By combining with the current situations of Hu-Ning railway lines,the train classes and proportions as well as its distributions on the time axis also analyzed.

Comprehensive Monitoring System of Train Operation Safety for the Shanghai-Nanjing Railway;

This paper deals with the field test and theory appraisal about dynamic effect of raising speed on existing bridges in Shanghai-Nanjing railway.

The application of cement injection pile in soft soil foundation reinforcement of existing railway line;

Construction technology of trans-section continuously welded rail in speed-rising reconstruction of existing railway line;

Design example of existing railway line framed structural bridge of large span

On safety precaution of existing line construction;

Reinforce technique for existing line in hidden digging section of underground Dongdan station;

Through the practical application of D beam in the culvert construction of railway existing line converted project,it introduces the main characters,construction method,the programs should attention and the emergency steps of D beam,and it is the benefited assurance of assure the safe operation of the railway.

The design and application of traveling crane in the construction of spanning existing railway;

Exploration of problems in estimate making for elevating existing railways;

A constrained optimization method for deciding easement curve length in the raising operation speed of the existing railway;