To study the mining-induced failure depth of floor rocks in a fully-mechanized mining caving field affected by different coal seam pitches, mining face lengths, burial depths and aquifer water pressur
ObjectiveHydraulic fracturing of coal seam floors represents an important technical approach to mitigating damage to the floor rock masses through proactive pressure relief and to improving seepage pa
To solve the serious problem of floor heave in weakly cemented layered floor, taking the auxiliary transportation roadway of the Talahao coal mine working face as the engineering background,by combini