Soil-tunnel Interaction under Medium Internal Blast Loading. (2016)

• Record Type: Journal Article
• Authors: han, Yuzhen; Zhang, Lei; Yang, Xiuren
• Is Part Of: Procedia engineering. Volume 143(2016)
• Page Start: 403
• Page End: 410
• Publication Date: 2016
• Subjects: soil-tunnel interaction -- blast -- underground structures -- Finite Element method; Engineering -- Congresses; Engineering -- Periodicals; Engineering; Conference proceedings; Periodicals; 620.005
• DOI: 10.1016/j.proeng.2016.06.051
• Languages: English
• ISSNs: 1877-7058

Abstract

Abstract: A series of numerical simulations were carried out to study the interaction between subway tunnels and soils subjected to medium internal blast loading (< 200 kg of TNT equivalent). The excess pore-water pressure was studied with an existing soil model (FHWA) that can simulate pore-water pressure and effective soil pressure. A recently developed blast loading scheme that removes the necessity of modeling the explosive in the numerical models but still maintains the advantages of nonlinear fluid-structure interaction was used to study the process of blast wave propagation in the air domain inside the tunnel.