重庆轨道新建中梁山隧道地下水动态与地下水文环境恢复预测研究  

Research on groundwater dynamics and prediction of groundwater environment restoration in the newly built Zhongliangshan tunnel of Chongqing rail transit

作　　者：冉广 RAN Guang(Chongqing Railway Group Co.,Ltd.,Chongqing 401120,China)

机构地区：[1]重庆市铁路集团有限公司,重庆401120

出　　处：《中国科技论文在线精品论文》2024年第4期673-677,共5页Highlights of Sciencepaper Online

摘　　要：本研究以重庆轨道交通二期工程新建中梁山隧道为研究对象,探讨新建中梁山隧道施工对地下水系统的动态影响及建成后水文环境的恢复预测。通过地质勘探和GMS-MODFLOW数值模拟,深入分析施工期间地下水位的变化和水流动态,揭示隧道施工对周边地下水环境产生的显著影响。研究表明,隧道施工期间的排水作用导致沿隧道轴线形成了降落漏斗。随后,利用模型预测了隧道建成后地下水流场的恢复过程,研究表示区域水流场可能需要长达10年的时间才能基本恢复,隧道周边可能仍存在约20 m深的降落漏斗。This study takes the newly-built Zhongliangshan Tunnel of Chongqing Rail Transit Phase II Project as the research object,aiming to explore the dynamic impact of the construction of the new Zhongliangshan Tunnel on the groundwater system and the restoration prediction of the hydrological environment after completion.Through geological exploration and GMS-MODFLOW numerical simulation,the changes in groundwater level and water flow dynamics during construction were analyzed in depth,revealing the significant impact of tunnel construction on the surrounding groundwater environment.Research has shown that the drainage effect during tunnel construction leads to the formation of a falling funnel along the tunnel axis.Subsequently,the model was used to predict the recovery process of the groundwater flow field after the tunnel was built,and it may take up to 10 years for the water flow field in the study area to recover basically.However,there may still be a landing funnel about 20 meters deep around the tunnel.

关 键 词：地质学 地质工程 中梁山隧道 地下水动态 地下水文环境 恢复预测 

分 类 号：P641.2[天文地球—地质矿产勘探]