1. The movable engineering trestle bridge can be used in the narrow construction site of underground structure.

2. The plan selection and construction of construction trestle bridge and bored platform were introduced, and the construction methods of borehole and cofferdam were also presented.

3. This trestle bridge is characterized by unit interchangeability and bay adjustability. The application in construction site has proved its good performance.

4. In accordance with the specialities of the train ferry, the paper explores in detail the longitudinal section design of its trestle bridge.

5. The structure and construction technique of the Jiangyin Ferry Trestle Bridge on Xin-Chang Railway Lines were introduced.

6. Large-span arch truss steel bridge is a common superstructure of trestle bridge on open sea.

7. A study was made on maximum gradient of ferry trestle bridge for Yanda Railway. The principle of max. gradient computation is described and the formula for computation of maximum gradient is derived.

8. An analysis was made of current situation of study on railway ferry trestle bridge, technical characteristics and existing problems.

9. The structure and function of the automatic loading measurement control system of train trestle bridge are introduced, and the testing method of measurement accuracy is put forward.

10. The pile foundation construction technique at dissolution lime- rock area for the trestle bridge of Huaqing Express Highway are introduced.