Rapid overhauling method for water conveyance canal without water supply shutdown
A channel and fast technology, applied in the field of rapid maintenance of water delivery channels, can solve the problems of high construction cost, unsatisfactory surface flatness, low construction efficiency, etc., and achieve high construction efficiency, low cost and effective efficiency improvement. Effect
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Embodiment 1
[0028] Embodiment 1, a method for rapid maintenance of water delivery channels without stopping water, comprising the following steps:
[0029] S1, Demolition of the original structure: remove the damaged lining board in the water delivery channel, and level the area where the damaged lining board is removed; the lining board below the water surface shall be dismantled underwater by divers carrying a helmet equipped with a camera, and the lining board shall be removed with a slope The expansion joints set on the surface are the dividing line, and the demolition is carried out in a regular and orderly manner. Remove the entire lining board and ensure that the shape of the removed area is a relatively regular rectangle, in preparation for the hoisting of the mold bag skeleton.
[0030] S2, area division: divide the areas described in step S1, and divide them sequentially from upstream to downstream according to the direction of water flow, and perform repairs in order.
[0031]...
Embodiment 2
[0039] Embodiment 2, a method for rapid maintenance of a water delivery channel without stopping the water, when performing step S6 for hoisting and launching and step S7 for filling concrete, tighten the chain block and the sling of the crane, check and adjust the position of the mold bag, Make sure that the skeleton of the mold bag is perpendicular to the axis of the water delivery channel.
[0040] Other steps in this embodiment are the same as in Embodiment 1.
Embodiment 3
[0041]Embodiment 3, a method for rapid overhaul of a water delivery channel without stopping water. When performing step S6 for hoisting and launching and step S7 for filling concrete, the direction of the left and right banks of the water delivery channel is adjusted by the boom of the crane to adjust the position of the mold bag skeleton. In the upstream and downstream directions, hoists are used to adjust the position of the mold bag skeleton, and at the same time, divers control the distance between the bottom position of the mold bag skeleton and the undamaged lining board by measuring tools to be 30cm.
[0042] Other steps in this embodiment are the same as those in Embodiment 1 or 2.
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