Representing soakaways in a physically distributed urban drainage model – Upscaling individual allotments to an aggregated scale

Determining the extent of groundwater interference on the performance of infiltration trenches

“…(1999) and Roldin et al (2012b) and includes no groundwater interaction and so is referred to as the is here referred to as 'Model with Mounding'(MM). Table 1 summarizes the parameters of the 2 118 models.…”

Factors affecting the hydraulic performance of infiltration based SUDS in clay

“…Geological data characterizing a clayey till were employed with the discrete fracture model HydroGeoSphere (Therrien et al 2009, Aquanty Inc. 2013 in simulations of variably saturated flow. Infiltration rates of four different homogenous soils were in a first step compared to infiltration rates produced with a simple soakaway model by Roldin et al (2012) to investigate whether the soakaway model works well for homogeneous conditions. In a second step infiltration rates of the homogenous soils were compared to infiltration rates obtained in structured, macroporous soils.…”

“…The infiltration rates and emptying times simulated by HydroGeoSphere were compared to those obtained by the simple soakaway model presented by Roldin et al (2012). The model of Roldin et al (2012) is based on the soakaway mass balance:…”

“…Methods are available to account for soil heterogeneity in models in order to simulate the performance of stormwater infiltration based SUDS (e.g. Roldin et al 2012) but their performance is dependent on the accuracy of the input data and often hydrogeological models lack sufficient geological information (e.g. Hansen et al 2013).…”

Techno-Economic Analysis of Hybrid Drainage Systems in South Australia

“…Leaky wells, used in small scale residential sites, consist of large diameter perforated pipes or wells that allow infiltration of stormwater into the surrounding soils [13]. Soakaways are also underground infiltration structures filled with materials such as gravel or sand and perforated plastic pipes; they provide temporary storage for stormwater runoff from roofs and allow infiltration of stormwater into the surrounding soils [14]. Infiltration trenches consist of excavations that are 0.5 to 1.5 m deep, filled with gravel or modular plastic cells; these are lined with geo-textile cloth and backfilled to a depth of around 0.3 m [15].…”