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首页> 外文会议>Sino-Japan Geotechnical Symposium November; 20071104-07; Chongqing(CN) >SEISMIC SETTLEMENT ESTIMATION ON PARTIALLY IMPROVED GROUND USING SHAKING TABLE
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SEISMIC SETTLEMENT ESTIMATION ON PARTIALLY IMPROVED GROUND USING SHAKING TABLE

机译：使用振动台估算部分改良地面的地震沉降

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摘要

The anti-liquefaction ground improved by cement-mixing and permeable-grouting shows the spatial variability of liquefaction strength resulting from the spatial variability of original soil profile before treatment, the non-uniformity of mixing and grouting, etc. The seismic behavior of improved ground with the spatial variability of liquefaction strength,however, has not been fully clarified. In this paper, in order to evaluate effects of spatial variability of liquefaction strength on the seismic behavior of improved ground, a series of model experiments has been carried out through investigating the seismic behavior of partially improved ground using shaking table test. Moreover, the estimation of seismic settlement considering the depth distribution of vertical strain in terms of 1 dimensional (1D) and 2 dimensional (2D) improvement patterns has been proposed. It can be seen that estimated seismic settlement from 2D improvement pattern shows better agreement with observed settlement than 1D estimation.
机译：通过水泥拌合和透水灌浆改良的抗液化地基表现出液化强度的空间变异性，这是由于处理前原始土壤剖面的空间变异性，拌合和灌浆的不均匀性等引起的。然而，关于液化强度的空间变化性尚未完全阐明。为了评估液化强度的空间变异性对改良地面的抗震性能的影响，通过振动台试验研究了部分改良地面的抗震性能，进行了一系列模型实验。此外，已经提出了考虑垂直应变的深度分布的一维（1D）和二维（2D）改进模式的地震沉降估计。可以看出，与一维估计相比，根据二维改进模式估算的地震沉降与实测沉降具有更好的一致性。

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