Numerical Simulation of Land Subsidence Caused by Both Dewatering and Recharging
- 122 Downloads
The groundwater recharge was conducted to prevent land subsidence in many major cities such as Beijing, Shanghai and Tianjin in China. Specifically, the use of recharging to prevent ground subsidence in foundation pit projects has become a popular technique. In this paper, the numerical simulation was used to study the influence of the distance between the recharging well and the dewatering well on the land subsidence. The results show that the appropriate distance between the recharging well and the dewatering one is favorable to prevent subsidence.
KeywordsLand subsidence Numerical simulation Dewatering Groundwater recharge
This work was funded by National Key R&D Program of China (2016YFC0600904).
- 1.Powrie, W., Roberts, T.O.L.: Case history of a dewatering and recharge system in chalk. Géotechnique 45(4), 599–609 (1995)Google Scholar
- 5.Yu, J.L., Gong, X.N.: Study on the design and the application of the groundwater recharge system in excavation. J. Build. Struct. 22(5), 70–74 (2001)Google Scholar
- 6.Wang, J.X., Wu, Y.B., Zhang, X.S.: Field experiments and numerical simulations of confined aquifer response to multi-cycle recharge–recovery process through a well. J. Hydrol. 464/465, 328–343 (2012)Google Scholar