Gallery
Photo
[June 11, 2024] Excavated rock being carried out from the bottom part of the main cavern
[June 11, 2024]
The main cavern being excavated to a depth of 24 m in the barrel section
【2024/6/11】
The main cavern being excavated to a depth of 24 m in the barrel section
[Mar 19, 2024]
The main cavern being excavated to a depth of 20 m in the barrel section
[Feb 16, 2024]
The main cavern being excavated to a depth of 12 m in the barrel section
[Feb 1, 2024]
The water purification system room under dust-proof coating
[Feb 1, 2024]
The main cavern being excavated to a depth of 6 m in the barrel section
[Dec 13, 2023]
The main cavern being excavated to a depth of 3 m in the barrel section
[Oct 03, 2023]
Completion of the main cavern dome section
[Oct 03, 2023]
Completion of the main cavern dome section
[Jul 13, 2023]
The cavern for the water purification system (Updated)
[Jul 11, 2023]
The cavern for the water purification system (Updated)
[May 18, 2023]
Excavation of the cavern for the water purification system
[May 18, 2023]
The dome section of the main cavern
[Apr 27, 2023]
The dome section of the main cavern
[Mar 31, 2023]
The dome section of the main cavern
[Mar 14, 2023]
The dome section of the main cavern
[Mar 14, 2023]
Excavation of the cavern for the water purification system
[Nov 17, 2022]
The top center of the dome section
[Nov 04, 2022]
Excavation of the circular tunnel is complete.-
[Jul 01, 2022]
Construction staffs at the center of the cavern dome -
[Jun 23, 2022]
The tunnel excavation has reached the center of the cavern dome -
[May 10, 2022]
The first branch of the approach tunnels (updated) -
[Apr 19, 2022]
The first branch of the approach tunnels -
[Jun 07, 2021]
Status of excavation of the access tunnel on June 7 where shotcrete application is in progress. -
[May 13, 2021]
The access tunnel entrance (front view) -
[May 06, 2021]
The access tunnel entrance where the tunnel supporting work is in progress. -
[May 06, 2021]
The access tunnel entrance when the excavation has just started. -
The new photosensors developed for HK
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The “HK center” mark is found at the ceiling near the dead end
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The adit to investigate the geological survey of the Hyper-Kamiokande dome
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The boring which penetrates through the planned position of the cavern for the investigation
of its neighborhood.
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Schematic image of Hyper-Kamiokande detector
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Illustration of Hyper-Kamiokande detector
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Rock sample taken from a soil survey at the proposed Hyper-Kamiokande site. The rock consists
mainly of homogeneous hard gneiss and Inishi migmatite and is suitable for the excavation of a
large cavern.
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Illustration of proton decay
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