急倾斜煤层可采工艺性评价及应用研究

为了预测急倾斜煤层开采的效果和决策辅助技术，对急倾斜煤层可采工艺性进行综合评价．在急倾斜煤层开采工业性试验及开采实践的经验和统计数据分析的基础上，建立了适合急倾斜煤层地质条件开采工艺性块段评价的层次结构，影响急倾斜煤层开采的复合因素有8个，基元因素13个；运用多指标综合评价方法和模糊数学原理，构造了急倾斜煤层可采工艺性影响因素的评价函数，建立了模糊综合评价模型．用该模型对京煤集团大台煤矿289个工作面进行了评价计算，并且根据工作面块段的评价值对工作面单产进行了预测，结果表明，工作面中1级27个，占9．34％；2级87个，占30．1％；3级112个，占38．75％；4级63个，占21．8％。评价结果与开采结果基本相吻合．

Study of Geological and Technologic Evaluation for Steeply Inclined Coal Seams

In order to predict the mining effect and choice the technical decision, the comprehensive evaluation on steep coal seams was taken. Based on the technical test, mining practice and the analysis of statistic data, the hierarchical structure of evaluation about steeply inclined coal seam was obtained. In the structure, there are 8 multiple factors, which can divide 13 fundamental factors. Using the method of comprehensive evaluation with multi-index and fuzzy mathematics, the evaluation functions of the influencing factors are structured, and the model of fuzzy evaluation is proposed. 289 mining faces in Datai mine were evaluated using this model, and the single outputs of these faces were predicted. The result shows that the number of mining faces in the first class is 27, covering 9.43% of the total, the number of the second class is 87, covering 30. 1% of the total, the number of the third class is 112, covering 38.75% ,and the number of the forth class is 63, covering 21.8%. The evaluation and the reality are uniform largely.