Abstract
Optimal sizing of exfiltration trenches for both flood control and water-quality control is investigated for conventional and partially submerged trenches. An analytic formulation is presented, showing that the minimum required trench length for flood control can be determined directly from parameters that characterize the design rainfall, catchment, trench, and porous medium surrounding the trench. It is also shown that the minimum required trench length for water-quality control can be determined directly from the design water-quality depth, exfiltration time that is credited to water-quality control, and parameters that characterize the trench and catchment. Using these analytic relationships, a six-step procedure is presented for sizing trenches that simultaneously meet both flood-control and water-quality control objectives. Implementation of the design methodology is illustrated for both conventional and partially saturated trenches.
| Original language | English (US) |
|---|---|
| Article number | 04016074 |
| Journal | Journal of Irrigation and Drainage Engineering |
| Volume | 143 |
| Issue number | 1 |
| DOIs | |
| State | Published - Jan 1 2017 |
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Keywords
- Drainage
- Flood control
- Stormwater management
- Water-quality control
ASJC Scopus subject areas
- Civil and Structural Engineering
- Water Science and Technology
- Agricultural and Biological Sciences (miscellaneous)
Cite this
Optimal sizing of exfiltration trenches. / Chin, David A.; Jones, Athena.
In: Journal of Irrigation and Drainage Engineering, Vol. 143, No. 1, 04016074, 01.01.2017.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Optimal sizing of exfiltration trenches
AU - Chin, David A.
AU - Jones, Athena
PY - 2017/1/1
Y1 - 2017/1/1
N2 - Optimal sizing of exfiltration trenches for both flood control and water-quality control is investigated for conventional and partially submerged trenches. An analytic formulation is presented, showing that the minimum required trench length for flood control can be determined directly from parameters that characterize the design rainfall, catchment, trench, and porous medium surrounding the trench. It is also shown that the minimum required trench length for water-quality control can be determined directly from the design water-quality depth, exfiltration time that is credited to water-quality control, and parameters that characterize the trench and catchment. Using these analytic relationships, a six-step procedure is presented for sizing trenches that simultaneously meet both flood-control and water-quality control objectives. Implementation of the design methodology is illustrated for both conventional and partially saturated trenches.
AB - Optimal sizing of exfiltration trenches for both flood control and water-quality control is investigated for conventional and partially submerged trenches. An analytic formulation is presented, showing that the minimum required trench length for flood control can be determined directly from parameters that characterize the design rainfall, catchment, trench, and porous medium surrounding the trench. It is also shown that the minimum required trench length for water-quality control can be determined directly from the design water-quality depth, exfiltration time that is credited to water-quality control, and parameters that characterize the trench and catchment. Using these analytic relationships, a six-step procedure is presented for sizing trenches that simultaneously meet both flood-control and water-quality control objectives. Implementation of the design methodology is illustrated for both conventional and partially saturated trenches.
KW - Drainage
KW - Flood control
KW - Stormwater management
KW - Water-quality control
UR - http://www.scopus.com/inward/record.url?scp=85009350771&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85009350771&partnerID=8YFLogxK
U2 - 10.1061/(ASCE)IR.1943-4774.0001111
DO - 10.1061/(ASCE)IR.1943-4774.0001111
M3 - Article
AN - SCOPUS:85009350771
VL - 143
JO - Journal of Irrigation and Drainage Engineering
JF - Journal of Irrigation and Drainage Engineering
SN - 0733-9437
IS - 1
M1 - 04016074
ER -