采场上覆岩层结构理论及其新进展

Structural Theories of Overlying Strata in Longwall Faces and Their New Development

回顾了采场上覆岩层结构理论的发展过程,介绍了平面结构模型各个发展阶段的主要学术观点及其新进展,重点阐述了采场上覆岩层结构的稳定性及综放采场顶板结构理论的研究现状,提出了大范围顶板控制问题如采动覆岩空间结构与应力场的动态关系、顶板的异常压力控制等问题,这些问题是今后采场矿压研究的重点,并介绍了这些方面的最新研究成果。

This paper briefly reviews the development process of structural theories of overlying strata in longwall faces, and introduces the main academic viewpoints and their new development of the plane structural models at each stage and mainly discusses the structural stability of overlying strata in longwall faces and the present research situation of structural theories of overlying strata of fully-mechanized sublevel caving mining. And finally, this paper puts forward the thrusts of future research of roof pressure including the problem of roof control in large area, for example, the dynamic relationship between the spatial structure and stress field of overlying strata due to mining and the problem of abnormal roof pressure control in longwall faces as the fully-mechanized sublevel caving mining is applied and the mining depth is increased. And the latest research achievements in these aspects are introduced.