广西河池某矿水文地质特征分析及涌水量预测  

Analysis of hydro-geological characteristics and prediction of water inflow in a certain mine area in Hechi,Guangxi

作　　者：李海豫 夏源[1] 邓忠 LI Hai-yu;XIA Yuan;DENG Zhong(Guilin University of Technology,College of environmental science and engineering,Guilin,Guangxi,541006,China;Guangxi Institute of Hydrogeology and Engineering Geology,Liuzhou,Guangxi,545000,China)

机构地区：[1]桂林理工大学环境科学与工程学院,广西桂林541006 [2]广西水文地质工程地质勘察院,广西柳州545006

出　　处：《地下水》2024年第4期6-9,共4页Ground water

摘　　要：以广西河池某矿区为研究对象,通过对矿区相关的水文地质条件进行分析,并采用水文地质比拟法、大井法和修正后大井法公式对矿区涌水量进行预测对比。结果表明:含水岩组之间水力联系密切,断层破碎带裂隙水发育明显,岩溶破碎带对矿床开采影响较大。矿区北、东以及西部为隔水边界,南部为透水边界。地下水径流赋存运移于岩溶裂隙、断层破碎带及岩溶管道中,汇流集中于北东、北西径流带进行排泄。水文地质比拟法的矿区平水期、枯水期及丰水期涌水量分别为18364.72 m^(3)/d、15 893.31 m^(3)/d、79 794.11 m^(3)/d;大井法用裘布依公式预测结平水期、枯水期及丰水期涌水量分别为23 108.90 m^(3)/d、21 044.15 m^(3)/d、27 418.04 m^(3)/d;修正后的大井法平水期、枯水期及丰水期涌水量分别为16 028.25 m^(3)/d、15 421.58 m^(3)/d、23 485.05 m^(3)/d。研究表明水文地质比拟法和修正后大井法公式预测结果更准确合理,符合预期结果。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 m~3/d、15 893.31 m~3/d,79 794.11 m~3/d respectively;Large Well Method is formula to predict the water inflow period,dry period and wet water period of 23 108.90 m~3/d、21 044.15 m~3/d、27 418.04 m~3/d respectively;The revised water inflow of Large Well leveling period,dry season and wet period is 16 028.25 m~3/d、15 421.58 m~3/d、23 485.05 m~3/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.

关 键 词：水文地质 涌水量预测 大井法 水文比拟法 

分 类 号：P641.41[天文地球—地质矿产勘探]