Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Explosion Dynamic Response Analysis of Loess Double-Line Tunnel Considering Ground Stress
Based on the coupled Euler-Lagrange (CEL) algorithm, the numerical simulation model of free air field and small clear distance two-line tunnel explosion in loess is established. The reliability of the numerical model is verified by the comparison between the air-field air explosion and the traditional empirical formula. The results show that when the scale distance is greater than 0.3m/kg1/3, the numerical simulation results agree well with the empirical formula. When CEL explodes, measuring points are arranged at the invert, soffit and arch of the tunnel, and the speed, acceleration and stress quickly reach the peak and constantly oscillate, and the attenuation speed is rapid and the attenuation degree is fast. When CEL explodes at the arch, the effect of shock wave is very weak, and the measuring point closest to the explosion source has the most obvious response, and the stress concentration is relatively obvious at the arch Angle.
Explosion Dynamic Response Analysis of Loess Double-Line Tunnel Considering Ground Stress
Based on the coupled Euler-Lagrange (CEL) algorithm, the numerical simulation model of free air field and small clear distance two-line tunnel explosion in loess is established. The reliability of the numerical model is verified by the comparison between the air-field air explosion and the traditional empirical formula. The results show that when the scale distance is greater than 0.3m/kg1/3, the numerical simulation results agree well with the empirical formula. When CEL explodes, measuring points are arranged at the invert, soffit and arch of the tunnel, and the speed, acceleration and stress quickly reach the peak and constantly oscillate, and the attenuation speed is rapid and the attenuation degree is fast. When CEL explodes at the arch, the effect of shock wave is very weak, and the measuring point closest to the explosion source has the most obvious response, and the stress concentration is relatively obvious at the arch Angle.
Explosion Dynamic Response Analysis of Loess Double-Line Tunnel Considering Ground Stress
Advances in Engineering res
Qiu, Yanjun (Herausgeber:in) / Feng, Weimin (Herausgeber:in) / Zhang, Zhiqiang (Herausgeber:in) / Ahmad, Fauziah (Herausgeber:in) / Wang, Nan (Autor:in) / Cao, Xiaoping (Autor:in)
International Conference on Civil Architecture, Hydropower and Engineering Management ; 2024 ; Kunming, China
31.01.2025
7 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
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