Zobrazeno 1 - 10
of 1 904
pro vyhledávání: '"cobble"'
Autor:
Lusha M. Tronstad, Bryan P. Tronstad
Publikováno v:
Hydrobiology, Vol 3, Iss 3, Pp 209-223 (2024)
Large rivers are difficult to sample due to their size yet critical to monitor because humans heavily rely upon and alter them. Aquatic invertebrates are commonly used to assess the ecosystem quality of streams, but methods to sample large rivers are
Externí odkaz:
https://doaj.org/article/07858f4046e149878b679b2997431ba8
Publikováno v:
Chengshi guidao jiaotong yanjiu, Vol 27, Iss 8, Pp 331-334 (2024)
Objective Connecting Passage 1 in the interval of Jiujiang North Station and Longqiao Road Station of Chengdu Metro Line 19 Phase II is located in water-rich sandy cobble stratum. Limited by the location of the surrounding buildings (structures), it
Externí odkaz:
https://doaj.org/article/e434216e5b2442aa91c9e30d85d53c63
Publikováno v:
Chengshi guidao jiaotong yanjiu, Vol 27, Iss 2, Pp 117-123 (2024)
[Objective] Under the influence of corner effect in deep foundation pit, significant differences in deformation occur in the retaining structure at the pit corners. Buildings along various directions of the foundation pit experience varying settlemen
Externí odkaz:
https://doaj.org/article/23fad9349a8c4a8fafadd4a937647710
Publikováno v:
Journal of Rock Mechanics and Geotechnical Engineering, Vol 16, Iss 1, Pp 192-212 (2024)
This study focuses on the analytical prediction of subsurface settlement induced by shield tunnelling in sandy cobble stratum considering the volumetric deformation modes of the soil above the tunnel crown. A series of numerical analyses is performed
Externí odkaz:
https://doaj.org/article/306335cdcc6345bd855c7d6f5b9a93bc
Publikováno v:
Underground Space, Vol 11, Iss , Pp 189-203 (2023)
This paper focuses on the prediction of ground surface settlement induced by shield tunnelling in sandy cobble stratum. Based on the stochastic medium theory, an analytical solution to predict the surface settlement is developed considering the diffe
Externí odkaz:
https://doaj.org/article/c9dc7bf1ce6f48b990bc68a198815d2c
Publikováno v:
Underground Space, Vol 10, Iss , Pp 199-216 (2023)
In order to investigate the influence of face instability for tunnels with different burial depths in sandy cobble strata on earth pressure and the instability region, geomechanical model tests and numerical simulations were performed. The continuous
Externí odkaz:
https://doaj.org/article/62f18f49e11b451487fdf38c42954fed
Publikováno v:
Frontiers in Earth Science, Vol 11 (2023)
The sandy cobble stratum presents a high risk for underground tunnel construction due to its low cohesive properties and susceptibility to loosening and falling. The use of Advanced ductule for grouting reinforcement inevitably results in vibrations,
Externí odkaz:
https://doaj.org/article/e7f2ba2e342842abbd3044ca4830300c
Autor:
Ricardo Andrés García-León, Albert Sanchez-Torrez, Williams Rincon-Cardenas, Nelson Afanador-Garcia, Luis Moreno-Pacheco, Marco Lanziano-Barrera
Publikováno v:
Dyna, Vol 90, Iss 227 (2023)
This study presents an experimental study to improve the mechanical properties of a concrete cobble using statistical software. First, an experimental design was carried out using a statistical software to obtain the different mixtures of cement with
Externí odkaz:
https://doaj.org/article/44a45216c96f4912b55cde210011226d
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