DU Zuo dao,MA Ji,XU Xiao ming.Reasoning Formula under Pressure Flow Conditions[J].China Water & Wastewater,2018,34(21):123-126.
Click Copy

Reasoning Formula under Pressure Flow Conditions

China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU] volume: 第34卷 Number: 21 Page: 123-126 Column: Date of publication: 2018-10-20
Article number:
1000-4602(2018)21-0123-04
Author(s):
DU Zuo dao; MA Ji; XU Xiao ming
(Urban Planning & Design Institute of Zhuhai, Zhuhai 519001, China)
Keywords:
pipeline; submerged discharge; uniform flow; inhomogeneous flow; reasoning formula of steady flow
CLC:
TU992
Document code:
C
Abstract:
In coastal region or lowlying area, it is very common that the crest elevation of the pipe outlet is lower than the designed flood level. However, the current reasoning formula of steady flow is based on the uniform flow. To overcome the limitation, a new method was proposed by using the hydraulic gradient to resolve reasoning formula of steady flow, instead of the gradient at the bottom of pipe. The new method could accurately calculate the design flow of rainwater under pressure flow conditions. Meanwhile, similar to the mathematical model, the proposed method could demonstrate the water level of the inspection wells along the pipeline and determine the presence of the overflow or surface ponding.

References:


［1］张兆祥,杨帆,王大春. 淹没出流雨水管道应对内涝设计探讨［J］. 中国给水排水,2016,32(1):83-85,89. Zhang Zhaoxiang,Yang Fan,Wang Dachun. Discussion on design of rainwater pipe responding to local flooding at submerged discharge［J］. China Water & Wastewater,2016,32(1):83-85,89(in Chinese).
［2］李贞子,车伍,赵杨. 我国古代城镇道路大排水系统分析及对现代的启示［J］. 中国给水排水,2015,31(10):1-7. Li Zhenzi,Che Wu,Zhao Yang. Analysis of major drainage system of urban road in ancient China and its modern enlightenment［J］. China Water & Wastewater,2015,31(10):1-7(in Chinese).
［3］刘阳,刘颖华,刘滋菁,等. 基于LID理念的透水路面生态效益研究进展［J］. 中国给水排水,2017,33（2）：37-41. Liu Yang,Liu Yinghua,Liu Zijing,et al. Progress in research on ecological benefits of permeable pavement based on LID concept［J］. China Water & Wastewater,2017,33（2）：37-41（in Chinese）.
［4］刘建,李四新,陈慧,等. 市政道路低影响开发设施设计案例分析［J］. 中国给水排水,2017,33（4）：14-19. Liu Jian,Li Sixin,Chen Hui,et al. Case study of low impact development facilities for municipal roads［J］. China Water & Wastewater,2017,33（4）：14-19（in Chinese）.
［5］洪军,靳俊伟,程巍,等. 重庆海绵城市建设规划层面的控制指标量化探索［J］. 中国给水排水,2016,32（21）：152-155. Yin Hongjun,Jin Junwei,Cheng Wei,et al. Quantification of control index at planning stage：Case study of Yuelai New Town,Chongqing ［J］. China Water & Wastewater,2016,32（21）：152-155（in Chinese）.

Memo

作者简介：李俊（1990- ），男，江西南丰人，硕士研究生，主要从事给排水系统优化技术研究。
E-mail:914845646@qq.com
收稿日期：2018-03-30

Last Update: 2018-11-01