【摘要】 基于受单因素或多因素耦合作用下大采高综采面的临界"尺寸效应",为了科学量化特定赋存条件厚煤层开采强度,进而判定大采高综采能否安全高效并取得良好经济效益,将熵值理论应用于工作面开采强度评价中。采用属性识别法有效解决了工作面赋存条件和开采条件评价指标相邻区间的有序分割问题,建立了基于熵权的开采强度评价模型,实现了不同赋存条件厚煤层大采高工作面开采强度的横向对比,基于逐步逼近原理提出了极限开采强度下大采高工作面的合理的日进尺量、斜长及产能确定方法。现场对比验证了其合理性和科学性,为多因素藕合作用下大采高工作面合理开采强度和开采参数确定提供了一种更科学的方法。更多还原

【Abstract】 Based on the critical "size effect" analysis of single factor or multifactor coupling in large mining height working face, the definition and connotation of ultimate mining were put forward. The key issue that the large mining height working face could realize safe, efficient and good economic benefits was determined by scientific quantification of thick seam mining intensity. Then the mining intensity evaluation model based on entropy was set up and realized horizontal contrast among large mining height working face with different occurrence conditions. The attribute recognition method effectively solved the adjacent interval ordered partition problem of evaluation index about geological and mining condition. Because of the evaluation index easy to obtain, simple calculation process, and objective evaluation result, this model provided a more scientific approach to mining intensity classification evaluation of in large mining height working face.更多还原