Formation and Control of Self-Sealing High Permeability Groundwater Mounds in Impermeable Sediment: Implications for SUDS and Sustainable Pressure Mound Management

摘要: A groundwater mound (or pressure mound) is defined as a volume of fluid dominated by viscous flow contained within sediment where the dominant Knudsen Diffusion. High permeability self-sealing mounds can be created part sustainable urban drainage scheme (SUDS) using infiltration devices. This study considers how they form, and models their expansion growth function device recharge. The grow through lateral macropore propagation Dupuit envelope. Excess relief propagating vertical surge shafts. These shafts can, when intersect ground surface result, in high overland flow. that creation matrix supported (clayey) sediments (intrinsic = 10–8 to 10–30 m3 m–2 s–1 Pa–1) low cost, method which used dispose large volumes storm runoff (