Cofferdam bottom seal for uneven lining panels

By installing a water-stopping device consisting of support components, water-stopping rubber, and adjusting water bladders at the bottom of the cofferdam, the problem of poor water-stopping effect on uneven lining plates was solved, achieving a stable dry construction environment. The structure is simple and highly adaptable.

CN224325802UActive Publication Date: 2026-06-05南水北调中线实业发展有限公司 +1

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
南水北调中线实业发展有限公司
Filing Date
2025-05-09
Publication Date
2026-06-05

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Abstract

The utility model discloses a cofferdam bottom water stop device suitable for uneven lining board, including support piece, the top of support piece is connected with cofferdam, and the bottom of support piece is provided with water stop rubber, the outside of water stop rubber is provided with limit bush, be provided with the adjusting water sac between limit bush and water stop rubber. The utility model discloses clever structure, easy to manufacture, convenient to use, when cofferdam is in position, fills water in adjusting water sac, and adjusting water sac deforms according to the recessed / protruding condition of lining board, and the water stop effect of rubber water stop is compensated, makes limit bush bottom and canal slope lining board always keep sealed contact, thereby ensures that cofferdam forms dry land construction environment, solved the water stop difficult problem of ordinary cofferdam when operating on uneven lining board.
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