PURPOSE: To reinforce an existing cable layout road without limiting the application of a trunk road and secure a space capable of housing and inspecting the cable.
CONSTITUTION: This is intended for a cable layout road 12 to which a cable 5 is laid out. There are provided a reinforcing member 15 which reinforces an inner peripheral surface of the cable layout road 12 and a vertical hardware 3 which is mounted to the reinforcing member 15 and which supports the cable 5. The inner peripheral surface of the reinforcing member 15 is blocked out along the peripheral direction. The vertical hardware 3 is fitted into the blocked out portion. Therefore, since the cable reinforcing road is reinforced, the need for excavation work is obviated from a trunk road and no limitations are imposed to the use of the trunk road or the like. Moreover, the vertical hardware is fitted into the reinforcing member. This construction makes it possible to prevent the cross section area of the hollow part of the reinforcing member from becoming narrower and secure a housing and inspection space.
MAEHAMA KOUJI
SAKAIDA OSAMU
