不连沟煤矿承压区底板涌水水源判别及通道形成机制研究  

Research on Floor Water Source Discrimination and Channel Formation Mechanism in Confined Area in Buliangou Mine

作　　者：戎虎仁[1] 白海波[2] 王海龙[1] 王子河 王占盛 张波[1] 曹海云[1] RONG Hurere;BAI Haibo;WANG Hailong;WANG Zihe;WANG Zhansheng;ZHANG Bo;CAO Haiyun(School of Civil Engineering, Hebei University of Architecture, Zhangjiakou 075000, China;State Key Laboratory for Deep Geo-mechanics and Underground Engineering, China University f Mining and Technology,Xuzhou 221008,China;Institute of Water Resources for Pastoral Area,MWR, Hohehot 021002, China;Research Institute of Science and Technology, China Railway Eryuan Engineering Group Co. , Ltd. , Chengdu 610000, China)

机构地区：[1]河北建筑工程学院土木工程学院,河北张家口075000 [2]中国矿业大学深部岩土力学与地下工程国家重点实验室,江苏徐州221008 [3]水利部牧区水利科学研究所,内蒙古呼和浩特021002 [4]中铁二院科学技术研究院,四川成都610000

出　　处：《矿业安全与环保》2016年第6期37-39,49,共4页Mining Safety & Environmental Protection

基　　金：国家自然科学基金项目(50974115);国家重点基础研究发展计划(973计划)项目(2013CB227900);河北省教育厅青年基金项目(QN2016066);河北建筑工程学院校级基金项目(B-201602);张家口市科技计划项目(1611061A)

摘　　要：针对不连沟煤矿F6204巷道底板滞后性阶段涌水现象,分析了涌水水量、水质随时间的变化特征,探测底板采动破坏深度,揭示了底板涌水通道的形成机制。研究结果表明:底板涌水量随时间延长呈现出由渗水—涌水激增—涌水衰减的渐变过程,涌水水质随时间延长由砂岩水向砂岩—老空混合水变化;涌水通道由F6203工作面、F6204巷道底板扰动形成的垂向通道和砂岩孔隙—裂隙含水层水平通道构成;初期砂岩含水层原始裂隙水对老空水涌出的封堵作用造成底板涌水滞后性、阶段性是由于含水层分布的空间位置所致,首先涌出砂岩裂隙水,其后为老空水及部分砂岩孔隙水,老空水水量、水压变化是造成涌水变化特征的主要原因。Aiming at the phenomenon of the delayed water inrush from the floor of F6204 roadway, change characteristicsof water discharge and quality with time were analyzed, the floor failure depth caused by mining was detected and the for^nationmechanism of floor water inrush channel was revealed. The study results showed that the floor water inrush presented a gradualprocess of water seepage - sharp increase of water inrush - weakening of water inrush with the time extension, the water qualitychanged from the sandstone water to sandstone - gob mixing water with the time extension ; the water inrush channels werecomposed of the vertical channels formed by the floor disturbance of F6203 working face and F6204 roadway and the horizontalchannels in the sandstone pore-fissure aquifer; the delayed and phased water inrush led by the blocking effect of the originalfissure water in the sandstone aquifer on the water inrushin the gob were caused by the space location of the aquiferdistribution, the sandstone fissure water was dischargedfirst, then the gob water and partial sandstone pore water,the change of the gob water quantity and pressure was themain reason of the water inrush change.

关 键 词：煤矿水害 滞后性涌水 水源判别 底板扰动深度 涌水通道 

分 类 号：TD745[矿业工程—矿井通风与安全]