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| Research on the Mechanical and Deformation Characteristic of Anchor Cable under Lateral Load |
| LI Jin - hua，ZHU Hai - xi，SONG Tao |
| (Xi’an University of Science and Technology，Xi’an，Shaanxi 710054，China) |
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Abstract Abstract : Research purposes ： With the rapid development of high - speed railway in the western region，it is inevitable to encounter a lot of slope anchor reinforcement engineering，which is due to the terrain and linear constraints. Because of the complex condition of the anchorage segment when the anchor cable passes through the slip surface of the slope，it needs to be further improved. Based on the double - parameter foundation model，the shear interaction between soil and rock was taken into account. A mechanical model of the anchorage segment under lateral load was established. Taking the reinforcement engineering of a loess slope as an example， the deformation law and stress characteristics of the
Anchorage segment under different parameters were analysed.
Research conclusions:(1) The calculating formulas were given，which was about the anchor cable deformation when
The anchorage segment passes through the slip surface，bending moment，shear and the reaction of rock and soil mass.
And computing method of loose zone of soil was also presented. (2 ) The results show that the shear and flexural stiffness have great influence on the deformation and stress of the anchor cable， which are mainly concentrated near the slip surface. (3) When the bending stiffness reaches a certain value，the shear displacement and the soil reaction decrease
linearly with the bending stiffness. The shear displacement increases linearly with shear load. (4) The research results
can provide reference for the design and construction of slope anchor cable reinforcement engineering on high - speed railway.
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Received: 12 December 2016
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2017, Vol. 34 
