Research on Analysis and Assessment of Typical Occupational Safety Risks in Drilling and Blasting Excavation in The Son Trieu Tunnel, Vietnam

International Journal of Civil Engineering

© 2025 by SSRG - IJCE Journal

Volume 12 Issue 10

Year of Publication : 2025

Authors : Trinh Dang Hung, Dao Viet Doan

10.14445/23488352/IJCE-V12I10P115

How to Cite?

Trinh Dang Hung, Dao Viet Doan, "Research on Analysis and Assessment of Typical Occupational Safety Risks in Drilling and Blasting Excavation in The Son Trieu Tunnel, Vietnam," SSRG International Journal of Civil Engineering, vol. 12,  no. 10, pp. 185-194, 2025. Crossref, https://doi.org/10.14445/23488352/IJCE-V12I10P115

Abstract:

Currently, the transport infrastructure system in Vietnam is developing very strongly; a series of transport projects have been and are being implemented, including many routes that require building tunnels through mountains. The tunnel excavation method in Vietnam mainly uses drilling and blasting. In tunnel excavation by drilling and blasting, there are many risks of occupational safety loss, especially in drilling holes and loading blasting. The article is based on the results of a survey on occupational safety in the excavation of Son Trieu tunnel by drilling and blasting to analyze and assess occupational safety risks when drilling and loading blasting based on the probability of occurrence and severity of occupational safety losses. Based on the method of classifying risk levels and corresponding control measures, it can be seen that the stages in the construction of the Son Trieu tunnel have low to medium levels of occupational safety risks. The jobs with risk levels from level I ÷ II include: the stage of determining the core, measuring and drawing the tunnel face; Level II ÷ III includes: drilling holes on the face, loading explosives, and detonating. This result has helped the construction unit apply appropriate solutions to minimize unsafe incidents occurring during the construction of traffic tunnels in Vietnam.

Keywords:

Tunnel, Risks, Drilling and blasting, Unsafe work, Safety incident.

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