Estimation of active earth pressure against rigid retaining walls considering arching effects
Estimation of active earth pressure against rigid retaining walls considering arching effects
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DOI：
10.1680/geot.2003.53.7.643
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发表时间：
2003-09
期刊：
影响因子：
5.8
通讯作者：
K. Paik;R. Salgado
中科院分区：
文献类型：
--
作者：
K. Paik;R. Salgado
由于回填体的拱效应，平动刚墙的主动土压力分布不是三角形的，而是非线性的。本文提出了一种新的计算刚性挡土墙水平平移主动土压力的公式。它考虑了在回填体（或保留的土体）中发生的拱效应。为了验证所提公式的准确性，将该方程的预测结果与现有的全尺寸试验结果和现有方程的值进行了比较。计算值与实测值的比较表明，所提出的方程能较好地预测平移墙的土压力分布和横向主动土力。为了便于利用所提方程计算主动土压力，文中还给出了修正主动土压力系数和侧向主动力有效施加高度。
It is known that the distribution of active earth pressure against a translating rigid wall is not triangular but nonlinear, owing to arching effects in the backfill. In the present paper, a new formulation is proposed for calculating the active earth pressure on a rigid retaining wall undergoing horizontal translation. It takes into account the arching effects that occur in the backfill (or retained soil mass). In order to check the accuracy of the proposed formulation, the predictions from the equation are compared with both existing full-scale test results and values from existing equations. The comparisons between calculated and measured values show that the proposed equations satisfactorily predict both the earth pressure distribution and the lateral active earth force on the translating wall. In order to facilitate calculation of active earth pressures using the proposed equations, a modified active pressure coefficient and an effective height of application of the lateral active force are also prov...