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http://dx.doi.org/10.7843/kgs.2007.23.10.33

Stability Assessment of Concrete Lining and Rock Bolts of the Adjacent Tunnel by Blast-Induced Vibration  

Jeon, Sang-Soo (Dept. of Civil Engrg., Inje Univ.)
Kim, Doo-Seop (Sanghap E&C)
Jang, Yang-Won (Dept. of Civil Engrg., Inje Univ.)
Publication Information
Journal of the Korean Geotechnical Society / v.23, no.10, 2007 , pp. 33-45 More about this Journal
Abstract
In this study, the blast-induced vibration effects on the structural stability of the adjacent tunnel were estimated with respect to the allowable peak particle velocity (PPV). The blasting distance from the tunnel satisfying the allowable PPV was estimated based on the analytical solutions, United States Bureau of Mines (USBM) suggestions, and the equations used in the subway in Seoul. The allowable blasting distance was estimated by using finite difference analysis (FDA) and the behavior of the concrete lining and rock bolts was examined and the stability of those was estimated during the blast. Research results show that the blast-induced vibration effects on the structural stability are negligible for the concrete lining but relatively large for the rock bolts.
Keywords
Blast-induced vibration; Numerical analysis; Peak particle velocity; Tunnel; Tunnel support;
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