Paper Title:
Theoretical Analysis and Experimental Research on Upward Capacity of Screw Anchor
  Abstract

Based on eight groups of uplift tests for screw anchors with different embedded depths and different plate sizes, a method is given to compute the bearing capacity of screw anchor within critical depth in coarse sand according to analysis on force transmission route and failure characteristics. Within critical depth, bearing capacity of screw anchor is proportionate to embedded depth and the area of screw plate, and the failure surface is inverse triangle in shape. Beyond critical depth, the bearing capacity of screw anchor won’t increase with depth, and the failure surface is funnel in shape. Critical depth is about 10 times the diameter of screw plate. In both cases, the include angle between failure surface and the vertical plane equals to 0.5 time the friction angle of the soil.

  Info
Periodical
Advanced Materials Research (Volumes 243-249)
Edited by
Chaohe Chen, Yong Huang and Guangfan Li
Pages
3029-3035
DOI
10.4028/www.scientific.net/AMR.243-249.3029
Citation
Y. F. Fang, H. X. Gao, W. W. Duan, Z. J. Sun, "Theoretical Analysis and Experimental Research on Upward Capacity of Screw Anchor", Advanced Materials Research, Vols. 243-249, pp. 3029-3035, 2011
Online since
May 2011
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Price
$32.00
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