Underground power cable tunnels and the construction method thereof

摘要

In the present invention, in constructing an underground power tool that is constructed by continuously and combining a hollow box-type precast culvert in one direction in a construction process at a construction site, the bonding surface is filled with mortar on the bonding surfaces of the precast culverts that are connected to each other. Forming a joint groove for supporting the water-stop member inserted between the joint, forming a steel plate fastening grooves on both sides of the inner wall of the joint groove, inserting and fixing a steel plate in the steel plate fastening groove, and joining the precast culverts connected to each other The ground buried in the ground by preventing the mortar that is filled on the surface and fixes the joints between the precast culverts into which the waterstop member is inserted, from being separated from the inner wall of the joint groove formed on the joint surface of the precast culvert for reasons such as differential settlement. A structured underground power tool that effectively improves the watertightness of a power tool and its construction method are presented.