煤矿工作面设计与预裂爆破参数优化对顶煤回收率的影响研究  

Research on the Influence of Coal Mine Working Face Design and Pre-splitting Blasting Parameter Optimization on Top Coal Recovery Rate

作　　者：王吉恒 WANG Jiheng(Jinneng Holding Coal Industry Group Tongfa Dongzhouyao Coal Industry Co.,Ltd.,Datong 037100,Shanxi,China)

机构地区：[1]晋能控股煤业集团同发东周窑煤业有限公司,山西大同037100

出　　处：《凿岩机械气动工具》2025年第1期31-33,共3页Rock Drilling Machinery & Pneumatic Tools

摘　　要：某开采试验工作面设计长度为150.0 m,采高为3.0 m,截深为0.8 m,生产能力可达1.9×10^(4)t/a。文章通过数值模拟进行理论分析,确定放煤步距、放煤高度、放煤方式对回采率的影响,同时确定各工艺参数的最佳值,并结合工作面参数确定了预裂爆孔的相关参数,为后续高效回采奠定了基础。The design length of a mining test working face is 150.0 m,the mining height is 3.0 m,the cutting depth is 0.8 m,and the production capacity can reach 1.9×10^(4)t/a.This paper carries out a theoretical analysis through numerical simulation to determine the influence of coal drawing interval,coal drawing height and coal drawing method on recovery rate and determine the optimal value of each process parameter at the same time.Combined with the working face parameters,the relevant parameters of pre-splitting blasting hole are determined,which lays a foundation for subsequent high-efficiency mining.

关 键 词：放顶煤 回采工艺 放煤步距 采放比 预裂爆孔 

分 类 号：TD822[矿业工程—煤矿开采]