Analysis of Initial Stress-Strain State’s Influence on the Collapse of Tunnels

Cheng Chu; Yue Tang Zhao; Zhen Hui Li

doi:10.4028/www.scientific.net/AMM.353-356.1329

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Supporting Numerical Simulation of Roadway Surrounding Rock in Deep High Stress Based on Broken-Expand Deformation
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Study on Structural Design and Driving Process of a Subway Station with Large Transection by Tunneling Method
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Analysis of Initial Stress-Strain State’s Influence on the Collapse of Tunnels
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Stability Analysis of Storage Caverns in Bedded Salt Rock Formation
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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 353-356Analysis of Initial Stress-Strain State’s...

Analysis of Initial Stress-Strain State’s Influence on the Collapse of Tunnels

Abstract:

Numerical simulations of rock-buried tunnel collapse under plane pulse loads propagated from ground were performed using the nonlinear FEM software of LS-DYNA, the difference of structure collapse between the cases with initial stress-strain conditions being concerned and not concerned was observed. The calculations indicate that, provided other conditions are equal, when initial state is taken into account the collapse is more serious than that regardless of initial conditions. Initial stress-strain state has much influence on the underground structure’s dynamic response, hence the initial conditions should not be ignored when doing dynamic analysis of underground structures.

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Periodical:

Applied Mechanics and Materials (Volumes 353-356)

Pages:

1329-1334

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.353-356.1329

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Online since:

August 2013

Authors:

Cheng Chu, Yue Tang Zhao, Zhen Hui Li

Keywords:

Collapse, Ground Shock, Numerical Simulation, Tunnel

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