梅花井煤矿首采区水文地质特征研究及富水性分区

发布时间：2018-04-21 12:00

本文选题：水文地质 + 煤矿防治水　；参考：《西安科技大学》2017年硕士论文

【摘要】：在我国,大部分煤矿都位于区域水文地质条件较复杂的地区。在开采过程中,煤层顶板砂岩导水裂隙带及垮落带随煤层开采发育,煤层顶板以上的承压水、潜水通过断层带、导水裂隙带涌入或渗入采区,从而引发矿井突水。同时,充水含水层富水性分布的不均一性,也增加了防治水工作的复杂性。因此,对矿井水文地质特征及煤层顶板富水性分区进行研究,根据结果因地制宜地为煤矿制定防治水措施及方案,对煤矿安全生产及生产效益具有十分重要的意义。本文以梅花井煤矿首采区为背景,通过对煤矿勘探资料及水文地质勘探资料进行分析及处理,研究梅花井矿区井田地质条件及水文地质条件,分析影响首采区的主要含水层。确定涌水量计算参数,并对涌水量进行计算与预测。利用瞬变电磁勘探方法对首采区工作面的充水条件及断层带进行探查。研究煤层两带发育高度,对煤层顶板冒裂安全性、富水性进行分区。通过以上研究成果对煤层顶板涌(突)水危险性进行评价,提出了首采区防治水建议。本研究以梅花井煤矿首采区工作面水文地质条件分析与富水性分区为重点,在一定程度上为煤矿防治水措施提供理论依据,具有良好的经济和社会效益。
[Abstract]:In China, most coal mines are located in areas with complex hydrogeological conditions. In the process of mining, the water-conducting fissure zone and the caving zone of the roof sandstone of coal seam develop with the coal seam mining. The confined water above the coal seam roof, diving through the fault zone and the water-conducting fissure zone pour into or infiltrate into the mining area, thus causing the water inrush of the mine. At the same time, the heterogeneity of water-rich distribution in water-filled aquifer also increases the complexity of water prevention. Therefore, it is of great significance to study the characteristics of mine hydrogeology and the water-rich subdivision of coal seam roof, and according to the results, to formulate water prevention measures and schemes for coal mines in accordance with local conditions, which is of great significance to the safety production and production benefit of coal mines. Based on the first mining area of Meihua coal mine, the geological conditions and hydrogeological conditions of the mine field in Meihua well mining area are studied through the analysis and processing of the exploration data and hydrogeological exploration data, and the main aquifers affecting the first mining area are analyzed. The calculation parameters of water inflow are determined, and the water inflow is calculated and forecasted. The transient electromagnetic exploration method is used to explore the water filling condition and fault zone of the face in the first mining area. The development height of two zones of coal seam is studied. Based on the above research results, the water risk of roof gushing in coal seam is evaluated, and suggestions for water control in the first mining area are put forward. This study focuses on the analysis of hydrogeological conditions and water-rich zoning in the first mining area of Meihua Coal Mine, to a certain extent, provides the theoretical basis for the measures of preventing and controlling water in coal mines, and has good economic and social benefits.
【学位授予单位】：西安科技大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TD745;P641.461

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