基于投影寻踪聚类的供水管网地震韧性评估

doi:10.16265/j.cnki.issn1003-3033.2020.06.022

中国安全科学学报 ›› 2020, Vol. 30 ›› Issue (6): 152-157.doi: 10.16265/j.cnki.issn1003-3033.2020.06.022

基于投影寻踪聚类的供水管网地震韧性评估

李岩峰¹ 高级工程师, 尹家骁¹, 刘朝峰^**1 副教授, 王威² 副研究员, 于小晨¹, 李子芃³

1.河北工业大学土木与交通学院, 天津 300401;
2.北京工业大学抗震减灾研究所, 北京 100124;
3.河北工业大学国际教育学院, 天津 300401

收稿日期:2020-03-20 修回日期:2020-05-25 出版日期:2020-06-28 发布日期:2021-01-28
通讯作者: **刘朝峰(1984—),男,河北晋州人,博士,副教授,主要从事城市与基础设施防灾减灾方面的研究。E-mail:liucf8403@hebut.edu.cn。
作者简介:李岩峰(1981—),男,河北张北人,硕士,高级工程师,主要从事结构损伤评估方面的研究。E-mail:liyanfengwindy@163.com。
基金资助:
中国地震局工程力学研究所基本科研业务费专项项目(2019EEEVL0501); 国家自然科学基金资助(51678017); 河北省自然科学基金资助(E2019202470, G2018202059); 河北省高等学校科学技术研究项目(QN2018094)。

Assessment on seismic resilience of water supply network based on projection pursuit cluster

LI Yanfeng¹, YIN Jiaxiao¹, LIU Chaofeng¹, WANG Wei², YU Xiaochen¹, LI Zipeng³

1. School of Civil and Transportation Engineering, Hebei University of Technology, Tianjin 300401, China;
2. Institute of Earthquake Resistance and Disaster Reduction, Beijing University of Technology, Beijing 100124, China;
3. School of International Education, Hebei University of Technology, Tianjin 300401, China

Received:2020-03-20 Revised:2020-05-25 Online:2020-06-28 Published:2021-01-28

摘要/Abstract

摘要： 为分级保障城市供水管网安全运行,基于韧性解析和管网震害机制,构建考虑管道物理属性、管外环境条件、管内水力功能等因素的供水管网地震安全韧性评估指标体系;引入投影寻踪方法对各指标进行线性投影,建立供水管网地震安全韧性评估的投影寻踪聚类模型,量化分析供水管网地震安全韧性水平并分级,确定各管段地震安全韧性等级及排序;应用评估某供水管网,并将评估结果与动态分级法、谱系聚类法进行对比。结果表明:基于投影寻踪聚类的供水管网地震韧性评估模型可成功实现供水管网地震安全的韧性分级与排序,更全面地反映管材、接口形式等不同因素对供水管网地震安全韧性的影响程度。

关键词: 投影寻踪聚类, 供水管网, 地震韧性, 水力分析, 评估指标体系, 分级保障

Abstract: In order to ensure safe operation of urban water supply network at different levels, based on resilience analysis and seismic damage mechanism of network, a seismic safety resilience evaluation index system of the network was established which considered pipelines' physical properties, external environment and hydraulic function in pipes. Then, projection pursuit method was introduced to project evaluation index linearly, and a projection pursuit cluster model for assessment was established to analyze seismic safety resilience level and to obtain resilience grade and order of each pipes. Finally, this model was applied to evaluate a water supply network, and its assessment results were compared with those obtained by dynamic classification method and pedigree clustering method. The results show that the proposed evaluation model based on projection pursuit cluster can successfully grade and rank seismic safety resilience of water supply network and comprehensively reflect influence of different elements including pipes' material and connection type.

Key words: projection pursuit cluster, water supply network, earthquake resilience, hydraulic analysis, evaluation index system, hierarchical guarantee

中图分类号:

X915.5

李岩峰, 尹家骁, 刘朝峰, 王威, 于小晨, 李子芃. 基于投影寻踪聚类的供水管网地震韧性评估[J]. 中国安全科学学报, 2020, 30(6): 152-157.

LI Yanfeng, YIN Jiaxiao, LIU Chaofeng, WANG Wei, YU Xiaochen, LI Zipeng. Assessment on seismic resilience of water supply network based on projection pursuit cluster[J]. China Safety Science Journal, 2020, 30(6): 152-157.

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基于投影寻踪聚类的供水管网地震韧性评估

Assessment on seismic resilience of water supply network based on projection pursuit cluster

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