神府−东胜矿区高强度开采顶板涌水特征及防治技术  

Characteristics of roof water inflow and control technology for high intensity mining in Dongsheng Mining Area,Shenfu Coalfield

作　　者：许峰 靳德武 杨茂林[4] 王世东 黄欢 党亚堃 XU Feng;JIN Dewu;YANG Maolin;WANG Shidong;HUANG Huan;DANG Yakun(China Coal Research Institute,Beijing 100013,China;Xi’an Research Institute Co.Ltd.,China Coal Technology and Engineering Group Corp.,Xi’an 710077,China;Shaanxi Key Laboratory of Prevention and Control Technology for Coal Mine Water Hazard,Xi’an 710077,China;Shenhua Shendong Coal Group Co.Ltd.,Shenmu 719315,China)

机构地区：[1]煤炭科学研究总院,北京100013 [2]中煤科工集团西安研究院有限公司,陕西西安710077 [3]陕西省煤矿水害防治技术重点实验室,陕西西安710077 [4]神华神东煤炭集团有限责任公司,陕西神木719315

出　　处：《煤田地质与勘探》2022年第2期72-80,共9页Coal Geology & Exploration

基　　金：国家重点研发计划课题(2017YFC0804106);陕西省自然科学基础研究计划项目(2020JM-715)。

摘　　要：针对我国西部矿区煤炭开采顶板水害威胁问题,以神府−东胜矿区为研究对象,统计了50个工作面的涌水量数据,总结了不同煤−水组合下5种典型的工作面顶板涌水特征:动态补给主导的持续增长型;“动−静”储量共同作用的先增后稳型;微涌水持续稳定性;水文地质条件差异化局部凸显型以及静储量主导先增后减型。针对每种涌水规律,分析了其成因机制,并提出相应的水害防治思路及措施:当工作面受侧向补给较强时,根据实际水文地质条件可采用帷幕截流措施为主、疏水降压措施为辅的防治手段;当工作面受顶板含水层静储量补给为主时,可提前疏水降压,削峰平谷;当工作面受顶板含水层局部富水区域或采空区涌水补给时,可有针对性地采取疏放、注浆治理等综合措施,消除局部水患等。研究成果对于受顶板水害威胁的西部矿区水害防治工作具有借鉴意义。In view of the threat of roof water disasters in coal mining in western China,the water inflow data of 50 working faces are counted in Dongsheng Mining Area of Shenfu Coalfield,and five typical water inflow characteristics are summarized,which are dynamic recharge-led sustained growth type,the increasing first and then stabilizing type with“dynamic-static”reserves acting together,continuous stability of micro inflow,differential hydrogeological conditions locally prominent type,and the increasing first and then decreasing type dominated by static reserves.According to the law of each type of water inrush,the corresponding ideas and measures of water disaster prevention and control are put forward.When the working face is strongly recharged by the side,the curtain closure measures can be used as the main measure with drainage and pressure reduction as the auxiliary measure according to the actual hydrogeological conditions.When the working face is mainly recharged by the static reserves of the roof aquifer,the drainage and pressure reduction can be carried out in advance.When the working face is supplied by the water inflow in the water rich area(or goaf)of the roof aquifer,comprehensive measures such as drainage and grouting treatment can be taken to eliminate local water disasters.The research results provide reference for the prevention and control of water disasters in the mining areas in western China threatened by roof water disasters.

关 键 词：神府−东胜矿区 煤炭开采 顶板水害 涌水规律 

分 类 号：TD745[矿业工程—矿井通风与安全]