Maintenance method without water supply shutdown for large channel

Abstract

The invention discloses a maintenance method without water supply shutdown for a large channel. The maintenance method comprises the steps of (1) manufacturing a maintenance bin which comprises a longitudinal steel beam extending from a channel slope to the bottom of the channel, wherein a door-shaped frame is connected to the longitudinal steel beam, a rubber gasket is arranged on a base on the outer side of the door-shaped frame, a water retaining steel plate is welded to the longitudinal steel beam and the inner side of the door-shaped frame, and a water sealing film bag is arranged at thebottom of the water retaining steel plate; (2) lifting the maintenance bin to the to-be-maintained area of the channel, and enabling the top opening to locate above the water level of the channel; (3)filling the water sealing film bag with water; (4) fully draining water in the bin; (5) entering the bin for maintenance by maintenance personnel; (6) filling the maintenance bin with water, discharging water from the water sealing film bag, and lifting the maintenance bin so as to complete the maintenance of the to-be-maintained area; and (7) maintaining other areas. The maintenance method has the advantages of safety and reliability, the actual engineering condition of the long large channel can be met, all aspects of influence caused by water supply shutdown is avoided, and economic benefits and social benefits are increased.

Description

technical field [0001] The invention relates to the technical field of canal maintenance, in particular to a non-stop maintenance method for large-scale canals. Background technique [0002] With the rapid development of water diversion projects, more and more large-scale channels undertake important water transfer tasks. After a long time of water erosion, the channel concrete panel will be damaged to varying degrees, and it needs to be repaired. The current general canal maintenance method requires the entire section of the canal to be shut off when it is implemented. However, for such large-scale canal projects, once the water supply is stopped, it will often cause huge social and economic impacts. Obviously, the existing canal maintenance method is not suitable for this Class large-scale channel engineering. Therefore, how to carry out overhaul to large-scale channel when not stopping water supply, has become the technical problem urgently in need of solving at present...

AI Technical Summary

Problems solved by technology

The current general canal maintenance method needs to stop the water at the whole section of the canal. However, for such large-scale canal projects, once the water supply is stopped, it will often cause huge social and economic impacts. Obviously, the existing canal maintenance methods are not suitable for this kind of project. Class large channel engineering

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