【摘要】 河北邯郸某矿区因发展要求,需在采空区场地新建建筑物,但由于该矿区地质条件的复杂性,建筑物荷载的作用导致了地下水的流失。运用RFPA2D软件,再现了含断层带的采空区在建筑物荷载、承压水共同作用下,由于导水裂隙的生成、扩张、贯通而导致地下水流失的全过程。随后提出并分析了矿井水资源化及其相关问题。结果表明,随着建筑物荷载增大,断层裂隙向下方采空区方向扩展和贯通,造成了浅层地表水向深部采空区渗流汇集。此研究对于如何安全利用采空区场地,保护矿区水资源、防止生态环境恶化有一定的参考价值。更多还原

【Abstract】 A newly-built construction above goaf site is required for development demand in Handan of Hebei province.But the geological conditions were extremely complex,building loads led to the loss of underground water.RFPA2D analy seftnare is used in this article,and under the action of building loads and confined water head,the process that causes the loss of underground water from initiation,propagation and coalescence to rupture of rock fractures around the stope is reproduced.Then the mine water resources and its related issues are proposed and analyzed.The results show that with the building loads increase,the propagation of cracks is extending from the top to the bottom of the goaf,and shallow groundwater seeps together into the deep goaf.This study provides a reference for safe utilizing the goaf site,protecting water resources in mining area and preventing deterioration of the ecological environment.更多还原