高水压大仰角钻孔施工的尝试

Trying on drilling with high water level and large elevation angle

针对新集二矿开采复杂的地质及水文地质条件 ,提出了施工大仰角钻孔的可行性 ,并逐步实施 ,对施工中主要的安全技术措施进行了阐述 。

Directing to the complicated geology and hydrogeology conditions in Xinji,the reliability of large elevation angle drilling is put forward.And main safety measures in construction are expounded.It has made good technology and economic benefit.