鲁西南地区会宝岭铁矿床封闭不良钻孔的水源分析及止水技术

Water Source Analysis and Waterproofing Technology for Poorly Sealed Boreholes in Huibaoling Iron Deposit

摘要:

封闭不良钻孔涌水普遍存在于矿山之中，是矿山主要水害之一，本文以鲁西南会宝岭铁矿床为研究对象，通过水化学特征（Durov图）、水压（水位）、水量综合分析，封闭不良钻孔的充水水源主要为李官组裂隙水。结合岩石力学特征，提出了截水墙止水、钻孔中间截流泄压、分段泄压注浆止水相结合的防治水技术，并取得良好的治水效果，对类似矿山封闭不良钻孔的止水工作具有借鉴意义。

Abstract:

Water inflow from poorly sealed boreholes is common in most mines. It is one of the main water hazards in mines. Taking Huibaoling iron deposit in southwestern Shandong province as the research object, through comprehensive analysis of hydrochemical characteristics (Durov diagram), water pressure (water level) and water volume, it is concluded that main water source for poorly sealed boreholes is fissure water in Liguan formation. Based on the characteristics of rock mechanics, a water prevention and control technology combining cutoff wall water stop, mid hole water stop and pressure relief, and segmented pressure relief grouting water stop has been proposed. It has achieved good water control effects and has reference significance for water stop work in poorly sealed boreholes in similar mines.