Application of seismic methods for determining the depth of the rock mass damage zone around the excavation profile by blasting
1 “PPG” d.o.o. Sarajevo, Supervising Engineer in tunnel construction, Bosnia and Herzegovina,
2 Krešo Geo d.o.o. Zagreb, Main supervising Engineer in tunnel construction, Croatia,
3 Faculty of Mining, Geology and Civil Engineering, University of Tuzla, Dean, Bosnia and Herzegovina,
4“FM INŽENJERING” d.o.o. Sarajevo, Tunnel inspector, Bosnia and Herzegovina.
Research Article
Global Journal of Engineering and Technology Advances, 2024, 18(03), 139–151.
Article DOI: 10.30574/gjeta.2024.18.3.0051
Publication history:
Received on 17 February 2024; revised on 26 March 2024; accepted on 28 March 2024
Abstract:
Research and determination of the blasting damage zone around the profile of tunnels or underground structures is a platform that would serve to confirm or correct blasting parameters and underground assemblies, that is, geotechnical and main tunnel projects. From the obtained research, the stability of the excavation profile, as well as the safety risk for equipment and personnel on the construction site, would be better understood. Considering the importance of the size of the damage zone of the rock mass in terms of its influence on stability, the amount of primary support elements required to achieve the stability of the excavated space, and the additional costs of stabilization of the excavation and the safety of people and equipment, the aforementioned problem was investigated and processed for specific cases and for the rock mass characteristic for the location in question. From the described research, the change in the elastic characteristics of the rock mass and the depth of the damage zone around the tunnel excavation profile were measured and calculated.
Keywords:
Excavation; Tunnel; Blasting; Damage Zone; Seismic; Cross-Hole; Refraction
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Copyright © 2024 Author(s) retain the copyright of this article. This article is published under the terms of the Creative Commons Attribution Liscense 4.0