Considerations about the Reform of Line Repairing System in the Energy-expanding Transformation of Daqin Railway;

Research on the Rail Grinding in the Rail Maintenance of Daqin Railway;

This paper analyzes the problems existing in Daqin Railway at present, expounds some measures for operating the heavy haul train of 20 thousand tons on Daqin Railway, and advances the conception of operating the heavy haul train of 20 thousand tons on Daxin Station.

<Abstrcat> Based on the freight volume data of Da-qin railway between 1989 and 2003, quantitative estimation and speculation of the development foreground, scale and level of Da-qin railway are given in the paper with the cubic exponential smoothing method.

Da-Qin Railway was taken as an example.

The paper briefs on the current situation of radio communication system both at home and abroad, and discusses GSM-R design scheme of Beijing-Qinhuangdao railway from following points: the necessity to build GSM-R system, building scheme of the system, technology test and secondary development.

Detection of bearing force of elastic foundation beam reinforcing steel bar and soil pressure of foundation of railway bridge;

The reason and the consequence of damaged lamps on the railway bridge is analyzed,the necessity and development course of aseismatic lamps was introduced,and the paper carried out the discussion on the application of new LED lamps to the railway bridge.

Comparative Study on Engineering Geology for Site Selection of Lancang River Bridge on Dali-Ruili Railway;