JP2741628B2 - Landfill method using honeycomb shaped blocks - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a construction method for reclaiming a part of a water area such as a sea, a lake, a river, or a river with a honeycomb-shaped block.

[Prior art] Conventionally, land reclamation of coasts, etc. is performed by constructing a closed embankment offshore, then dumping the landfill by sea with a sediment transport ship, or creating landfill ground by dredging, etc., and then performing some soft ground treatment. A construction method (for example, vertical drain construction method) was applied to stabilize the landfill.

[Problems to be Solved by the Invention] However, the above-mentioned conventional landfill method has significant problems such as pollution of the sea area at the time of dumping or dredging at sea, compensation for fisheries, and the like, and there are significant problems with soft ground treatment methods. There was a problem that cost was required.

The present invention has been made to solve the above-mentioned conventional problems, and an object of the present invention is to provide a honeycomb-shaped block which is not only short in construction time and inexpensive, but also free from water pollution. To provide a landfill method.

[Means for Solving the Problems] In the landfill method using the honeycomb-shaped blocks of the present invention, a dike is constructed at an offshore boundary of a landfill area, and the honeycomb-shaped blocks are laid in the landfill area while being stacked, and the sinking is performed. The artificial ground is formed by laying a sheet on the formed honeycomb-shaped block.

 The embankment may have a permeable structure.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

First, as shown in FIG. 1, a dike 1 is constructed at the boundary of the landfill area offshore of the landfill sea area.

Subsequently, the honeycomb-shaped blocks 2 are laid down in a stacked state in the landfill area in the embankment 1.

As shown in FIG. 2, the honeycomb-shaped block 2 is made of a synthetic resin non-woven material such as geotextile so as to form a large number of hexagonal column-shaped through holes in the thickness direction, that is, the vertical direction, that is, the through honeycomb chamber 2a. This is a honeycomb-shaped rigid structure band that has been formed and has sufficient compressive strength, particularly in the thickness direction (vertical direction), and has a large volume of voids. Therefore, there is no possibility that the present honeycomb-shaped block 2 floats on water unlike styrofoam. Note that the honeycomb-shaped block 2 may be molded from hard plastic.

The honeycomb-shaped block 2 is formed into an appropriate size in accordance with the structure, transportation, execution, and the like, and is stacked and connected at a landfill site. For example, as shown in FIG. 3, the stacking connection method includes connecting the connection protrusions 3a projecting up and down on the connection substrate 3 to the upper and lower honeycomb-shaped blocks.
This is performed by fitting two or two through honeycomb chambers 2a.

When the deposition of the honeycomb-shaped block 2 is completed, the sheet 3 'is laid thereon.

Subsequently, the embankment is laid on the sheet 3 'and the artificial ground 4
Create A catch basin 5 is installed at an appropriate position on the artificial ground 4 to perform drainage treatment. The drainage from the artificial ground 4 may be permeated into the inside of the honeycomb-shaped block 2 or may be discharged to the sea area outside the embankment 1.

The embankment 1 is constructed by embedding grindstones in a honeycomb-shaped block and stacking the grindstones so as to be permeable, so that seawater can enter the honeycomb-shaped block 2 of the artificial ground. Otherwise, a microbial film is formed in the honeycomb chamber 2a to exert a purifying action.

[Effects of the Invention] (1) A landfill ground can be created without polluting the water environment such as the sea, and there is no possibility that problems such as compensation for fisheries will occur.

(2) By injecting seawater or the like into the inside of the honeycomb-shaped block, a biofilm is formed in the honeycomb chamber, and the water can be purified by the action of microorganisms.

(3) The ground can be constructed without having to drain water such as seawater.

(4) There is no need for soft ground treatment.

[Brief description of the drawings]

FIG. 1 is a sectional view of a landfill structure according to the method of the present invention, and FIG.
The figure is a partial perspective view of the honeycomb-shaped block, and FIG. 3 is a connection explanatory view of the honeycomb-shaped block. 1 ... embankment, 2 ... honeycomb-shaped block, 2a ... penetrating honeycomb chamber, 3 ... connection board, 3a ... connection protrusion, 3 '...
... sheets, 4 ... artificial ground.

Claims (2)

(57) [Claims] Claims 1. An embankment is constructed at an offshore boundary of a landfill area.
A landfilling method using a honeycomb-shaped block, wherein the honeycomb-shaped block is laid down in the landfill area while being stacked, and a sheet is laid on the sunk honeycomb-shaped block to form an artificial ground. 2. The landfill method using a honeycomb-shaped block according to claim 1, wherein the embankment has a permeable structure.