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- W2380484481 abstract "The impact of stress concentration at the feet of vertical ridge loess tunnel(hole) on the rock structure safety factor was examined,according to the static and dynamic analysis model,by using the shear strength reduction method and the ANSYS software.Based on the existing study results,the change of plastic zone and the safety factor were analyzed under the action of gravity and seism with right angles feet of vertical ridge loess tunnel(hole),and through numerical examples the change rules of rock structure safety factor were studied with arc angles feet of different radius.The results show that: the plastic zone under the gravity action appears initially at the upper foot of the tunnel(hole),the stress concentration at right angles feet has no effect on wall rock safety factor;the plastic zone under earthquake action appears initially at the right foot of the tunnel(hole),but the decrease of safety factor is not mainly due to the stress concentration.So a theory basis will be provided,the study provides a theoretical base for the construction of vertical ridge loess tunnel and its engineering application." @default.
- W2380484481 created "2016-06-24" @default.
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- W2380484481 date "2011-01-01" @default.
- W2380484481 modified "2023-09-24" @default.
- W2380484481 title "Earthquake stability analysis of wall rock of vertical ridge loess tunnel——the impact of stress concentration at tunnel feet on safety factor" @default.
- W2380484481 hasPublicationYear "2011" @default.
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