TITLE:
Study on Ultimate Pullout Force of Grouting Anchors of the Anchor-Pull Retaining Wall
AUTHORS:
Hongbo Zhang, Yifan Yu, Xiuguang Song, Yingyong Li, Jianqing Wu
KEYWORDS:
Anchor-Pull Retaining Wall, Ultimate Pullout Force, Lateral Earth Pressure, Model Test, Numerical Analysis
JOURNAL NAME:
Journal of Geoscience and Environment Protection,
Vol.2 No.5,
December
18,
2014
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.