注浆加固技术在“三软”煤层底板治理中的应用

Application of grouting reinforcement technology in three soft coal seam floor control

针对煤矿巷道受水和软岩影响导致巷道底鼓、变形严重的问题,大唐陇东能源有限公司刘园子煤矿不断更改巷道支护工艺,将"三软"地层巷道底板治理作为重点,采用注浆加固配合底板浇筑的支护方式,底板底鼓变形量控制在30 mm内,效果显著,为甘肃东部同类地质条件提供借鉴。

Based on roadway floor heave and serious deformation affected by water and soft rock,Liuyuanzi Mine took three soft roadway floor control as study object to improve the support technology,grouting reinforcement with bottom slab?concreting,the floor heave deformation was controlled in 30 mm,with good effect,providing reference for similar geological conditions in eastern Gansu Province.