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文章通过上分层留设煤柱对下分层开采时的压力传递作了理论分析,采取周期来压前人工爆破煤柱和加强支架支护质量的措施,使用ZF-4600轻型低放支架开采取得了良好的经济效益,为其他下分层边角煤的开采提供了借鉴经验。
The article analyzes the pressure transmission during the lower stratified mining by stratified left coal pillar and adopts the method of periodically blasting the coal pillar and strengthening the supporting quality of the strut, and adopts the ZF-4600 light low-gravity scaffold mining Achieved good economic benefits, and provided reference experiences for the exploitation of other lower stratified coal.