| 摘要 |
A joint of an underground passage is provided to increase durability by discharging underground water smoothly and rapidly through a drainage passage using a drainage guide plate. The invention relates to a joint of an underground passage having a gap(10) formed on each cut portion and filled with joint filler, wherein includes a two-stage retreated groove divided into the top and the bottom to use the top as a space filled with joint filler to connect the cut portions of the underground passage and to use the bottom as a space for installing a drainage guide plate to prevent underground water from flowing upward and to discharge the underground water laterally, a drainage guide plate(40) installed on the bottom of the two-stage retreated groove, a support plate(50) installed to support the drainage guide plate and to separate the retreated groove of the top and the retreated groove of the bottom and provided with a guide rail to support the drainage guide plate to be movable in vertical and horizontal directions, a filling portion(60) filling the retreated groove of the top with joint filler, a cap installed on a connection between the support plate and the drainage guide plate to prevent the inflow of impurities, and a finish layer(80) placed on the top of the filling portion and the top of the underground passage with road sealant and aggregate. |
