STUDY ON OVERFLOW CHARACTERISTICS OF THIN-ANNULAR WEIRS

LIU Wei-zong; WANG Wen-hai; LI Jun-qi; JIA Gao-feng

doi:10.13205/j.hjgc.202006027

Volume 38 Issue 6

Aug. 2020

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Article Navigation > ENVIRONMENTAL ENGINEERING > 2020 > 38(6): 166-169,227

GONG Yong-wei, LIU Wei-xun, YU Lei, CHEN Ye. MULTI-OBJECTIVE OPTIMIZATION OF COMBINEDSEWER OVERFLOW CONTROL SYSTEM[J]. ENVIRONMENTAL ENGINEERING , 2020, 38(4): 128-133. doi: 10.13205/j.hjgc.202004023

Citation:

LIU Wei-zong, WANG Wen-hai, LI Jun-qi, JIA Gao-feng. STUDY ON OVERFLOW CHARACTERISTICS OF THIN-ANNULAR WEIRS[J]. ENVIRONMENTAL ENGINEERING , 2020, 38(6): 166-169,227. doi: 10.13205/j.hjgc.202006027

GONG Yong-wei, LIU Wei-xun, YU Lei, CHEN Ye. MULTI-OBJECTIVE OPTIMIZATION OF COMBINEDSEWER OVERFLOW CONTROL SYSTEM[J]. ENVIRONMENTAL ENGINEERING , 2020, 38(4): 128-133. doi: 10.13205/j.hjgc.202004023

Citation:

LIU Wei-zong, WANG Wen-hai, LI Jun-qi, JIA Gao-feng. STUDY ON OVERFLOW CHARACTERISTICS OF THIN-ANNULAR WEIRS[J]. ENVIRONMENTAL ENGINEERING , 2020, 38(6): 166-169,227. doi: 10.13205/j.hjgc.202006027

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STUDY ON OVERFLOW CHARACTERISTICS OF THIN-ANNULAR WEIRS

doi: 10.13205/j.hjgc.202006027

1. Key Laboratory of Urban Stormwater System and Water Environment, Ministry of Education, Beijing University of Civil Engineering and Architecture, Beijing 100044, China;
2. Beijing Advanced Innovation Center for Future Urban Design, Beijing 100044, China

Received Date: 2020-03-24

Abstract

Abstract

The overflow port is an important part of the runoff control facility, but the hydraulic characteristics of the overflow port are currently in shortage of specific research. The design formula of the overflow port in the stormwater management manual at home and abroad was incomplete, which was not sufficient to guide the design calculation. As a representative of the overflow port, the thin-annular weir could also be considered as a macroscopic expression of the 'confluence’. Its height and inner diameter were two geometric elements that characterize the flow-head relationship. The flow-head relationship in different heights and inner diameters was measured by laboratory tests. The results showed that the height of the weir had a certain influence on the overcurrent capability of the thin-annular weir. The dimensionless curve was drawn for the annular thin-walled concrete with different inner diameters, and the general formula was obtained. This research could provide reference for the design calculation of the overflow port in sponge city facilities.
- hydraulic characteristics,
- thin-annular weirs,
- overflow port,
- urban stormwater management,
- sponge city

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References(9)

References

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