| 摘要 |
PURPOSE: A road extension block is provided to be installed in narrow roads, thereby extending roads with maintaining installation state by weight. CONSTITUTION: A road extension block comprises a foundation(10), a filling space, an extended road(30), a central road(40), a filling hole, and a cover. The foundation is located on the top of the surface. The filling space is located on the upper side of the foundation. The filling space increases the weight of the foundation by being filled with filler. The extension road is extended from the foundation to the side of the upper end. The central road is positioned on the upper part of the filling space and has the same height with the extension road. The filling hole is formed on the upper part of the central road. |
