超化矿立井井筒过富水突出厚煤层施工技术

Construction Technology of Crossing Water-rich Thick Outburst Coal Seam in Air Shaft of Chaohua Colliery

在科学的瓦斯超前预测、抽放、揭煤等安全技术措施保障下,利用井圈、超前管棚注浆、锚网、锚索、钢筋混凝土联合支护工艺,加强顶底板交接面钢筋混凝土支护强度,保证了井筒施工质量,为井筒施工过特厚、质软、富水、突出煤层施工积累了工程经验。

Under the safety technical measures of scientific gas prediction ,drainage and uncovering coal ,the paper introduces the combined support technology with well loop ,pipe shed pre-grouting ,cable anchor and reinforced concrete ,which can guarantee the shaft construction quality by reinforcing the support strength of reinforced concrete at the interface of roof and floor ,and provide reference for crossing extra -thick ,soft ,water -rich and outburst coal seam in shaft construction .