高突地区煤巷锚杆支护实践

介绍了在有煤与瓦斯突出危险的煤巷采用锚杆支护时采取的几项措施 ,提出高突地区煤巷锚杆支护在采取防治煤与瓦斯突出措施时 ,不宜单独采用超前排放钻孔防突措施 ,宜采用掘进工作面预抽或边掘边抽与超前排放钻孔相结合的防突措施 ,且钻场要错口开设 ,钻场处的锚杆支护参数要做适当调整 ,对突出点附近的巷帮也要做妥善处理 .

Bolting support practice in the roadways of the high-gas burst areas

It has introduced some measurements by roof bolting supports when there is gas burst in the roadways. some preventing and controlling measurements should be performed only on the condition that the advanced drainage drilling holes should not be individually used. It has stressed that a combination performance of pre_drainage or draining while driving and the advanced drainage drilling holes should be done at the same time. It should have the interlocking holes and the roof bolting suppont parameters should be adjusted in the drilling sites. The roadway walls near the burst should be carefully dealt with. These have provided some sucessful experiment for the roof bolting supports in the roadways of high_burst areas.