摘要
2008年5月12日发生了汶川8.0级特大地震,震后作者深入地震重灾区开展了震害现场调查工作。利用现场调查得到的第一手资料,分析了极震区北川县城区的震害现象,发现山坡和河岸滑坡、断层地表破裂以及柔底层结构底层破坏所导致的结构严重破坏和倒塌是城区的主要震害现象,同时看到仍然有一些砌体结构建筑震害较轻,处于轻微或中等破坏,甚至基本完好状态。这些震害现象展示了山区地震灾害的基本特征和复杂性。
The Ms8.0 Wenchuan earthquake occurred on 12 May 2008. Survey of disaster and engineering damage was made in detail by authors and other researchers in the extreme earthquake disaster area after mainshock. The earthquake disaster status and engineering damage phenomena in the Beichuan county are analyzed based on field survey. We found that the main disaster is caused by the landslide of hillside and riverbank, surface rupture of fault and the soft first story buildings. In contrast to the heavy damage of most buildings, the damage of some masonry buildings was not so heavy in the extreme earthquake disaster area, such as slight or medium damage, and even basically undamaged. The earthquake damage phenomena show the complex disaster status caused by the great earthquake in mountain regions.
出处
《震灾防御技术》
2008年第4期352-362,共11页
Technology for Earthquake Disaster Prevention
基金
国家科技支撑计划课题(2006BAC13802)
中央级公益性研究所基本科研业务基金(2006A02)资助
关键词
汶川地震
震害调查
地震滑坡
柔底层结构
极震区
Wenchuan earthquake
Earthquake damage survey
Earthquake landslide
Soft first story building
Extreme earthquake disaster area
