萍乡市地下水特征与城市应急水源地优选  

Groundwater characteristics and preferred urban emergency water source in Pingxiang city

作　　者：万平强 万皓辉 余圣品 陈茜茜 WAN Ping-qiang;WAN Hao-hui;YU Sheng-pin;CHEN Qian-qian(Jiangxi Provincial Survey and Design Institute Co.,Ltd,Nanchang,Jiangxi 330095;Hydro-geological Brigade,Jiangxi Geological Bureau,Nanchang 330095,Jiangxi,China)

机构地区：[1]江西省勘察设计研究院有限公司,江西南昌330095 [2]江西省地质局水文地质大队,江西南昌330095

出　　处：《地下水》2024年第4期99-102,120,共5页Ground water

基　　金：江西省地质局局属科研项目:“江西省地下水应急水源地找水模式研究”(2023JXDZKJRC07);江西省科技厅与江西省地质局联合开展的“科技+地质”联合计划项目:“江西典型地下水源地资源评价关键技术与应急利用”(2023KDG01010)。

摘　　要：基于萍乡市地下水应急水源地需求调研成果,并依据地下水主要含水层类型、补径排规律、水质与水量等条件,结合区内钻探成果等资料,对萍乡市地下水特征及城市地下水应急水源地优选方法进行研究,结果表明:(1)萍乡市地下水划分为松散岩类孔隙水、红层孔隙裂隙水、碳酸盐岩类裂隙岩溶水和基岩裂隙水四种类型。(2)依据“城市规划、地下水富水性、水文地质单元、环境地质问题、土地利用、交通工程”选区原则,结合市域需求,圈定了彭高区(P1)、南坑-上埠区(P2)、下埠区(P3)3处萍乡市城区地下水应急水源地重点勘查区。(3)依据3处重点勘查区主要含水层类型、地下水蓄水构造、水质及水量等情况,优选了泉溪水源地、江下水源地、山田水源地、甘泉-胡家水源地共4处萍乡市城区地下水应急供水水源地。(4)优选的4处城区地下水应急水源地资源量在应急状态下可采资源量为4.10万t/d,正常状态下可采资源量为3.52万t/d,控制精度为“控制的(C级)+推断的(D级)+预测的(E级)”。研究结论可为后续其他设区市地下水应急水源地优选提供参考。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)”.

关 键 词：水文地质 萍乡市 应急水源地 地下水 

分 类 号：TU991.112[建筑科学—市政工程]