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滑坡滑向与轴线正交条件下隧道衬砌内力分析
（1中煤科工集团西安研究院有限公司，西安 710077；2西安科技大学，西安 710054）
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)
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.
.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
2018, Vol. 55 