高富水构造带超深立井防治水技术

Water Prevention and Control Technology of Ultra Deep Vertical Shaft in High Water-rich Structure Zone

随着立井开采深度的逐渐增加,岩石赋存环境更加复杂,高富水构造带诱发井筒突水或大涌水几率较大,从而导致淹井事故发生。云南会泽3号立井深1 526m。通过对井筒地质勘察资料及现场揭露岩性的分析,对主要含水层发生突水或大涌水区域进行预测,提出并采取了行之有效的综合防治水措施,实现了"打干井",确保了工程质量和施工安全,加快了施工进度。

With the mining depth of the vertical shaft steadily increased,the rock deposition environment would be more complicated,the high water-rich structure zone would induce a high probability to cause a water inrush or a high water inflow in the shaft and thus a shaft flooding accident would be occurred.Yunnan Huize No.3 vartical shaft had a depth of 1 526 m.With an analysis on the geological exploration information and the site exposed lithology of the shaft,a prediction was conducted on the water inrush or high water inflow area occurred in the main aquifer.The effective and comprehensive water prevention and control measures were provided and conducted.A “dry shaft sinking” was released,the engineering quality and construction safety were ensured and the construction schedule was speeded up.