Height is filled under city expressway overlength case bridge top and is advanced construction structures

The utility model discloses an including case bridge and the pipe canopy that sets up in the soil body under the city expressway is filled to the height, the both ends of canopy pipe all are equipped with the opening, the vertical stock that is provided with between the canopy pipe of pipe shed roof portion is equipped with the bearing board in the soil body of canopy pipe below, and the lower extreme of each stock stretches out canopy guan bingyu bearing board downwards and is connected, the upper end of each stock is connected with the crossbeam, and the crossbeam setting is in the soil body of city expressway way table department is filled to the height, the front end of case bridge is equipped with the adj. Tabular steel basil of being made by the steel sheet, and the length of the steel basil is the same with case bridge width, is equipped with a plurality of observation holes of lining up the steel basil along the fore -and -aft direction in the steel basil to the top of case bridge is advanced the dire