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Numerical Simulation for Water Inrush in the University City Tunnel in the Chongqing City, Southwestern China
Water inrush has become a significant disaster in the karst tunnel construction. The University City tunnel crosses the Zhongliang Mountain where karst strata are well developed in the Chongqing city, southwest China. This study simulated the groundwater seepage field in the natural and construction conditions by visual Modflow software. Groundwater flows from north to south in natural condition. With the tunnel excavation face as the center, a falling funnel with a large influence range is formed, and the excavated tunnel becomes the local discharge datum. Then, the groundwater flow direction from north to south has changed to the tunnel as the center of the confluence, and the groundwater level in the anticlinal core area has further decreased. The volume of water inrush was estimated. The simulation results are similar to the actual tunnel water influx results obtained from the calculation. Our goal is aimed to simulate the changes in hydrogeological conditions after the tunnel construction and predict the amount of water surge in the tunnel. The achievements of our study would provide a vital reference for groundwater management and protection in the karst tunnel construction.
Numerical Simulation for Water Inrush in the University City Tunnel in the Chongqing City, Southwestern China
Water inrush has become a significant disaster in the karst tunnel construction. The University City tunnel crosses the Zhongliang Mountain where karst strata are well developed in the Chongqing city, southwest China. This study simulated the groundwater seepage field in the natural and construction conditions by visual Modflow software. Groundwater flows from north to south in natural condition. With the tunnel excavation face as the center, a falling funnel with a large influence range is formed, and the excavated tunnel becomes the local discharge datum. Then, the groundwater flow direction from north to south has changed to the tunnel as the center of the confluence, and the groundwater level in the anticlinal core area has further decreased. The volume of water inrush was estimated. The simulation results are similar to the actual tunnel water influx results obtained from the calculation. Our goal is aimed to simulate the changes in hydrogeological conditions after the tunnel construction and predict the amount of water surge in the tunnel. The achievements of our study would provide a vital reference for groundwater management and protection in the karst tunnel construction.
Numerical Simulation for Water Inrush in the University City Tunnel in the Chongqing City, Southwestern China
Lecture Notes in Civil Engineering
Zhang, Yunhui (editor) / Liu, Maoyi (author) / Wu, Daifeng (author) / Jiang, Xin (author) / Liu, Yang (author) / Zheng, Xuqiang (author) / Zhang, Zhixiong (author) / Xia, Jingquan (author) / Yang, Zhichao (author)
International Symposium on Water Pollution and Treatment ; 2022 ; Bangkok, Thailand
2023-09-12
11 pages
Article/Chapter (Book)
Electronic Resource
English
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