所谓水砂充填,就是用河砂或其它散状矿物加水混合后,经管路输送到采空区来管理顶板的一种采煤生产工艺。在抚顺矾区各矿井采用水砂充填工艺已有五十多年的历史,其目的主要是控制地表沉陷和防止在回采过程中顶板,火灾等灾害的发生。然而采用水砂充填工艺,给矿井技术管理生产管理带来许多困难。由手在充填过程中矿 The so-called water sand filling, is to use river sand or other bulk minerals mixed with water, the pipeline transported to the goaf to manage the roof of a coal production process. In the Fushun Alum mine water sand filling process has been used for more than 50 years of history, its main purpose is to control surface subsidence and prevent the roof, fire and other disasters in the recovery process. However, the use of water sand filling process, to mine technology management and production management has brought many difficulties. Mine by hand in the filling process