| 摘要 |
PROBLEM TO BE SOLVED: To construct a grade separated crossing road in an extremely short period of time and solve the construction site securing problem. SOLUTION: A foundation structure for supporting piers is constructed between the installation sections of a viaduct. Two bridge girders are assembled on the ground at a site adjacent to both ends of the installation sections in parallel with the above works and the piers are assembled with the piers and further, the soil between filling sections connecting to both ends of the installation sections is improved. Subsequently, the two bridge girders together with the piers are transferred to the installation sites by a transportation truck. The bridge girders are arranged above the foundation structure previously constructed and then, the bridge girders are lowered to a specified level together with the piers. In this condition, the piers are temporarily fixed to the foundation structure. Next, a bank is constructed between the filling sections and foundation concrete to fix the piers to the foundation structure is placed and cured. Next, the mutually opposite ends of the two bridge girders are connected together to form the whole bridge girder. Finally, pavement is spread on the bridge face on the bridge girder and the filling to form a viaduct and a slope of filling. COPYRIGHT: (C)2004,JPO&NCIPI
|
