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一、前言地震时,饱和松砂地基产生液化,会造成建筑物大的破坏。这在新鸿地震(1964年)以来有了足够的认识。最近,在日本海中部发生的地震中,以秋田为中心的冲积平原、填筑地区产生了液化,特别是秋田港、八郎漏围垦地的破坏更为显著。对于液化现象的机理和预测方法等有相当部分是明确的,但就防止液化的措施方面,还有许多不明确的地方,今后希望能在这方面多加研究。
I. INTRODUCTION When an earthquake occurs, the liquefaction of the saturated loose sand foundation will cause major damage to the building. This has gained enough recognition since the Xinhong Earthquake (1964). Recently, during the earthquake in the central part of the Sea of Japan, liquefaction occurred in alluvial plains and reclaimed areas centered on Akita, and in particular, Akita Port and the Hachiro-embarrassment were damaged more significantly. Although the liquefaction mechanism and prediction methods are quite clear, there are many unclear areas for the prevention of liquefaction. In the future, it is hoped that more studies will be conducted in this area.