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December 17, 2019
The cornerstone fixing ceremony for the construction of the Kawakami Dam was held on Sunday, December 15, 2019. The cornerstone laying ceremony is a ceremony to pray for the safety of the construction work and the long-term security of the dam.
The ceremony was preceded by a safety ceremony (organized by the Obayashi JV), at which the cornerstone was laid to rest by the shinto priest of Omura Shrine, and the dedication of a sacred skewer by Obayashi Vice President Takehito Sato and other construction workers.
About 300 guests attended the cornerstone fixing ceremony hosted by the Japan Water Agency. After an address by Mr. Kanao, President of JWA, and congratulatory speeches by the guests, the cornerstone was fixed by officials of JWA and Obayashi Corporation JV. The cornerstone fixing ceremony consisted of a ceremony of "Chintei", "Imigote", and "Imitsuchi", followed by a ceremony of "Mainou". Concrete was transported and poured using the first tower crane operated automatically
in Japan, and the foundation stone was buried. Concrete compaction was also performed automatically using unmanned backhoe which has vibrator and concrete compaction determination technology .The cornerstone fixing ceremony ended without a hitch with all the attendees singing three chants and opening a kusudama (paper ball).
Obayashi Corporation will continue to construct the Kawakami Dam safely and with high quality by utilizing the ODICT® dam information construction technology.
1 Purification with water
2 The priest offers a prayer of thanksgiving
3 Cornerstone to be buried
4 Dedication of Tamagushi (skewer) by Mr. Sato, Vice President of Obayashi Corporation
1 Cornerstone fixing ceremony of Kawakami Dam
2 Aoyama drum performance by the Iga-Aoyama Drum Preservation Society
3 Organizer's speech by Mr. Kanao, President of Japan Water Agency
4 Progress report by Mr. Fuchigami, Director of Kawakami Dam Construction Station, Japan Water Agency
Project reports and speeches were displayed with subtitles on a large monitor in the venue using the latest network system.
5 Carrying in the foundation stone
6 Ceremony of “Chintei”
A ceremony to place mortar into the foundation of the cornerstone. It is meant to pave the way for the construction to proceed.
7 Ceremony of “Imigote”
This is performed to pave the way for the construction work to proceed.
8 The ritual of the “Imitsuchi”
This ceremony is meant to further strengthen the path of the construction work that has been set by the ceremony of Chintei and leveled by the ceremony of Imigote.
9 Ceremony of “Mainou”
A memorial stone with children's wishes written on it is buried together with the foundation stone.
10 Ceremony of “Mainou”
Automatic transport of concrete by tower crane
11 Ceremony of “Mainou”
Tower crane driver's seat
12 Ceremony of “Mainou”
Placing concrete
13 Ceremony of “Mainou”
Concrete compacting by unmanned backhoe which has vibrator
14 Commemorative photo with guests
Kawakami Dam cornerstone fixing ceremony (approx. 3 min. 30 sec.)
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