复杂水文地质条件下的大巷煤柱开采技术研究

老空水从东、西、北三个方向包围大巷下山煤柱段,煤柱回收过程中水文地质条件非常复杂。为了减少水文地质损失,提高煤柱开采安全系数,采用综合防治水措施,将老空水按照规定的路线运移、排放,满足了安全生产需要;为了最大限度地开采煤炭资源,采用煤柱开采的优化设计,实现了精采细收,延长了矿井服务年限。对大面积老空水三面包围的大巷下山煤柱开采技术的研究,为衰老矿井的可持续发展提供了技术支持,同时,为复杂水文地质条件下开采煤柱的相似矿井提供技术经验数据。

Research of Mining Technology of Roadway Pillar in Complex Hydrogeological Conditions

The goaf water has been surrounded mining area down lane section of coal pillar in three directions from the East,West,North,it is very complex hydrogeological conditions in pillar recovery process.To reduce the loss of hydro-geological,improve the safety factor pillar mining,integrated prevention and control measures for the goaf water according to the provisions of the old migration routes,emissions,meet the safety needs of;In order to maximize the exploitation of coal resources,using the optimal design of pillar mining,to achieve a brilliant fine collection,extend the service life of the mine.Research to roadway down pillar mining technology by a large area of goaf water on three sides surrounded,for aging mine of sustainable development has provided technical support,at the same time,for similar mine of complex hydrogeological conditions and coal mining technology provide technical experience column data.