Analysis of hydro-geological characteristics and prediction of water inflow in a certain mine area in Hechi,Guangxi
A certain mining area in Guangxi is taken as the research object to analyze the relevant hydro-geological conditions of the mining area. And the hydro-geological analogy method,Large well method,and modified large well method formulas are used to predict and compare the water inflow in the mining area. The results show that the hydraulic connection between the water-bearing rock groups is close,the fissure water in the fault fracture zone is obvious,and the karst fracture zone has great influence on the deposit mining. The north,east and west of the mining area are the water separation boundary,and the south is the permeable boundary. The groundwater runoff occurs and moves in the karst fissure,fault fracture zone and karst pipeline,and the confluence is concentrated in the north east and north west runoff zone for excretion. According to the Hydro-geological Comparison Method,the water gushing period,dry period and wet period of the mining area are 18 364. 72 m3/d、15 893. 31 m3/d,79 794. 11 m3/d respectively;Large Well Method is formula to predict the water inflow period,dry period and wet water period of 23 108. 90 m3/d、21 044. 15 m3/d、27 418. 04 m3/d respectively;The revised water inflow of Large Well leveling period,dry season and wet period is 16 028. 25 m3/d、15 421. 58 m3/d、23 485. 05 m3/d respectively. It shows that that the hydro-geological analogy method and the modified well method formula predict results more accurately and reasonably,which are in line with the expected results.
hydro-geologyprediction of water inflowlarge well methodhydro-logical analogy method
万方数据
维普
