基于充水条件比拟的工作面涌水量预计方法
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摘要
针对蒙陕矿区纳林河二号矿井水文地质条件复杂、防排水系统布设困难等问题,开展了工作面涌水量预计方法研究。在对矿井31121工作面充水水源、充水通道和充水强度深入分析研究的基础上,分别采用大井法、单宽流量法和水文地质综合比拟法对工作面涌水量进行了动态预计,并对各方法和预计结果进行了对比研究。结果表明:水文地质综合比拟法的涌水量预计结果较为准确,可作为该工作面防排水系统建设的依据,以保障工作面安全回采。
In view of the complex hydrogeological conditions and the difficulty in the arrangement of drainage and prevention systems in Nalinhe No. 2 mine in the bordering area of Inner Mongolia and Shanxi Province, the method for predicting the water inflow in the working face is studied. Based on the deep analysis and research on the water-filled source, water-filled channel and water-filled strength of 31121 working face of the mine, the dynamic prediction of water-filled amount of the working face is carried out by using big well method, single wide flow method and hydrogeological comprehensive comparison method respectively,and a comparative study is carried out on the methods and predicted results. The results show that the water inflow prediction results based on hydrogeological comprehensive comparison method are most accurate, which can be used as the basis for the construction of the water drainage systems in the coal faces to ensure the coal safety recovery.
In view of the complex hydrogeological conditions and the difficulty in the arrangement of drainage and prevention systems in Nalinhe No. 2 mine in the bordering area of Inner Mongolia and Shanxi Province, the method for predicting the water inflow in the working face is studied. Based on the deep analysis and research on the water-filled source, water-filled channel and water-filled strength of 31121 working face of the mine, the dynamic prediction of water-filled amount of the working face is carried out by using big well method, single wide flow method and hydrogeological comprehensive comparison method respectively,and a comparative study is carried out on the methods and predicted results. The results show that the water inflow prediction results based on hydrogeological comprehensive comparison method are most accurate, which can be used as the basis for the construction of the water drainage systems in the coal faces to ensure the coal safety recovery.
引文
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[2]连会青,夏向学,徐斌,等.矿井涌水量预测方法及适用性评价[J].华北科技学院学报,2014,11(2):22.
[3]左文喆,王斌海,程紫华,等.矿井涌水量预测方法综述[J].化工矿物与加工,2016(9):71-74.
[4]刘洋.浅埋煤层开采矿井涌水量计算方法研究[J].西安科技大学学报,2012,32(5):565-566.
[5]朱宏军,鸳鸯湖矿区矿井涌水量预测方法研究[D].北京:煤炭科学研究总院,2014:1-5.
[6]徐智敏,孙亚军,董青红,等.隔水层采动破坏裂隙的闭合机理研究及工程应用[J].采矿与安全工程学报,2012,29(5):613-614.
[7]刘会明.矿井充水通道分析[J].科技情报开发与经济,2011,21(4):197.
[8]虎维岳,闫丽.对矿井涌水量预测问题的分析与思考[J].煤炭科学技术,2016,44(1):14-15.
[9]吕汉江.棋盘井煤矿水文地质特征分析及涌水量计算[J].煤矿安全,2014,45(7):155-158.
[10]代凤强.巴彦高勒煤矿首采面水文地质特征分析及涌水量预测[J].中国煤炭,2017,43(1):108-110.
[11]石磊.蒙陕接壤区纳林河二号矿井首采工作面顶板富水性探查[J].中国煤炭地质,2014,26(10):49.