煤矿开采区块综合评价与判识研究——以口孜东矿13-1煤层为例

Study on comprehensive evaluation and identification of coal mining blocks:taking 13-1 coal seam of Kouzidong Mine as an example

为有效指导煤矿安全、高效开采,建立了矿井开采区块综合判识研究方法。以淮南煤田口孜东矿13-1煤层为例,选取构造、水害与瓦斯灾害作为一级评价指标,基于GIS平台分别建立了矿井地质构造复杂程度灰色模糊模型、顶板突水脆弱性指数模型、瓦斯突出变权TOPSIS模型及其相应数据库。以上述综合评价模型为基础,采用GIS重分类与图形层次叠加功能,将13-1煤层划分为了不利、威胁、可改造、较有利与有利开采区5个等级,其判识结果可为矿井煤炭开采规划与防灾减灾工作提供科学依据。

In order to effectively guide the safe and efficient mining of coal mines,a comprehensive identification research method of mining blocks is established.Taking the 13-1 coal seam of Kouzidong Mine in Huainan Coalfield as an example,taking the structure,water hazard and gas hazard as the primary evaluation index,the grey fuzzy model of mine geological structure complexity,roof water inrush vulnerability index model,gas outburst variable weight TOPSIS model and its corresponding database were established based on GIS platform.On the basis of the above comprehensive evaluation model,the 13-1 coal seam was divided into five grades of unfavorable,threatening,transformable,more favorable and favorable mining areas by using the GIS re-classification and graphic hierarchical superposition functions.The identification results could provide scientific basis for the coal mining planning and disaster prevention and mitigation work of the mine.