摘要
在厚煤层的放顶煤开采过程中,因对顶煤的放出特性研究不足,不能及时有效地调节开采参数,降低了放顶煤的效率。针对此情况,根据放顶煤的破碎规律,采用FLAC仿真分析,对顶煤的厚度及支架支撑对顶煤破碎率的影响作用进行模拟研究,据此确定了合理的顶煤厚度及支架的操作,提高了顶煤的放出率。
In the process of top coal caving mining in thick coal seam,due to the lack of research on the caving characteristics of top coal,the mining parameters can not be adjusted timely and effectively,which reduces the efficiency of top coal caving.According to the crushing law of top coal caving,the influence of top coal thickness and support support on top coal crushing rate is simulated and studied by FLAC simulation analysis.Based on this,the reasonable top coal thickness and support operation are determined,and the top coal caving rate is improved.
作者
范文东
Fan Wendong(Shanxi Lu'an Guozhuang Coal Industry Co.,Ltd.,Changzhi Shanxi 046100)
出处
《山西冶金》
CAS
2021年第5期107-108,共2页
Shanxi Metallurgy
关键词
放顶煤开采
顶煤厚度
液压支架
塑性变形
破碎性
top coal caving mining
top coal thickness
hydraulic support
plastic deformation
fragmentation
