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- W2392581308 abstract "Mechanical models have been established for four-lane and two-lane highway bias tunnels with different cover depths by using finite differential code. The mechanical behavior of loose rock masses is studied. The displacement and convergence ratio of surrounding rock are analyzed when the impact of shear dilation to the stability of surrounding rock is considered. From the numerical results,for the same conditions of dilation angle,rock property and cover depth,some conclusions are drawn that the shear fracture band of four-lane highway tunnel tends to be expanded to the ground than that of two-lane highway tunnel,that the displacement vector and crown settlement decreases with the increase in dilation angle,but the horizontal displacement of abutment increases,and that the influence of dilation angle on the large span tunnel is greater than that of small span tunnel." @default.
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- W2392581308 date "2007-01-01" @default.
- W2392581308 modified "2023-09-27" @default.
- W2392581308 title "Influence of dilation on stability of bias tunnels in weak rock" @default.
- W2392581308 hasPublicationYear "2007" @default.
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