Novel vacuum preloading soft foundation combined stacking system and construction method thereof

Abstract

The invention relates to a novel vacuum preloading soft foundation combined stacking system. The novel vacuum preloading soft foundation combined stacking system comprises a soft foundation, plastic drainage plates, water absorbing pipelines, sand cushions, geotechnical cloth, a sealing membrane and sealing water bags. A plurality of the plastic drainage plates are inserted into the soft foundation; the sand cushions are tiled on the ground surface of the soft foundation; the water absorbing pipelines are embedded into the sand cushions; the sand cushions are covered with the geotechnical cloth; the sealing membrane is paved on the upper surface of the geotechnical cloth; and the sealing water bags which are filled with water are stacked on the upper part of the sealing membrane in a combined manner. A first construction method of the novel vacuum preloading soft foundation combined stacking system comprises the following steps: stacking the plurality of the sealing water bags on the upper part of the sealing membrane in sequence, and injecting water into the water bags through pipelines to form pre-load pressure on the upper part of the soft foundation; a second construction method comprises the following steps: stacking the plurality of the sealing water bags on the periphery of a set range of the ground surface of the soft foundation, injecting the water into the water bagsto form a cofferdam through the pipelines, and then feeding the water into the cofferdam to form the pre-load pressure on the upper part of the ground surface of the soft foundation. The water is directly discharged after a project is ended; and the sealing water bags can be reused. The construction method disclosed by the invention is simple in method and is low in project cost.

Description

technical field The invention relates to the technical field of soft foundation treatment, in particular to a new vacuum preloading system and a construction method thereof for realizing soft foundation consolidation and settlement with a water-filled container combined with surcharged soft foundation on the soft foundation. Background technique In civil engineering, whether it is a port, an airport building, or a railway or highway, it is necessary to carry out drainage treatment on the soft foundation in the early stage of construction, to drain the water in the underground soft soil layer, lower the groundwater level, and prevent future underground settlement. question. The well-known vacuum drainage preloading method is the most commonly used traditional reinforcement method in soft foundation reinforcement engineering. A number of plastic drainage boards are inserted into the saturated viscous soft foundation such as silt, silty soil, and flushing soil at a distance of...

AI Technical Summary

Problems solved by technology

Aiming at the technical deficiencies of the traditional vacuum drainage preloading method combined surcharge system, the present invention provides a new vacuum preloaded soft foundation combined surcharge system and its construction method to solve the preloading problems in the traditional preloaded soft foundation combined surcharge system. Difficulty in material transportation and stacking, cleaning and transportation

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