Many water companies in China are developing GIS as a computer-based tool, for mapping and analyzing objects and events that happen on a water distribution network. However, only a few companies have taken a further step to develop a hydraulic model based on GIS, and Zhengzhou Water Supply Corporation is one of them. The WaterGEMS V8 XM from Bentley is used to develop the hydraulic model for the water distribution network in Zhengzhou city, which has a population of over 3 million. During establishment of the model, some of the data extracted from GIS are missing, abnormal, and redundant and require careful screening, searching, and judging. Model calibration is performed after a sensitivity analysis. Peaking factor and pipe roughness coefficient are key model parameters to calibrate. In calibrating peaking factors, the distribution system is divided into 5 operation districts with different types of water usage. To calibrate pipe roughness coefficients, the system was divided into 4 water supply districts with different attributes of pipelines. Finally, a case study of pipe layout evaluation it shows the hydraulic model to be a powerful tool for water supply management.
Skip Nav Destination
Article navigation
Research Article|
September 01 2011
A GIS-based water distribution model for Zhengzhou city, China Available to Purchase
Hou Yu-Kun;
1School of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai, China
E-mail: [email protected]
Search for other works by this author on:
Zhao Chun-Hui;
Zhao Chun-Hui
2Zhengzhou Water Supply Corporation, Zhongyuan West Road NO. 67, Zhengzhou, Henan, China
Search for other works by this author on:
Huang Yu-Chung
Huang Yu-Chung
3Energy Management System Co., Ltd., No. 8, Dali 3rd Road, Shanhua Township, Tainan County, Taiwan
Search for other works by this author on:
Water Supply (2011) 11 (4): 497–503.
Article history
Received:
June 10 2010
Accepted:
August 03 2010
Citation
Hou Yu-Kun, Zhao Chun-Hui, Huang Yu-Chung; A GIS-based water distribution model for Zhengzhou city, China. Water Supply 1 September 2011; 11 (4): 497–503. doi: https://doi.org/10.2166/ws.2011.092
Download citation file:
Sign in
Don't already have an account? Register
Client Account
You could not be signed in. Please check your email address / username and password and try again.
Could not validate captcha. Please try again.
eBook
Pay-Per-View Access
$38.00