Channel improvement construction method

Abstract

The invention discloses a channel improvement construction method, and relates to the engineering construction technology. The problem that due to common channel improvement construction, the water depth of a channel is increased, and the channel danger is increased is solved. The method comprises the following steps of cofferdam construction, wherein in the length direction of a channel, waterproof cofferdams are sequentially arranged in the length direction of a channel to segment the channel; channel dredging, wherein starting from the upstream of the channel, water and sludge in a dredgingsegment are sequentially discharged into the next dredging segment, and after sludge is cleaned, a river bed needs to be backfilled and reinforced; and channel recovering, wherein after the channel is cleaned and improved, the cofferdams are dismounted, and river water flowing is recovered. The method has the advantages that backfilling and reinforcing after dredging can recover the depth, descending due to dredging, of the channel, the channel can keep safe depth, through renovation, the river bed is more flat in topography, after a person falls in water, the person cannot be tangled by theriver bed complex topography easily, and the construction method can reduce danger of the channel.

Description

technical field [0001] The invention relates to engineering construction technology, in particular to a construction method for river regulation. Background technique [0002] During the construction process of modern cities, urban rivers are generally built as supporting facilities. On the one hand, these rivers are an important part of the urban landscape, and on the other hand, they are also important supporting factors for the urban ecosystem. The existence of river channels plays a role in providing water sources, transportation, flood control and drainage, regulating climate and purifying the environment for cities. [0003] However, human production and life will always produce some garbage, which will pollute the river after entering the river, causing river blockage, water odor, etc. In this case, it is necessary to remediate the river. [0004] At present, most of the river channel improvement construction schemes are generally dredging the river channel, and the ...

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Problems solved by technology

[0003] However, due to human production and life, there will always be some garbage, which will pollute the river after entering the river, causing river blockage, water odor, etc. In this case, it is necessary to remediate the river

[0004] At present, most of the river channel improvement construction schemes are generally dredging the river channel, and the dredging measures generally only use excavators to dig out the silt in the channel, but river channel pollution is a periodic problem. In production and life, there will always be some domestic garbage, which will more or less enter the river again, causing the river to silt again, and then carry out periodic dredging work, which causes the depth of the river to change with the number of dredging times. If the river is too deep, once someone falls into the water, the possibility of causing a safety accident will increase greatly. Therefore, this improvement plan has potential safety hazards.

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