Analysis of Plastic-Zone Radius Influenced by Mechanical Parameters in Tunnel Excavation and Support

Zhong Ming Su; Rui Liu

doi:10.4028/www.scientific.net/AMM.238.787

Paper Titles

Theoretical Calculation and Parametric Analysis of Tunnel Settlements due to Neighboring Over-Length Pile Groups
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Excavation Technology of Shield Tunneling in Mixed Ground
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Safety Analysis on the Structure of an Existing Metro Station Impacted by the Construction of an Adjacent Building
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Numerical Analysis of Effect of Blasting Vibration on Adjacent Roadway in 858 Mines
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Analysis of Plastic-Zone Radius Influenced by Mechanical Parameters in Tunnel Excavation and Support
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Introduction of NO-NO₂-O₃ Recycle into Model for Air Pollutant Dispersion from Tunnel Portals
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Underground Space Form Design of Large Centrifugal Shaker System and Analysis of Machine Foundation Vibration
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Research of Manually Excavated Pile Support for Large Foundation Pit
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Analysis of Settlement Reasons and Mechanism in Immersed Tunnel
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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 238Analysis of Plastic-Zone Radius Influenced by...

Analysis of Plastic-Zone Radius Influenced by Mechanical Parameters in Tunnel Excavation and Support

Abstract:

According to the elastic-plastic theory, the analytical formula of plastic zone radius is established for circular tunnel in its excavation and support, and the effect of anchor support is verified based on the radius of plastic zone from the perspective of measured axial force. The influences to plastic zone by the variations of mechanical parameters and resistance of support are quantitatively analyzed. The result is of great significance to the monitoring measurement and the dynamic design and construction of tunnel.