变分法原理计算加筋土地基沉降

加筋土的沉降量是反映加筋土地基工作状态的一个重要的参数,但目前并没有成熟的方法,本文建立了简化的加筋土计算模型,根据变分法原理推导出文克尔弹性地基上加筋土的沉降计算公式。并与相关试验的数据作了比较,验证了推导的公式正确性,并和已有的计算方法相比较,得出推导的公式在外荷载较小时具有一定的合理性,同时也指出了它的不足之处,为加筋土地基的优化设计提供参考。

The Reinforced Soil Foundation Settlement Calculation by Variational Principle

The settlement of reinforced soil is an important parameter to reflect the status of reinforced soil foundation work, but there is no mature method at present. This paper established the simplified calculation model of reinforced soil. The reinforced soil settlement ealueulation formula on Winkler elastic foundation is deduced according to the variation method principle. Compared with the related test data, the correctness of the formula is verified and comparing with existed formula, the deduced formula has certain rationality when the external load is small. The deficiency is also pointed out, providing reference for the optimization design of reinforced soil foundation.