沿空留柱墙无煤柱开采技术的应用

Practical Application of Pillar Wall Mining Technology Without Coal Pillars along the Empty Space

王庄煤矿在采掘接续无法满足沿空留巷两进一回“Y”型通风布置的情况下,应用大断面巷道掘进、泵送巷旁充填和深孔爆破预裂技术,实施沿空留柱墙、沿柱墙掘进无煤柱开采,取得了良好的经济效益。可为类似条件大采高工作面无煤柱开采提供借鉴经验。

In the situation where the continuous mining of Wangzhuang coal mine cannot meet the Y-shaped ventilation layout of two entry and one return along the goaf,the large section roadway excavation,pumping roadway side filling,and deep hole blasting pre splitting technology were applied to implement pillar wall excavation along the goaf and pillar wall excavation without coal pillars,achieving good economic benefits.This can provide reference experience for non pillar mining in high mining face under similar conditions.