Shotclay in-situ test using soil-bentonite mixtures at Horonobe Underground Research Laboratory

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

In the high-level radioactive waste disposal project, backfilling the disposal tunnel using soil-bentonite mixtures has been developed. Authors have developed the shotclay method and machinery through elemental test on ground test site, and conducted in-situ verification test on Horonobe URL, underground test site deeper than 300m. In this paper, authors confirmed the workability and the quality of shotclay method in the underground conditions.

Language	:	Japanese
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Meeting title	:	2019年度土木学会全国大会第74回年次学術講演会
Held date	:	2019/09
Location (city)	:	高松
Location (country)	:	日本
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Keywords	:	放射性廃棄物; 吹付け; ベントナイト混合土; PEM
Research Facility	:	深地層研究所
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Article of JAEA R&D Review	:
Cooperating Institute	:	原子力環境整備促進・資金管理センター

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Registration No. : BB20190105
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