基于断面优化的煤巷采掘效率提升方案研究

Research on Improving Mining Efficiency of Coal Roadway Based on Section Optimization

针对煤矿工作面回风顺槽,结合具体数值模拟和工程经验,研究了大断面煤巷优化方法。根据不同巷道断面的围岩变形和应力分布情况,分析了拱形的选择对巷道掘进效率的影响,并提出复杂地质煤矿巷道断面优化后的形式,并根据分析的断面结果提出采掘工艺方面的建议,为整个采掘工作的快速进行提出高效的优化方案。

Aiming at the return air chute of coal face,combined with specific numerical simulation and engineering experience,the optimization method of large section coal roadway is studied.According to the surrounding rock deformation and stress distribution of different roadway sections,this paper analyzes the influence of arch selection on roadway excavation efficiency,puts forward the optimized form of roadway section in complex geological coal mines,and suggestions on mining technology according to the analysis results,and an efficient optimization scheme for the rapid progress of the whole mining work.