汶川MS 8.0特大地震破坏特征初步研究

地震地质 ›› 2008, Vol. 30 ›› Issue (4): 855-876.

汶川M_S 8.0特大地震破坏特征初步研究

李志强¹, 袁一凡², 李晓丽¹, 张勤³, 代博洋¹, 叶友清⁴, 戈培峰⁵, 曾杰⁶

1. 中国地震局地质研究所, 北京, 100029;
2. 中国地震局工程力学研究所, 哈尔滨, 150080;
3. 河北省地震局, 石家庄, 050021;
4. 四川省地震局, 成都, 610041;
5. 四川省石棉地震局, 石棉, 625400;
6. 四川省自贡地震局, 自贡, 643000

收稿日期:2008-09-11 修回日期:2008-11-23 出版日期:2008-12-18 发布日期:2009-11-27
作者简介:李志强,男,1969年生,1997年在中国地震局地质研究所获博士学位,研究员,主要从事地震灾害方面的研究工作,电话:010-62009090,E-mail:lzhq@ies.ac.cn.
基金资助:
中国地震局汶川8.0级地震应急科学考察项目资助

PRELIMINARY RESEARCH ON THE CHARACTERISTICS OF THE M_S 8.0 WENCHUAN EARTHQUAKE HAZARD

LI Zhi-qiang¹, YUAN Yi-fan², LI Xiao-li¹, ZHANG Qin³, DAI Bo-yang¹, YE You-qing⁴, GE Pei-feng⁵, ZENG Jie⁶

1. Institute of Geology, China Earthquake Administration, Beijing 100029, China;
2. Institute of Engineering Mechanics, China Earthquake Administration, Harbin 150080, China;
3. Earthquake Administration of Hebei Province, Shijiazhuang 050021, China;
4. Earthquake Administration of Sichuan Province, Chengdu 610041, China;
5. Earthquake Administration of Shimian, Sichuan Province, Shimian 625400, China;
6. Earthquake Administration of Zigong, Sichuan Province, Zigong 643000, China

Received:2008-09-11 Revised:2008-11-23 Online:2008-12-18 Published:2009-11-27

摘要/Abstract

摘要： 2008年5月12日的汶川8.0级特大地震造成了巨大的人员伤亡和经济损失。地震现场考察认为:极震区烈度为Ⅺ度,表现为强烈的带状分布,且破坏很重,地震破坏在垂直于断裂的方向上衰减非常快;Ⅹ度区和Ⅸ度区垂直于断裂的方向上极窄,Ⅹ度区和Ⅸ度区偏小;烈度在断层两侧迅速衰减,但Ⅵ度、Ⅶ度区的影响范围非常大,Ⅵ度区的影响范围约24万km2。垂直于断裂的方向上南部破坏范围在Ⅵ度区远大于北部地区。在不同烈度区均出现了大量的烈度异常点。对各类建(构)筑物、地貌、地形的破坏类型、破坏方式均有了新的认识。

关键词: 汶川8.0级地震, 震害特点, 烈度图

Abstract: The M_S 8.0 Wenchuan earthquake on 12^th May 2008 caused heavy casualties and economic loss.According to the field investigations,the characteristics can be included as follows:The meizoseismal region with an intensity of XI,showing obviously zonal distribution,suffers serious destruction from the earthquake,and the destruction perpendicular to the rupture decreases sharply.At the same time,the intensity X and IX degree regions perpendicular to the rupture are narrow and therefore their coverage area is small.The intensity on both sides of the rupture attenuates rapidly,but the Ⅶ degree region and the VI degree region are wide,the latter region covering about 240,000 square kilometers.In the VI degree region,the damage area perpendicular to the rupture in the southern part is much larger than that of the northern part.Besides,many new understandings about the destruction types and destructive modes of all kinds of buildings,landform and terrain are gained in this paper.

Key words: M_S 8.0 Wenchuan earthquake, characteristics of earthquake hazard, intensity distribution

中图分类号:

P315.9

李志强, 袁一凡, 李晓丽, 张勤, 代博洋, 叶友清, 戈培峰, 曾杰. 汶川M_S 8.0特大地震破坏特征初步研究[J]. 地震地质, 2008, 30(4): 855-876.

LI Zhi-qiang, YUAN Yi-fan, LI Xiao-li, ZHANG Qin, DAI Bo-yang, YE You-qing, GE Pei-feng, ZENG Jie. PRELIMINARY RESEARCH ON THE CHARACTERISTICS OF THE M_S 8.0 WENCHUAN EARTHQUAKE HAZARD[J]. SEISMOLOGY AND EGOLOGY, 2008, 30(4): 855-876.

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