Suction dredge pipeline reducing construction method

Abstract

The invention relates to a suction dredge pipeline reducing construction method, and belongs to the technical field of dredging engineering. In the suction dredge pipeline reducing construction method, suction dredging construction is performed on a dredge by adopting a pump and a pipeline. The method is characterized in that: when the pump and the pipeline are used for the suction dredging construction, the properties of the dredge pump are adapted by adopting a pipeline reducing mode, and the construction working conditions matched with the dredge are achieved. The method has the advantages that: a suction dredge conveying system is reasonably matched, the flow or the flow rate is increased, the yield can be remarkably improved, the oil consumption can be reduced, the effect of saving energy and reducing emission is remarkable, the utilization rate of construction equipment is high, the utilization rate of time is high, the project schedule is advanced, a large amount of manpower and material costs are saved, and the benefits of social economy, environmental friendliness, energy conservation and emission reduction are remarkable.

Description

technical field [0001] The invention belongs to the technical field of dredging engineering, in particular to a construction method for reducing the diameter of a cutter suction dredger pipeline. Background technique [0002] At present, the cutter suction dredger has the characteristics of continuous operation, high production efficiency and low construction cost. During the construction process of the cutter suction ship, the matching of the pump, pipeline and pump determines the working conditions of the construction. Under normal circumstances, each cutter suction ship is equipped with a certain discharge pipe diameter. Since the soil conditions cannot be changed, the adjustment of the conveying conditions is mostly achieved by changing the pump speed, the number of pumps in series, changing the impeller, controlling the concentration, and adding and shrinking the pipe head. The above methods are very simple and convenient to operate, but they all have great limitation...

AI Technical Summary

Problems solved by technology

The above methods are very simple and convenient to operate, but they all have great limitations. The change of pump performance can only work within a certain range, and it is impossible to have a large change in power and fuel consumption under the same flow rate; high-concentration construction is difficult to control. It is not advisable to reduce the concentration of dredging construction; the method of adding and shrinking can change the characteristics of the pipeline, but it will only increase the resistance of the pipeline and increase fuel consumption, which is not conducive to energy saving and emission reduction

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