Vacuum preloading solidification drainage channel

A technology for drainage channels and drainage pipes, which is applied in basic structure engineering, soil protection, construction, etc., can solve problems such as negative pressure value drop, drainage plate bending deformation, etc., to avoid waste, ensure project progress, and speed up drainage rate Effect

Inactive Publication Date: 2014-08-27
TIANJIN UNIV
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  • Abstract
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Problems solved by technology

[0004] In order to solve the problem of the bending deformation of the drainage board and the rapid decrease of the negative pressure value with the depth in the conventional vacuum preloading consolidation drainage construction process, the present invention provides a vacuum preloading consolidation drainage channel

Method used

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  • Vacuum preloading solidification drainage channel
  • Vacuum preloading solidification drainage channel
  • Vacuum preloading solidification drainage channel

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Embodiment Construction

[0012] The present invention will be described below in conjunction with the accompanying drawings and embodiments.

[0013] The present invention improves the existing vacuum preloading drainage technology, and adopts an iron high-rigidity round pipe as a drainage channel, but it only transmits negative pressure and does not discharge sludge. The water in the silt enters the entire longitudinal drainage channel from the lowermost drainage circular pipe, and is discharged from the soil surface through the drainage channel. During construction, the bottom layer of silt is drained and consolidated first (each layer of silt is 2 meters long). After the consolidation is completed, the drainage channel is pulled up to drain and consolidate the upper layer of silt until all layers of silt are drained and consolidated. until.

[0014] see figure 1 , figure 2 . The vacuum preloaded and consolidated vertical drainage channel used in the present invention is composed of multiple dr...

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Abstract

The invention relates to a vacuum preloading solidification drainage channel which comprises one or more upper drainage pipelines (1) and a lower drainage pipeline (2). The adjacent upper drainage pipelines (1) are connected in a sealed mode, the upper drainage pipelines (1) and the lower drainage pipeline (2) are connected in a sealed mode, and holes used for drawing water are formed in the lower drainage pipeline. The drainage channel is used in vacuum preloading solidification drainage construction, it can be guaranteed that large horizontal bending deformation cannot happen to the drainage channel, and drainage solidification can be carried out successfully and effectively.

Description

Technical field [0001] The invention belongs to the technical field of vacuum preloading consolidation drainage, and relates to a vacuum preloading consolidation drainage facility. Background technique [0002] The vacuum preloading method is to lay a sand cushion on the surface of the soft ground that needs to be reinforced, then bury the vertical drainage pipe (drainage board), and then use an airtight sealing film to isolate it from the atmosphere. The suction pipe buried in the cushion is pumped by a vacuum device to form a vacuum. At this time, the pore water in the muddy soft soil will seep due to the pressure difference generated, and the water will be discharged from the drainage pipe. As the water content decreases, the effective stress of the foundation increases, and the silty soil will consolidate. [0003] At present, the conventional drainage board is composed of a plastic core board and a filter membrane jacket. Although the application of this conventional ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D3/10
Inventor 雷华阳卢海滨仇王维贺彩峰李宾
Owner TIANJIN UNIV
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