A vertical three-dimensional drainage device for dredging and filling silt reinforcement and its application method

Abstract

The invention discloses a vertical stereoscopic drainage device for sludge blowing and filling type reinforcement and a using method. The vertical stereoscopic drainage device for sludge blowing and filling type reinforcement comprises filter membranes, polyvinyl chloride (PVC) pipes and cross joints. The vertical stereoscopic drainage device for sludge blowing and filling type reinforcement is characterized in that holes are formed in the PVC pipes, the PVC pipes are sleeved with the filter membranes, the corresponding PVC pipes sleeved with the corresponding filter membranes are connected to reach the required design length through upper main connectors and lower main connectors of the cross joints, and left branched connectors and right branched connectors of the cross joints are also connected with the corresponding PVC pipes sleeved with the corresponding filter membranes. The vertical stereoscopic drainage device for sludge blowing and filling type reinforcement and the using method have the advantages that (1) a vacuum load is effectively transmitted into a sludge layer, the drainage distance is further shortened, solidification of a soil body is accelerated, and the construction period is effectively shortened; (2) the way that a drainage plate is erected manually is adopted, a sand cushion does not need to be laid in advance, and particularly in areas lacking of sand sources, the effect of the method is extremely good; and (3) the vertical drainage device can be used repeatedly, and thus the cost is reduced.

Description

Technical field [0001] The invention relates to a vertical three-dimensional drainage device for reinforcement of dredging silt and a use method thereof, belonging to the technical field of dredging silt reinforcement. Background technique [0002] With the rapid development of my country's coastal economy, construction land has become increasingly tense, and the silt caused by clearing of waterways in coastal and riverside areas is often unable to deal with. Based on this, large-area hydraulic reclamation has become an important method to solve the above problems. However, the newly filled silt has the characteristics of high water content (usually up to 200%), large void ratio, and low strength. If it is consolidated under its own weight to form a certain strength, it will take 1 to 2 years. Will seriously affect the construction period, so it must be dealt with. [0003] The commonly used method is vacuum pre-compression. For the treatment of the site after blow-filling, the me...

AI Technical Summary

Problems solved by technology

However, newly dredged silt has the characteristics of high water content (often up to 200%), large void ratio, and low strength. If it is consolidated under self-weight stress to form a certain strength, it will take 1 to 2 years. Will seriously affect the duration, so it must be dealt with

[0003] The commonly used method is vacuum preloading. For the treatment of the site after filling, the method of high-level vacuuming is basically adopted, and the vacuum load cannot be effectively transmitted to the mud layer.

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