Cofferdam equipment applied to diversion canal and assembly method thereof

Abstract

The invention discloses cofferdam equipment applied to a diversion canal and an assembly method thereof. The cofferdam equipment comprises a longitudinal cofferdam, transverse cofferdams, a power boat, anchoring devices and supporting trusses, wherein the longitudinal cofferdam is pressed on a canal bottom lining board; the transverse cofferdams are pressed on a canal slope lining board and are separately connected to the two ends of the longitudinal cofferdam to form a U-shaped cofferdam; the restored board to be lined of the diversion canal is positioned within an envelope range of the U-shaped cofferdam; the two supporting trusses are separately mounted between the two transverse cofferdams; the two or more anchoring devices are fixedly arranged on a canal embankment; each anchoring device is connected to the longitudinal cofferdam or the transverse cofferdams through anchoring chains; and the power boat is positioned at the water side of the longitudinal cofferdam. The longitudinalcofferdam and the transverse cofferdams are assembled on water, are injected with water to sink, are positioned by the anchoring chains, float after water pumping, and are dismounted, so that zero emission of the canal can be realized.

Description

technical field [0001] The invention belongs to the technical field of dry ground repair of channel lining structures, and particularly relates to a cofferdam device applied to a diversion channel and an assembling method thereof. Background technique [0002] The biggest maintenance work of the aqueduct is the maintenance of the lining board of the aqueduct. Due to the lack of compaction during the construction of the channel, the earth will sink when there is infiltration, causing collapse and damage to the lining board. The diversion canal had to stop the water supply completely, remove the damaged lining board, re-repair and reinforce the dike after each period of operation, so as to achieve a good combination with the original dike. [0003] At present, the repair methods of lining structures adopted in my country are mainly divided into water break repair and water delivery repair. [0004] Water cut-off repair not only closes the upstream gate of the repair point, s...

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Problems solved by technology

[0012] In view of this, the present invention provides a cofferdam device and its assembly method applied to the water diversion canal, which can overcome the relatively limited repair ability and scope of the cofferdam form in the prior art, difficulty in adapting to different canal sections, and uneven construction operations. Convenience, complex assembly process, and long assembly time, through the water assembly of vertical cofferdams and horizontal cofferdams, water injection sinking, anchor chain positioning, pumping up and dismantling, zero discharge to the channel can be achieved, and the channel The characteristics of low water pollution

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