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JAEA Reports

Collection of measurement data obtained in the extension of 350 m galleries at the Horonobe Underground Research Laboratory Project

Sakurai, Akitaka; Aoyagi, Kazuhei; Murakami, Hiroaki; Tamura, Tomonori; Fujieda, Daigo; Togase, Kazuki

JAEA-Data/Code 2024-005, 48 Pages, 2024/07

JAEA-Data-Code-2024-005.pdf:6.54MB
JAEA-Data-Code-2024-005-appendix(DVD-ROM).zip:1029.9MB

We currently focus on the three tasks that were identified as "key R&D challenges to be tackled" in the "Horonobe Underground Research Plan for the fiscal year 2020 Onwards". These tasks include "Study on near-field system performance in geological environment", "Demonstration of repository design options", and "Understanding of buffering behaviour of sedimentary rocks to natural perturbations". To implement these tasks, we will excavate shafts and galleries to the 500 m depth. From fiscal year 2023, we will start extension of the 350 m gallery excavating 3 horizontal gallery (Niches No.6, No.7, and Niche of the East Shaft No.1) and excavation of the shaft to the 500 m depth and excavation of 500 m gallery. This report summarizes the measurement data acquired at Niches No.6, No.7, and Niche of the East Shaft No.1 in fiscal year 2023 to accumulate the basic data for carrying out the Observational Construction Program for the excavation of the shaft to the 500 m depth and galleries at the 500 m depth.

Oral presentation

Support design and construction results for widening sections of deep shafts

Maeno, Katsuji*; Ichida, Toshiyuki*; Osada, Shohei*; Fujieda, Daigo; Nabana, Ryohei

no journal, , 

no abstracts in English

Oral presentation

Study on support design for deep shaft, 1

Ishii, Yoshiki*; Osada, Shohei*; Otsuka, Isamu*; Ichida, Toshiyuki*; Fujieda, Daigo; Nabana, Ryohei

no journal, , 

no abstracts in English

Oral presentation

Regarding safety measures regarding tunnel excavation work in methane gas-containing ground

Hirooka, Shinichi*; Maeno, Katsuji*; Oshino, Yoshiyuki*; Fujieda, Daigo; Nabana, Ryohei

no journal, , 

no abstracts in English

Oral presentation

Visualization of fractures by point cloud data on shaft wall

Yagi, Keisuke*; Sanoki, Satoru*; Hayano, Akira; Fujieda, Daigo; Nabana, Ryohei

no journal, , 

no abstracts in English

Oral presentation

Ventilation planning using ventilation network analysis in deep shafts and horizontal tunnels

Sanda, Takayoshi*; Maeno, Katsuji*; Sanoki, Satoru*; Fujieda, Daigo; Nabana, Ryohei

no journal, , 

no abstracts in English

Oral presentation

Study on support design for deep shaft, 2

Ichida, Toshiyuki*; Ishii, Yoshiki*; Osada, Shohei*; Otsuka, Isamu*; Fujieda, Daigo; Nabana, Ryohei

no journal, , 

no abstracts in English

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