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掌握浅埋深短长壁工作面矿压显现特征,采用现场观测和数值模拟方法对荣达煤矿试采工作面进行矿压显现特征研究,分析了浅埋深短长壁工作面矿压显现规律及覆岩结构特征.研究结果表明:由于采高及工作面长度等开采参数较小,短长壁工作面开采后对顶板岩层的破坏程度有限,基岩层并未全部断裂至地表,上覆岩层中仍然可以形成稳定的承载结构.
The characteristics of strata pressure of shallow long and short longwall mining face are grasped. The on-site observation and numerical simulation method are used to study the strata pressure characteristics of the trial mining face in Rongda coal mine. And overburden structural characteristics.The results show that due to the small mining parameters such as mining height and working face length, the damage to roof rock strata after the mining of short-longwall face is limited, and all the bedrock layers are not broken to the surface and overlying strata Can still form a stable bearing structure.