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Calculation of prestressed anchor segment by 3D infinite element

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Abstract

Based on 1D infinite element theory, the coordinate transformation and shape function of 3D point-radiation 4-node infinite elements were derived. They were coupled with 8-node finite elements to compute the compressive deformation of the prestressed anchor segment. The results indicate that when the prestressed force acts on the anchor segment, the stresses and displacements in the rock around the anchor segment are concentrated in the zone center with the anchor axis and are subjected to exponential decay. Therefore, the stresses and the displacement spindles are formed. The calculation results of the infinite element are close to the theoretical results.

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Authors and Affiliations

  1. Bridge Science Research Institute, Major Bridge Engineering Bureau, Ministry of Railway, Wuhan, 430034, China

    Yanfen Wang

  2. School of Civil Engineering and Mechanics, Huazhong University of Science & Technology, Wuhan, 430074, China

    Hongyang Xie & Yuanhan Wang

Authors
  1. Yanfen Wang
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  2. Hongyang Xie
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  3. Yuanhan Wang
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Correspondence to Yanfen Wang.

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Translated from Journal of Huazhong University of Science and Technology (Nature Science Edition), 2007, 35(9): 28 30 [译自: 华中科技大学学报自然科学版]

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Wang, Y., Xie, H. & Wang, Y. Calculation of prestressed anchor segment by 3D infinite element. Front. Archit. Civ. Eng. China 3, 63–66 (2009). https://doi.org/10.1007/s11709-009-0006-5

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  • DOI: https://doi.org/10.1007/s11709-009-0006-5

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