Research on Influence of Span on Surrounding Rock Quality of Tunnels

Xiao Jie Geng; Xiao Wei Du; Qiong Yan

doi:10.4028/www.scientific.net/AMR.919-921.869

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Key Technology for the Structure Design of Mining Metro Station in Rock Strata
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Mechanism Analysis of Hydraulic Cutting Outburst Prevention Measure Applied to Mining Area of Heilongjiang Province
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Research of Train Wind Characteristics in High-Speed Railway Tunnel
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Stress Management in Rock Drivage Team Based on Fault Tree Analysis Method
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Study of the Safety Evaluation of Urban Subway Operation Based on Extenics
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Study on Model of Back-Filled Grouting of Shield Tunnel
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Study on Structural Design and Driving Process of Subway Station Passageway Crossing Urban Trunk Road by Tunneling Method
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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 919-921Research on Influence of Span on Surrounding Rock...

Research on Influence of Span on Surrounding Rock Quality of Tunnels

Abstract:

The influence of tunnel’s span on rock mass quality is getting more and more recognition along with increasing large span tunnels’ construction. As national standard of China, BQ qualification is generally applied. Based on the measured data and numerical experiment, the relationship between surrounding rock displacement and quality evaluation is studied, and span effect correction factor is established. The modified rock quality index can provide the basis of guiding the design and construction of tunnels.

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Periodical:

Advanced Materials Research (Volumes 919-921)

Pages:

869-872

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.919-921.869

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Online since:

April 2014

Authors:

Xiao Jie Geng*, Xiao Wei Du, Qiong Yan

Keywords:

BQ Qualification, Correction Factor, Span, Surrounding Rock Quality

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* - Corresponding Author

References

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