Research on Spacial Displacement Regulations in Soft Surrounding Rock Tunnel

Bao Long Lin

doi:10.4028/www.scientific.net/AMR.690-693.886

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 690-693Research on Spacial Displacement Regulations in...

Research on Spacial Displacement Regulations in Soft Surrounding Rock Tunnel

Abstract:

Based on the engineering background of Dongkeling tunnel of Guizhou-Guangzhou high-speed rail, construction process in soft surrounding rock is simulated by using finite difference software——FLAC according to large-deformation characteristics in water-rich and weathering altered granite weak surrounding rock. Several aspects, such as vault settlement, invert uplift, clearance convergence, surface settlement, the maximum and minimum principal stress of the initial support and plastic zone of surrounding rock, are analyzed to determine the tunnel stability with different construction methods.

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Periodical:

Advanced Materials Research (Volumes 690-693)

Pages:

886-889

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.690-693.886

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Online since:

May 2013

Authors:

Bao Long Lin*

Keywords:

Large Deformation, Numerical Simulation, Soft Rock, Stability of Surrounding Rock

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* - Corresponding Author

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