中马村矿地质构造复杂程度的定量化评价

Quantitative Evaluation on Complexity Degree of Geological Structure in Zhongmacun Coal Mine

针对中马村矿地质构造在全井田发育不均衡的现象,通过分析矿井断层的发育特征和展布规律,对井田不同开采水平进行了构造等性块段划分;在等性块段的基础上,结合断层的发育特征、沉积特征、几何特征3个方面因素,建立矿井构造综合评价模型;通过等性块段、综合指数评价和灰色关联度方法,对矿井进行了构造复杂程度综合评价。评价结果表明,由于构造在煤层中起到了沟通割理和外生裂隙的作用,故在构造相对复杂的开采水平,煤层透气性系数也相对较高。

Based on the imbalanced development phenomena of the geological structure in the whole field of Zhongmacun coal mine, as well as the analysis on the growth characteristics and distribution law of the coal fault, equal block structure division were implemented on different exploitation levels of the mine in the paper. On the basis of the equal block ,the comprehensive evaluation model of the coal mine was established in combination with three factors, including the developmental characteristics, sedimentary characteristics of the fault and geometrical property. The composite evaluation on the structural complexity was carried out through the equal block, composite index evaluation and gray associated analysis. The evaluate results show that the structure plays the role of connect cleats and exogenetic crack, so the permeability coefficient is relatively high in exploitation level whose structure is relatively complex.