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MODERN TUNNELLING TECHNOLOGY 2018, Vol. 55 Issue (1) :100-106    DOI:
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Analysis of Internal Force of a Tunnel Lining in the Case of the Landslide Sliding Direction Being Orthogonal to Its Axis
(1 Engineering Geological Research Institute of Xi′an Research Institute of China Coal Technology Engineering Group, Xi′an 710077;2 Xi′an University of Science and Technology, Xi′an 710054)
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Abstract Based on the Tangjiayuan highway tunnel on the Xi′an-Baoji expressway, the influential factors regarding magnitude and direction of a landslide's thrust acting on the lining of an arched tunnel with a straight wall are analyzed in light of the positional relationship between the tunnel and the sliding surface. A theoretical calculation method for the internal force distribution of a semicircle arched tunnel lining is obtained, with the sliding direction being orthogonal to the axis. Using the Tangjiayuan tunnel as an example, the internal force distribution of a tunnel lining is obtained by theoretical calculation, and the rationality and validity are verified by FEM, with the results showing that this method can be used to calculate the internal force of a tunnel lining in the case of the landslide sliding direction being orthogonal to the tunnel axis.
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Keywords： Tunnel engineering   Landslide mass   Pressure of surrounding rock   Internal force of lining   Numerical analysis     
Abstract： Based on the Tangjiayuan highway tunnel on the Xi′an-Baoji expressway, the influential factors regarding magnitude and direction of a landslide's thrust acting on the lining of an arched tunnel with a straight wall are analyzed in light of the positional relationship between the tunnel and the sliding surface. A theoretical calculation method for the internal force distribution of a semicircle arched tunnel lining is obtained, with the sliding direction being orthogonal to the axis. Using the Tangjiayuan tunnel as an example, the internal force distribution of a tunnel lining is obtained by theoretical calculation, and the rationality and validity are verified by FEM, with the results showing that this method can be used to calculate the internal force of a tunnel lining in the case of the landslide sliding direction being orthogonal to the tunnel axis.
Keywords： Tunnel engineering,   Landslide mass,   Pressure of surrounding rock,   Internal force of lining,   Numerical analysis     
Cite this article:   
.Analysis of Internal Force of a Tunnel Lining in the Case of the Landslide Sliding Direction Being Orthogonal to Its Axis[J]  MODERN TUNNELLING TECHNOLOGY, 2018,V55(1): 100-106
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http://www.xdsdjs.com/EN/      或     http://www.xdsdjs.com/EN/Y2018/V55/I1/100
　
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