By taking track girders on Qinhuangdao-Shenyang quasi-high-speed dedicated passenger railway as prototypes,an experiment for about 3 a was conducted on three prestressed concrete model beams with a geometrical simulation ratio of 1 to 5 to probe into their creep behaviors.

Improving roadbed filling has become a critical problem to be solved in respect of high-speed railways since high-speed dedicated passenger lines have strict requirements to roadbed deformation.

Research on the construction technology of a beam fabrication yard in passenger dedicated line;

Track laying technology of newly built Shijiazhuang-Taiyuan passenger dedicated line;

Experimental research of graded broken stone technology in the transition section of Wu-Guang passenger dedicated line;

Experimental study on friction loss of prestressed pipe for 32 m simply supported box girder of passenger special line;

Analysis of train running performance on a basket handle arch bridge of concrete-filled steel tube on passenger special line;

Construction method of cast-in-situ beam in passenger special line by support method;