Title:
仮締切構造体の施工方法
Document Type and Number:
Japanese Patent JP7426051
Kind Code:
B2
Abstract:
To provide a construction method for a cofferdam structure that enables prevention of a water leak with simple work.SOLUTION: A construction method for a cofferdam structure includes: a construction process of constructing a cofferdam structure body 7a around a bridge pier 10; and a covering process of covering an outside surface 7c of the cofferdam structure body 7a with a waterproof cover 7b. The construction process includes stacking assembling intermediate bodies 70, 70A using a float platform FP1 until the cofferdam structure body 7a has a desired height. The covering process includes: attaching a lower part 78b of a waterproof sheet 78 constituting the waterproof cover 7b along the circumferential direction of a lower part of the cofferdam structure body 7a; temporarily fixing an upper part of the waterproof sheet 78 to a temporary fixation part 70b provided on the lower part of the cofferdam structure body 7a in a state in which a waterproof fastener 79 for bonding sheet ends 78d of the waterproof sheet 78 is opened; releasing temporary fixation of the upper part 78e of the waterproof sheet 78, under water; and bonding a joint 78a upward while closing the waterproof fastener 79.SELECTED DRAWING: Figure 25
Inventors:
Ichiro Asai
Application Number:
JP2020007940A
Publication Date:
February 01, 2024
Filing Date:
January 21, 2020
Export Citation:
Assignee:
Azai Technology Consultant Co., Ltd.
International Classes:
E02D19/04
Domestic Patent References:
| JP2011069183A | ||||
| JP2007239244A | ||||
| JP2017089134A | ||||
| JP2017071993A | ||||
| JP6351776B1 | ||||
| JP10168890A | ||||
| JP3093921A | ||||
| JP6033465A |
Foreign References:
| US20100067986 |
Attorney, Agent or Firm:
Masashi Koike