【摘要】 为了确保内蒙古某矿4201工作面回采至大水沟流域下方时实现过沟安全回采,对防治突水溃砂灾害发生的措施作了研究,通过实施地面导流工程和降水井工程,形成疏降漏斗,降低松散含水砂层潜水水头高度,疏干半径覆盖整个工程区域,消除了突水溃砂灾害发生的水动力条件,取得了良好的施工效果。更多还原

【Abstract】 In order to ensure the realization of crossing ditch safe recovery in recovering the 4201 Working Face of some mine in Inner Mongolia to the lower part of Dashui Ditch,researches the measures to prevent the bursting water and sand collapses,the discharge funnel can be formed by implementing the ground diversion and dewatering well projects,so it lowers the diving water height of loose water-bearing sand layer,diverts radius covering the whole engineering region,eliminates the water dynamic conditions for the bursting water and sand collapses,and achieves better construction effect.更多还原