| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method and a structure for suppressing the surfacing of turbidity, which can prevent the diffusion of the turbidity to areas outside the region of work waters, without imposing a load on a surrounding environment, when a gap is made between the bottom of the water and a membrane material installed for the prevention of the diffusion of the turbidity. Ž<P>SOLUTION: In the structure A for suppressing the surfacing of the turbidity, a pollution prevention frame 11 for surrounding a turbidity producing source is installed in such a manner that a gap 35 is made between the bottom 3 of the water and the pollution prevention frame. A natural gas vaporizer 7 for taking in the water 1 from an intake 15 and cooling it is installed in a work barge 5. In addition, a drain pipe 17 for transporting the cooled water to a discharge port 21, arranged near a lower end of the pollution prevention frame 11, from the natural gas vaporizer 7 is provided. In the structure A for suppressing the surfacing of the turbidity, the water cooled by the natural gas vaporizer 7 is discharged from the discharged port 21, so that the temperature of bottom water on the periphery of the pollution prevention frame 11 can be decreased for the suppression of the surfacing of the bottom water, containing a turbidity component, outside the pollution prevention frame 11. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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