摘要
介绍了姚桥煤矿煤巷实施锚网支护出现断锚杆、顶板网兜、撕裂钢带、局部巷道出现变形严重甚至冒顶等现象,经现场分析采取了优化和改进措施。
An introduced is made in the paper tothe problems encountered in the supporting of the coal roadway at depth at Yaoqiao Coal Mine, such as breaking of bolts, roof sagging, tear of steel band, severe deformation of roadway at local places and even roof caving. Through field analysis of the phenomena experienced, optimization and improvement measures are taken
出处
《水力采煤与管道运输》
2008年第1期4-6,共3页
Hydraulic Coal Mining & Pipeline Transportation
