顶板突水溃砂渗透破坏研究现状综述

Review on Research Status of Seepage Damage of Roof Water Inrush and Sand Break

摘要: 突水溃砂是指井下开采矿产资源时，裂隙或小断层导通富水，且因风化等原因失去抗剪性的砂体的原有平衡被打破，在重力作用下，水砂流加速流入井下，直至淹井，水砂重新达到平衡稳定状态的一种地质灾害。对于顶板突水溃砂，科学工作者已经做了比较多的研究，有关其发生机理，人们也通过数值模拟，物理模拟，理论研究等方法提出了诸多符合实际的理论假说；煤矿顶板突水溃砂事故会对生产安全构成极大的威胁，我国煤矿事故中有相当大一部分都是突水溃砂引起的。因此，加深对于顶板突水溃砂的发生机理的理解对于灾害防治有重要意义。本文简要总结了顶板突水溃砂的相关基本情况。

Abstract: Water inrush sand collapse refers to the underground exploitation of mineral resources, the fissure or small fault to lead to water-rich, and due to weathering and other reasons to lose the original balance of the sand body to lose shear, resistance is broken, under the action of gravity, the water sand flow accelerates into the well, until the well is flooded, the water sand again reaches a stable state of balance and stability. For roof water inrush sand burst, scientists have done a lot of research, about its mechanism, people also through numerical simulation, physical simulation, theoretical research and other methods put forward a lot of theoretical hypotheses in line with reality. Coal mine water inrush and sand collapse will pose a great threat to production safety. A considerable part of China’s coal mine accidents are caused by water inrush and sand collapse. Therefore, thoroughly understanding the occurrence mechanism of water inrush sand on the roof plate is of great significance for disaster prevention and control. In this paper, we briefly summarize the related situation of roof water inrush and sand burst.