Post-earthquake Recovery Strategy of Old Urban District Water Supply Network Based on Segmentation

2nd International Symposium on Resource Exploration and Environmental Science

生态环境科学

Liu, Yang^1,2 ; Guan, Cangsheng^1 ; Li, Chen^2

School of Civil Engineering and Architecture, Wuhan University of Technology, Wuhan

430070, China^1

School of Civil Engineering and Architecture, Henan University of Technology, Zhengzhou

450052, China^2

关键词: Disaster prevention and mitigations;    Feasible alternatives;    Functional recovery;    Network connectivity;    Physical structures;    Project performance;    Recovery strategies;    Water supply networks;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/170/2/022023/pdf
DOI  :  10.1088/1755-1315/170/2/022023

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

China's small and medium-sized cities are experiencing problems such as the old urban pipe networks, the chaotic zoning of functions, the incomplete files, the backward disaster prevention planning and the low level of information management causing sluggishness and chaos in the recovery of their cities after earthquake. These problems have posed serious risks to Chinese people's lives and properties. In this context, the author proposed the segmentation strategy which is an economical, effective and low-cost strategic analysis method aiming to maximize the functional recovery of water supply for old urban district after the earthquake. Based on the reliability analysis of network connectivity and the calculation of pipeline's importance degree, the segmentation strategy helps to analyze the coordination relationship between the restoration of physical structure of the network and the water supply function from the perspective of space, and to discuss the mitigation plan including the function restoration target, the recovery steps and the project performance evaluation. With the application of the segmentation strategy, the author discovered the key node and pipeline routes of the water supply in the old urban area of Tieling City of China and obtained the solution of disaster prevention and mitigation of the urban water network. The research findings indicate that the postearthquake recovery based on the segmentation strategy for the old urban pipe network provides a low-cost, practical and feasible alternatives.