Factors affecting the hydraulic performance of infiltration based SUDS in clay

Britta Bockhorn; Knud Erik S. Klint; Luca Locatelli; Young-Jin  Park; Philip John Binning; Ed Sudicky; Marina Bergen Jensen

doi:10.1080/1573062X.2015.1076860

Factors affecting the hydraulic performance of infiltration based SUDS in clay

Britta Bockhorn, Knud Erik S. Klint, Luca Locatelli, Young-Jin Park, Philip John Binning, Ed Sudicky, Marina Bergen Jensen

Landscape Architecture and Planning

11 Citations (Scopus)

Abstract

The influence of small scale soil heterogeneity on the hydraulic performance of infiltration based sustainable urban drainage systems (SUDS) was studied using field data from a clayey glacial till and groundwater simulations with the integrated surface water and groundwater model HydroGeoSphere. Simulations of homogeneous soil blocks with hydraulic properties ranging from sand to clay showed that infiltration capacities vary greatly for the different soil types observed in glacial till. The inclusion of heterogeneities dramatically increased infiltration volume by a factor of 22 for a soil with structural changes above and below the CaCO3 boundary. Infiltration increased further by 8% if tectonic fractures were included and by another 61% if earthworm burrows were added. Comparison of HydroGeoSphere infiltration hydrographs with a simple soakaway model (Roldin et al., 2012) showed similar results for homogeneous soils but indicated that exclusion of small scale soil physical features may greatly underestimate hydraulic performance of infiltration based SUDS.

Original language	English
Journal	Urban Water Journal
Volume	14
Issue number	2
Number of pages	9
ISSN	1573-062X
DOIs	https://doi.org/10.1080/1573062X.2015.1076860
Publication status	Published - 7 Feb 2017

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10.1080/1573062X.2015.1076860

Cite this

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title = "Factors affecting the hydraulic performance of infiltration based SUDS in clay",

abstract = "The influence of small scale soil heterogeneity on the hydraulic performance of infiltration based sustainable urban drainage systems (SUDS) was studied using field data from a clayey glacial till and groundwater simulations with the integrated surface water and groundwater model HydroGeoSphere. Simulations of homogeneous soil blocks with hydraulic properties ranging from sand to clay showed that infiltration capacities vary greatly for the different soil types observed in glacial till. The inclusion of heterogeneities dramatically increased infiltration volume by a factor of 22 for a soil with structural changes above and below the CaCO3 boundary. Infiltration increased further by 8% if tectonic fractures were included and by another 61% if earthworm burrows were added. Comparison of HydroGeoSphere infiltration hydrographs with a simple soakaway model (Roldin et al., 2012) showed similar results for homogeneous soils but indicated that exclusion of small scale soil physical features may greatly underestimate hydraulic performance of infiltration based SUDS.",

author = "Britta Bockhorn and Klint, {Knud Erik S.} and Luca Locatelli and Young-Jin Park and Binning, {Philip John} and Ed Sudicky and Jensen, {Marina Bergen}",

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T1 - Factors affecting the hydraulic performance of infiltration based SUDS in clay

AU - Bockhorn, Britta

AU - Klint, Knud Erik S.

AU - Locatelli, Luca

AU - Park, Young-Jin

AU - Binning, Philip John

AU - Sudicky, Ed

AU - Jensen, Marina Bergen

PY - 2017/2/7

Y1 - 2017/2/7

N2 - The influence of small scale soil heterogeneity on the hydraulic performance of infiltration based sustainable urban drainage systems (SUDS) was studied using field data from a clayey glacial till and groundwater simulations with the integrated surface water and groundwater model HydroGeoSphere. Simulations of homogeneous soil blocks with hydraulic properties ranging from sand to clay showed that infiltration capacities vary greatly for the different soil types observed in glacial till. The inclusion of heterogeneities dramatically increased infiltration volume by a factor of 22 for a soil with structural changes above and below the CaCO3 boundary. Infiltration increased further by 8% if tectonic fractures were included and by another 61% if earthworm burrows were added. Comparison of HydroGeoSphere infiltration hydrographs with a simple soakaway model (Roldin et al., 2012) showed similar results for homogeneous soils but indicated that exclusion of small scale soil physical features may greatly underestimate hydraulic performance of infiltration based SUDS.

AB - The influence of small scale soil heterogeneity on the hydraulic performance of infiltration based sustainable urban drainage systems (SUDS) was studied using field data from a clayey glacial till and groundwater simulations with the integrated surface water and groundwater model HydroGeoSphere. Simulations of homogeneous soil blocks with hydraulic properties ranging from sand to clay showed that infiltration capacities vary greatly for the different soil types observed in glacial till. The inclusion of heterogeneities dramatically increased infiltration volume by a factor of 22 for a soil with structural changes above and below the CaCO3 boundary. Infiltration increased further by 8% if tectonic fractures were included and by another 61% if earthworm burrows were added. Comparison of HydroGeoSphere infiltration hydrographs with a simple soakaway model (Roldin et al., 2012) showed similar results for homogeneous soils but indicated that exclusion of small scale soil physical features may greatly underestimate hydraulic performance of infiltration based SUDS.

U2 - 10.1080/1573062X.2015.1076860

DO - 10.1080/1573062X.2015.1076860

M3 - Journal article

SN - 1573-062X

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