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CANLEX full-scale experiment and modelling

机译：CANLEX全面实验和建模

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A major aim of the Canadian Liquefaction Experiment (CANLEX) was to verify analysis procedures for predicting liquefaction phenomena. Towards this purpose, two loading events were carried out: a field event comprising a clay embankment built over a loose sand foundation layer, and a centrifuge test performed on a model of a sand embankment structure. Both the field event and the centrifuge model were planned so as to induce a static liquefaction failure and were instrumented to observe their response in terms of displacement and pore pressure. The fundamental mechanical characteristics of the foundation layer were determined from laboratory element tests (triaxial and simple shear). These tests formed the basis for the stress-strain modelling used in the numerical analyses. Two fundamentally different modelling techniques were used. One involved a fully coupled plasticity model, and the other involved a model based on a collapse-surface approach. The model and prototype structures were then analyzed and the predicted results in terms of displacements and pore pressures were compared with the measured values. The results from both approaches were found to be in reasonable agreement with the measurements, provided allowance was made for direction of loading and drainage effects were accounted for. [References: 26]
机译：加拿大液化实验（CANLEX）的主要目的是验证用于预测液化现象的分析程序。为了达到这个目的，进行了两个加载事件：包括在松散的砂土基础层之上构建的粘土路堤的现场事件，以及在砂土路堤结构模型上进行的离心机测试。对现场事件和离心模型都进行了计划，以引起静态液化破坏，并用仪器观察了它们在位移和孔隙压力方面的响应。基础层的基本机械特性由实验室元素测试（三轴和简单剪切）确定。这些测试为数值分析中使用的应力应变建模奠定了基础。使用了两种根本不同的建模技术。一个涉及完全耦合的可塑性模型，另一个涉及基于塌陷表面方法的模型。然后分析模型和原型结构，并将位移和孔隙压力方面的预测结果与测量值进行比较。两种方法的结果均与测量值合理吻合，但要考虑到荷载和排水作用的方向。 [参考：26]

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