I. Railway tracks
Railway track work is the key to ensure the safe operation of railway transportation. Its main contents include comprehensive inspection and maintenance of existing railway tracks, timely handling of problems found, and maintenance, adjustment, polishing, repair welding, replacement and other means to maintain track quality. Track reconstruction, maintenance and other engineering tasks, according to the requirements of the regulations for construction.
When laying new lines or updating old lines, the track should be laid according to the design requirements to control the quality. Debug, maintain and replace turnout equipment connecting different tracks to ensure normal work. Professional maintenance of power supply, signal and other equipment. Safety isolation and identification of construction site. It is also necessary to train and assess operators, adhere to standardized operations, and ensure the safety of railway transportation.
Two. Design of Bridges, Tunnels and Subway
The design of bridges, tunnels and underground railways is a complex system engineering, and designers need to design routes, structures, abutments, ingredients, construction, decoration, equipment and disaster prevention. In the stage of route design, the route direction of bridges, tunnels and subways should be reasonably selected according to the traffic demand and topographic and geological conditions.
In the structural design stage, the appropriate bridge type and tunnel structure should be selected according to the span, stratum conditions and load requirements. Load transfer and foundation form selection should be considered comprehensively in abutment design. The proportion of concrete, steel and other building materials should be designed economically and reasonably according to the use requirements and environmental conditions.
Three. Building and equipment maintenance work
Construction and equipment maintenance are the keys to ensure project quality and long-term safe operation. This requires starting from the construction preparation, making detailed construction plans and plans, rationally deploying personnel and mechanical equipment, and preparing materials. The construction process should be operated in strict accordance with the standards, and technical guidance and quality supervision should be strengthened to ensure the progress and quality.
Equipment installation should be carried out according to the requirements and regulations, and carefully debugged and put into operation. During the operation and maintenance, it is necessary to check and maintain regularly, replace damaged parts, keep operation records and deal with hidden dangers in time. It is also necessary to establish and improve the safety management system, strengthen operation training and assessment, and prevent accidents.