雅店煤矿地下水流数值模拟及涌水量预测  

Numerical simulation of underground water flow and prediction of water inflow in Yadian Coal Mine

作　　者：李盼盼 张磊 杨远航 刘甜甜 于可伟 蔚波 Li Panpan;Zhang Lei;Yang Yuanhang;Liu Tiantian;Yu Kewei;Wei Bo(CCTEG Xi'an Research Institute(Group)Co.,Ltd.,Xi'an710054,China;Shaanxi Huabin Yadian Coal Industry Co.,Ltd.,Xianyang 713500,China;School of Geology and Environment,Xi'an University of Science and Technology,Xi'an 710054,China)

机构地区：[1]中煤科工西安研究院(集团)有限公司,陕西西安710054 [2]陕西华彬雅店煤业有限公司,陕西咸阳713500 [3]西安科技大学地质与环境学院,陕西西安710054

出　　处：《能源与环保》2025年第1期21-27,共7页CHINA ENERGY AND ENVIRONMENTAL PROTECTION

基　　金：陕西省教育厅自然科学专项(21JK0754)。

摘　　要：雅店煤矿受巨厚洛河组含水层影响,洛河组含水层在垂向上岩性变化较大,在对洛河组按照岩性分层的基础上,采用数值模拟方法对不同阶段的矿井涌水量进行了预测。选取雅店井田一采区为模型的平面范围,建立水文地质概念模型,确定数学模型,采用抽水试验数据对采前渗透系数进行了校正,并采用已回采工作面的涌水量实测值,对采后导水裂缝带范围内含水层的渗透系数进行了试算。结果表明,采后导水裂缝带范围内含水层的渗透系数为0.010~0.031 m/d,导水裂缝带显著地增大了煤层上覆地层的垂向渗透系数。在校正模型的基础上,采用Drain子模块和Zonebudget子模块,预测矿井一采区总涌水量为3504 m^(3)/h。The Yadian Coal Mine is affected by the thick Luohe Formation aquifer,which has significant changes in lithology in the vertical direction.Based on the stratification of the Luohe Formation according to lithology,numerical simulation methods were used to predict the water inflow of the mine at different stages.The first mining area of the Yadian mine field was selected as the plane range of the model,a hydrogeological conceptual model was established,a mathematical model was determined,and the pre-mining permeability coefficient was corrected by pumping test data.And the permeability coefficient of the aquifer within the water conducted zone after mining was calculated using the measured water inflow of the already mined working face,the results show that the permeability coefficient of the aquifer within the range of the water conducted zone after mining is between 0.010 and 0.031 m/d,and the water conducted zone greatly enhances the vertical permeability coefficient of the overlying strata of the coal seam.Based on the verified model,the Drain and Zonebudget sub-modules were used to predict the mine water inflow in the first mining area,which is 3504 m^(3)/h in the next three years.

关 键 词：涌水量 洛河组 数值模拟 渗透系数 

分 类 号：P641.4[天文地球—地质矿产勘探]