Bailey Bridge Of Standard Specification Survey

Before erecting the bailey bridge of standard specifications, the ground survey should be carried out according to the site situation; The main work is as follows:

(1) Determine the bridge midline and bridge span.

The most suitable middle line of the bridge is determined according to the connection position, terrain, height difference and geological conditions. Determine the minimum safe distance and bridge span from the rock to the shore of the thrust bank and the opposite bank.

(2) Determine the position and elevation of flat roll, rock and base plate.

Locate flat roll, rock and base plate seats. The elevation of the middle line pile, flat roll, rock and base plate of the bridge was measured. The midline pile of the bridge should be measured to the farthest reach of the opposite side of the nose rack.

(3) Determine the foundation elevation and its treatment scheme.

Determine the elevation of bridge foundation according to the elevation of connection embankment. The foundation treatment scheme is determined according to the bearing capacity of the foundation.