Liquefaction in Tohoku district during the 2011 off the Pacific Coast of Tohoku Earthquake
Liquefaction in Tohoku district during the 2011 off the Pacific Coast of Tohoku Earthquake
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DOI：
10.1016/j.sandf.2012.11.005
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发表时间：
2012-10
影响因子：
3.7
通讯作者：
A. Yamaguchi;T. Mori;M. Kazama;N. Yoshida
中科院分区：
文献类型：
--
作者：
A. Yamaguchi;T. Mori;M. Kazama;N. Yoshida
2011年东北太平洋沿岸地震时，东北地区的液化和液化灾害信息已经汇总。本报告中的液化主要通过砂沸来识别。它对土木结构和住宅造成破坏，并抬高了沙井。地震前后的地质图和航空照片对比显示，许多液化地点是旧河床和发达地区。由于液化的证据已被海啸冲走，因此难以确定海啸灾区的液化情况。然而，液化是通过对居民的采访以及海啸到来前拍摄的照片和视频确定的。仙台机场也观察到了液化现象，但由于已经对土壤液化进行了补救，飞机没有受到损坏。
Information on the liquefaction and the liquefaction-induced damage in the Tohoku district during the 2011 off the Pacific Coast of Tohoku Earthquake has been compiled. The liquefaction in this report was mainly identified by sand boils. It caused damage to earth structures and residential houses, as well as the uplift of manholes. A comparison of geological maps and aerial photos, before and after the earthquake, shows that many of the liquefied sites were old river beds and developed areas. Liquefaction in the tsunami-affected areas was difficult to identify as the evidence of liquefaction had been washed away by the tsunami. However, the liquefaction was identified through interviews with residents and by photos and videos taken before the arrival of the tsunami. Liquefaction was also observed at Sendai Airport, but the runaway was not damaged because it had been remediated against soil liquefaction.