块煤开采的工艺参数及工程应用研究  

Research on Process Parameters and Engineering Applications of Block Coal Mining

作　　者：辛旭 Xin Xu(Jinneng Holding Coal Industry Group Tongxin Coal Mine Shanxi Co.,Ltd.,Datong Shanxi 037001,China)

机构地区：[1]晋能控股煤业集团同忻煤矿山西有限公司,山西大同037001

出　　处：《山西化工》2024年第9期178-179,184,共3页Shanxi Chemical Industry

摘　　要：针对大硬度厚度以及裂隙不发育煤层开采时块煤率低以及能耗较大的问题,以23101工作面实践生产为例,对其基本地质条件分析的基础上,通过数值模拟仿真手段确定了适用于23101工作面的最佳压裂处理方式为双排孔压裂;根据现场条件和理论计算得出最佳开采工艺为双向割煤端头斜切进刀方式,对应开采工艺的块煤率指标从37%提升至75.8%。In response to the problems of low block coal rate and high energy consumption in the mining of coal seams with large hardness thickness and underdeveloped fractures,taking the practical production of the 23101 working face as an example,based on the analysis of its basic geological conditions,the optimal fracturing treatment method suitable for the 23101 working face was determined to be double row hole fracturing through numerical simulation methods.According to the on-site conditions and theoretical calculations,the optimal mining process is the bi-directional coal end oblique cutting method,and the corresponding block coal rate index of the mining process has been increased from 37%to 75.8%.

关 键 词：裂隙不发育 块煤率 双排孔压裂 双向割煤端头斜切进刀 截割深度 

分 类 号：TD823.251[矿业工程—煤矿开采]