| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an underground embedded porous conduit capable of making embedding space greatly narrower when cable and water supply pipe, or water drain pipe are embedded, surely protecting the water supply pipe or the water drain pipe, and using plastic pipe as the water supply pipe or the water drain pipe. <P>SOLUTION: Many holes 4 continuing in a longitudinal direction are formed by arranging many blocks 2A, 2B having grooves 3 on one or both of an upper and a lower surface thereof in the longitudinal direction in the longitudinal direction to make end surfaces abut each other and make the grooves 3 continue, and piling the same in many stages to make the grooves 3 oppose. Protection pipes 5 continuing in the longitudinal direction are arranged in all holes 4, the cable for transmitting power or signal is laid in the protection pipe 5 in lower side, and the water supply pipe or the water drain pipe 8 is laid in the protection pipe 5 in an upper side. <P>COPYRIGHT: (C)2008,JPO&INPIT</p> |
