鄂尔多斯某矿矿井涌水量预测研究

发布时间：2018-06-02 11:48

本文选题：矿井涌水量 + 预测　；参考：《昆明理工大学》2017年硕士论文

【摘要】：研究区矿井位于内蒙古自治区鄂尔多斯市南部的乌审旗,矿井隶属世界八大煤田之一的东胜--神府煤田。该煤田的矿井以含煤面积广、煤炭资源丰富、煤质优良、开采技术条件简单、适合于大规模机械化开采而闻名中外。研究区为裂隙-孔隙充水矿床,直罗组砂岩含水层是矿井主要充水含水层,本论文主要对2-2煤顶板直罗组承压含水层涌水量进行预测。本文在整理分析井田地质和水文地质条件的基础上,了解地层、含水层和隔水层及其特征、地下水的补、径、排条件,充水因素等。通过收集研究区的钻孔资料和水文地质等相关数据,利用地下水模拟(GMS)软件进行三维地质建模。通过对三维地质模型进行各个方向的剖分,详细、具体、全方位的展现出地质模型的细节,使研究者和矿山工作人员对研究区地层及含水层有整体的认识。运用“大井法"和“数值法”两种常用的涌水量预测方法,对矿井首采面涌水量进行预测。运用GMS软件中Modflow模块建立该矿井的地下水数值模型,经过模型识别和验证的阶段后,使模型与实际条件相符,最终使水位疏降到工作面高程以下,由此计算出矿井涌水量,最后给出矿井涌水量预测结果,为矿井安全生产提供依据。
[Abstract]:The mine in the research area is located in Wuheng Banner in the south of Ordos City, Inner Mongolia Autonomous region. The mine belongs to Dongsheng-Shenfu coalfield, one of the eight largest coal fields in the world. The coal mine in this field is famous for its wide coal area, abundant coal resources, excellent coal quality, simple mining technology and suitable for large-scale mechanized mining. The study area is a fissure-pore water-filled deposit, and the sandstone aquifer of Zhiluo formation is the main water-filled aquifer in coal mine. In this paper, the water inflow of the confined aquifer of the 2-2 coal roof plate in Zhiluo formation is forecasted. Based on the analysis of the geological and hydrogeological conditions of the well field, this paper is concerned with the formation, aquifer and aquifer, as well as their characteristics, the recharge, diameter, discharge conditions and water filling factors of groundwater. By collecting the drilling data and hydrogeological data of the study area, the 3D geological modeling is carried out by using the groundwater simulation software GMS. By dividing the 3D geological model in various directions, the details of the geological model are shown in detail, concretely and omni-directionally, so that the researchers and mine staff have a whole understanding of the strata and aquifers in the study area. In this paper, two commonly used water inflow prediction methods, "large well method" and "numerical method", are used to predict the inflow of water in the first mining face of a mine. The numerical model of underground water in this mine is established by using Modflow module in GMS software. After the model is identified and verified, the model is consistent with the actual conditions, and finally the water level is thinned down below the height of the working face, and the mine water discharge is calculated. Finally, the forecast result of mine water discharge is given, which provides the basis for mine safety production.
【学位授予单位】：昆明理工大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：P641.461;TD742

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