Groundwater characteristics and preferred urban emergency water source in Pingxiang city
Based on the results of the research on the demand for emergency water source in Pingxiang City,and according to the main aquifer types of groundwater,the law of replenishment and discharge,water quality and water quantity and other conditions,combined with the drilling results in the area and other information,the characteristics of the groundwater in Pingxiang City and the preferred method of the city's emergency water source for groundwater are studied,and the results show that:(1)Groundwater in Pingxiang City is divided into four types:loose rock-like pore water,red layer pore and fissure water,carbonate rock-like fissure karst water and bedrock fissure water.(2)According to the" urban planning,groundwater richness,hydro-geological unit,environmental geological problems,land use,traffic engineering"principles of selection,combined with the needs of the city,circled Panggao District( P1),Nankeng-Shangbu District( P2),Xiabu District( P3),three Pingxiang City urban areas of groundwater emergency water source focus on the investigation area. ( 3)Based on the main aquifer types,groundwater aquifer structure,water quality and water quantity of the three key investigation areas,four emergency water supply sources for groundwater in urban areas of Pingxiang City,namely,Quanxi water source,Jiangxia water source,Shantian water source and Ganquan-Hujia water source,were preferred.(4)The resources of the four preferred urban groundwater emergency sources are 41 000 tonnes per day under emergency conditions and 35 200 tonnes per day under normal conditions,with a control accuracy of" controlled( level C)+inferred( level D)+predicted( level E)".
hydro-geologyPingxiang Cityemergency water sourceunderground water
万方数据
维普
