摘要
为查明济南市区泉水与西郊、东郊岩溶水的水力联系,从地层结构、水动力场角度,结合抽水试验、示踪试验和水化学分析等方法研究泉水与岩溶水之间的关系。结果表明,济南市区和西郊之间的刘长山—郎茂山—万灵山一带存在地下水径流通道。刘长山北侧槐苑广场—九中—十四中一带,在埋深350 m处揭露连续的岩溶含水地层,并存在垂向径流通道,市区泉水和西郊岩溶水通过刘长山北侧侵入岩体接触带以下的三山子组含水层连通。市区与东郊之间的燕翅山—七里河一带受舌状侵入岩体的影响,两侧地下水流场存在差异,但山东大学洪楼校区以北埋深485 m处揭露连续的岩溶含水地层,市区泉水和东郊岩溶水可通过侵入岩体接触带以下的三山子组含水层连通。水化学分析结果表明市区泉水与西郊、东郊岩溶水水化学类型一致,具有相同的演化环境。
In order to identify the hydraulic connection between the spring water in Jinan city and the karst water in the western and eastern suburbs,we conducted a study to analyze the hydraulic connection between the three from the perspective of stratigraphic structure and hydrodynamic field,combining with the restults of pumping tests and tracer tests.Meanwhile,we also performed hydrochemical and correlation analyses.The results show that from the perspective of stratigraphic structure,there is no obvious water-blocking structure in the area of Huaiyuan Square-NO.9 Middle School-NO.14 Middle School near the rock contact zone on the north side of Liuchang mountain between downtown and western suburbs,and a continuous karst aquifer group is developed below the rock body at a burial depth of about 350 m.The Chaomidian fracture on the west side has good water conductivity and the urban spring water and karst water in western suburbs can be hydraulically connected through the aquifer of Sanshanzi Formation below the rock contact zone.The tongue-shaped intrusive rock body exists in the area of Yanchi mountain-the Qili river between downtown and the eastern suburbs,which plays a certain role in blocking the karst water of downtown springs and eastern suburbs,but the Wenhuaqiao fracture does not form a water blocking structure,and the aquifers on both sides are less misshapen,and the distribution of karst aquifers to the east of the Wenhuaqiao fracture and south of Yaojia is continuous and stable.The karst aquifers are exposed at a depth of 485 m north of the Honglou Campus of Shanda University.The urban spring water and karst water in eastern suburbs have a unified water system,which can be hydraulically connected through the aquifer of Sanshanzi Formation below the contact zone of rock mass.The western borehole pumping test shows that the top plate of the aquifer in the areas of Huaiyuan Square-NO.9 Middle School-NO.14 Middle School is gradually deepened from south to north.Both the horizontal and vertical fissures in the in
作者
于令芹
林广奇
刘媛媛
齐欢
孟庆斋
马河宽
江露露
刘春伟
YU Lingqin;LIN Guangqi;LIU Yuanyuan;QI Huan;MENG Qingzhai;MA Hekuan;JIANG Lulu;LIU Chunwei(801 Institute of Hydrogeology and Engineering Geology,Shandong Provincial Bureau of Geology&Mineral Resources,Jinan,Shandong 250014,China;Shandong Engineering Research Center for Environmental Protection and Remediation on Groundwater,Jinan,Shandong 250014,China;Shandong Polytechnic College,Jining,Shandong 272067,China)
出处
《中国岩溶》
CAS
CSCD
北大核心
2023年第5期917-930,955,共15页
Carsologica Sinica
基金
国家自然科学基金项目(41772257)。
关键词
济南市区泉水
岩溶水
岩体接触带
径流通道
水力联系
地下水流场
演化环境
springs in Jinan
karst water
the contact zone of rock mass
channel of runoff
hydraulic connection
groundwater flow field
Evolutionary environment
