In order to meet the needs of daily inspection of existing track, the high-precise digital 3D track bound measure system based on can be developed together with the maintenance benchmark along the railway, for instance the simple tools like offset scale can be used for manual measurement.

This paper introduces the damage reason with tract foundation under 120 tons converter and presents the restructuring plan, which include resolving the loose problem about tract foundation under converter, orbit deformation and the out-of-gear between the built-in fitting and concrete.

The theory in the micro-interference of molecular orbits is generalized in this paper and especially the method of micro-interference with basal orbits in different energy is probed.

Taking the 200,000 dwt Ore Wharf of Fangcheng Port as an example,this paper analyzes how to optimize the design for the bucket wheel stacker-reclaimer′s rail foundation.

When newly installed crane has more wheel pressure than that specified by original rail foundation or it has longer traveling distance,balancing bogies can be used to reduce total cost in rail foundation rebuilding.