基于YADE的综放工作面进刀放煤三维仿真
Three-dimensional simulation of feeding and coal caving in fully mechanized caving face based on YADE
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摘要: 以Linux环境下离散元开发环境YADE为基础，开发了综放工作面连续进刀放煤三维仿真系统；系统以煤矿真实地质环境设置放煤参数，有效模拟了放煤过程中尾梁摆动、液压支架推移动作，以及尾梁顶部的煤矸混合动态变化过程；在此基础上，开展了单轮放煤、双轮放煤等不同工艺的进刀放煤对比试验。结果表明：进刀放煤三维模型能够真实地模拟顶煤放出过程，为从三维角度研究综放开采顶煤放出规律提供了新的方法；在综放工作面连续进刀放煤条件下，双轮分段间隔放煤效果最好，其平均顶煤采出率为86.64%、含矸率为4.06%。Abstract: Based on the discrete element development environment YADE under Linux environment, this paper develops a three-dimensional simulation system for continuous feeding and coal caving in fully mechanized caving face. The system which sets the coal caving parameters based on the real geological environment of the coal mine can effectively simulate the swing of the tail beam, the pushing action of the hydraulic support, and the mixed dynamic change process of the coal and gangue on the top of the tail beam during the coal caving process. On this basis, the comparison experiments of single-wheel coal caving and double round coal caving were carried out. The experimental results show that the three-dimensional model of feeding and coal caving can truly simulate the top coal caving process. It also provides a new method for studying the top coal caving law of fully mechanized caving mining from three-dimensional perspective; under the condition of continuous feeding and coal caving in fully mechanized caving face, the effect of double-wheel sublevel interval caving is the best, the average top coal recovery rate is 86.64% and the gangue rate of 4.06%.
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Keywords:
- fully mechanized top-coal caving /
- discrete element /
- YADE /
- continuous feed /
- caving method /
- intelligent mining
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