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Self-seal vacuum pre-press reinforcing foundation technical method

A self-sealing, foundation technology, used in infrastructure engineering, soil protection, construction, etc., can solve problems such as a large number of labor

Inactive Publication Date: 2009-01-21
TIANJIN PORT ENG INST LTD OF CCCC FIRST HARBOR ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Moreover, when such a large-area sealing film is laid on site, a large amount of labor (dozens or even hundreds of people) is required at one time.

Method used

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  • Self-seal vacuum pre-press reinforcing foundation technical method
  • Self-seal vacuum pre-press reinforcing foundation technical method
  • Self-seal vacuum pre-press reinforcing foundation technical method

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Embodiment Construction

[0023] A self-sealing vacuum preloading method for foundation reinforcement, using a self-sealing device (as shown in Figures 1, 2, and 3) wrapped or bonded on the top of the drainage board and connected to the suction and drainage connecting pipe system to discharge the water in the soft soil foundation. Pore ​​water is used to strengthen the foundation, and the self-sealing device of the drainage board is arranged and driven into the foundation in the foundation that needs drainage reinforcement (such as Figure 4 ), and connect the self-sealing device of the drainage plate and the suction and drainage connection pipe system to the vacuum pump. (like Figure 5 )

[0024] Drain boards and their self-sealing devices are driven into the foundation in a matrix arrangement, and the suction and drainage connecting pipe system is connected. The vacuum pump is connected to the main pipe of the system, and the main pipe is connected to several parallel branch pipes, and multiple con...

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Abstract

The invention relates to a technical method for reinforcing foundation by self-sealing and vacuum prepressing, which adopts a mode of mounting a drainage plate self-sealing device and connecting an air suction and drainage connecting pipe system to discharge pore water in soft soil foundation for reinforcing the foundation; drainage plates and the drainage plate self-sealing device are driven into the foundation needing drainage and reinforcement in rank; and the drainage plate self-sealing device is connected to the air suction and drainage connecting pipe system and then a vacuum pump. The drainage plates and the drainage plate self-sealing device are arrayed according to a matrix and driven to the foundation; the vacuum pump is connected with a main pipe of the air suction and drainage connecting pipe system; the main pipe is connected with a plurality of rows of parallel branched pipes; two sides of the branched pipes are connected with a plurality of connecting branched pipes which are connected with a water and air suction pipe of the air suction and drainage plate self-sealing device. The method saves a plastic sealed film for reinforcing the ground surface, a horizontal drainage undercourse, total filter pipes, a film outgoing device and a film pressing sealed ditch in the common vacuum prepressing, simplifies the construction procedure, has convenient and rapid construction, shortens the construction period, saves mass engineering material, manpower and engineering investment.

Description

technical field [0001] The invention belongs to a foundation reinforcement method of the foundation soil reinforcement technology of civil engineering. In particular, it relates to a technical method for self-sealing vacuum preloading reinforcement foundation. Background technique [0002] The method of vacuum preloading to strengthen soft soil foundation was started by our institute in 1980, and it was listed as a national "Sixth Five-Year" scientific and technological project in 1983. Scientific and technological research excellence award, the first prize of national scientific and technological achievements. Today, this law has been widely and massively applied not only in the water transportation industry, but also in the national infrastructure industry, and has been included in several ministerial-level foundation regulations. Some foreign scholars often come to China to understand the situation of vacuum preloading and visit the site. [0003] When vacuum preloadin...

Claims

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Application Information

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IPC IPC(8): E02D3/10
Inventor 苗中海刘爱民王良臣高志义阚卫明曹永华冯军
Owner TIANJIN PORT ENG INST LTD OF CCCC FIRST HARBOR ENG
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