Technical Requirements for Bailey Bridges

1. When erecting a single span bridge, the horizontal distance between the rest angle piles on both sides should generally be less than 3~4 meters of bridge span.

2. The soil at the bridge seat on both sides should be solid. If the soil pressure does not meet the design requirements, the foundation under the bridge seat plate must be expanded or reinforced.

3. The height difference between the two sides should not be greater than 5% of the span of the bridge.

4. When the cantilever rafah is used to set up the bridge, we shall have equipment configuration and assembly site with a length not less than 1.5 times of the bridge span and a width of 8 ~ 14 meters. The site length should be no less than the span of the bridge when the method of side assembly and side push erection is needed due to local shape limitation.

5. The vertical slope of the assembly site shall be no more than 3%, and the horizontal slope shall be roughly level.