Source Jouranl of CSCD
Source Journal of Chinese Scientific and Technical Papers
Included as T2 Level in the High-Quality Science and Technology Journals in the Field of Environmental Science
Core Journal of RCCSE
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Indexed in World Journal Clout Index (WJCI) Report
XING Ding-yu, TAO Si-yi, ZHANG Xiao-lei, PAN Xian-hui, DONG Wen-yi, YOU Jing, SUN Fei-yun. WATER FOOTPRINT EVALUATION OF TYPICAL SEAWATER DESALINATION SYSTEMS[J]. ENVIRONMENTAL ENGINEERING , 2021, 39(7): 88-93. doi: 10.13205/j.hjgc.202107010
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

STUDY ON OVERFLOW CHARACTERISTICS OF THIN-ANNULAR WEIRS

doi: 10.13205/j.hjgc.202006027
  • Received Date: 2020-03-24
  • 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.
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    HUMPHREYS H W, SIGURDSSON G, OWEN H J. Model test results of circular, square and rectangular forms of drop-inlet entrance to closed-conduit spillways[R]. Report of Investigation No. 65. Champaign, IL: Illinois State Water Survey,1970.
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    李稳坐,邱勇,尹韬,等.基于堰流基本公式的W型迷宫堰过流能力拟合分析[J].人民珠江,2017,38(7):69-72.
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