Floatation type reservoir dredging method

Abstract

The invention relates to a floating-type reservoir dredging method, which mainly comprises the following steps of directly or indirectly connecting a towboat with a mud pump device and driving the mud pump device to pump mud, connecting the towboat or the mud pump device with a filter bed device for filtering operation, thus pumping, concentrating and drying mud in a reservoir. The device can be towed by the towboat to execute elastic adjustment, thus achieving integrally linked and mobile floating-type dredging construction on water surface.

Description

technical field [0001] The invention relates to a dredging method for a floating reservoir, in particular to an operation method for dredging reservoir silt. Background technique [0002] Reservoirs can be used for a wide range of purposes, such as: irrigation, power generation, flood control (regulating water storage), supply of industrial water and tap water, and even sightseeing. Regardless of whether it is natural or artificial, and regardless of whether it is on the ground or under the ground, the reservoir can basically have a barrage, and can relatively define a water storage space (a more scientific and systematic standard is a height or depth of three meters. The water storage capacity exceeds 20,000 cubic meters). Especially in areas where the rivers are fast and fleeting, and water storage is difficult, such as Taiwan, China or many small islands, or countries and regions with severe drought. Reservoirs are all important water conservancy construction facilities...

AI Technical Summary

Problems solved by technology

[0006] 1. The reservoir has a vast area, and the dredger is limited by the pipeline, so it is not easy to move

[0007] 2. The dragging of the pipeline affects the waterway, and it is easy to affect the operation or navigation of other ships (such as engineering ships, sightseeing yachts)

[0008] 3. It is not easy to obtain the land for the sedimentation tank and the drying bed or dehydration machine room for processing wet mud

Especially for example, most of the reservoirs in Taiwan, China are man-made reservoirs, with steep mountain walls and slopes on both sides, and there is not enough area for on-shore drying beds or dehydration machine rooms

Moreover, the extracted sludge requires a lot of land for sedimentation and dehydration, and the treatment cost is high

[0009] 4. Due to the high content of mud (sand) in water-containing slurry, the filtrate that is not completely filtered will easily affect the downstream water quality or the smoothness of other drainage pipes

[0010] 5. The water-containing slurry (slurry) is easy to cause damage to the filter due to the large mud (sand) content, so it is not suitable for mechanical dehydration

[0011] 6. Due to seasonal effects, when the water level drops in the dry season, the dredger and the pipeline will affect the transportation of mud

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