以石圪台煤矿地质资料为背景,通过相似模拟试验,制作物理模型,通过分析开采中支架的力学特征,对石圪台煤矿2~(-2)煤层开采工作面的矿压显现规律进行研究。研究表明:在开采过程中矿压显现显著,额定支架工作阻力18 000 k N能够满足生产需要;顶板初次来压步距为32 m,周期来压步距为10.5 m;动压系数为1.35,最大动压系数为1.45。 Based on the geological data of Shitutai Coal Mine, the physical model was made through similar simulation tests. The strata behaviors of 2 ~ (-2) coal seam mining face in Shitutai Coal Mine were studied by analyzing the mechanical characteristics of the mining support. . The results show that the mine pressure is significant during the mining process. The rated working resistance of the support is 18 000 kN, which can meet the production needs. The initial pressure step of roof is 32 m, the pressure step is 10.5 m, the dynamic pressure coefficient is 1.35, The maximum dynamic pressure coefficient of 1.45.