Zobrazeno 1 - 10
of 282
pro vyhledávání: '"Pereira Jean-Michel"'
Autor:
Pereira Jean-Michel
Publikováno v:
E3S Web of Conferences, Vol 382, p 11001 (2023)
In this paper, we discuss the thermo-hydro-mechanical behaviour of geomaterials at the light of their microstructure and its changes induced by multiphysics loading. After recalling the strong links between the microstructure and the water retention
Externí odkaz:
https://doaj.org/article/1f35f62c38e041bdb14bbb32df0df071
Publikováno v:
E3S Web of Conferences, Vol 382, p 09006 (2023)
Besides standard approaches, the soil water retention curve (SWRC) can be estimated either from pore size distribution obtained by mercury intrusion porosimetry or from the soil freezing characteristic curve. These methods are based on simplified law
Externí odkaz:
https://doaj.org/article/341d4d4f4b4d4532ad98583142c8048b
Impact of sand on the water retention properties of a bentonite/sand mixture by NMR characterization
Autor:
Eizaguirre Pablo, Tang Anh Minh, Maillet Benjamin, Sidi-Boulenouar Rahima, Chabot Baptiste, Bornert Michel, Pereira Jean-Michel, Dangla Patrick, Aimedieu Patrick, Talandier Jean, Vu Minh Ngoc
Publikováno v:
E3S Web of Conferences, Vol 382, p 14003 (2023)
Blocks of compacted bentonite/sand mixture, with a 40/60 proportion in dry mass, are being studied as an elementary component in the construction of seals in the French concept for high-levelradioactive waste disposal. In the disposal, the seal will
Externí odkaz:
https://doaj.org/article/894030ed1fdb436b9d5bdbce488f8c08
Publikováno v:
E3S Web of Conferences, Vol 382, p 03005 (2023)
P-wave velocity is regularly proposed as a proxy for water saturation when studying quasisaturated soils. However, several authors have underlined that this velocity can only be reliably correlated to water saturation if the pore fluid is “homogene
Externí odkaz:
https://doaj.org/article/a3a77f85c68740eba8e38c51993296fc
Autor:
Darde Benjamin, Tang Anh Minh, Roux Jean-Noël, Dangla Patrick, Pereira Jean-Michel, Talandier Jean, Vu Minh Ngoc
Publikováno v:
EPJ Nuclear Sciences & Technologies, Vol 6, p 1 (2020)
Pellet-based expansive clay materials are considered as a sealing material for closing the galleries in radioactive waste disposal concepts. In repository conditions, the granular mixture progressively homogenises upon hydration by the host rock pore
Externí odkaz:
https://doaj.org/article/ba792bf449e740ff85d48c59f0a1ea34
Autor:
Darde Benjamin, Tang Anh Minh, Pereira Jean-Michel, Dangla Patrick, Roux Jean-Noël, Talandier Jean, Vu Minh Ngoc
Publikováno v:
E3S Web of Conferences, Vol 195, p 02006 (2020)
Bentonite pellet-powder mixtures are candidate sealing materials in radioactive waste disposal concepts. The mixture is installed in galleries in dry state as a granular material. The material is progressively hydrated by the pore water of the host r
Externí odkaz:
https://doaj.org/article/1da4ba911b6e4b8b858d23e8cdb85c97
Publikováno v:
E3S Web of Conferences, Vol 205, p 11002 (2020)
The study of the mechanical behavior of gas hydrate bearing soils represents a major interest. The hydrate inclusions in sediments change their microstructure and their mechanical properties with it. We developed a numerical homogenization code in or
Externí odkaz:
https://doaj.org/article/5c912eb44d6541e0aea33d81d984a82d
Publikováno v:
E3S Web of Conferences, Vol 205, p 02007 (2020)
Large amounts of CO2 could be stored underground in deep rock reservoirs and could help reducing emissions into the environment. Carbon geo-storage technologies have several years in development and new techniques and materials are being studied to m
Externí odkaz:
https://doaj.org/article/da6be8a9983b4bd19d57b991747c77ec
Autor:
Than Vinh-Du, Tang Anh-Minh, Roux Jean-Noël, Pereira Jean-Michel, Aimedieu Patrick, Bornert Michel
Publikováno v:
EPJ Web of Conferences, Vol 140, p 08018 (2017)
We present an investigation into macroscopic and microscopic behaviors of wet granular soils using the discrete element method (DEM) and the X-ray Computed Tomography (XRCT) observations. The specimens are first prepared in very loose states, with fr
Externí odkaz:
https://doaj.org/article/954a9febc11549a280cbe8597b5050ef
Autor:
Khalili Mohamed Hassan, Roux Jean-Noël, Brisard Sébastien, Pereira Jean-Michel, Bornert Michel
Publikováno v:
EPJ Web of Conferences, Vol 140, p 02028 (2017)
A DEM simulation study of spherical beads with elastic-frictional contacts in oedometric compression is carried out for a wide variety of initial states, differing in solid fraction Φ, coordination number z (independent of Φ in dense systems) and i
Externí odkaz:
https://doaj.org/article/9c617b9e050d442bb59a6f85a75fc422