JPS60199109A - Reclamation work - Google Patents

Abstract

PURPOSE:To enable a reclamation site to be used in early period by a method in which water collectors formed by integrally attaching a water-permeable material to a water collecting tube are set in a reclamation site, and dredged soil is put to the reclamation site to permit water in the reclamation site to be discharged in early period. CONSTITUTION:Water collectors formed by attaching a water permeable material 2 to a water collecting tube 1 and also by attaching a float 5 to the material 2 of sheet form are set in a reclamation site 3. Dredged soil from a pump ship is discharged in the reclamation site 3 through a sand discharge pipe 7, and spill water is discharged to the outside from a spillway 8. When the reclamation work is finished, the surrounding water is absorbed through the sheet 2 and collected into the pipes 1 and then discharged through pipes connected to the pipes 1 by a pump, etc.

Description

[Detailed description of the invention] The present invention relates to a landfill method.

Conventional land reclamation methods have involved transporting dredged soil into a reclamation area surrounded by a revetment using pump ships, grab ships, conveyors, trucks, etc.; Consolidation and dewatering properties were extremely poor, so after being reclaimed and left for a long period of time, the topsoil was dried in the sun and then heavy equipment was brought in to improve the ground using paper drains, sand drains, fungusers, etc. Therefore, there is a drawback that it takes a long time before the landfill can actually be used.

The inventor of the present invention has conducted various studies to solve the drawbacks of these conventional methods, and as a result has completed a landfill method that allows for early use of reclaimed land.

That is, the present invention is a special reclamation method in which a water collection material in which a water permeable material is integrally provided with a water collection pipe is installed in a reclamation area, and then dredged soil is dredged by >Q people into the reclamation area. be.

Next, the present invention will be explained with reference to the drawings.

First, the water collecting material used in the present invention will be explained.

FIG. 1 shows an example of a water collecting material, and 1 indicates a water collecting pipe 2 made of a water permeable material. The water collecting pipe l has a cylindrical shape, and its material is preferably water permeable or perforated. Specific examples include Caldrane pipe (trade name manufactured by Mitsui Petrochemical Industries, Ltd.) and porous pipe. Further, the water-permeable material 2 can be in the form of a sheet, a perforated sheet, a string, or other shapes. Any material can be used as long as it has water permeability. When the water-permeable material a is in a sorted form, it is preferable to reinforce both sides with a net or cloth. It is preferable that the water-permeable material 2 is provided integrally by wrapping one end of the water-permeable material 2 around the water collection pipe 1 several times.

Next, a reclamation method using the water collection material will be explained.

First, let's take the example of water collection within the reclaimed area wcS as shown in Figure 2 at point &I4.
Attach it like this. As shown in Figure 3, the method of installing water collection material is to install water collection pipe 1 at the bottom of the reclaimed area, and install water permeable material 2.
A float 5 is provided at one end of the pipe, or as shown in Figure #4, the water collection pipe 1 is stood vertically and the permeable material 2 is attached in a blown 2<E shape.

Next, the dredged soil is discharged from the pump ship 6 through the sand discharge pipe 7 into the reclaimed area. When dredged earth and sand are put into a reclaimed area, the earth and sand gradually fill the area. Surplus water is drained to the outside from the spillway 8.

Since the cash exchange shown in FIG. 3 is provided with a float 5, the water-permeable material 2 is always extended upward. The water collection pipes are installed in series. In addition, when the water permeable material 2 is expanded into a shape as shown in Fig. 4, the polluted water flows toward the spillway 8 by discharging the berm and sand from the waste sand W7, and the water permeable material 2 becomes like a windsock and expands. be done.

When the reclamation is completed, the water-permeable material 1 absorbs the surrounding moisture, and due to its water-permeability, the absorbed water is transferred to the water collection pipe 1.
Collect water in The water collected in the water collection pipe 2 is drained by a pump or the like through a vibrator (N) connected to the water collection pipe 2] -4
- (not shown) In FIG. 4, water collected in the water collection pipe 2 is similarly drained to the outside by the pump 9.

By doing as described above, the wastewater in the landfill can be drained quickly, so that the landfill can be used effectively in a short period of time.

[Brief explanation of the drawing]

Fig. 1 shows a perspective view of the water collection material used in the present invention, and Fig.
The figure shows a plan view of the reclaimed area, and FIGS. 3 and 4 show cross-sectional views of the reclaimed area. Nippon Solid Co., Ltd. Sai/Seki'; f7λ diagram

Claims (1)

[Claims] A reclamation method in which a drainage pipe with a permeable material is attached to a water collection pipe within the reclamation area, and then dredged soil is introduced into the reclamation area.