| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a material for freezing use, having high fluidity and high thermal conductivity and freezing an object to be frozen such as the ground in a short time owing to getting slight in the freezing latent heat of water released in its freezing, and to provide a ground freezing working method using the material. <P>SOLUTION: The ground freezing working method involves forming a heat transfer part 2 functioning to transfer the cold heat of brine subject to circulating feed into freezing pipes 1 inserted into boreholes H, wherein as a material for forming the heat transfer part 2, the material for freezing use is used. The material for freezing use is formed by kneading a constitutive raw material, which is obtained by mixing a base material consisting of soil-based powder and a highly thermally conductive material such as a metal or carbon fiber of higher thermal conductivity than the base material into a liquid followed by further mixing a dispersant functioning to disperse the highly thermally conductive material in the liquid to effect increasing the fluidity of the final material for freezing use. <P>COPYRIGHT: (C)2008,JPO&INPIT |
