Field Monitoring of Surrounding Rock Stress in Tunnel Construction

Ying Na Dong; Qiang Huang

doi:10.4028/www.scientific.net/AMM.170-173.1735

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 170-173Field Monitoring of Surrounding Rock Stress in...

Field Monitoring of Surrounding Rock Stress in Tunnel Construction

Abstract:

The surrounding rock stress field monitor has been done in excavation by vibrating wire transducer. The field monitoring data are compared with numerical simulation results. The result shows: Vibrating wire transducer can record the stress variation of surrounding rock and support. Surrounding rock stress changes violently at every excavation step, such as lower bench excavation, the stress variation is mainly controlled by the spatial effect. When the distance from excavation face to the monitoring section is more than a tunnel diameter, the rock stress variation is mainly affected by time and it is relatively smooth and continuous.

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Periodical:

Applied Mechanics and Materials (Volumes 170-173)

Pages:

1735-1739

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.170-173.1735

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Online since:

May 2012

Authors:

Ying Na Dong, Qiang Huang

Keywords:

Bench Method, Field Monitor, Numerical Simulation, Surrounding Rock Stress, Tunnel Construction

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References

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