Vertical drainage channel pipe used for soft soil ground treatment

A vertical drainage channel and soft soil foundation technology, applied in soil protection, infrastructure engineering, construction, etc., can solve the problems of small water flow, lateral pressure resistance strength and water flow defects, and low lateral pressure resistance strength, etc., to achieve Strong water-through capacity, strong water-permeable effect, and strong lateral pressure resistance

Inactive Publication Date: 2008-03-19
NANJING HYDRAULIC RES INST THE MINISTRY OF WATER RESOURCES THE MINIST
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  • Application Information

AI Technical Summary

Problems solved by technology

The filter cloth is generally made of non-woven fabric or chemical fiber woven fabric that can seep water. Due to the limitation of material properties and structural type, the plastic drainage board is used as a vertical drainage channel. It has defects in lateral pressure resistance and water flow, and the lateral pressure resistance is small. The water flow is also small

Method used

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  • Vertical drainage channel pipe used for soft soil ground treatment

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Embodiment 1

[0013] Embodiment 1, as shown in Figure 2 and Figure 3, the vertical drainage channel pipe used for soft soil foundation treatment, the innermost load-bearing structure is a helical elastic steel wire skeleton 3, and the outside of the skeleton is wrapped with filter cloth 2. The filter cloth is made of water-permeable non-woven fabric, and its inner surface is laid with a layer of reinforcement. The reinforcement is made of plastic material and consists of vertical ribs 4 and horizontal connecting ribs 5, each vertical rib is parallel to each other, and the horizontal connecting ribs connect several vertical ribs into a cylindrical shape. The diameter of the cylinder matches the outer diameter of the helical elastic steel wire skeleton.

[0014] The main technical parameters and test results of the vertical drainage channel pipe used for soft soil foundation treatment according to the present invention are shown in Table 1 and Table 2.

[0015] Table 1

[0016] pro...

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PUM

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Abstract

The present invention discloses a vertical drainage channel tube used for the soft soil foundation management, and the vertical drainage channel tube consists of a spiral flexible steel wire skeleton and filter cloth. The present invention is characterized in that the filter cloth is covered on the outer side of the spiral flexible steel wire skeleton. The present invention has the strong drainage effect and the permeable effect, and integrates the water absorbing, the water penetration and the water drainage into a whole by utilizing the capillary phenomenon and the siphon principle, and the present invention has the pressure capability, the water permeability and the counter filter function which meet the requirements of engineering design. The present invention cannot be cracked because of the geological and the geographical changes, and the effect of clean water drainage can be realized without causing secondary pollution to the environment. The construction is simple, the connector is not required, no special requirements to the geology and the topography exist, and the adaptability is strong.

Description

technical field [0001] The invention relates to a vertical drainage channel pipe used in soft ground treatment. Background technique [0002] Commonly used vertical drainage channels in soft ground treatment include sand wells, bagged sand wells and plastic drainage boards. Sand wells and bagged sand wells are now replaced by plastic drainage boards due to their complex construction process and economic and environmental factors. As shown in Figure 1, the existing plastic drainage board is composed of a core board 1 and a filter cloth 2. A certain number of "U"-shaped grooves are arranged on the core board as a supporting frame and a drainage channel, and the filter cloth is laid on the core board. Above, the filter cloth is permeable and has a filtering effect on soil particles. During foundation treatment, the pressure water enters the core plate through the filter cloth and is discharged along the "u" groove of the core plate. The filter cloth is generally made of non-w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D3/10
Inventor 娄炎关秉洪胡铁权何宁娄斌张希
Owner NANJING HYDRAULIC RES INST THE MINISTRY OF WATER RESOURCES THE MINIST
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