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Vacuum preloading treatment system and process

A processing system and preloading technology, which is applied in infrastructure engineering, soil protection, construction, etc., can solve the problem of low soil permeability and achieve the effects of reducing the time of vacuuming, ensuring permeability, and ensuring vacuum degree

Pending Publication Date: 2020-12-29
FUJIAN BAICHUAN CONSTR DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In the first aspect, in order to improve the problem of low soil permeability, the application provides a vacuum preloading treatment system, which adopts the following technical solutions:

Method used

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  • Vacuum preloading treatment system and process
  • Vacuum preloading treatment system and process
  • Vacuum preloading treatment system and process

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Effect test

Embodiment 1

[0044] The embodiment of the present application discloses a vacuum pre-pressing treatment system. refer to figure 1, the vacuum preloading treatment system includes a drainage assembly 1, a micro-splitting assembly 2, a sealing assembly 3, and vibration equipment (not shown in the figure), the drainage system is used to vacuum the foundation to achieve the effect of drainage, and the micro-splitting The cracking system is used to split the foundation soil to achieve the effect of improving the soil permeability, the sealing component 3 is used to seal the surface of the foundation to ensure the vacuum effect of the drainage component 1, and the vibration equipment is used to clean the foundation Densification is performed to speed up the consolidation efficiency of the foundation; among them, in this technical solution, the vibratory equipment adopts a vibratory road roller.

[0045] Among them, before installing the vacuum components, bulldozers were used to push away the s...

Embodiment 2

[0059] refer to Figure 7 , The difference between this embodiment and Embodiment 1 is that the drainage assembly 1 includes a vertical drainage board 11, a horizontal water suction pipeline 12, a horizontal gas delivery pipeline 14, a vacuum device 13 and a second air compressor 15, and the vacuum device 13 It communicates with the horizontal water suction pipeline 12, and the second air compressor 15 communicates with the horizontal gas delivery pipeline 14.

[0060] Among them, refer to Figure 8 , the vertical drainage plate 11 includes a main body 115, a drain pipe 116, an air supply pipe 117 and a plurality of rectangular plate frames 113, the main body 115 is used to connect the drain pipe 116, the air supply pipe 117 and each rectangular plate frame 113, and the rectangular plate frame 113 is used for Drainage chambers 1133 are formed in the main body 115 . Drainage pipes 116 are used to communicate each drainage chamber 1133 with the horizontal water suction pipe 12 ...

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Abstract

The invention relates to a vacuum preloading treatment system, and relates to the field of foundation negative pressure hardening technologies. The vacuum preloading treatment system comprises a plurality of vertical drainage plates, a horizontal water suction pipeline, a vacuumizing device and a sealing film, wherein the vertical drainage plates are vertically buried in a foundation, the horizontal water suction pipeline is pre-buried in a sand cushion layer and communicates with the upper ends of the vertical drainage plates, the vacuumizing device communicates with the horizontal water suction pipeline, and the sealing film covers the ground. The vacuum preloading treatment system further comprises a first air compressor, an air supply pipe and a plurality of air injection pipes, wherein the air supply pipe is horizontally buried in the sand cushion layer, the air injection pipes are vertically buried in the foundation, the air injection pipes communicate with the air supply pipe, and the first air compressor communicates with the air supply pipe. The vacuum preloading treatment system has the effect of improving the too low permeability of soil.

Description

technical field [0001] The present application relates to the field of foundation negative pressure compaction technology, in particular to a vacuum preloading method. Background technique [0002] Vacuum preloading is to evacuate under the sealing film covering the ground, so that the air pressure difference between the inside and outside of the film is formed, and the clay layer generates consolidation pressure. That is, under the condition of constant total stress, the effective stress is increased by reducing the pore water pressure. Vacuum preloading and dewatering preloading are drainage consolidation under negative superhydrostatic pressure, which is called negative pressure consolidation. The negative pressure effect of vacuum preloading is mainly reflected in the following aspects: 1) The film bears a load equal to the pressure difference between the inside and outside of the film; 2) The groundwater level decreases, and the additional stress increases accordingly;...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D3/10E02D3/046E02D3/02
CPCE02D3/10E02D3/046E02D3/02
Inventor 陈耀全巫瑞鹏崔泽军陈文先
Owner FUJIAN BAICHUAN CONSTR DEV
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