Zobrazeno 1 - 10
of 120
pro vyhledávání: '"Yoshitaka NARA"'
Autor:
Yoshitaka NARA
Publikováno v:
Journal of MMIJ, Vol 140, Iss 6, Pp 37-41 (2024)
To ensure the long-term integrity of a rock mass, understanding the time-dependent fracturing is essential. For this reason, the study of subcritical crack growth in rock has been conducted by various researchers. It has been clarified that the influ
Externí odkaz:
https://doaj.org/article/fd1397905a1d4030bf5acd318bfa6e2a
Publikováno v:
Journal of MMIJ, Vol 138, Iss 4, Pp 44-50 (2022)
It is important to understand the long-term migration of radionuclides when considering rock engineering projects such as the geological disposal of radioactive waste. The network of fractures and pores in a rock mass plays a major role in fluid migr
Externí odkaz:
https://doaj.org/article/acf76fe56ae747069f1551453976b035
Publikováno v:
Geomatics, Natural Hazards & Risk, Vol 11, Iss 1, Pp 2615-2633 (2020)
A numerical time-dependent deformation model of rock by incorporating the stress corrosion model into a three-dimensional discrete element code was established to investigate time-dependent deformation and fracture evolution of surrounding rock aroun
Externí odkaz:
https://doaj.org/article/dc8da9c1a5274a71b3fb5ed6af184434
Publikováno v:
Journal of the Society of Materials Science, Japan. 71:228-234
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::60837570be8fb20a1d80a7659d72b8df
https://doi.org/10.2472/jsms.71.228
https://doi.org/10.2472/jsms.71.228
Publikováno v:
Journal of the Society of Materials Science, Japan. 71:235-242
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d23c463587e1eb6759c659fc9dadddab
https://doi.org/10.2472/jsms.71.235
https://doi.org/10.2472/jsms.71.235
Publikováno v:
Geomatics, Natural Hazards & Risk, Vol 11, Iss 1, Pp 2615-2633 (2020)
A numerical time-dependent deformation model of rock by incorporating the stress corrosion model into a three-dimensional discrete element code was established to investigate time-dependent deformation and fracture evolution of surrounding rock aroun
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ccc195f73804d3cba408aaae05efddab
https://doaj.org/article/dc8da9c1a5274a71b3fb5ed6af184434
https://doaj.org/article/dc8da9c1a5274a71b3fb5ed6af184434
Publikováno v:
Materials, Vol 6, Iss 7, Pp 2578-2594 (2013)
For cementitious composites and materials, the sealing of fractures can occur in water by the precipitation of calcium compounds. In this study, the sealing behavior in a macro-fractured high-strength and ultra-low-permeability concrete (HSULPC) spec
Externí odkaz:
https://doaj.org/article/62022c8cbfe649ff9765eceaa32207c2
Publikováno v:
Materials transactions. 61(11):2134-2138
High strength and ultra low permeability concrete (HSULPC) is being considered as a material used to package transuranic (TRU) waste for disposal in geological repositories. Therefore, information on the permeability of HSULPC is essential. Permeabil
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fe9e8ea77a7bc9b6ae756c36eddc24c6
http://hdl.handle.net/2115/79905
http://hdl.handle.net/2115/79905
Autor:
Yoshitaka Nara, Sang-Ho Cho, Se-Wook Oh, Daisuke Fukuda, Erina Nihei, Yoshiaki Fujii, Jun-ichi Kodama
Publikováno v:
MATERIALS TRANSACTIONS. 61:1767-1774
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2520a67af730719a17d927c4f180ba22
https://doi.org/10.2320/matertrans.z-m2020833
https://doi.org/10.2320/matertrans.z-m2020833
Publikováno v:
Clay Minerals. 53(4):721-732
Clay-mineral type and content, bulk mineralogical composition and alteration of bentonite are very important factors for the ultra-long-term stabilization of barriers and backfills in radioactive waste disposal. This study investigates the effects of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c1f99b0b9fd9987bbe2f08c44feb905a
http://hdl.handle.net/2433/242870
http://hdl.handle.net/2433/242870