Study on Ultimate Pullout Force of Grouting Anchors of the Anchor-Pull Retaining Wall

Hongbo Zhang^1,2, Yifan Yu^1,2, Xiuguang Song^1,2, Yingyong Li², Jianqing Wu^1,2

¹School of Civil Engineering, Shandong University, Jinan, 250061, China.
²Subgrade Security Engineering Research Center of Shandong Province, Jinan, 250061, China.

DOI: 10.4236/gep.2014.25005                

Abstract

Determination of the grouting anchor pullout force is a key step during the design of anchor-pull retaining wall, but it is mostly determined relied on empirical formula at present, and the rationality and the safety cannot be effectively guaranteed. Based on the engineering case of the gravity retaining wall of Qinglin Freeway, the model test was designed, and combined with the results of the ABAQUS finite element numerical analysis, it was analyzed that how the anchor axial pulling force distributes. The results showed that the force of the anchor near the wall bolt was large and which far from the wall was small and the ultimate pullout force was proportional to the length, diameter and shear strength. When the end tension of the anchor was small, the top load played a leading role on the anchor tension. This conclusion confirmed the calculation formula of ultimate pullout force was and provided a theoretical basis for anchor-pull retaining wall design and calculation.

Keywords

Anchor-Pull Retaining Wall, Ultimate Pullout Force, Lateral Earth Pressure, Model Test, Numerical Analysis

Conflicts of Interest

The authors declare no conflicts of interest.

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