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LIQUEFACTION INVESTIGATION OF WENCHUAN EARTHQUAKE

机译：liquefaction investigation of wen chu an earthquake

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摘要

At 14:28 May 12 2008, a catastrophic earthquake of magnitude 8.0, the epicenter of which locates at Wenchuan, struck Sichuan Province (N31.00, E103.40). The earthquake caused severe damage to human lives and provincial economy, including 69159 casualties, 374141 injured, 17469 missing and 617.729 billion yuan of economic loss (by June 12, 2008). Liquefaction, which resulted to serious destruction to schools,manufactories, residence houses, crop fields, aqueducts, dams, bridges, roads etc. have been observed in large scale. Such phenomena as sand boils, surface failure, subsidence, land spreading and wall cracks have been commonly found in the liquefied regions. Furthermore, three features can be outlined about the characteristics of the liquefaction phenomena. (1) Liquefaction behaviors have been observed in low intensity regions, e.g. regions of seismic intensity of VI, and some of the liquefied soils were medium sands and fine sands. (2) Gravelly-soil liquefaction has been observed. (3) Structure destruction has commonly caused by the liquefaction rather than ground shaking. However, the liquefaction investigation has not been finished, thus further research will be conducted.
机译：在2008年5月12日14:28，发生了8.0级特大地震，震中位于四川省汶川（N31.00，E103.40）。到2008年6月12日，大地震严重破坏了人民群众的生命和财产，造成人员伤亡69159人，受伤374141人，失踪17469人，经济损失6177.29亿元。大规模观察到液化对学校，工厂，住宅，农田，渡槽，水坝，桥梁，道路等造成了严重破坏。在液化区普遍发现诸如沙沸，表面破坏，沉降，土地扩展和墙体开裂等现象。此外，关于液化现象的特征可以概述三个特征。 （1）在低强度区域，例如在低强度区域，已经观察到液化行为。 VI的地震烈度区域，部分液化土壤为中砂和细砂。 （2）已观察到砾石土液化。 （3）结构破坏通常是由液化而不是地面震动引起的。然而，液化研究尚未完成，因此将进行进一步的研究。

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