Impact of the Depth of Diaphragm Wall on the Groundwater Drawdown during Foundation Dewatering Considering Anisotropic Permeability of Aquifer

Foundation dewatering combined with a waterproof curtain is widely applied to ensure the safety of foundation pit in areas multi-aquifer–aquitard alternative strata. The buried depth diaphragm wall can influence environmental effect due obviously. This paper investigates impact on groundwater drawdown considering anisotropic permeability aquifer. Numerical simulation conducted based an engineering case. ratio penetrating thickness aquifer (RW) and horizontal vertical hydraulic conductivity (RC) are varied. relationship between approximate gradient (?i) RW (or RC) be fitted by Boltzmann curve logarithmic curve). Effective, suggested control values proposed, which value recommended practical engineering. effective, calculated logarithmical equation RC.