| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an underground heat exchange pile allowing highly efficient heat exchange between a heat exchange pipe and a space in the pile, causing no leakage of a flowable heat medium even when filled in the space in the pile and having improved workability and maintenance. <P>SOLUTION: The underground heat exchange pile comprises the heat exchange pipe provided in a hollow portion of an existing pile body, in which the heat medium flows and at least part of which is formed in a bellows shape. <P>COPYRIGHT: (C)2004,JPO |
