Shearing Stress Model of Damage Bolt in Tunnel

Xiao Hua Xi; Shuan Cheng Gu

doi:10.4028/www.scientific.net/AMM.90-93.1761

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 90-93Shearing Stress Model of Damage Bolt in Tunnel

Shearing Stress Model of Damage Bolt in Tunnel

Abstract:

When bolt is damaged, character of stress is different from character of shear stress integrated bolt. Firstly, Based on the displacement formula of the tunnel surrounding rock，the shear stress and axial force calculation formula of integrated bolt are educed. Subsequence, based on the BOUSSINESG formula of displacement, models on fully grouted bolt shear stress and axial force of uniform rock are educed under pullout load. Consequently, the author deduces shear stress model of bolt damage (completely void of bolt and grouting), combining modes on shear stress and axial force of integrated bolt and shear stress model of bolt under pullout load..

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Periodical:

Applied Mechanics and Materials (Volumes 90-93)

Pages:

1761-1767

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.90-93.1761

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Online since:

September 2011

Authors:

Xiao Hua Xi, Shuan Cheng Gu

Keywords:

Damage Bolt, Neutral Point, Pullout Load, Shear Stress of the Bolt

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References

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