地震灾害视角下四川省地震带区域城市韧性评价  

Evaluation of Urban Resilience in Sichuan Seismic Belt from the Perspective of Earthquake Disaster

作　　者：樊燕燕[1] 吕昱颖 李子奇[1] 冯莉[1,2] FAN Yanyan;LYU Yuying;LI Ziqi;FENG Li(School of Civil Engineering,Lanzhou Jiaotong University,Lanzhou 730070,China;College of Management and Economics,Tianjin University,Tianjin 300072,China)

机构地区：[1]兰州交通大学土木工程学院,甘肃兰州730070 [2]天津大学管理与经济学部,天津300072

出　　处：《防灾减灾工程学报》2024年第6期1323-1335,共13页Journal of Disaster Prevention and Mitigation Engineering

基　　金：甘肃省自然基金项目(20JR10RA237)资助。

摘　　要：城市系统是一个复杂巨系统,对其进行地震灾害视角下的韧性评价是评估城市系统防震减灾能力及城镇可持续化发展的关键。根据城市系统在地震灾害发生全过程中的不同表现,从抵抗能力、应对能力、恢复能力以及适应能力四方面构建地震灾害视角下城市韧性评价指标体系。为解决评价指标赋权过程中的主观性及评价指标体系存在的复杂性等问题,引入投影寻踪法对评价指标数据结构进行分析,寻找出最佳投影方向,以确定评价指标权重,结合物元可拓模型,计算各指标关联度及各城市综合关联度,根据最大关联度原则确定地震灾害视角下城市韧性的评价等级。以四川省活动地震带区域7个城市3个州为例,验证该方法的合理性与可行性。结果表明:自贡市、雅安市、凉山彝族自治州为一般韧性城市;德阳市、绵阳市为较高韧性城市;泸州市、内江市、宜宾市为基本韧性城市;阿坝藏族羌族自治州、甘孜藏族自治州为较低韧性城市。研究结果可为城市抗震韧性评价研究提供参考,为城乡规划建设的可持续发展提供思路。The urban system is a complex giant system,and its resilience evaluation from the perspec-tive of earthquake disaster is crucial for evaluating the earthquake prevention and disaster mitigation ca-pability of urban system and the sustainable development of urban and rural areas.Based on the differ-ent performance of urban system throughout the entire process of earthquake disaster,the evaluation indicator system of urban resilience from the perspective of earthquake disaster is constructed from four aspects:resistance,response,recovery and adaptability.To address the issues of subjectivity in the weighting of evaluation indicators and the complexity in the evaluation indicator system,the pro-jection pursuit method is introduced to analyze the data structure of the indicators,to identify the opti-mal projection direction for determining their weights.Combined with the matter-element extension model,the correlation degrees of indicators and the comprehensive correlation degrees of cities are cal-culated.The evaluation grades of urban resilience from the perspective of earthquake disaster were de-termined according to the principle of maximum correlation degree.Taking 7 cities and 3 prefectures in the active seismic belt of Sichuan Province as examples,the rationality and feasibility of the method are verified.The results show that Zigong City,Ya'an City and Liangshan Yi Autonomous Prefecture are generally resilient cities;Deyang City and Mianyang City are higher resilient cities;Luzhou City,Neijiang City and Yibin City are basic resilient cities;Aba Tibetan and Qiang Autonomous Prefecture and Ganzi Tibetan Autonomous Prefecture are silient.The research results can provide refer-ence for the evaluation of urban seismic resilience and offer insights for the sustainable development of urban and rural planning and construction.

关 键 词：地震灾害视角 活动地震带区域 城市韧性评价 投影寻踪法 物元可拓模型 

分 类 号：X915.5[环境科学与工程—安全科学]