Abstract: Baixiangshan iron mine is an extreamly complex water-rich deposit. Its large faults, small insidious faults, joints and fissures, and the badly sealed drilling holes all contribute to water inrush that is endangering the mining. The longitudinal diagram of the east and west -495 m haulageways were drawn based on the available geological data. The paper highlights the analysis of the risk of water inrush when a haulageway pierces in the aquifer and intersects a fault, and the discussion of the technology of water exploration and control under high water pressure of fault. Meanwhile, direct and indirect blocking ways are proposed in view of the depth character, distribution and water inrush mechanism of badly sealed drilling holes, aiming to provide some references to the capital construction and ore extraction of Baixiangshan Iron Mine and in similar domestic mines.

Key words: Longitudinal diagram of haulageway, Water inrush of fault, Advanced water exploration, Badly sealed drilling holes