Artificial islands create structures

Abstract

This invention provides a method for treating and effectively utilizing mud generated during the extraction of rare earth resources, and offers an artificial island construction structure that balances environmental impact reduction with resource recycling. [Solution] After rare earth extraction, mud is recovered and solidified by compression, drying, and the addition of a hardening agent. Solidified soil blocks with an uneven shape, having recesses and protrusions on the top, bottom, left, and right, are stacked to form a revetment rock wall. Solidified soil is then used to fill the inside of the wall to create an artificial island. This structure allows for the gradual expansion of the artificial island while effectively utilizing the mud and reducing the environmental burden.

Description

Technical Field

[0001] The present invention relates to an artificial island construction structure using a technology for recovering and solidifying mud generated after rare earth collection, and particularly relates to a technology for constructing a rock wall for a shore protection and for the stepwise expansion of an artificial island.

Background Art

[0002] Conventionally, mud generated after rare earth resource collection has often been discarded without being utilized, and the environmental load has been a problem. Also, a method for constructing a stable shore protection structure at low cost in artificial island construction has been demanded.

Summary of the Invention

Problems to be Solved by the Invention

[0003] A method for treating and effectively utilizing mud generated along with the collection of rare earth resources has not been established, and there is a demand for providing an artificial island construction technology that achieves both reduction of environmental load and resource recycling.

Means for Solving the Problems

[0004] Mud after rare earth collection is recovered, and solidified residual soil obtained by solidifying through compression, drying, addition of a solidifying agent, etc. is used to stack solidified residual soil blocks with a concavo-convex shape (having concave and convex parts vertically and horizontally) to form a rock wall for shore protection. By filling the inside with solidified residual soil to construct an artificial island, a structure is adopted to gradually expand the artificial island while achieving effective utilization of mud and reduction of environmental load.

Brief Description of the Drawings

[0005] · Fig. 1: Plan view of an artificial island construction structure. The outer periphery is surrounded by a rock wall for shore protection ▲1▼, and an artificial island is formed by filling the inside with a landfill material ▲2▼. · Fig. 2: Cross-sectional view of an artificial island construction structure. It shows a state where the rock wall for shore protection ▲1▼ is composed of stacked concavo-convex shaped solidified residual soil blocks ▲3▼, and the inside is filled with a landfill material ▲2▼. • Figure 3: An example of the shape of the solidified excavated soil blocks that make up the revetment rock wall. The concave and convex parts suppress displacement and collapse during stacking. Detailed explanation of the invention

[0006] This invention relates to a technology for creating artificial islands using mud generated after the extraction of rare earth resources and solidified from that mud. In particular, it relates to the construction of revetment walls using solidified soil and the gradual expansion of artificial islands. Figure 1 is a plan view of the artificial island construction structure according to the present invention. The artificial island consists of a revetment rock wall formed on its outer perimeter (1) and a filler material (2) filled inside the rock wall. The revetment rock wall (1) is made of solidified excavated soil arranged in layers, surrounding the outer perimeter of the artificial island. The filler material (2) is solidified excavated soil filled in the shallow waters inside the rock wall, and forms the main body of the artificial island. Figure 2 is a cross-sectional view of the artificial island construction structure. The outer perimeter ▲1▼ revetment rock wall is constructed by stacking ▲3▼ solidified surplus soil blocks, which have an uneven surface. ▲3▼ Solidified surplus soil blocks are made by recovering mud after rare earth extraction and solidifying it through methods such as compression, drying, and the addition of a hardening agent. This gives them a stable shape, making it possible to prevent displacement and collapse when stacking them. ▲2▼ Reclaiming material is filled inside the rock wall to form the ground of the artificial island. Figure 3 shows an example of the shape of a solidified soil block. To enhance stability when stacked, the block surface is provided with recesses and protrusions. This allows adjacent blocks to interlock, which helps to suppress lateral displacement and collapse. This invention makes effective use of mud generated during the extraction of rare earth resources, thereby reducing environmental impact and promoting resource recycling, while also allowing for the gradual expansion of the artificial island. In the future, plants can be planted on the constructed artificial island, giving it the function of an oxygen supply source. As described above, this invention encompasses a technology for recovering and solidifying rare earth-element mud and a method for constructing artificial island structures, and possesses new technological effects that are industrially useful and environmentally friendly.

Claims

1. It is an artificial island construction structure, The artificial island is surrounded by a ▲1▼ revetment rock wall made of solidified surplus soil containing mud after rare earth extraction, and the inside of the revetment rock wall is filled with ▲2▼ landfill material. Equipped with, The aforementioned revetment rock wall is composed of solidified excavated soil blocks having irregularities arranged in layers, and is characterized in that displacement and collapse during layering are suppressed.

2. In the artificial island construction structure (as described in claim 1), An artificial island construction structure characterized by being configured to allow for the gradual expansion of an artificial island by sequentially reclaiming multiple artificial island construction areas and stacking solidified soil blocks to construct a revetment rock wall around the perimeter.

3. In the artificial island construction structure (as described in claim 1 or 2), An artificial island construction structure characterized by having a configuration in which plants are planted on the upper surface of the constructed artificial island.

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