干旱区生态环境知识资源中心(Arid): Risk-Based Inspection and Rehabilitation Planning of Service Connections in Intermittent Water Supply Systems for Leakage Management in Arid Regions

Arid

DOI	10.3390/w14243994
	Risk-Based Inspection and Rehabilitation Planning of Service Connections in Intermittent Water Supply Systems for Leakage Management in Arid Regions
	Haider, Husnain; Almutlaq, Muath Abdullah; Alodah, Abdullah; Ghumman, Abdul Razzaq; AlSalamah, Ibrahim Saleh; Ghazaw, Yousry Mahmoud; Shafiquzzaman, Md.
通讯作者	Haider, H
来源期刊	WATER
EISSN	2073-4441
出版年	2022
卷号	14 期号:24
英文摘要	Most of the leakage in water distribution systems operating with plastic pipes occurs at service connections (SCs), while the existing tools plan rehabilitation of pipes. With limited water resources, intermittent supplies in arid regions further enhance the failure vulnerability of metal fittings on water mains due to scale formation and large pressure transients. The present research developed a risk-based methodology for the proactive maintenance of SCs in intermittent water supply systems. A five-generation bottom-up hierarchical approach aggregated the basic hydraulic, physical, and water quality factors to determine the vulnerability of structural failures of SCs. Hydraulic parameters (pressure and velocity) were estimated by simulating a distribution network of 366 water mains of diameters ranging from 110 mm to 225 mm serving 371 SCs in a residential neighborhood located in the Qassim region of Saudi Arabia. Age, depth, and length of SCs' estimated the condition index, while soil corrosivity and condition of the water mains were also counted when assessing the structural failure index for each SC. Water quality parameters, e.g., pH, turbidity, and iron, that can contribute to the vulnerability of an SC's failure were also included. Fuzzy-based methods first assessed the relative importance weights of the basic input parameters at the bottom of the hierarchy and the risk factors in the middle of the hierarchy. Subsequently, the performance and condition scores were aggregated to develop respective indices. As the consequence of structural failure is high for the SCs serving households with a large number of residents, the final risk index aggregates the vulnerability and consequence at the hierarchy's top. The developed model was effectively validated by comparing the SCs of high priority with the leaking and repaired SCs in the past. The method will be a useful tool for planning proactive inspection and rehabilitation of SCs of intermittent supply systems to minimize water losses (less than 8% of the national benchmark) in Saudi Arabia and elsewhere.
英文关键词	risk-based rehabilitation service connections water supply system intermittent supply arid regions fuzzy-based methods
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000904450100001
WOS关键词	MULTIOBJECTIVE OPTIMIZATION ; FRAMEWORK ; FAILURE
WOS类目	Environmental Sciences ; Water Resources
WOS研究方向	Environmental Sciences & Ecology ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/394865
推荐引用方式 GB/T 7714	Haider, Husnain,Almutlaq, Muath Abdullah,Alodah, Abdullah,et al. Risk-Based Inspection and Rehabilitation Planning of Service Connections in Intermittent Water Supply Systems for Leakage Management in Arid Regions[J],2022,14(24).
APA	Haider, Husnain.,Almutlaq, Muath Abdullah.,Alodah, Abdullah.,Ghumman, Abdul Razzaq.,AlSalamah, Ibrahim Saleh.,...&Shafiquzzaman, Md..(2022).Risk-Based Inspection and Rehabilitation Planning of Service Connections in Intermittent Water Supply Systems for Leakage Management in Arid Regions.WATER,14(24).
MLA	Haider, Husnain,et al."Risk-Based Inspection and Rehabilitation Planning of Service Connections in Intermittent Water Supply Systems for Leakage Management in Arid Regions".WATER 14.24(2022).