A data processing method for the precision surveying of ballastless track high-speed railway is put forward:first, choosing the compatible points in the control network by quasi-stable adjustment, then, adjusting the control network with the adjustment model of indirect observation in which the Baarda gross errors detection and Helmert variance component estimation are used.

Precisely survey for ballastless track in the passenger dedicated railway line;

A new method for dynamics modeling of ballastless track;

Influenced of train speed on dynamic characteristics of ballastless track subgrade;

The application of ballastless slab track is the main tendency for assuring the high stability and smooth of the track.

Taking the rapid transit from Tianjin to Binhai New Area for example, this article gives a description of the preliminary design, construction organization and budget estimate making for the track-laying on viaducts, and makes a comparison with the actual field construction to explore the construction organization of slab track of the rail transit system and performs a cost analysis thereof.

Study on the new unballasted track technique of passenger dedicated line

Based on a general review of the present development of unballasted track for high speed railwag in China and abroad,the unballasted track for Qin-Shen passenger train is comparatively analyzed in general structure property,manufacturing and construction,track maintainance,etc.

Through centrifugal model test of pile-plank subgrade for ballastless truck,the settlement and pile-soil interaction of pile-plank subgrade are studied.

The pile-plank embankment is a kind of new-type of ballastless truck in high-speed railway.

Pile-plank embankment is a kind of new-type form of ballastless truck in high-speed railway, it is composed with the reinforced concrete plank at its upside and reinforced concrete piles, subgrade and subground at its downside, and plank directly connectes with the track structure, the piles fixedly link to plank and together with the subgrade compose a bearing load structure system.