村庄下厚煤层开采方法研究  

Research on mining methods of thick coal seam under villages

作　　者：王成真[1] 

机构地区：[1]山西晋城无烟煤矿业集团有限责任公司生产技术处,山西晋城048006

出　　处：《煤炭科学技术》2016年第1期114-119,共6页Coal Science and Technology

摘　　要：针对我国村庄下厚煤层压煤量巨大的问题,提出进行分层充填开采、覆岩离层及垮落带断裂带注浆充填开采和村庄搬迁新模式开采,以解放村庄下厚煤层。在技术条件可行的前提下,对比分析了不同煤层厚度及不同村庄人口密度时3种开采方法的经济效益。结果表明:3种开采方法的经济利润随煤厚的增加均呈增长趋势,随村庄人口密度的增长均呈下降趋势,分层充填开采的利润增长或下降幅度最小,村庄搬迁方法的利润增长或下降幅度最大。村庄搬迁方法受2种因素的影响巨大,煤层越厚越有利于实施村庄搬迁方法,村庄人口越稀少,村庄搬迁的利润就越高。最后,总结了村庄下厚煤层开采方法选择时应遵循的原则。According to the question of a huge amount of thick coal seam under villages in China,layered filling mining,grouting filling in overburden bed- separation and caving zone fractured zone and new type of village relocation were proposed. By layered filling mining,the thick coal seam was divided into two layers or several layers,and which was mined with conventional filling mining method. Through grouting filling method,the filling slurry could be grouted into the bed- separation under key strata,gap around gangue and crevice in the caving zone fractured zone,and then the filling body was formed,which could control overlying strata activity. With the new type of village relocation,the sustainable developing and modern villages,to which the villages above no- mining coal seam were relocating,were established on the stable ground on mined- out werea,so the coal seam under villages was overall liberated. The analysis of the three methods＇ economic profits showed that the economic profits of three kinds of mining methods all had a growing trend with an increasing of coal seam thickness,and a declining trend with a growing of the village＇s population density. And the profits for layered filling mining had the smallest growth range or decline range,while profits for village relocation had the largest. Finally,the basic principles which should be followed when selecting mining methods for thick coal seam under villages were summarized.

关 键 词：村庄下厚煤层 分层充填开采 注浆充填 村庄搬迁新模式 人口密度 

分 类 号：TD823[矿业工程—煤矿开采]