Rapid solidification system and method of operation of dredger fill soil for offshore land reclamation

Abstract

The invention discloses a fast curing system used for dredger fill of offshore reclamation and an operation method of the fast curing system. The fast curing system comprises cathodes, anodes, plastic rigid main drain pipes, vacuum pumps, rectifiers, oscillators and the like. Alternating currents are converted into direct currents through the rectifiers. According to the fast curing system, curing of the dredger fill is enhanced through a combined process of vacuum negative pressure suction filtration drainage and electroosmosis reinforcement drainage, so that the curing effect of the dredger fill is improved. In the later period of vacuum-electroosmosis curing, grouting is conducted in generated cracks manually, thus the soil cracks are filled. Meanwhile, to-and-fro oscillation is conducted through an oscillation method, stress unevenness on the dredger fill is reduced, the number of the cracks generated in the base face of the dredger fill is reduced, the crack generation scale is reduced, and thus the curing effect of vacuum electroosmosis of the dredger fill is further improved. Through the combined process, the effect of reinforcement of dredger fill curing is achieved. Meanwhile, the fast curing system is simple in structure, the curing period is short, and through the process, curing of the dredger fill is achieved fast.

Description

technical field [0001] The invention relates to a method for solidifying dredger fill soil for sea reclamation and land reclamation, in particular to a rapid solidification system and operation method for dredge fill soil used for offshore land reclamation. Background technique [0002] Coastal areas such as the Yangtze River Delta, the Pearl River Delta, and the coastal economic belt have experienced rapid economic growth, but land resources are limited, and a large amount of land resources are needed in the process of economic development. Land reclamation projects have become a way to solve the shortage of land resources in coastal areas. The most ideal dredger filling material for land reclamation is medium-coarse sand. However, due to the shortage of sand sources in many coastal areas, if medium-coarse sand is used in a large area during land reclamation, it will bring a huge economic burden. Soil, as a kind of fluidized soft clay, is blown and filled by pumps to form l...

AI Technical Summary

Problems solved by technology

The treatment effect of the dynamic compaction method is good, but the foundation needs to have a certain bearing capacity during the treatment process so that the large-scale compaction equipment can work; the vacuum preloading method has the disadvantages of uneven curing effect on the surface of the foundation, and at the same time has the disadvantages of long curing period and cracking in the later stage of curing; Vacuum electroosmosis, as a deep dehydration technology, has good curing effect and wide application range, but has the disadvantage of long curing cycle

These curing technologies require the assistance of large-scale equipment, and the construction difficulty and strength are very high. Not only do they have high requirements for the bearing capacity of the site, but they also have the characteristics of high project investment funds, long curing cycles, and large variations in curing effects depending on the site.

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