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首页> 外文期刊>Journal of Zhejiang University SCIENCE A >Monotonic triaxial experiments to evaluate steady-state and liquefaction susceptibility of Babolsar sand
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Monotonic triaxial experiments to evaluate steady-state and liquefaction susceptibility of Babolsar sand

机译：单轴三轴试验评估Babolsar砂的稳态和液化敏感性

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摘要

In this study, drained and undrained triaxial tests under isotropic and anisotropic consolidations were conducted on reconstituted samples of Babolsar sand, which underlies a densely populated, seismic region of the southern coast of the Caspian Sea, Mazandaran, Iran. It was demonstrated that the sand experienced all possible states of liquefiable soil: flow failure, limited flow, and dilation. The steady-state and flow liquefaction lines of this sand were presented and compared with previously tested sands. It is shown that the initial stress anisotropy can affect the potential of volume change and pore pressure generation. The steady-state line (SSL), however, remains identical for the isotropically and anisotropically consolidated specimens under drained and undrained conditions. The tests data were then analyzed in order to investigate the liquefaction susceptibility of this sand in terms of parameters such as the state parameter, relative state parameter index, and lateral earth pressure ratio at failure.
机译：在这项研究中，对各向同性和各向异性固结进行排水和不排水三轴试验，对重建的Babolsar砂样进行了测试，该砂位于伊朗马赞达兰里海南部海岸的一个人口稠密的地震区之下。结果表明，砂子经历了液化土壤的所有可能状态：流失，有限流和膨胀。给出了这种沙子的稳态和液化线，并与先前测试过的沙子进行了比较。结果表明，初始应力各向异性会影响体积变化和孔隙压力产生的潜力。但是，在排水和不排水条件下，各向同性和各向异性固结试样的稳态线（SSL）保持不变。然后对测试数据进行分析，以便根据状态参数，相对状态参数指数和破坏时的侧向土压力比等参数来研究这种砂的液化敏感性。

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