The earth surface subsidence rule in mining coal under special railway line at fully mechanized sub- level caving face 701 of Baojishan mine with finite element method is studied.

Research purposes: According to the characteristics of passenger dedicated railway line on conformation,load,durability,inspection function and appearance,the reasonable abutment is designed.

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;