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- W2224979654 abstract "In order to study the adverse influence of blasting load type on the tunnel surrounding rock, based on the Mohr–Coulomb's theory, by using the FLAC3D software, we analysed the influence of the two kinds of loading mode, equivalent triangle pulse load and the particle vibration velocity, on the dynamic response of the surrounding rock. The results showed that two kinds of loading mode near the tunnel face, tunnel side wall horizontal vibration of the particle is far greater than that of the other particles; by loading velocity time history, most of the regional model of the maximum tensile stress exceeds the tensile strength of rock mass; while loading the triangle pulse, the maximum tensile stress of the most regional model exceeds the tensile strength of rock mass. Loading the triangle pulse of the vertical displacement is larger; the vault shows tensile failure. Plastic zone distribution is not in accordance with the actual rules. Therefore, damage effect analysis of blasting on the surrounding rock should consider blasting load types and puts forward the corresponding engineering measures." @default.
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- W2224979654 date "2015-11-01" @default.
- W2224979654 modified "2023-10-18" @default.
- W2224979654 title "Analysis of the dynamic influence of the input blasting load on the tunnel surrounding rock" @default.
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- W2224979654 doi "https://doi.org/10.1179/1432891715z.0000000001890" @default.
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