Proceedings of the 2023 9th International Conference on Advances in Energy Resources and Environment Engineering (ICAESEE 2023)

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Classification and engineering application of tunnel surrounding rock based on the relationship between rock mass quality index and rock firmness coefficient

Authors
Huxiang Hou1, Yirui Zhao2, Jie Li1, Zhanping Song2, 3, Xianze Tao4, Shixiong He3, *
1China Road and Bridge Corporation, Beijing, 100011, China
2School of Civil Engineering, Xi’an University of Architecture and Technology, Xi’an, 710055, China
3Shaanxi Provincial Key Laboratory of Geotechnical and Underground Space Engineering, Xi’an University of Architecture and Technology, Xi’an, 710055, China
4CCCC Fourth Highway Engineering Bureau Co., LTD, Beijing, 100022, China
*Corresponding author. Email: 1597906805@qq.com
Corresponding Author
Shixiong He
Available Online 14 May 2024.
DOI
10.2991/978-94-6463-415-0_50How to use a DOI?
Keywords
Tunnel engineering; Rock mass classification; Basic quality of rock mass; Rock firmness; Relational equation; Parameter estimation
Abstract

The evaluation of rock mass integrity is of great significance to tunnel engineering. In addition to the number of volumetric joints, the quantitative classification of rock mass integrity mainly relies on wave velocity test to obtain Kv for quantitative classification. As a statistical method to evaluate the quality of rock mass, RQD is also a quantitative analysis method of rock mass integrity. With the development of the Belt and Road construction project, the contradictory situation of different specifications put forward a serious examination of the construction. This paper is based on the principle of volumetric joint equivalence, the empirical formula of volumetric joint coefficient expressed by integrity coefficient(KV)and rock quality index(RQD)was used, and the relationship between KV and RQD was deduced. Based on the principle of equivalent uniaxial compressive strength, used to rock firmness coefficient(f)and rock mass basic quality index(BQ)respectively the rock uniaxial compressive strength of empirical formula, obtained in this paper, the relationship between BQ and f suggested in this paper is obtained, and the corresponding table of the relationship between F Methods and BQ Methods is established. The research results have been successfully applied in the scheme modification and optimization design of the south-north trans-ridge tunnel in Kyrgyzstan, it provides reference for tunnel construction in countries along the “Belt and Road”.

Copyright
© 2024 The Author(s)
Open Access
Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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Volume Title
Proceedings of the 2023 9th International Conference on Advances in Energy Resources and Environment Engineering (ICAESEE 2023)
Series
Atlantis Highlights in Engineering
Publication Date
14 May 2024
ISBN
10.2991/978-94-6463-415-0_50
ISSN
2589-4943
DOI
10.2991/978-94-6463-415-0_50How to use a DOI?
Copyright
© 2024 The Author(s)
Open Access
Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

Cite this article

risenwbib
TY  - CONF
AU  - Huxiang Hou
AU  - Yirui Zhao
AU  - Jie Li
AU  - Zhanping Song
AU  - Xianze Tao
AU  - Shixiong He
PY  - 2024
DA  - 2024/05/14
TI  - Classification and engineering application of tunnel surrounding rock based on the relationship between rock mass quality index and rock firmness coefficient
BT  - Proceedings of the 2023 9th International Conference on Advances in Energy Resources and Environment Engineering (ICAESEE 2023)
PB  - Atlantis Press
SP  - 476
EP  - 485
SN  - 2589-4943
UR  - https://doi.org/10.2991/978-94-6463-415-0_50
DO  - 10.2991/978-94-6463-415-0_50
ID  - Hou2024
ER  -