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Finite element simu...
Finite element simulation of shotcrete exposed to underground explosions
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- Ahmed, Lamis (författare)
- KTH,Betongbyggnad
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- Malm, Richard (författare)
- KTH,Betongbyggnad
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- Ansell, Anders (författare)
- KTH,Betongbyggnad
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(creator_code:org_t)
- Nordic Concrete Federation, 2012
- 2012
- Engelska.
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Ingår i: Nordic Concrete Research. - : Nordic Concrete Federation. - 0800-6377. ; :45, s. 59-74
- Relaterad länk:
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https://urn.kb.se/re...
Abstract
Ämnesord
Stäng
- An elastic finite element model is used tosimulate theinducedstress waves from blasting, propagating in rock towards shotcrete on a tunnel wall. Due to the inhomogeneous nature of the rock, the stress wavesattenuate onitsway from the point of explosiontowardsthe shotcrete on the rock surface. Material damping for the rock-mass is estimated from in-situ measurements. The vibration resistance of the shotcrete-rock support system depends on the material properties of the shotcrete. Age-dependent material properties are varied to investigate the behaviour of young shotcrete subjected to blast loading. Finally, finite element analysis results are presented and verified through comparison with other numerical models, measurements and observations.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Samhällsbyggnadsteknik -- Infrastrukturteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Civil Engineering -- Infrastructure Engineering (hsv//eng)
Nyckelord
- Shotcrete
- rock
- v ibration
- blasting
- finite element analysis
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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