中文摘要：

通过现场地应力测量和理论分析以及数值模拟计算，研究了淮南矿区地应力分布规律，探讨了圆形硐室围岩应力分布和不同侧压下回采工作面顶板稳定性分布。研究结果表明：淮南矿区原岩应力主要表现为自重应力场，除局部构造应力集中外，不存在高构造应力；区内侧压力系数A值一般为0．49—1．49，平均为0．92，并且与测点距地表深度有一定的趋向性，表现为在浅部A值较大，变化范围也大，而在深部A值渐小，变化范围也缩小；回采工作面顸底板稳定性与侧压系数A的大小密切相关，且随侧压系数A的增大，顶板垂直位移减小，顶板岩层易于形成结构平衡而保持稳定，但底板垂直位移量增大，且易于形成底鼓破坏。这些认识为研究区煤层顸底板岩层支护控制提供了科学依据。

英文摘要：

Based on analysis of geological conditions of Huainan mine area, the distribution law of in-situ stress of the research area is studied,stress in surrounding rock of circular opening and the stability of coal roof and floor for working face under different confining pressure are discussed by using methods of testing in-situ stress, theoretical analysis and simulated calculation. It is shown that in-sltu stress of Huainan mine area is represented chiefly as gravity stress field. Except locally centralized stress,there is no high tectonic stress in the research area. Lateral pressure coefficient λ is generally 0.49 - 1.49 and 0.92 in average, and the value A is related with the distance between measuring point of ground surface. Its law is that lateral pressure coefficient λ is greater in the superficial part,change range of the value A also larger,but in deep,laterul pressure coefficient A is lower,change range of the value λ is also smaller. Stability of coal roof and floor is closely related with the size of lateral pressure coefficient ,λ With lateral pressure coefficient A increasing, vertical displacement of coal roof decreases continuously and coal roof strata forms easily structural balance and keeps advantageously stability. Contrasting to coal roof, vertical displacement of coal floor increases continuously and floor heave is formed easily as lateral pressure coefficient A increases. The research results are of significant value to the mining design and strata control of underground.