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柔性挡墙设计参数对土压力影响的数值分析

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Keywords: 道路工程,土工格室,柔性挡墙,参数变化,土压力,数值分析

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Abstract:

为了研究土工格室柔性挡墙设计参数对土压力的影响,应用有限元方法,根据工程实际建立了有限元模型。在考虑墙体与土体的力学、变形和接触等情况下,通过改变墙体的厚度、坡比、弹性模量、重度、粘聚力和内摩擦角等设计参数,对挡墙的土压力进行弹塑性分析。结果表明不同的墙体参数变化对土压力及其分布的影响存在明显差异;墙体厚度、坡比和弹性模量等参数的变化对墙背土压力及分布的影响比较显著;粘聚力和内摩擦角在一定范围内变化时,对墙背土压力及分布有影响,超出范围不对土压力产生影响;墙体重度的变化对土压力影响很小。

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