【作者】 胡艳卉；

【导师】 张文泉； 张培森；

【作者基本信息】 山东科技大学 ， 水文学与水资源， 2010， 硕士

【摘要】 五沟煤矿102煤层底板水文地质条件极为复杂,水患影响严重。随着五沟煤矿的即将投产,102煤层底板石炭系太灰岩溶裂隙水对矿井的安全有着较大的威胁。为了安全生产,有必要开展煤层底板灰岩水的疏水降压工程。本论文以五沟煤矿南一采区底板受太灰水突水危险为研究背景,根据地下水动力学理论、水文地质学理论及矿山安全开采理论等学科知识,分析了五沟煤矿南一采区地下水系统结构环境特征,分别依次建立了以南一采区水文地质概化模型、数学模型；应用地质统计学理论分析了地下水位与底板高程之间的影响关系,利用已知观测数据,采用协同泛克立格法插值计算出计算节点的水位初始值,并依据SURFER软件绘制较为准确的南一采区地下水初始流场分布；采用GMS数值模拟软件,通过修改水文地质参数与几何参数,完成模型运行及反演校正,对比分析了模拟流场与实际流场的吻合状况,得出本文所建立的模型基本符合实际水文地质条件,达到预测预报地下水水位的要求；采用不同排放水方案,预测该地区2010年6月末地下水水位,及不同放水时间对应地下水位,进而获得区域降落漏斗的变化趋势；在进行承压水对突水作用分析、底板岩层组合及其阻水性能分析的基础上,采用底板突水系数法对102煤层开采掘进工作面及回采工作面进行了底板水患威胁分析；结合已有底板采动效应研究成果及102煤层底板隔水层厚度及GMS模拟结果,解决突水系数法因水头压力估计不足而造成的评价误差,实现102煤1016工作面安全开采评价,获得1016工作面安全开采放水方案；根据上述研究成果,结合矿区水害防治现状,提出1016工作面安全开采技术建议。更多还原

【Abstract】 The floor hydrogeological condition of 10th coal seam is extremely complex, in which floor of Carboniferous limestone karst fissure water of the coal seam there is a big threat. In order to eliminate flooding, and ensure safety in production, it is necessary to carry out hydrophobic step-down project for the layers water of coal seam floor limestone water.In this thesis, Mine of a mining area south of floor water bursting limestone water is dangerous for the research background, according to kinetic theory of groundwater, hydrogeology, mining mine safety theory and theory of subject knowledge, analysis of the five coal mine in a mining area in Southern environmental characteristics of groundwater system structure, in turn to set up a mining area south of the hydrogeological conceptual model, mathematical model;Geostatistics theory of the water table and the relationships between the bottom elevation, using the known observational data used to calculate synergy Kriging interpolation calculation of the initial value of the node level, and based on more accurate mapping software SURFER South the initial mining area of a groundwater flow field;It used GMS numerical simulation software for model calibration run and inversion by modifying the hydrological parameters and geometric parameters. Then analyzed comparative the simulated flow field consistent with the actual flow field conditions. the model results reveal the basic accordance with the hydrogeologic conditions, meet the requirements of the groundwater level prediction.Adopt different plans to discharge water, and forecast groundwater level in the region at the end of 2010.06 and drainage water table in different time, then obtain the trend of the regional cone of depression. After-analysis of the role of confined water on the water burst, bottom composition and water resistance properties of rock, water inrush coefficient method used in 10 coal mining and coal face heading face the threat of flooding to the floor analysis; combination of existing research results seam floor and 10 floor seam group impermeable layer, and GMS simulation results, to solve the water inrush coefficient method underestimated due to water pressure caused by pricing errors, to achieve the 10 coal mining safety evaluation of 1016 face, access to safe mining face Drainage Programme 1016;Based on the above findings, combined with mine water hazard control the present situation, it proposed mining safety measures of 1016 workface.更多还原