Influence of Underground Space Development on Groundwater Flow Field in Su-Xi-Chang Area
Song Yun
Xu Jie
Xu Shugang
Jiang Xue
Gong Xulong
Wu Yuequan
Sun Ziyong
Abstract：Quantitative research on the impact of urban underground space development on groundwater environment has important theoretical and practical significance for rational development and accurate management of urban underground space.In this paper it discusses the influence of urban underground space development on groundwater flow in Su-Xi-Chang area.Based on construction of the hydrogeological conceptual model of Su-Xi-Chang area,the groundwater flow numerical model was established.Based on the corrected groundwater flow numerical model,the influence of subway operation on groundwater flow was predicted.Due to the obstruction of underground runoff by subway,the upstream groundwater level increases by 0-0.4 m,while the backwater level decreases by 0-0.8 m,increasing the hydraulic gradient in the range of 17.56 km.After the subway is put into operation,the variation in groundwater level near the subway is larger in the first five years and smaller in the second five years.The direction of groundwater runoff changes locally,but the regional direction does not change significantly.
Keywords：Su-Xi-Chang areaunderground space developmentnumerical model of groundwater flowground flow fieldhydrogeology
Publication Date：2025-11-30
Online Publishing Date：2025-12-15(First online date of this platform, not the publication date of the document)
Pages：11( 4540-4550 )