Purpose

The purpose of this paper is to study the distribution of active earth pressure in retaining walls with narrow cohesion less backfill considering arching effects.

Design/methodology/approach

To this end, the approach of principal stresses rotation was used to consider the arching effects.

Findings

According to the presented formulation, the active soil pressure distribution is nonlinear with zero value at the wall base. The proposed formulation implies that by increasing the frictional forces at both sides of the backfill, the arching effect is increased and so, the lateral earth pressure on the retaining wall is decreased. Also, by narrowing the backfill space, the lateral earth pressure is extremely decreased.

Originality/value

A comprehensive analytical solution for the active earth pressure of narrow backfills is presented, such that the effects of the surcharge and the characteristics of the stable back surface are considered. The magnitude and height of the application of lateral active force are also derived.

中文翻译：

---

考虑拱效应的窄填土主动压力解析解

目的

本文的目的是研究在考虑拱效应的情况下，具有窄内聚力而没有回填的挡土墙中主动土压力的分布。

设计/方法/方法

为此，使用主应力旋转的方法来考虑拱效应。

发现

根据提出的公式，有效的土压力分布是非线性的，墙底为零。提出的公式意味着通过增加回填土两侧的摩擦力，可以提高拱形效果，从而减小了挡土墙的侧向土压力。此外，通过缩小回填空间，横向土压力会大大降低。

创意/价值

提出了一种用于窄回填土主动土压力的综合分析解决方案，从而考虑了附加费的影响和稳定背表面的特性。还可以得出横向作用力施加的大小和高度。