Products Description
Rail installation is a crucial link in railway construction, and its installation quality is directly related to the safety and stability of train operation. The following are the key points to pay attention to when installing rails, which are expressed and summarized in points in combination with the relevant figures and information in the reference article:
1. Quality control
Raw material inspection: The raw materials of rails must meet national standards and need to be inspected, including chemical composition, physical properties, mechanical properties, etc.
Welding quality: The welding of rails must meet the requirements of relevant specifications to ensure the strength and quality of welds. After welding is completed, necessary inspections and acceptance should be carried out.
Packaging and transportation: During the quality control process, it is necessary to ensure the correct packaging and transportation of rails to avoid damage during transportation.
2. Safety measures
Construction site safety: During construction, on-site safety protection work must be done well, warning signs, temporary railings, etc. must be set up to ensure the safety of construction personnel.
Equipment safety: The relevant equipment used for rail installation must meet safety requirements and have safety protection devices to ensure the safe operation of equipment.
Fire prevention measures: When performing welding and other operations, effective fire prevention measures must be taken to avoid fire accidents.
3. Specific requirements
Track spacing and joint clearance: Track spacing and joint clearance should comply with the requirements of the "Mine Quality Standardization". Generally, the track gauge error is no more than 5mm and no less than 2mm, and the track joint clearance is no more than 5mm.
Track spacing and spike arrangement: When laying tracks, the track spacing is no more than 800mm, and 1 track is used on both sides of the track joint 200mm. The spikes must be complete and arranged in an inverted "eight" shape.
Track flatness and geometric parameters: After the track is installed, the track must be measured to ensure that the track's geometric parameters, flatness, etc. meet the requirements. At the end of the month, any 50-meter track is taken on site for acceptance. The sleepers of the blasting tunnel are aligned at one end, and the error of 50 meters does not exceed 5mm. The sleepers of the comprehensive tunnel are aligned at one end, and the error of 50 meters does not exceed 10mm.
