巷道在强风化泥灰岩中的施工技术

西山煤电燃料运输工程东曲段穿过汾河河床,布置在强风化奥陶系峰峰组泥灰岩中,该岩层属严重地质灾害地层,岩层松软,遇水软化成泥糊状,且涌水量大,工作面常出现泥石流,施工时先后发生三次大面积坍塌,施工困难,安全、质量、进度得不到保正。采用新的施工技术、改变施工方案,修改设计支护形式,顺利通过并取得了质量好、速度快的效果。

Roadway Construction Technology in Severely-weathered Rock at Roadway

In the east section of fuel transportation engineering of Xishan Coal Industry Co.,the rock stratum belongs to serious geology disaster one,where rock stratum is soft and becomes mud paste when meeting water with debris in the face.3 large-scaled collapses have occurred in the construction,which cannot ensure the safety,quality and construction progress.Good quality and fast speed have been obtained after using new construction technique,changing construction plan and modifying the design of supporting.