Abstract:This paper analyses the water level variation characteristics of Jiufeng well during the construction of Wuhan metro line 19. Based on engineering geology, hydrogeology, core and hydrochemical data, we find that the water quality of Jiufeng well is basically the same as that of surface water. Hydrogen and oxygen isotope analysis shows that Jiufeng well is mainly recharged by atmospheric precipitation and is closely related to surrounding surface water. It can be proven that large amount of drainage during the construction of Wuhan metro has a great influence on the stagnant water and phreatic water of the surrounding upper layer, thus causing the decline of water level of Jiufeng well. Based on the technical requirement for the observational environment of seismic stations, we analyze the influence of subway construction on groundwater environment and station fluid observation, and give some new understandings about fluid station selection.
WENG Cheng,WANG Jie,SHU Deliang et al. Influence of Subway Construction on Fluid Observation Based on Jiufeng Well Hydrochemical Characteristics[J]. jgg, 2023, 43(7): 767-770.