Structure and method for processing consolidation of water pumping and air exhausting soft foundation

Abstract

The invention discloses a structure and a method for processing consolidation of a water pumping and air exhausting soft foundation. The structure comprises weaving cloth, a sand cushion layer, multiple long vertical water discharging plates, multiple horizontal filter pipe branch pipes, multiple horizontal filter pipe main pipes, non-woven geotextile, a sealing film, water-air separators and a vacuum pump, wherein the weaving cloth and the sand cushion layer are sequentially arranged in a soft foundation processing area, the long vertical water discharging plates are inserted into the soft foundation processing area by penetrating through the sand cushion layer and the weaving cloth, the horizontal filter pipe branch pipes and the horizontal filter pipe main pipes which are arranged in parallel are embedded into the sand cushion layer, the non-woven geotextile and the sealing film are sequentially paved on the sand cushion layer, the water-air separators are arranged by diving the soft foundation processing area into pieces, one water-air separator is arranged in each area, multiple areas are equipped with one vacuum pump, water-air inlets of the water-air separators are connected with the horizontal filter pipe main pipes through connecting pipelines, water outlets of the water-air separators are connected with water discharging pipes, and air pumping openings of the water-air separators are connected with the vacuum pump through air pumping pipes. The structure and the method for processing the consolidation of the water pumping and air exhausting soft foundation, disclosed by the invention, have the advantages that consolidation processing of the water pumping and air exhausting soft foundation is realized by utilizing the vacuum pump and the water-air separators, the cost can be reduced, and the consolidation efficiency can be effectively increased.

Description

technical field [0001] The invention relates to a soft foundation treatment technology, in particular to a structure and method for pumping and exhausting soft foundation consolidation treatment. Background technique [0002] Soft foundation treatment technology is widely used in my country's coastal areas and inland areas, especially in some areas where land reclamation is required. First, soft foundation treatment is required, otherwise it will cause great risks and future troubles for later projects. At present, the commonly used methods include cement mixing pile method, crushed stone pile method, vacuum preloading method, displacement method and dynamic compaction method, etc. Among them, the vacuum preloading method is generally used for large-area soft foundation pretreatment projects. Not only has accumulated a large amount of measured data and rich experience, but also has relatively perfect construction technology of vacuum preloading method. The main constructio...

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Problems solved by technology

But this kind of vacuum preloading soft foundation treatment method has the following disadvantages: the first, the efficiency of jet pump is low, only has 30% effect to provide negative pressure field for vacuum preloading in its operation process, so power consumption is serious, wastes Manpower and material resources; second, a jet pump is arranged every 900-1100 square meters, and the equipment cost of construction work is high; third, a large number of jet pumps need to be arranged in the area to be treated, and the distribution of jet pumps and corresponding cables is scattered, which is difficult to control uniformly and management

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