A river chain bucket dredging ship and its dredging construction method

Abstract

The invention mainly discloses a riverway chain bucket type dredging ship and a dredging construction method thereof. According to the technical scheme, the riverway chain bucket type dredging ship comprises a ship body, a control chamber, a retiring room, a support, at least two chain bucket conveying mechanisms and a sludge collecting bin. A lifting mechanism is arranged between each chain bucket conveying mechanism and the support. Moving devices and salvage devices connected with the moving devices are arranged on the two sides of the ship body, and a salvage basket and a power paddle are arranged on the rear side of the ship body. The method comprises the first step of construction preparation, the second step of chain bucket type dredging ship position adjustment, the third step of chain bucket conveying mechanism descending position control, the fourth step of dredging work conduction, the fifth step of sludge treatment work and the sixth step of subsequent work. By means of the method, sludge at the river bottom can be efficiently removed, objects floating on the river surface can be removed as well, suspension pollutants brought from the sludge during salvage work are eliminated, and a riverway is dredged; and the flood discharge capacity of the riverway is improved, the water quality is improved, and water pollution is reduced.

Description

technical field [0001] The invention relates to a chain-bucket dredging ship for a river course and a dredging construction method thereof. Background technique [0002] Severe siltation of the river channel leads to poor discharge, which will cause floods to directly hit the river embankment, seriously threatening the lives and property safety of local residents. The smoothness of the river directly affects the flood discharge and flood control function of the river, especially in the annual flood season, which has higher requirements for the smoothness of the river. People realize that it is urgent to dredge the river course. However, due to the factors of the river itself, the buildings on both banks and the erection of bridges, it is very difficult to dredge the river; the cleaned silt cannot be effectively discharged and utilized. Different river courses adopt different dredging methods according to the channel distribution and soil conditions, so as to carry out the ...

AI Technical Summary

Problems solved by technology

The dredging and dredging operation of dredger with chain bucket consists of dredger, supporting ship and dredging ship. There is a T-shaped connection between the dredging ship and the supporting ship, and a T-shaped connection between the supporting ship and the dredging ship. , due to the triangular connection mode of the hull, it is impossible to dredge near the river bank. The supporting device mechanism of the hull is huge, and the turning space is also large, so it is inconvenient to move. There is only one chain bucket mechanism, and the dredging efficiency is low. The soil below is heaped and uneven, and the soil contains large particles, and during the dredging process, the suspended solids in the silt will float from the soil to the water, causing turbidity and pollution of the water surface, forming secondary pollution

In the operation of cutter suction dredgers and trailing suction dredgers, the suction port and pump of dredgers are often blocked, and it cannot be cleaned at the place where the slope is lined. Due to the limitation of the height of the river, the dredging efficiency is not high

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