Large dredger self-floating anti-blocking mud conveying pipeline system and dredging method

Abstract

The invention discloses a large dredger self-floating anti-blocking mud conveying pipeline system and a dredging method. The large dredger self-floating anti-blocking mud conveying pipeline system comprises a mud conveying steel pipe and spherical floating bodies symmetrically arranged on the two sides of the mud conveying steel pipe, the spherical floating bodies are connected with the mud conveying steel pipe through floating body connecting pieces, each spherical floating body comprises two oppositely-arranged hemispherical floating bodies and connecting flanges arranged at openings of the hemispherical floating bodies, the two sides of the floating body connecting pieces are fixedly connected with the connecting flanges through annular flange pieces, a semicircular groove is formed in the middle of each floating body connecting piece, the mud conveying steel pipe is arranged in the semicircular grooves, the upper portion of the mud conveying steel pipe is fixed to the floating body connecting pieces through strip-shaped hoops, and mud discharging openings are formed in the positions, close to pipe end openings in the two sides, of the mud conveying steel pipe and sealed through plugging cover plates. The system has the advantages that the blockage danger can be rapidly judged according to the pipeline pressure real-time monitoring data obtained wirelessly and remotely, damage to ship machine equipment and a mud conveying pipeline caused by mud conveying blockage can be effectively reduced, and the dredger blowing and filling mud conveying efficiency is greatly improved.

Description

technical field [0001] The invention relates to the technical field of dredging construction, in particular to a large-scale dredger self-floating anti-clogging mud delivery pipeline system and a dredging method. Background technique [0002] With the rapid development of water transportation, in order to maintain the normal operating water depth, the demand for dredging construction in the waters of the port channel is becoming more and more urgent, which promotes the level of dredging construction technology to become higher and higher, and also promotes the type and size of dredging ship equipment to become more and more Big. During the dredging construction process of the port channel, large-scale dredgers often adopt the method of dredging and filling, and use large-diameter dredging pipelines to transport the sediment dredged by the dredgers to designated locations. Considering the convenience of moving and maintenance during the construction process and the reduction...

AI Technical Summary

Problems solved by technology

The results of practical engineering applications over the years have shown that the plastic floating body has low strength, low resistance to water impact, and is extremely easy to loosen and fall off, which will cause uneven buoyancy of the floating tube, which will increase the flow resistance of the mud in the tube; rubber self-floating tube The mud discharge pipe and the floating body are integrated as a whole, with large volume and quality, difficult to hoist and transport, some damaged and scrapped, and poor economic applicability; the integrated floating pipe has poor rigidity and strength, is easily damaged and damaged, and has a long service life. Short, low recycling rate; the cost of the steel box float tube is high, the resistance of the float is large, it is easy to rust and requires daily maintenance

In addition, when large dredgers carry out dredging and filling operations, the dredged soil is often silty cohesive soil, which will increase the resistance of mud transportation and cause pipe plugging

As far as the current technical means are concerned, it is still not possible to predict the danger of pipe plugging and the location of the blockage, and there is no operation method for fast and effective blockage removal, which greatly affects the construction efficiency of large dredgers for dredging and filling mud.

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