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- W2388791639 abstract "The investigation of stability and failure mechanism of shallow-buried tunnel in undrained clay has important significance to tunnel design,construction and theoretical progress. Based on the existing finite element upper bound theory,the triangular elements with constant strain rate was adopted to discrete computational domain,and the velocity discontinuities were set up on all the adjacent borders of the triangular elements,while the Mohr-Coulomb criterion was linearized using circumscribing polygon to form a linear programming model. Then,a computer program using Matlab for finite element upper bound solution was compiled. The more accurate results of stability factors of shallow-buried tunnel in undrained clay ground were obtained by using the computer program of finite element upper bound solution with discretization of computational domain of finite element mesh. And the reliability of the obtained results was verified by comparing with the existing data in literature. The characteristic of the failure mechanism during occurrence of plastic flow was analyzed,and the influential factors of tunnel stability factor were discussed. The regulation of failure mechanism evolution for different parameters was also summarized." @default.
- W2388791639 created "2016-06-24" @default.
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- W2388791639 date "2010-01-01" @default.
- W2388791639 modified "2023-09-23" @default.
- W2388791639 title "FINITE ELEMENT ANALYSIS OF UPPER BOUND SOLUTION OF SHALLOW-BURIED TUNNEL STABILITY IN UNDRAINED CLAY" @default.
- W2388791639 hasPublicationYear "2010" @default.
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