上分层煤柱下的下分层综放开采技术实践与分析

Practice and analysis on fully mechanizaed caving technology in lower slice under higher slice coal pillar

通过上分层留设煤柱对下分层开采时的压力传递的理论分析,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。指出了该方法存在的问题和创新点及应用价值。

According to the theoretical analysis on pressure transfer from pillar leaving in top slice to lower slice when mining, measures of manual blasting coal pillar and strengthen support quality are taken before periodical weight and Model ZF-4600 light low caving support is used and good economic benefits was gained. Problems, innovation points and application value are pointed out.