Method for developing land

Abstract

A method for developing a piece of land that is in danger of disappearing due to its small size above a seawater level, including covering the piece of land with a sealing dome larger than the piece of land such that a space is created between the piece of land and the sealing dome and such that a lower edge of the sealing dome is in the sea, securing the sealing dome, while leaving a gap between the lower edge of the sealing dome and a sea bottom, reducing the air pressure inside the sealing dome such that the seawater level inside the sealing dome rises above at least a part of the piece of land to allow coral to naturally grow on the at least the part of the piece of land, and returning the air pressure inside the sealing dome to the same air pressure as outside so that the naturally grown coral on the part of the piece of land becomes calcified coral by being exposure to air, and the calcified coral remains as a developed portion of the piece of land.

1 . A method for developing a piece of land that is in danger of disappearing due to its small size above a seawater level, comprising:
 covering the piece of land with a sealing dome larger than the piece of land such that a space is created between the piece of land and the sealing dome and such that a lower edge of the sealing dome is in the sea;   securing the sealing dome, while leaving a gap between the lower edge of the sealing dome and a sea bottom;   reducing the air pressure inside the sealing dome such that the seawater level inside the sealing dome rises above at least a part of the piece of land to allow coral to naturally grow on the at least the part of the piece of land; and   returning the air pressure inside the sealing dome to the same air pressure as outside so that the naturally grown coral on the part of the piece of land becomes calcified coral by being exposed to air, and the calcified coral remains as a developed portion of the piece of land.   
     
     
         2 . The method for developing a piece of land according to  claim 1 , wherein the sealing dome has an arc-shaped cross section. 
     
     
         3 . (canceled) 
     
     
         4 . A method for expanding a piece of land, comprising:
 covering an entire piece of land with a sealing dome such that an air pressure inside can be controlled and such that seawater can flow into and out of the sealing dome;   reducing the air pressure inside the sealing dome such that a seawater level inside the sealing dome rises above at least a part of the piece of land to allow coral to naturally grow on the piece of land; and   returning the air pressure inside the sealing dome to the same air pressure as outside after the coral has grown to a target size so that the naturally grown coral on the piece of land becomes calcified coral by being exposed to air, and the calcified coral remains as an expanded portion of the piece of land.   
     
     
         5 . The method for expanding a piece of land according to  claim 4 , wherein the covering step includes forming a hemispherically-shaped sealing dome by bonding a plurality of arch-shaped members. 
     
     
         6 . The method for expanding a piece of land according to  claim 4 , wherein the covering step includes forming the sealing dome including a transparent area to allow the piece of land to receive sunlight sufficient to grow coral. 
     
     
         7 . The method for expanding a piece of land according to  claim 4  further comprising:
 forming a protective barrier including an bottom flange placed on a sea floor, the bottom flange being installed below the sealing dome, 
 wherein the covering step includes installing the sealing dome on the bottom flange of the protective barrier, and at least one gap is formed between the sealing dome and the bottom flange so that the seawater flows freely into and out of the sealing dome. 
 
     
     
         8 . The method for expanding a piece of land according to  claim 7 , wherein the protective barrier includes a barrier wall installed on the bottom flange, the barrier wall being installed along an outside of the sealing dome. 
     
     
         9 . The method for expanding a piece of land according to  claim 7 , wherein at least one seismically isolated rubber structure is formed between the sealing dome and the bottom flange of the protective barrier. 
     
     
         10 . The method for expanding a piece of land according to  claim 7 , wherein the protective barrier is made of a water-resistant and salt-resistant material. 
     
     
         11 . The method for expanding a piece of land according to  claim 7 , further comprising:
 forming a plurality of wave-dissipating blocks along an outside of the protective barrier.   
     
     
         12 . The method for expanding a piece of land according to  claim 8 , wherein a height of the barrier wall is larger than a height of the sealing dome. 
     
     
         13 . The method for expanding a piece of land according to  claim 8 , wherein an outer periphery of the barrier wall has a slope shape to buffer sea waves. 
     
     
         14 . The method for expanding a piece of land according to  claim 4 , wherein the sealing dome is formed of a plurality of separate panels made of acrylic resin. 
     
     
         15 . The method for expanding a piece of land according to  claim 14 , wherein each of the plurality of separate panels is made from a laminate plate laminated by a plurality of acrylic base plates. 
     
     
         16 . The method for expanding a piece of land according to  claim 14 , wherein the covering step includes forming a hemispherically-shaped sealing dome by using polymerization bonding to assemble the plurality of the separates panels. 
     
     
         17 . The method for expanding a piece of land according to  claim 4 , further comprising:
 covering the sealing dome with an ultraviolet cut film to block ultraviolet rays harmful to coral growth.   
     
     
         18 . The method for expanding a piece of land according to  claim 4 , further comprising;
 adjusting at least one of a seawater temperature and a seawater saline concentration inside the sealing dome to an appropriate value until the coral grows to the target size.