【作者】 周伟；

【导师】 崔洪庆；

【作者基本信息】 辽宁工程技术大学 ， 矿产普查与勘探， 2008， 硕士

【摘要】 在矿井现场调查的基础上,应用定量分析和定性分析的基本原理,对大海则煤矿矿井地质及水文地质条件、矿井充水条件以及矿井水灾害影响因素进行了深入的分析和研究。在此基础上借助定量预测中的神经网络预测法,根据研究区矿井充水水源、充水通道、矿井水灾害影响因素,建立了BP神经网络模型,应用于大海则煤矿主要开采煤层,对井田内各水文钻孔的单位涌水量进行了预测,绘制了单位涌水量等值线图,并结合烧变岩积水区分布图、老窑积水区分布图绘制了矿井水灾害易发区域分布图。本研究认为大气降水、烧变岩区积水、老窑积水是矿井主要充水水源;地表沟谷表层裂隙和第四系松散层裂隙是矿井主要充水通道;矿井水灾害易发区域主要集中在井田西南部河谷区附近。在此基础上提出了几点矿井水防治建议,为今后大海则煤矿矿井水防治工作提供了理论和技术参考。更多还原

【Abstract】 Based on the mine field survey, this paper mianly applied the basic principle of quantitative analysis and qualitative analysis to further researched geological and hydrogeological conditions, water filled condition, as well as water disasters factors of DaHaize coal mine. And then with the method of neural networks quantitative prediction, neural networks prediction in quantitative prediction was established according to the water source of inundation in mine, water passageway, and mine water disasters factors in this district, which was used for main exploited coal seam and to predict units-inflow of each hydrogeologic drilling in coal field. At the same time, the isogram chart of units-inflow and the mine water disaster-prone region map had been drew in the view of the water-logged distribution map of the fritted rock and the old pit. This study concluded that: meteoric water, logged water of fritted rock and old pit were the main source of water; the fractures in the superficial valley and quaternary sediments were major filled water passageway of mine; mine water disaster-prone region was mainly concentrated near valley area in the southwest of the mine field. From the conclusion above, this study came up with several advices for preventing water disaster of coal mine, which offered theory and technical guideline for preventing water disaster of DaHaize coal mine.更多还原