Method for developing land

a technology for developing land and developing islands, applied in artificial islands, weather influence devices, building repairs, etc., can solve problems such as underwater risk of islands, and achieve the effects of reducing water level, increasing air pressure, and reducing water level

Inactive Publication Date: 2013-04-04
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  • Abstract
  • Description
  • Claims
  • Application Information

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Benefits of technology

[0014]According to the present invention, by reducing the air pressure inside the sealing dome, the water level in the sealing dome can be raised above the island, allowing the coral to naturally grow on the island. This makes it possible to develop land through the workings of nature.
[0015]When the sealing dome has an arc-shaped cross section, the sealing dome can be provided with a sufficient

Problems solved by technology

In small islands such as Okinotori Islands, for example, coastlines are disappearing due to coastal er

Method used

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Embodiment Construction

[0019]Below, embodiments of the present invention will be explained in detail with reference to figures.

[0020]FIG. 1 is a schematic cross-sectional view showing a method for developing land according to an embodiment of the present invention. As shown in FIG. 1(a), an island 1 has an aboveground portion 1a exposed above the sea level 2.

[0021]In the method for developing land of the present embodiment, in this state, the island 1 is covered with a sealing dome 3 larger than the aboveground portion 1a such that a space s1 is created between the island 1 and the sealing dome 3 and such that a lower edge 3a of the sealing dome 3 is located in the sea, i.e., below the sea level 2 as shown in FIG. 1(b). Because of the arc-shaped cross section, the sealing dome 3 has a sufficient strength to withstand the atmosphere pressure acting thereon when the air pressure is reduced. It is preferable that the sealing dome 3 be made of a transparent material that is light and strong such as polycarbon...

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Abstract

Provided is a method for developing land through the workings of nature. An island (1) is covered with a sealing dome (3) larger than an aboveground part (1a) of the island such that a space (s1) is created between the island (1) and the sealing dome (3) and a lower edge (3a) of the sealing dome (3) is located in the sea, i.e., below the sea level (2). Subsequently, with a gap (s2) between the lower edge (3a) of the sealing dome (3) and a sea bottom (1b), a pile (4) secured to the lower edge (3a) of the sealing dome (3) with a bolt (not shown) is driven into the sea bottom (1b) to secure the sealing dome (3). Then, a pump (5) provided in the sealing dome (3) is actuated to reduce the air pressure of the sealing dome (3). According to the Pascal's law, this causes the seawater to be drawn into the sealing dome (3), allowing the sea level (2a) inside the sealing dome (3) to rise above the aboveground part (1a) of the island (1). With the island (1) left under this condition, coral (6) will naturally grow thereon.

Description

TECHNICAL FIELD[0001]The present invention relates to a method for developing land such as an island.BACKGROUND ART[0002]In small islands such as Okinotori Islands, for example, coastlines are disappearing due to coastal erosion and rising sea level caused by global warming, and these islands are at risk of going underwater. To deal with this, measures for solving the problem of coastal erosion have been taken, which include placing a plurality of concrete blocks on the sea bottom near the coast so as to absorb the force of approaching waves.[0003]In Patent Document 1, for example, a method of building a natural rock block that is formed by mounting natural rocks on the surface of a concrete block is disclosed. By placing these natural rock blocks on the ground, the current velocity and wave force can be stabilized while maintaining the natural ecosystem, without sacrificing the natural landscape.[0004]As a solution to the problem of disappearing coastline, a method of placing concr...

Claims

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Application Information

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IPC IPC(8): E02D29/09E04B1/32
CPCA01G15/00A01K61/00E04B1/32E02D29/06E02B3/00Y02A40/81
Inventor HOSHINO, AKIHIRO
Owner STATICE
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