反井钻机在关州电站压力管道工程中的应用

Application of raise-bore machine in penstock project of Guanzhou power station

反井钻机施工导井具有安全性好,工作性能高,导井开挖质量好等优点,近年来越来越多的用于水利水电工程施工中。文中以关州电站压力管道斜井开挖为例,介绍了在岩层为二云片岩的斜井开挖中利用反井钻机开挖导井的施工工艺及取得的效果。

The construction of pilot well with the raise-bore machine is applied more and more in water con servancy and hydropower project construction with the advantages of high security, high operation performance and good quality in pilot shaft excavation. Taking the inclined shaft excavation of penstock for Guanzhou power station as an example, the paper introduces the construction technology and effect of the pilot shaft excavation using raise-bore machine for inclined shaft excavation in two-mica schist layer.