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首页> 外文期刊>Bulletin of earthquake engineering >Effects of basements and adjacent structures on liquefaction-triggering potential of foundation soils
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Effects of basements and adjacent structures on liquefaction-triggering potential of foundation soils

机译：地基和相邻结构对基础土壤液化触发潜力的影响

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The liquefaction-triggering potential of foundation soils is still a difficult and questionable area as the methods of determination of the liquefaction-triggering potential are only valid for free-field level sites at the present time. However, liquefaction is a major problem especially in urban areas, which have a number of structures. The nature of the problem changes dramatically at city centers, which frequently comprise close spaces and buildings with basement floors. Even though there are some recent studies in this area, further research is required. Hence, this study is focused on the liquefaction behavior of foundation soils of adjacent buildings and buildings with basement floors (i.e., floors under the ground surface). For this purpose, 3D finite-difference-based analyses were performed for generic sites using different soil, structure, and earthquake parameters. The results obtained for the structures with basements are compared with those of structures with no basement. It was shown that the presence of basements decreases the possibility of liquefaction as compared to similar structures with no basements. Similarly, analyses were performed for adjacent structures, and the corner structures in a set of adjacent structures were found to be more vulnerable to liquefaction as compared to the ones in the center.
机译：基础土壤的液化触发潜力仍然是一个困难且可疑的区域，因为确定液化触发潜力的测定方法仅对当前的自由场级别存在有效。然而，液化是一个主要问题，特别是在城市地区，有很多结构。城市中心的问题的性质急剧变化，经常包含近距离的空间和建筑物，地板楼层。尽管该领域有一些最近的研究，但需要进一步研究。因此，本研究专注于邻近建筑物和建筑物的基础土壤的液化行为（即地面下面的地板下面）。为此目的，使用不同土壤，结构和地震参数对普通部位进行3D有限差分分析。将用于基质结构获得的结果与没有地下室的结构的结果进行比较。结果表明，与没有基础的类似结构相比，基质的存在降低了液化的可能性。类似地，对相邻结构进行分析，并且发现一组相邻结构中的角部结构更容易易受中心的液化。

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