【摘要】 采用岩石破裂与失稳分析系统(RFPA),对不同构造介质条件下煤矿区的采动损害分别进行数值试验。试验结果表明,在同样强度的开采下,坚硬覆岩具有较强的抗扰动能力,地下开采对地表损害相对较弱;而软弱覆岩抗扰动能力较弱,开采比较容易引起地表损害。结论对于进一步研究煤矿区环境灾害的发生和发展规律及有效地控制煤矿区的环境灾害有一定的理论指导意义。更多还原

【Abstract】 The results from numerical tests of ground damage related to coal mining under different structural medium with Rock Failure Process Analysis(RFPA) system,show that under the mining of the same intensity,coalmining-induced subsidence is relatively weaker because hard cover rocks have stronger ability to resist deformation.Whereas the motion and deformation of flexible cover rocks and the damage of ground geological environment are easy to occur in the coal mining areas by underground mining.The conclusion has theory reference value to study the law of emergence and development of hazards induced coal-mining and effectively control hazard.更多还原