Abstract:

 Based on the hydrogeological survey，hydrogeological drilling，borehole integrated hydrological logging，drilling and pumping tests，combined with regional geological，hydrological and meteorological data，the basic identification of hydrogeological conditions in the mining area was conducted.Mainly containing water rock layer  in the area was divided to the Quaternary loose rock pore aquifer，granite weathering fracture aquifer and structural fracture rock cranny aquifer.Direct factors of the mine water filling is the structural fissure water and indirect factors are weathering fissure water and Quaternary pore water in loose rock.The analogy，big well method and horizontal corridor were used in mine water filling forecast.Except the analogy method which with larger result，the calculated results of big well method and horizontal corridor are very close，indicating that the method and data is reasonable in this work，also providing indirect proof  that the infiltration parameters analysis is reasonable.

Key words: maritime gold deposit, aquifer；structure, mine water filling, prediction of water inflow, Sanshandao