惠宝煤矿副斜井过含水砂层的施工方法

Construction Method of Crossing Water-bearing Sandy Ground in Auxiliary Inclined Shaft in Huibao Colliery

分析了斜井在较长距离含水砂层施工中存在的问题,简述了采用倾斜导向旋喷桩预支护的施工工艺,掘进过程中采用分台阶施工配合井点降水法顺利通过含水砂层的方法,施工过程的安全性得到了提高。

Inclined shaft passes through a long distance of water--bearing sandy ground while in the t paper analyzes various of problems existing in constructions and introduces the construction technique grouting pile pre-- support, sub-- steps construction combined with well point dewatering method cross smoothly water--bearing sandy ground, which improves the safety of construction. opsoil, the of slant jet be used to