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基于层次法的冀北地区输电线雷击风险区划

杨琳晗赵增保张彦恒武辉芹张娣   

  1. 河北省气象服务中心,河北石家庄050021
  • 出版日期:2018-06-30 发布日期:2018-06-30

Lightning Strike Risk Zoning of Transmission Lines in Northern of Hebei
 Province Based on Analytic Hierarchy Process (AHP) Model

YANG Linhan, ZHAO Zengbao, ZHANG Yanheng, WU Huiqin, ZHANG Di   

  1. Hebei Provincial Meteorological Service Center, Shijiazhuang 050021, China
  • Online:2018-06-30 Published:2018-06-30

摘要:

根据冀北地区2012—2015年输电线路雷击灾害资料及1981—2015年雷暴日数,结合冀北地区的人口密度、经济发展等社会经济特征,选取雷击灾害频度、雷暴日数、生命易损模数和经济易损模数4个指标,采用层次分析法确定评估指标权重分布,建立输电线路雷击风险评估模型,形成冀北地区输电线雷击灾害风险区划图。结果表明:极高风险区有崇礼、丰宁、承德县、青龙、迁安、遵化、迁西、丰润和香河,高风险区主要位于张家口中部和南部、承德北部和东部、唐山中部和廊坊中部,极高风险区和高风险区应为输电线路雷击风险重点防护地区;中风险区主要位于张家口北部和西部、承德中部和东南部、唐山东部、秦皇岛中部、廊坊北部和南部;低风险区主要位于玉田、曹妃甸、滦南、乐亭和永清。

关键词: 冀北地区, 雷击灾害, 风险区划, 层次分析法

Abstract:

Based on the data of lightning strike disasters of transmission lines during 2012-2015 and daily thunderstorm statistics during 1981-2015, and combined with population density and economic development in northern of Hebei Province in 2015, the zoning of lightning strike risk of transmission lines was made. Lightning strike disasters, thunderstorm days, vital vulnerability and economic vulnerability were selected as four indicators and weighed by analytic hierarchy process (AHP) during the analysis. The results show that Chongli, Fengning, Chengde County, Qinglong, Qian’an, Zunhua, Qianxi, Fengrun and Xianghe belonged to the maximal risk area. High risk areas were mainly located in the central and south of Zhangjiakou, the north and east of Chengde, the central Tangshan and central Langfang. Areas of above should be the key protection areas for lightning strike risk. The north and west of Zhangjiakou, the central and southeast of Chengde, the west and south of Tangshan, the southern Qinhuangdao, and the southern Langfang belonged to the moderate risk area. Low risk area was mainly located in Yutian, Caofeidian, Luannan, Laoting and Yongqing.

Key words: northern Hebei, lightning strike disaster, risk zoning, analytic hierarchy process