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本文以现场量测为依据,论述了岩石巷道的锚喷支护受采动影响时,移动支承压力的影响范围、变化规律、围岩松动以及巷道稳定性等。探讨了锚喷支护对采动影响的适应机理。锚喷支护与围岩形成一个具有一定柔性的整体,其对于采动影响比别种支护有较大的适应性。移动支承压力不大时,采用锚喷支护是可行的;移动支承压力较大时,以采用锚网联合支护为主,敷之以喷为好;移动支承压力特大时,一般的锚喷支护难以取得良好的效果,应研究采用与其它支护相结合的方式。
In this paper, based on the field measurements, the influence range, variation regularity, looseness of surrounding rock and roadway stability of rock bolting and shotcreting support affected by mining are discussed. The adaption mechanism of bolt and shotcrete support to mining is discussed. Bolting and shotcrete support and surrounding rock to form a whole with a certain flexibility, its impact on mining more than other types of support greater adaptability. When the pressure of mobile support is not large, it is feasible to adopt anchor and shotcrete support. When the pressure of mobile support is large, joint support is mainly used for anchor net and the spray is better. When the pressure of mobile support is very large, Support is difficult to achieve good results, should be studied and used in conjunction with other support methods.