| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a manhole structure and a cable construction method of constructing a cable without providing a connection section from a manhole on the halfway of construction path. <P>SOLUTION: This manhole 1 is composed of a manhole body part 2 whose inside is formed like a hollow box, a manhole neck part 3 having a manhole in hole part 5 in the inside, and a slit part 4 for cable incoming line having a slit communicating from an upper part to a lower part. A plurality of pipe passages 8 storing the cable 9 in the underground part are connected with the manhole body part 2. An upper part on the ground surface and the inside of the manhole body part 2 are mutually communicated through the inside of the manhole neck part 3 and the slit part 4 for cable incoming line, and length of the manhole in hole part 5 and the slit part 4 for cable incoming line is longer than diameter of allowable bending of the cable 9. After the cable 9 comes into the pipe passage on one side from one end side, and the cable 9 comes into the pipe passage on the other side from the other end side by this configuration. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
