金凤煤矿首采工作面防治水技术研究

发布时间：2018-02-27 11:26

本文关键词： 水文地质涌（突）水预测预报电法防治水措施　出处：《西安科技大学》2013年硕士论文　论文类型：学位论文

【摘要】：矿井水文地质类型及其复杂程度决定了矿井开采受水害威胁程度，也决定了工作面回采过程中防治水工作的难易程度。顶板砂岩裂隙、孔隙充水含水层的发育，随工作面回采垮落易引发顶板涌（突）水，由于充水含水层富水性在空间上存在不均一性，同时由于在工作面及其附近发育不同性质的断裂，增加了突水的可能性，导致了顶板涌（突）水防治工作的复杂性。因此，科学合理地评价煤层安全回采的顶板涌（突）水条件和进行回采工作面顶板水量动态预测预报以及制定切实可行的防治水对策措施，不论是对现场安全生产，还是对顶板水害防治的拓展都具有十分重要的意义。本论文以金凤煤矿首采工作面为背景，对已有水文地质资料进行工作面充水条件分析，利用高密度电阻法和激发极化发法等物探手段，圈出含（导）水异常带，根据地层物性划分出相对富水区和相对贫水区。同时，通过工作面已有水文地质资料、以及钻探、构造和岩性等多元地学信息，，利用“三图-双预测”理论方法，得出工作面充水条件综合分区成果图。将上述两种成果对比分析，得到工作面内较可靠的涌（突）水危险区域。最后根据工作面涌（突）水危险区域分布状况制定具体的防治水技术措施，保证首采工作面安全回采。本研究应用于金凤煤矿首采工作面水文地质条件分析与防治水工作中，取得了首次成功，为同类条件下矿井水文地质条件分析与回采工作面顶板涌（突）水防治研究提供了可靠的依据和宝贵经验，带来了良好的经济和社会效益，具有一定的推广借鉴意义。
[Abstract]:The type and complexity of mine hydrogeology determine the degree of mine mining threatened by water, and also determine the degree of difficulty in preventing and controlling water in the process of mining. The development of roof sandstone fissure and pore water-filled aquifer. With the mining collapse of the working face, roof gushing (outburst) is easy to be induced. Because of the heterogeneity of water enrichment in the water-filled aquifer and the development of different fracture characteristics in and around the working face, the possibility of water inrush is increased. Which leads to the complexity of roof water control. Scientific and reasonable evaluation of roof surge (outburst) water condition of coal seam safe mining, dynamic prediction and prediction of roof water quantity in mining face, and formulation of feasible measures for water prevention and control, no matter for safe production on the spot, It is also of great significance to the development of roof water hazard prevention. This paper takes the first mining face of Jinfeng coal mine as the background, analyzes the water filling condition of the existing hydrogeological data, and uses geophysical exploration methods such as high density resistance method and induced polarization method to circle the abnormal zone containing (conducting) water. According to the physical properties of the strata, it can be divided into relatively water-rich areas and relatively water-poor areas. At the same time, through the hydrogeological data, drilling, structure and lithology information, the theory method of "three maps and two prediction" is used. The comprehensive zoning result map of the working face water filling condition is obtained. The above two results are compared and analyzed. Finally, according to the distribution of the dangerous area of water burst (inrush) in the face, the technical measures of preventing and controlling water are made to ensure the safe mining of the first mining face. This study was applied to the analysis of hydrogeological conditions and the prevention and control of water in the first mining face of Jinfeng Coal Mine, with the first success. It provides a reliable basis and valuable experience for the analysis of mine hydrogeological conditions and the prevention and control of roof gushing (outburst) water in mining face under the same conditions, and brings good economic and social benefits, and has certain popularization and reference significance.
【学位授予单位】：西安科技大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：TD745

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