地表预注浆技术治理田兴铁矿井筒涌水

Surface Pre-grouting for Governing Water Burst in Shaft of Tianxing Iron Mine

利用"S"型钻孔技术对田兴铁矿2#副井实行地表预注浆,在后期实现地表预注浆与井筒施工的平行作业。地表预注浆技术在田兴铁矿的成功应用,为治理复杂地质条件下的井筒涌水和加快井筒施工速度提供了技术和经验。

With “ 5”type drilling technology ： pre-grouting ii＇om surface was carried out tbr 2# auxiliary shait in Tianxing Iron Mine, which would be a parallel operation with shaft excavation in the later stage. The successful application of this technology into Tianxing Iron Mine provides both technology and experience for governing water burst under complicated geological conditions, but also accelerates shaft construction.