盘江矿区煤系地质构造复杂程度评价研究

Research on evaluation of complexity of geological structure of coal measures in Panjiang Mining Area

基于贵州盘江矿区生产地质条件的复杂性,为了解决因地质构造查明程度较低引起的煤矿安全生产问题,采用灰色模糊综合评价法,对盘江矿区煤系地质构造复杂程度评价进行了研究,提出了一种地质构造复杂程度评价方法。研究结果表明:将12号煤层划分为65个评价单元,其中地质构造复杂程度评价结果为Ⅰ、Ⅱ和Ⅲ级的评价单元分别有18,7和40个,且垂向分布明显。评价结果与生产实际过程中已揭露的情况基本吻合,结合备采区域的瓦斯含量和瓦斯涌出量特征,有助于该区域的瓦斯灾害防治决策。

Based on the complexity of geological conditions for coal mine production in Panjiang Mining Area of Guizhou Province,in order to solve the problem of safety production caused by the shallow identification of geological structure,the gray fuzzy comprehensive evaluation method was used to evaluate the complexity of the geological structure of coal measure strata in Panjiang Mining Area.This paper presented a method for evaluating the complexity of geological structure. The results show that 12 th coal seam is divided into 65 evaluation units. The evaluation results of geologic tectonic complexity are 18,7 and 40 for the evaluation of grade Ⅰ,Ⅱ and Ⅲ respectively,and the vertical distribution is obvious. The results of the evaluation are basically consistent with those already revealed in the actual production process. Combined with the gas content and gas emission characteristics of the later mining area,it is helpful to the decision-making of gas disaster prevention and control in this area.