Influence of Dilation on the Axial Load of Bolt as Joint Subjected to Shearing

Wen Qiang Chen; Zhi Xin Jia; Yu Fei Zhao; Ji Jun Zhou; Xing Chao Lin

doi:10.4028/www.scientific.net/AMM.405-408.326

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 405-408Influence of Dilation on the Axial Load of Bolt as...

Influence of Dilation on the Axial Load of Bolt as Joint Subjected to Shearing

Abstract:

Based on the load transfer mechanism of bolts, the relationship between the axial load and shear displacement of bolt changing with the dilatancy of joint was analyzed, then the theoretical solutions of axial load of the bolt were verified by the direct shear test of bolted rock mass with different normal stress (0.5MPa, 0.7MPa, 1.0MPa) applied on the joint. The results show that the calculated values fit well with the results of tests; the increment of dilation angle can enhance the axial force of bolt quickly, but decrease the length of crushing failure zone.

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Periodical:

Applied Mechanics and Materials (Volumes 405-408)

Pages:

326-330

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.405-408.326

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Online since:

September 2013

Authors:

Wen Qiang Chen, Zhi Xin Jia, Yu Fei Zhao, Ji Jun Zhou, Xing Chao Lin

Keywords:

Axial Load, Bolt, Dilation Angle, Shear Displacement

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References

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