【作者】 邢丽花；

【导师】 施龙青；

【作者基本信息】 山东科技大学 ， 地质工程， 2011， 硕士

【摘要】 本文针对济阳煤矿六采区10煤层的开采；对采区内10煤层底板水文地质特征及突水危险性进行了详细的分析研究。通过收集采区已有的地质、水文地质勘探资料,分析了采区内10煤层顶底板的地质及水文地质条件,研究了10煤层底板的岩性构成及其组合特征,分析了影响10煤开采的直接、间接充水含水层及含水层之间的水力联系,并得出影响10煤层开采的含水层主要是四五灰,徐奥灰主要通过对四五灰的补给影响煤层开采的结论。本文研究了底板四五灰水压分布特证及10煤层埋藏规律；结合六采区瞬变电磁勘探成果进行含水层富水性分析及断层的含导水性分析；根据10煤层底板至四五灰间距及其岩性组合特征计算了有效隔水层厚度；利用断层分维值采用箱型覆盖法量化了采区的断裂构造指标,合理的评价了采区的断裂构造复杂程度；综合考虑含水层水压、含水层富水性、隔水层阻水性能、煤层埋深及地质构造复杂程度五种因素,采用模糊聚类分析法对研究区10煤层底板突水危险性进行了预测,并对研究区进行了突水危险性分区。对采区内的李家断层及其分支断层、DF3及DF5含导水断层采用《煤矿防治水规定》中断层煤柱的留设、考虑采动矿压作用的煤柱留设及通过RFPA数值模拟得到煤柱留设宽度三种方法分别进行了研究,确定了合理的断层煤柱留设尺寸。更多还原

【Abstract】 In view of No.10 seam’s mining in the sixth section of Jiyang coal mine, this paper made a detailed analysis and study of the hydrogeological characteristics and water invasion danger of No.10 coal seam floor. By the approaches of collecting the previous geology and hydrogeology exploration data of the section, this paper analyzed the geological and hydrogeological conditions of No.10 coal seam roof and floor, made a study of the lithological characters and the combined features of No.10 coal seam floor, analyzed the direct indirect discharge aquifers and hydraulic connection among these aquifers, and drew conclusions that limestone aquifer IV&V was the main discharge aquifer that threatened NO.10 seam mining, limestone aquifer Xu&O had an effect on seam mining by recharging the aquiferⅣ&Ⅴ. This paper dealed with the head pressure’s distributive characteristics of limestone aquifer IV&V and the burialdepth of No.10 coal seam; analyzed the water abundance and conductivity of the aquifers and the faults using the transient electromagnetic exploration achievements; modified the aquiclude thickness according to the pitch and lithological association from No.10 seam floor to limestone aquifer IV&V; quantized the structure indexes of the section adopting box-covering method using fractal dimension value of the faults, and rationally evaluated the complexity degree of the structure in the section. This paper made a predibtion of the water invasion danger with the method of fuzzy clustering analysis after comprehensive analyses of all the five influence factors which contained the pressure and water abundance of the aquifer、aquiclude water resistance、mining depth、geological structure, and got a conclusion of the water invasion danger’s division. Aiming at setting up fault waterproof pillar for Lijia fault and its branch fault、DF3 faul、DF5 fault, this paper used the formula in the regulation、the way considering mining pressure、numerical simulating method and finally offered the rational remained dimensions.更多还原