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Volume 18 Issue 2
Apr 2007
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Yanfen Wang, Yuanhan Wang, Hongyang Xie. Computing of the Anchor by the Method of Three-Dimension Point-Radiate Infinite Elements. Journal of Earth Science, 2007, 18(2): 185-190.
Citation: Yanfen Wang, Yuanhan Wang, Hongyang Xie. Computing of the Anchor by the Method of Three-Dimension Point-Radiate Infinite Elements. Journal of Earth Science, 2007, 18(2): 185-190.

Computing of the Anchor by the Method of Three-Dimension Point-Radiate Infinite Elements

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  • Corresponding author: Wang Yanfen, yinying20015@163.com
  • Received Date: 19 Jan 2007
  • Accepted Date: 20 Mar 2007
  • On the basis of the one-dimension infinite element theory, the coordinate translation and shape function of 3D point-radiate 8-node and 4-node infinite elements are derived. They are coupled with 20-node and 8-node finite elements to compute the compression distortion of the prestressed anchorage segment. The results indicate that when the prestressed force acts on the anchorage head and segment, the stresses and the displacements in the rock around the anchorage head and segment concentrate on the zone center with the anchor axis, and they decrease with exponential forms. Therefore, the stresses and the displacement spindles are formed. The calculating results of the infinite element are close to the theoretical results. This indicates the method is right. This article introduces a new way to study the mechanism of prestressed anchors. The obtained results have an important role in the research of the anchor mechanism and engineering application.

     

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