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Volume 34 Issue 5
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DUAN Jian, YAN Zhi-xin, GUO Rui-jian, LIU Zi-zhen, REN Zhi-hua. Failure analysis of soil anchors induced by loose interface under pullout load[J]. Chinese Journal of Geotechnical Engineering, 2012, 34(5): 936-941.
Citation: DUAN Jian, YAN Zhi-xin, GUO Rui-jian, LIU Zi-zhen, REN Zhi-hua. Failure analysis of soil anchors induced by loose interface under pullout load[J]. Chinese Journal of Geotechnical Engineering, 2012, 34(5): 936-941.
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Failure analysis of soil anchors induced by loose interface under pullout load

  • 1. Shool of Civil Engineering and Mechanics, Lanzhou University, Lanzhou 730000 , China ; 2. Key Laboratory of Mechanics on Disaster and Environment in Western China, Ministry of Education, Lanzhou 730000 , China ; 3. School of Civil Engineering and Architecture, Taizhou University, Taizhou 318000 , China

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  • Published Date: May 19, 2012
    Graphical Abstract
    • Abstract
  • According to the presumption of the interface stick-slip constitutive model and the fundamental principles of the shear displacement method, a theoretical formula for the critical loose pullout load of soil anchors and an inherent relationship formula between anchor pullout load and loose length are derived. The redistribution of anchor shear stress is caused by stick-slip properties of the interface, and the loading is transmitted to the remote end of anchorage system, which aggravates the deterioration of interior anchor. Based on the size relationship between interface shear strength and residual strength, the failure types of soil anchors can be divided into progressive and bursting ones. The discriminant criterion and the theoretical solution to the ultimate load in accordance with the failure of anchor pullout are proposed. Finally, based on the data of anchor pullout tests, the feasibility of the proposed method is verified through calculation and comparative analysis.
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    • References (14)
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