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结合某矿的具体条件,通过现场观测方法,分析研究了极近距离煤层开采条件下工作面顶板的来压显现规律,包括覆岩的冒落特征、老顶来压步距、来压强度及其影响程度和煤岩稳定性等,为极近距离煤层开采采场顶板管理和巷道围岩控制提供了依据。
Combining with the specific conditions of a mine, through the field observation method, the law of occurrence of the pressure on the roof of the working face under the conditions of extremely close coal seam mining was analyzed, including the caving characteristics of the overburden, the pressure step- Its degree of influence and the stability of coal and rock provide the basis for the roof management and roadway surrounding rock control in mining area with very close distance.