基于退化因子的污水管道脆弱性热点映射（VHM）

IF 1.6 3区环境科学与生态学 Q3 WATER RESOURCES

Urban Water Journal Pub Date : 2023-05-09 DOI:10.1080/1573062X.2023.2208107

Afshin Sadeghikhah, Ehtesham Ahmed, S. Chakraborty, Stefan Trülzsch, Peter Krebs

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引用次数: 0

摘要

一个分散的、可持续的城市下水道检查计划需要多种不同影响区域的检查方法。虽然下水道恶化模型提供了很大的影响区域，但空间测绘可以在不事先了解管道结构健康状况的情况下评估系统的脆弱性。在这项研究中，我们评估并优先考虑管道老化因素，如管道年龄、材料、下水道类型、节点度、流速和地表植被，用于德国德累斯顿下水道系统的脆弱性热点制图。验证和敏感性分析表明，流速、管道年龄和地表植被分别是最敏感的模型因子。线性模型的效率为76%，均方误差为0.918，随机森林算法对线性模型进行了改进，指出了脆弱性映射作为城市尺度早期下水道检测方法的潜力。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Vulnerability hotspot mapping (VHM) of sewer pipes based on deterioration factors

ABSTRACT A decentralized, and sustainable sewer inspection plan at the city scale demands multiple inspection methods with different areas of impact. While sewer deterioration models offer great areas of impact, spatial mapping can assess the vulnerability of the system without prior knowledge of the pipe’s structural health condition. In this study, we assess and prioritize sewer deterioration factors such as pipe age, material, sewer type, node degree, flow velocity, and surface vegetation for vulnerability hotspot mapping of a sewer system in Dresden, Germany. The validation and sensitivity analyses revealed that flow velocity, pipe age, and surface vegetation are the most sensible factors to model, respectively. The linear model resulted in 76% efficiency and a mean squared error of 0.918 while it was improved with a random forest algorithm which points out vulnerability mapping potential as an early sewer inspection method at the city scale.

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来源期刊

Urban Water Journal WATER RESOURCES-

CiteScore

4.40

自引率

11.10%

发文量

101

审稿时长

3 months

期刊介绍： Urban Water Journal provides a forum for the research and professional communities dealing with water systems in the urban environment, directly contributing to the furtherance of sustainable development. Particular emphasis is placed on the analysis of interrelationships and interactions between the individual water systems, urban water bodies and the wider environment. The Journal encourages the adoption of an integrated approach, and system''s thinking to solve the numerous problems associated with sustainable urban water management. Urban Water Journal focuses on the water-related infrastructure in the city: namely potable water supply, treatment and distribution; wastewater collection, treatment and management, and environmental return; storm drainage and urban flood management. Specific topics of interest include: network design, optimisation, management, operation and rehabilitation; novel treatment processes for water and wastewater, resource recovery, treatment plant design and optimisation as well as treatment plants as part of the integrated urban water system; demand management and water efficiency, water recycling and source control; stormwater management, urban flood risk quantification and management; monitoring, utilisation and management of urban water bodies including groundwater; water-sensitive planning and design (including analysis of interactions of the urban water cycle with city planning and green infrastructure); resilience of the urban water system, long term scenarios to manage uncertainty, system stress testing; data needs, smart metering and sensors, advanced data analytics for knowledge discovery, quantification and management of uncertainty, smart technologies for urban water systems; decision-support and informatic tools;...