KR20020027440A - Drain Method with Vacuum Pressure Using the Geotextile-Ceramic Solid Admixture Composite - Google Patents

Abstract

PURPOSE: Provided is a vacuum consolidation process to solve common problems such as reclaiming earth and sand and expensive sealing sheets by replacing the known materials with a specified solid soil-geotextile composite. CONSTITUTION: The process comprises using a solid soil(4)-geotextile(5) composite(1) as a reclaiming earth and sand, a sealing sheet and/or a drainage passway. The composite is useable as a landfill layer to surface of a soft ground without a surface reclaiming layer in case of a vacuum consolidation process. The composite is also effective for air-tightening during the consolidation process as a sealing sheet. The composite has improvements of intensity and air-tightening property sufficient to work on the soft ground.

Description

Drain Method with Vacuum Pressure Using the Geotextile-Ceramic Solid Admixture Composite}

The present invention is a soft ground vacuum that can reduce the construction period and reduce the construction cost by using a high-fiber soil-geotextile composite (1) for laying the airtight sheet and surface buried layer used in the application of vacuum consolidation method for soft ground treatment It is a consolidation method.

Generally, various consolidation methods are used to install facilities on the ground of dredged soft ground. In particular, the vacuum consolidation method is a very advantageous method in the area where there is not much soil due to the use of atmospheric pressure as a method to apply the soft ground, there is no need for earth soil for the fill load or large soft ground treatment. In addition, the vacuum consolidation method has the advantage that it can be consistently consolidated to a considerable depth.

However, the method currently used also has to install a buried layer of about 1 m on the soft ground for the installation of vertical drainage (2), etc. because of the necessity of the operation of the equipment on the soft ground, and then also to install the airtight sheet so that the vacuum pressure is sufficiently applied. In the case of treating a large amount of soft ground, a considerable amount of soil is required. In the present situation where environmental destruction is an important problem, securing of soil is becoming a difficult problem. In addition, since the airtight sheet, which plays a key role in the vacuum consolidation method, is very expensive, it is difficult to apply the vacuum consolidation method to soft ground works.

On the other hand, the vacuum consolidation method in which the vertical drainage penetrates the airtight sheet and connects the vacuum pump to the pipe to apply a vacuum pressure requires a large amount of perforation to the airtight sheet when applied to a large site. There are accompanying drawbacks.

Therefore, the vacuum consolidation method needs to solve the problem of the earth and sand of the buried layer and the expensive airtight sheet.

The present invention is to solve the above problems, by combining a high-strength and high-grade soils and geotextiles with a high drainage capacity, to solve the problem of surface buried layer construction, installation of the airtight sheet and drainage at the same time.

1 is a schematic diagram of a vacuum consolidation method using a solidified soil-geotextile composite according to the present invention

Figure 2 is a block diagram of a gohwa earth-geotextile composite according to the present invention

<Explanation of Drawing Symbols>

1. Gohwa-Geotextile Composite 2. Vertical Drainage

3. vacuum pump 4. solidified soil

5. Geotextile

The present invention, in order to apply the vacuum consolidation method to the soft ground, directly install the solidified soil-geotextile composite (1) without laying the surface buried layer on the soft ground, the equipment can work directly, the solidified soil-geotextile composite ( 1) It serves as an airtight seat, and the vacuum pump and the geotextile are connected to serve as a drain. The construction sequence according to the present invention is as follows. After installing the Gohwa-Geotextile complex (1) on the soft ground and the equipment enters immediately and installs the vertical drainage (2), the top is sealed with the goats to maintain airtightness. After the process of connecting the geotextile and the vacuum pump (3) by a pipe, the vacuum pump (3) is operated to apply a vacuum pressure to suck the water in the ground to facilitate the consolidation of the soft ground.

The high-fiber soil-geotextile composite (1), which is the core of the present invention, is manufactured by treating the general geotextile (5) having excellent drainage capacity with a solidified soil (4) based on CAS, and thus, It has the high degree of drainage and the lower geotextile 5. At this time, the total thickness of the Gohwa-Geotextile composite (1) can be adjusted according to the condition of the ground, the strength can also be adjusted.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

FIG. 1 is a schematic diagram of a vacuum consolidation method for soft ground using the solidified soil-geotextile composite 1, which shows that the vacuum consolidation method is possible without a buried layer. FIG. 2 shows the shape of the Gohwa-Geotextile Composite (1), where the Gohwa (4) fills the voids of the Geotextile (5) and the Goats (4) and Geotextiles on top of the Geotextile (5). (5) is integrally behaved at the same time to have the characteristics of the order and strength of the solidified soil (4) and the toughness and flexibility of the geotextile (4) at the same time. In addition, the solidified soil 4 used in the present invention has good adhesion between the solidified soils, so that when there is a problem in airtightness during work, it is easy to reinforce later.

By using the high-fiber soil-geotextile composite 1 in place of the buried layer on the surface of the soft ground as described above, it becomes possible to replace the problem of landfill soil and expensive airtight sheets, thereby reducing the construction cost and construction period.

Claims (2)

Vacuum consolidation method using solidified soil-geotextile composites as landfills, airtight sheets and drainage channels In the vacuum consolidation method, a solidified soil-geotextile composite is used in place of a buried layer embedded on a soft ground surface for use as horizontal drainage and an airtight sheet used to block air. Gohwa-Geotextile Complex High-grade soils with high strength and airtightness that allow equipment to work on soft ground and high-grade soil-geotextile composites with excellent drainage capacity.