Masashi Nakayama - My portal

Profile Information

Affiliation: Japan Atomic Energy Agency

J-GLOBAL ID: 202101006967643043
researchmap Member ID: R000017784

Research Areas

Other / Other /

Papers

Electrochemical measurements in various environments; Corrosion monitoring of carbon steel in deep underground environment

Taniguchi Naoki, Nakayama Masashi

Zairyo To Kankyo, 67(12) 487-494, Dec, 2018 Peer-reviewed
Evolution of the excavation damaged zone around a modelled disposal pit; Case study at the Horonobe Underground Research Laboratory, Japan

Aoyagi Kazuhei, Miyara Nobukatsu, Ishii Eiichi, Nakayama Masashi, Kimura Shun

Proceedings of 13th SEGJ International Symposium (USB Flash Drive), 5, Nov, 2018 Peer-reviewed
A Study of methods to prevent piping and erosion in buffer materials intended for a vertical deposition hole at the Horonobe Underground Research Laboratory

Jo Mayumi*, Ono Makoto*, Nakayama Masashi, Asano Hidekazu*, Ishii Tomoko*

Geological Society Special Publications, 482 16, Sep, 2018 Peer-reviewed
Rapid measurement of the chloride diffusion coefficient in concrete from combination of non-steady-state migration experiment and EPMA

Ogino Masataka*, Owaki Eiji*, Shirase Mitsuyasu*, Nakayama Masashi

Konkurito Kogaku Nenji Rombunshu (DVD-ROM), 39(1) 703-708, Jul, 2017 Peer-reviewed
Confirmation of the applicability of low alkaline cement-based material in the Horonobe Underground Research Laboratory

Nakayama Masashi, Niunoya Sumio*, Minamide Masashi*

Genshiryoku Bakkuendo Kenkyu (CD-ROM), 23(1) 25-30, Jun, 2016 Peer-reviewed
Dipole tracer migration and diffusion tests in fractured sedimentary rock at Horonobe URL

Tanaka Shingo*, Yokota Hideharu, Ono Hirokazu, Nakayama Masashi, Fujita Tomoo, Takiya Hiroaki*, Watanabe Naoko*, Kozaki Tamotsu*

Proceedings of 23rd International Conference on Nuclear Engineering (ICONE-23) (DVD-ROM), 6, May, 2015 Peer-reviewed
Study on long-term leaching behavior of low alkaline cement

Hitomi Takashi*, Iriya Keishiro*, Nakayama Masashi, Sato Haruo

Proceedings of 3rd International Conference on Sustainable Construction Materials \& Technologies (SCMT-3) (Internet), e0179\_1-e0179\_9, Aug, 2013 Peer-reviewed
Status of the Horonobe Underground Research Laboratory Project, Hokkaido, Japan, and future plan

Sato Haruo, Sugita Yutaka, Nakayama Masashi

Proceedings of 19th International Conference on Nuclear Engineering (ICONE-19) (CD-ROM), 10, Oct, 2011 Peer-reviewed
Low alkaline cement used in the construction of a gallery in the Horonobe Underground Research Laboratory

Nakayama Masashi, Sato Haruo, Sugita Yutaka, Ito Seiji*, Minamide Masashi*, Kitagawa Yoshito*

Proceedings of 13th International Conference on Environmental Remediation and Radioactive Waste Management (ICEM 2010) (CD-ROM), 51-56, Jan, 2011 Peer-reviewed
Durability evalation of steel reinforced low alkaline concrete using pozzolanic reaction based on exposure test in off-shore

Takeda Nobufumi*, Kuwae Hitomi*, Nakayama Masashi, Kobayashi Yasushi

Konkurito Kogaku Nenji Rombunshu (DVD-ROM), 31(1) 895-900, Jul, 2009 Peer-reviewed
Development of low alkaline cement considering pozzolanic reaction for support system in HLW repository construction

Nakayama Masashi, Iriya Keishiro*, Fujishima Atsushi, Mihara Morihiro, Hatanaka Koichiro, Kurihara Yuji*, Yui Mikazu

Materials Research Society Symposium Proceedings, Vol.932, 159-166, Jan, 2006 Peer-reviewed

Misc.

Horonobe Underground Research Laboratory Project Investigation Report for the 2022 Fiscal Year

Nakayama Masashi

JAEA-Review 2023-032, 159, Feb, 2024
Horonobe Underground Research Laboratory Project; Investigation program for the 2023 fiscal year

Nakayama Masashi

JAEA-Review 2023-019, 70, Nov, 2023
Horonobe Underground Research Laboratory Project; Investigation program for the 2022 fiscal year

Nakayama Masashi

JAEA-Review 2022-026, 66, Nov, 2022
Horonobe Underground Research Laboratory Project; Investigation report for the 2021 fiscal year

Nakayama Masashi

JAEA-Review 2022-025, 164, Nov, 2022
Horonobe Underground Research Laboratory Project; Investigation report for the 2020 fiscal year

Nakayama Masashi

JAEA-Review 2021-053, 133, Feb, 2022
Horonobe Underground Research Laboratory Project; Investigation program for the 2021 fiscal year

Nakayama Masashi

JAEA-Review 2021-009, 54, Jul, 2021
Horonobe Underground Research Laboratory Project; Investigation report for the 2019 fiscal year

Nakayama Masashi, Saiga Atsushi

JAEA-Review 2020-042, 116, Jan, 2021
Horonobe Underground Research Laboratory Project; Investigation program for the 2020 fiscal year

Nakayama Masashi, Saiga Atsushi

JAEA-Review 2020-022, 34, Nov, 2020
Investigation of deterioration and effect on geological environment of low alkaline cement in Horonobe Underground Research Laboratory

Nakayama Masashi

JAEA-Data/Code 2020-009, 98, Sep, 2020
Synthesis report on the R\&D for the Horonobe Underground Research Laboratory; Project carried out during fiscal years 2015-2019

Nakayama Masashi, Saiga Atsushi, Kimura Shun, Mochizuki Akihito, Aoyagi Kazuhei, Ono Hirokazu, Miyakawa Kazuya, Takeda Masaki, Hayano Akira, Matsuoka Toshiyuki …

JAEA-Research 2019-013, 276, Mar, 2020
Preliminary study on radiation effects of monitoring equipment

Nakayama Masashi, Tanai Kenji

JAEA-Review 2019-032, 32, Feb, 2020
The In-situ experiment for performance confirmation of engineered barrier system at Horonobe Underground Research Laboratory; Installation of engineered barrier system and backfilling the test niche at the 350m gallery

Nakayama Masashi, Ono Hirokazu

JAEA-Research 2019-007, 132, Dec, 2019
Collection of measurement data from in-situ experiment for performance confirmation of engineered barrier system at Horonobe Underground Research Laboratory (until March, 2018)

Nakayama Masashi, Ono Hirokazu, Nakayama Mariko*, Kobayashi Masato*

JAEA-Data/Code 2019-003, 57, Mar, 2019
The In-situ experiment for overpack corrosion at Horonobe Underground Research Laboratory; Production and setting simulated overpack, buffer material blocks and heater

Nakayama Masashi

JAEA-Technology 2018-006, 43, Aug, 2018
The In-situ experiment for performance confirmation of engineered barrier system at Horonobe Underground Research Laboratory; Consideration of concrete-type plug composition

Nakayama Masashi, Niunoya Sumio*, Miura Norihiko*, Takeda Nobufumi*

JAEA-Research 2017-016, 62, Jan, 2018
Horonobe Underground Research Laboratory Project; Synthesis of Phase II (Construction Phase) investigations to a depth of 350m

Sato Toshinori, Sasamoto Hiroshi, Ishii Eiichi, Matsuoka Toshiyuki, Hayano Akira, Miyakawa Kazuya, Fujita Tomoo*, Tanai Kenji, Nakayama Masashi, Takeda Masaki …

JAEA-Research 2016-025, 2016(25) 313-2,1-313, Mar, 2017
Basic properties of the concrete using the low alkaline cement (HFSC) developed by JAEA

Seno Yasuhiro*, Nakayama Masashi, Sugita Yutaka, Tanai Kenji, Fujita Tomoo

JAEA-Data/Code 2016-011, 164, Nov, 2016
The In-situ experiment for performance confirmation of engineered barrier system at Horonobe Underground Research Laboratory; Production of casing drilling machine for large dimeter pit, simulated overpack, buffer material blocks and backfilling materials

Nakayama Masashi, Matsuzaki Tatsuji*, Niunoya Sumio*

JAEA-Research 2016-010, 2016(10) 57-2,1-57, Aug, 2016
Synthesized research report in the second mid-term research phase, Mizunami Underground Research Laboratory Project, Horonobe Underground Research Laboratory Project and Geo-stability Project (Translated document)

Hama Katsuhiro, Sasao Eiji, Iwatsuki Teruki, Onoe Hironori, Sato Toshinori, Fujita Tomoo, Sasamoto Hiroshi, Matsuoka Toshiyuki, Takeda Masaki, Aoyagi Kazuhei …

JAEA-Review 2016-014, 274, Aug, 2016
Collection of measurement data from in-situ experiment for performance confirmation of engineered barrier system at Horonobe Underground Research Laboratory (FY2015)

Nakayama Masashi, Ono Hirokazu, Nakayama Mariko*, Kobayashi Masato*

JAEA-Data/Code 2016-005, 55, Jul, 2016

Presentations

In-situ corrosion test of carbon steel overpacks at Horonobe Underground Research Facility

Taniguchi Naoki, Kitayama Ayami, Kawasaki Manabu*, Nakayama Masashi, Ono Hirokazu, Mitsui Seiichiro, Suzuki Hiroyuki*

腐食防食学会第70回材料と環境討論会
Countermeasures against piping and erosion of bentonite buffer; Piping inhibition due to pre-hydration

Shirase Mitsuyasu*, Ishii Tomoko*, Kobayashi Ichizo*, Jo Mayumi*, Ono Makoto*, Nakayama Masashi

Clay Conference 2022; 8th International Conference on Clays in Natural and Engineered Barriers for Radioactive Waste Confinement
Study for self-sealing process of EDZ and flow-paths factures learnt from spherical carbonate concretion formation

Yoshida Hidekazu*, Yamamoto Koshi*, Maruyama Ippei*, Karukaya Koichi*, Nakayama Masashi, Sakurai Akitaka, Sato Toshinori

令和3年度日本応用地質学会研究発表会
Field demonstration test for bentonite backfill removal in HORONOBE URL; Mechanical removal technique (auger method)

Jo Mayumi*, Motoshima Takayuki*, Iso Sachie*, Shirase Mitsuyasu*, Kobayashi Masato*, Nakayama Masashi

令和2年度土木学会全国大会第75回年次学術講演会
Field demonstration test for bentonite backfill removal in HORONOBE URL; Liquid removal technique (Water jet method)

Motoshima Takayuki*, Jo Mayumi*, Iso Sachie*, Shirase Mitsuyasu*, Kobayashi Masato*, Nakayama Masashi

令和2年度土木学会全国大会第75回年次学術講演会
In situ interactions of concretes with mudstones from Horonobe URL

Anraku Sohtaro, Sato Hisao*, Walker C.*, Amano Yuki, Sakurai Akitaka, Nakayama Masashi, Tachi Yukio

4th Asian Clay Conference (ACC 2020)
Evaluation of swelling deformation using buffer material swelling sensor on the full-scale in-situ engineered barrier system experiment

Kimura Shun, Nakayama Masashi, Kinota Kimihiro, Tanai Kenji, Niunoya Sumio*, Shimura Tomoyuki*, Fukaya Masaaki*

日本原子力学会2019年秋の大会
Shotclay in-situ test using soil-bentonite mixtures at Horonobe Underground Research Laboratory

Iso Sachie*, Motoshima Takayuki*, Shirase Mitsuyasu*, Kobayashi Masato*, Nakayama Masashi

2019年度土木学会全国大会第74回年次学術講演会
In-site test of a bentonite pellet backfilling method for prefabricated engineered barrier system module

Mori Takuo*, Niunoya Sumio*, Kobayashi Masato*, Nishimura Masanobu*, Nakayama Masashi

2019年度土木学会全国大会第74回年次学術講演会
Full-scale engineered barrier system experiment at Horonobe URL; Numerical analysis of coupled thermal-hydrological-mechanical processes

Ono Hirokazu, Takayama Yusuke, Nakayama Masashi

日本原子力学会2019年春の年会
Corrosion behavior of weld joint of carbon steel overpack under geological environment, 2; Corrosion behavior of engineering scale testing

Yamazaki Kazutoshi*, Takao Hajime*, Kikuchi Takahiro*, Kuriki Yoshiro*, Kobayashi Masato*, Kawakubo Masahiro*, Shirase Mitsuyasu*, Iwata Yumiko*, Tochigi Yoshikatsu*, Nakayama Gen*, Ono Makoto*, Nakayama Masashi

日本原子力学会2018年秋の大会
Study of the effect on surrounding rock and groundwater from shotcrete using low alkaline cement in Horonobe URL

Nakayama Masashi, Okamoto Reiko*, Shirase Mitsuyasu*

日本原子力学会2017年秋の大会
Study on methods to prevent piping and erosion in buffer materials intended for a vertical disposal pit, at Horonobe URL

Jo Mayumi*, Iwatani Takafumi*, Kawakubo Masahiro*, Ishii Tomoko*, Ono Makoto*, Nakayama Masashi

7th international Conference on Clays in Natural and Engineered Barriers for Radioactive Waste Confinement (Clay Conference 2017)
Planning construction and monitoring of engineered barrier system experiment by construction information modeling

Shirase Mitsuyasu*, Nago Makito*, Nakayama Masashi, Ono Hirokazu, Sanoki Satoru*, Shigehiro Michiko*

土木学会平成28年度全国大会第71回年次学術講演会
Research for the erosion of buffer material with the vertical disposal concept, 4; Numerical analysis of inflow control into the disposal pits using discrete fracture network model

Atsumi Hiroyuki*, Masumoto Kazuhiko*, Ishii Tomoko*, Jo Mayumi*, Nakayama Masashi, Ono Hirokazu

土木学会平成28年度全国大会第71回年次学術講演会
Research for the erosion of buffer material with the vertical disposal concept, 3; In situ tests on engineering scale at Horonobe URL

Ono Makoto*, Motoshima Takayuki*, Shirase Mitsuyasu*, Yokoyama Satoshi*, Jo Mayumi*, Ishii Tomoko*, Nakayama Masashi, Ono Hirokazu

土木学会平成28年度全国大会第71回年次学術講演会
A Measurement method for diffusivity coefficient of concrete by application of EPMA to an electrophoretic test of non-static state

Ogino Masataka*, Owaki Eiji*, Shirase Mitsuyasu*, Nakayama Masashi

土木学会平成28年度全国大会第71回年次学術講演会
Current status of the in-situ experiment for verification of performance of engineered barrier system in Horonobe Underground Research Laboratory

Nakayama Masashi, Ono Hirokazu, Shirase Mitsuyasu*, Niunoya Sumio*

日本原子力学会バックエンド部会第32回バックエンド夏期セミナー
Corrosion monitoring of carbon steel in bentonite at deep underground

Taniguchi Naoki, Kawasaki Manabu, Nakayama Masashi, Sugita Yutaka, Tachi Yukio, Honda Akira

腐食防食協会第62回材料と環境討論会
The In-situ experiment for verification of performance of engineered barrier system in Horonobe Underground Research Laboratory, 11; Construction of buffer material, backfill material and concrete plug

Nakayama Masashi, Shirase Mitsuyasu*, Niunoya Sumio*, Ono Hirokazu, Shimohara Masahiro*, Tanai Kenji

日本原子力学会2015年秋の大会