岱庄煤矿矸石膏体充填模式研究与应用

随着我国煤炭事业的发展,"三下"压煤问题逐渐突出,如何更合理有效的开采村庄等建筑物下压煤已经成为煤炭行业重要的研究课题。根据煤矿绿色开采的发展要求,提出了采用矸石膏体充填进行建筑物下遗留条带煤柱开采。提出了"大步距隔离全部充填法",条带煤柱工作面每推进4～5m,沿工作面作隔离充填,通过系统论证,确定充填系统能力150m3/h。结合岩移观测,得到地表下沉最大值为58.2mm,地表下沉系数为0.08～0.10。

Research and application of coal gangue paste packing in Daizhuang mine

Along with the devopment of the coal,the issueel of coal mining under buildings,railways and water is becoming serious.How to make mining the coal more effective and reasonable under buildings railways and water has become an important research topic of the coal industry.According to the requirements of the development of green mining,coal gangue paste packing method was put forward by packing legacy strip pillar which are under the buildings.Big step from all the isolation filling method was used along the working face,when working face impelling 4~5 m.by theoretically analyzing,the filling system capacity is 150 m3/h.Combined with rock shift observation,the surface subsidence maximum is 58.2 mm,surface subsidence coefficient is 0.08~0.10.