Rapid consolidation device and construction method of dredger fill soil

Abstract

The invention discloses a quick dredger fill consolidation device. The quick dredger fill consolidation device is composed of at least one well point pipe, a transverse drainage pipe, a transverse air compression pipe, a vacuum pump and an air compressor. The well point pipe is composed of an inner pipe and an outer pipe which are arranged in a coaxial mode. The top of the inner pipe is connected with the air compressor through the transverse air compression pipe, and the top of the outer pipe is connected with the vacuum pump through the transverse drainage pipe. The inner pipe is provided with a cross-shaped hole, and the outer pipe is provided with a quincunx small hole. One end of a small pipe is welded to the cross-shaped hole, the other end of the small pipe penetrates the small hole, and the outer wall of the other end of the small pipe is welded to the small hole in a sealing mode. The quick dredger fill consolidation device is combined with the light well point dewatering characteristics, the double-pipe structure of the well-point drainage pipe is adopted, silt, floury soil and mud soil which are in a fluidal plastic state are subjected to quick consolidation, the consolidation time is shortened to 2-3 months from one year, and the consolidation time is greatly shortened; and meanwhile, the quick dredger fill consolidation device replaces the water filtering procedure of a plastic drainage plate, resource wasting and secondary environment pollution caused by the plastic drainage plate are avoided, recycling is achieved indeed, and benefits are brought to the nation and the people.

Description

technical field [0001] The invention belongs to the field of dredging and reclamation engineering, and in particular relates to a rapid consolidation device and construction method for dredging fill. Background technique [0002] In recent years, as the demand for construction land in our country has increased year by year, land reclamation and sand blowing have been common in coastal areas. Especially in recent years, Zhejiang has carried out large-scale "sewage treatment" work. People use rivers, lakes, and harbor basins to The dredged mud in the soil is used as dredging and filling material for land reclamation, achieving the purpose of dredging, dredging and land reclamation at the same time. [0003] Reclamation and land reclamation projects generally fill the low-lying areas with the silt from dredging port channels, and then carry out reinforcement treatment to form land areas. When the dredger fill construction is just completed, the dredger fill sludge generally ha...

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Problems solved by technology

[0005] In order to overcome the deficiencies in the prior art that the dredging fill takes a long time, cannot be quickly consolidated in a short period of time, the bearing capacity is not high, and the problem of post-construction settlement is more prominent, the present invention provides a rapid consolidation of dredger fill. The device and construction method, the device combines the characteristics of light well point dewatering, adopts the double pipe structure of the well point drainage pipe, the outer pipe pumps water and drains water, and the inner pipe pressurizes, so that the effective water can be quickly separated until it can quickly drain water in a short period of time and accelerate soil drainage. The purpose of solidification is to achieve the purpose of rapid consolidation of dredged fill within 2-3 months. It has strong operability and greatly shortens the time for sediment consolidation and the foundation treatment period. Subsequent construction wins precious time and produces higher economic benefits

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