下的开挖方法,介绍其工艺流程。

To the characteristics of Jinhuashan Tunnel entrance of Ganlong Railway with Sort Ⅳ,Ⅴ surrounding rocks and large water yield, putting forward the excavation method of tunnel with sort Ⅳ,Ⅴ surrounding rocks and water yield, and introducing the technological chart.