Analysis of Causes to Scotches on Freight Car Wheels for Daqin Line;

Analysis of the Future Application of Freight Car Heavy Haul Draw Bars on Daqin Line;

Investigation and Suggestions on the Cars due for Periodical Inspection in the Trains Operating on Daqin Line;

Design of Special Signal and Interlock of Capacity-expansion Project on Datong-qinhuangdao line;

Probe into the High Resistance Grounding Problem in Tractive Power Supply System of Datong-Qinhuangdao Line

The essay introduces the practice and effect on introducing safety pre-alarm and prevention system for railway freightcars on Datong-Qinhuangdao line, discusses train operation, construction of information network, establishment of professionalgroup and normative operation standard, and puts forward further development orientation.

Test Study on Track Bridge and Subgrade Equipment of Datong-Qinhuangdao Railway under 20 000 t Freight Trains;

The Analysis is made for the achievements, economic benefits, the converted turnover per capita accomplished and the contributions to the national economic development from the Datong-Qinhuangdao railway heavy-haul transportation for 10 years.

General Introduction of Communication System for Locomotive Synchronic Operation and Control on Da-Qin Railway Line;

This paper not only introduces the test object and content of 20000 t Heavy Haul Train test on Da-Qin railway line,but also introduces the process of 8 tests from 2005 June to 2008 September,which adopt different Locomotives & Cars and different equipment.

Measures and Suggestions on Increasing Transportation Capacity of Dalian-Qinhuangdao line;

Analysis on the Maintenance System of the Contact Line System of Dalian-Qinhuangdao Line;

Based on the results of leveling data processing and the character of mineral,rock,stratum,and structure,we think the Qinling-Dabie tectonic line and Tanlu fault zone are two of the most important structures which control the tectonic movement in eastern China.