摘要
随着开采深度的不断增加 ,巷道的支护问题日趋严重 ,单一的支护形式难于控制巷道的稳定 ,必须采用各种复合支护方式来控制深井巷道的稳定。对于倾斜岩层 ,巷道的底板一般呈坡状鼓起 ,上帮底的底鼓量较大 ,下帮底的底鼓量较小。采用帮底锚杆并在巷道上帮底角孔底爆破卸压的复合支护 ,可以有效地控制巷道的底鼓 ,达到巷道围岩的稳定。
With the mining depth steadily increased, the problem in the mine roadway become more serious. It is very difficult to keep the roadway in stable with a single support method. Different compound support methods shall be used to keep the deep roadway in stable. In the tilted strata, the roadway floor will have wave heaves. The compound support with bolts inside and bottom of the floor and destressed blasting in the heave side can effectively control the floor heave and keep the surrounding rock in stable.
出处
《煤炭科学技术》
CAS
北大核心
2001年第8期24-26,30,共4页
Coal Science and Technology
