采用超前钻孔注浆过破碎区的支护技术

Supporting Technology of Passing through Broken Districts by Pilot Boreholes Grouting

针对矿山压力较大矿井存在一旦暴露就易垮落的松散围岩,采用快速有效的超前钻孔注浆加固,形成再生假顶,从而实现调动围岩自承力的内注外锚加固技术,是一种安全上可靠、技术上可行、经济上合理、较强,推广前景远的支护技术。

Under bigger ground pressure, once exposed in the air, loose surrounding rocks are likely to collapse. The fast and effective pilot boreholes grouting support was used to form reproducing roof strata and to realize automatic surrounding rocks＇ bolting-exterior-and-grouting-interior technology, which is reliable, feasible, and promising supporting technology.