Zobrazeno 1 - 10
of 199
pro vyhledávání: '"Günter Hofstetter"'
Autor:
Peter Gamnitzer, Matthias Neuner, Magdalena Schreter-Fleischhacker, Alexander Dummer, Thomas Mader, Stefan Smaniotto, Günter Hofstetter
Publikováno v:
Underground Space, Vol 14, Iss , Pp 357-376 (2024)
In the present work, important aspects of time-dependent nonlinear 3D finite element (FE) models for deep tunnel advance by the New Austrian Tunneling Method (NATM), characterized by repeated sequences of excavation, securing, and idle periods, are d
Externí odkaz:
https://doaj.org/article/fa174a0f5c134351ba40372b71d2828f
Autor:
Johannes Altenbach
Publikováno v:
ZAMM. 85:835-836
Publikováno v:
Applied Sciences, Vol 12, Iss 17, p 8532 (2022)
In engineering practice, numerical simulations of deep tunneling are commonly based on isotropic linear–elastic perfectly plastic rock models. Rock, however, commonly exhibits highly nonlinear and distinct direction-dependent mechanical behavior. T
Externí odkaz:
https://doaj.org/article/48fcabdfaf1a43bb890b5f9f729d8531
Autor:
Alfred Strauss
Publikováno v:
Beton- und Stahlbetonbau. 100:98-98
Autor:
Jacky Mazars
Publikováno v:
Mechanics of Cohesive-frictional Materials. 2:357-357
Publikováno v:
Materials, Vol 12, Iss 11, p 1745 (2019)
The durability and serviceability of concrete structures is influenced by both the early-age behavior of concrete as well as its long-term response in terms of shrinkage and creep. Hygro-thermo-chemo-mechanical models, as they are used in the present
Externí odkaz:
https://doaj.org/article/c3c4a050a3634fa59f8553504abbc5a8
Publikováno v:
Materials, Vol 12, Iss 5, p 791 (2019)
Hygro-thermo-chemo-mechanical modelling of time-dependent concrete behavior requires the accurate determination of a large set of parameters. In this paper, the parameters of a multiphase model are calibrated based on a comprehensive set of experimen
Externí odkaz:
https://doaj.org/article/c915c45780b843b9a871413b347d7bc9
Publikováno v:
International Journal of Structural and Civil Engineering Research. :273-277
Publikováno v:
Construction and Building Materials. 362:129726
Publikováno v:
IOP Conference Series: Earth and Environmental Science. 1124:012115
The mathematical description of the material behavior of rock is a demanding task in engineering practice. Rock is classified as a frictional cohesive material characterized by highly nonlinear mechanical behavior with irreversible deformation, strai