Proceedings of the 2023 5th International Conference on Structural Seismic and Civil Engineering Research (ICSSCER 2023)

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Study on wave propagation law of blasting stress and crack evolution characteristics of granite with weak interlayer

Authors
Tao Wang1, *
1Railway 16th Bureau Group road & Bridge Engineering Co Ltd,, Beijing, 100018, China
*Corresponding author. Email: zhangpgut@163.com
Corresponding Author
Tao Wang
Available Online 7 December 2023.
DOI
10.2991/978-94-6463-312-2_5How to use a DOI?
Keywords
blasting; weak intercalation; blasting stress wave; crack growth; numerical simulation
Abstract

To investigate the influence of weak interlayers in rock mass on the propagation law of blasting stress waves and the propagation characteristics of rock mass blasting cracks, numerical simulation methods were used to study the propagation law of blasting stress waves and the propagation characteristics of rock mass damage cracks in granite tunnels without and containing weak interlayers, based on a certain excavation project of a granite tunnel containing weak interlayers. The research results indicate that when there are weak interlayers distributed around the blast hole, on the one hand, the weak interlayers will have a blocking and reflecting effect on the blasting stress wave, and on the other hand, the existence of weak interlayers will change the evolution direction of rock blasting cracks, which is manifested as over-excavation in the weak interlayered area in engineering. The research results can provide guidance for the design of tunnel blasting parameters with similar adverse geological conditions.

Copyright
© 2023 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 5th International Conference on Structural Seismic and Civil Engineering Research (ICSSCER 2023)
Series
Atlantis Highlights in Engineering
Publication Date
7 December 2023
ISBN
978-94-6463-312-2
ISSN
2589-4943
DOI
10.2991/978-94-6463-312-2_5How to use a DOI?
Copyright
© 2023 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  - Tao Wang
PY  - 2023
DA  - 2023/12/07
TI  - Study on wave propagation law of blasting stress and crack evolution characteristics of granite with weak interlayer
BT  - Proceedings of the 2023 5th International Conference on Structural Seismic and Civil Engineering Research (ICSSCER 2023)
PB  - Atlantis Press
SP  - 31
EP  - 39
SN  - 2589-4943
UR  - https://doi.org/10.2991/978-94-6463-312-2_5
DO  - 10.2991/978-94-6463-312-2_5
ID  - Wang2023
ER  -