Effect of the Soil Type on the Dynamic Response of a Tunnel under Surface Detonation
B. Mobaraki1, M. Vaghefi2
1Civil Engineering Department, Eastern Mediterranean University, Famagusta, Turkey
2Civil Engineering Department, Persian Gulf University, 75169-13817 Bushehr, Iran
Keywords: тип почвы, динамический отклик, численное моделирование, подземное сооружение, взрыв на поверхности, пик массовой скорости, soil type, dynamic response, numerical simulation, underground structure, surface detonation, peak particle velocity
Abstract
The analysis of the dynamic response of a circular tunnel in three types of soil at different depths under surface detonation of a 250-kg TNT charge reveals that the tunnel peak particle velocity and the failure zone length are sensitive to the soil type and material properties. The buried tunnel in silty clay sand has the least damage; the length of the failure zone is 5 m in the longitudinal direction and 0 to 60oC at the top arch.
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