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EVALUATION OF INTERFACE PARAMETERS FROM PULLOUT TEST IN SILTY SAND AND WEATHERED CLAY

机译:从粉砂和风化粘土中拉拔试验评估界面参数

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The interface parameters which are needed for both finite element and conventional analyses of geotextile-reinforced earth structures such as the local shear stress/shear displacement, the interface interaction coefficient and the in-soil stress/strain of the reinforcement have been successfully interpreted by the newly proposed method considering the softening behavior and non-uniform distribution of shear stress along the extensible reinforcement. Results from this study indicate that the interpretation of pullout tests using conventional methods underestimated both the shear stiffness and the peak shear strength at the pullout interface of extensible reinforcement.
机译:土工织物加筋的土体结构的有限元分析和常规分析所需的界面参数,例如局部剪应力/剪切位移,界面相互作用系数和加筋的土内应力/应变,已被成功地解析。新提出的方法考虑了沿可扩展钢筋的剪应力的软化行为和不均匀分布。这项研究的结果表明,使用常规方法进行的拉拔试验的解释低估了可伸长钢筋的拉拔界面处的剪切刚度和峰值剪切强度。

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