CLAMPING HARDWARE FOR UNDERWATER COFFERDAM AND METHOD FOR TIGHTENING CAISSON TO DAM BODY

Japanese Patent JP2014190072

A

PROBLEM TO BE SOLVED: To facilitate tightening of a caisson to the side of a dam body in the water and suppress variations of tension acting on clamping hardware after the tightening as much as possible.SOLUTION: Clamping hardware for underwater cofferdam has: a caisson side rod member 12 with a mounting part 12b to a block 1a of a caisson 1 at one end side, and a flange 12c and a fitting part 12d at the other side; and a dam body side rod member 13 with a mounting part 13b to anchor hardware 7 mounted to a dam body 2 at one end side, and a fitting part 13d fit in the fitting part 12d between a flange 13c and the rod member 12 at the other end. The flanges 12c, 13c are provided with 3-5 through-holes 12ca, 13ca of bolts 14 for fastening the rod members 12, 13. The bolts 14 are tightened by a torque wrench, the bolts passed to the through-holes 12ca, 13ca of the flanges 12c, 13c of the rod members 12, 13 mounted to the anchor hardware 7 and the block 1a, respectively. As an effect, a predetermined tension can be generated in the clamping hardware efficiently and uniformly.

KUBO TOMOO
SAKAMOTO KOJI
MIYAHARA MICHIHIRO
FUKUDA YOSHIHITO
FUJISAWA TADAHIKO
IWAMURA HIDEYO
TAKADA ETSUHISA
TAKIGUCHI NORIO
AKIYAMA SADAYUKI
FUJINO KENICHI
MIYAMOTO OSAMU
TAKUBO HIROO
NAKAHO KYOICHI
SHINDO TAKUYA

JP2013067080A

October 06, 2014

March 27, 2013

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KYUSHU REGIONAL DEV BUREAU MINISTRY OF LAND INFRASTRUCTURE & TRANSP
JAPAN DAM ENGINEERING CT
KAJIMA CORP
HITACHI SHIPBUILDING ENG CO

E02B7/00; E02D19/04

JP2000064255A	2000-02-29
JPH0650459Y2	1994-12-21

Tetsuya Mizogami
Yoshinori Iwahara
Yamamoto 進

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