东欢坨矿顶板涌水条件与工作面水量动态预测

武强; 江中云; 孙东云; 钟亚平; 董东林; 殷作如; 李建民; 洪益清; 吴承梅; 张宏; 刘金韬

东欢坨矿顶板涌水条件与工作面水量动态预测

CONDITION OF WATER BURST AND DYNAMIC FORCAST OF INFLOW IN DONGHUANTUO MINE

摘要

摘要: 针对开滦东欢坨矿开采煤₈诱发的顶板涌(突)水问题,首先采用五个物理场的多源地学信息复合研究方法对煤₈顶板充水含水层进行了富水性综合分区。此外,在充分分析煤₈至顶板充水含水层间岩段的岩性特征基础上,将据《煤矿安全规程》计算出的导水裂隙带发育高度进行了全方位的岩性场定性校正,并编制了煤₈回采冒落安全性分区图。在此基础上,耦合叠加分析煤₈回采冒落安全性分区和其顶板充水含水层的富水性分区结果,对东欢坨矿煤₈回采顶板涌(突)水条件进行了综合评价,提出了A、B、C、D、E5个不同涌(突)水特征的分区划分方案。最后运用目前国际上先进的地下水流水质模拟评价的Visual Modflow专业软件系统,建立了三维可视化渗流模型,并对待采的2086、2188B回采工作面涌水量进行了动态实时预测。

Abstract: Based on an overlapping principle of multiple geological information,this paper divides firstly roof water-filling aquifer into different water-enrichment subareas,in the light of roof water-bursting problems resulted from mining coal seam No.8 in Donghuantuo coal mine,Kailuan,China.In addition,according to analyses of lithologic features for rock bed between the coal seam No.8 and the roof aquifer,the paper re-corrects water-conduction heights calculated with special regulation which is short of consideration of the lithologic features,and draws up a roof-falling safety division map.On the basis of the water-enrichmental and the safety division map,a scientific safety evaluation system for the roof water-bursting condition during mining coal seam No.8 is established,and a division scheme for the condition is also put forward in the paper.Finally,dynamic water inflows for working faces No.2086 and No.2188B are predicted by applying Visual Modflow.

HTML全文

参考文献(0)

施引文献

资源附件(0)