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滹沱河两岸松散砂土液化的研究
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摘要
本论文以科研工作荻取的地质、水文地质、钻孔、土工试验等资料为基础,以动扭剪试验、静三轴临界孔隙比试验结果为依据,对滹沱河两岸河漫滩与阶地上,普遍分布的松散砂土的动力学特征进行研究,从土在动荷载作用下应力、应变随时间的关系,即"土动本构关系"入手。研究砂土动强度特性、孔隙水压力、动应力-应变关系等特性。在此基础上,分析砂土抗液化特性,探讨砂土液化影响因素和液化判断标准,结合松散砂土的临界孔隙比试验提出合理的饱和砂土地基处理方案建议。
In this thesis,the starting area for the District definite target,the geological hydrogeology,drilling,soil testing and other information as the basis for dynamic torsional tests,the critical void ratio static triaxial test results as a basis for Hutuo reverse shore floodplain and terraces,we study on dynamic characteristics of loose widespread distribution of sand,From the soil under dynamic load stress,strain time relationship,namely "soil dynamic constitutive relation of sand",we study on dynamic strength properties,pore water pressure,dynamic stress-strain relationship characteristics.On this basis,we analyz sand liquefaction features,explore the factors affecting soil liquefaction,liquefaction given a reasonable criterion,then put forward saturated sandy foundation treatment plan recommendations.
引文
[1].《岩土地震工程学》陈国兴著2007年科学出版社
    [2].《土动力学》吴世明等编著2000年中国建筑出版社
    [3].CHU J,LO S-C R.Asymptotic behavior of a granular soil in strain path testing[J].Geotechnique,1994,44(1):65-82.
    [4].FANG Y S,CHEN T J,WU B F.Passive earth pressures with various wall movements[J].Journal of Geotechnical Engineering,1994,120(8):1307-1323.

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