超前小钢管和自进式锚杆超前支护在泥夹石隧洞的应用

Application of steel pipes and automatic anchor pole in the tunnel with sandwich

介绍在引水隧洞黄泥夹石段不良地质情况时,采用小钢管和自进式锚杆进行超前支护的设计和施工方法,在施工工艺、参数和施工过程进行了具体介绍。

This paper introduces crafts and methods of construction, parameters and construction procedure, using design and construction of steel pipes and automatic anchor pole to pre-support, under the bad geology Condition in the segment of the tunnel with sandwich.