Summary
This inspection project provided China Railway Chengdu Group with accurate line condition data, offering scientific basis for Shanghai-Wuhan-Chengdu Railway maintenance.
China Railway Chengdu Group Co., Ltd. Shanghai-Wuhan-Chengdu High-Speed Passenger Corridor
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- 2026/1/22 18:51:49
China Railway Chengdu Group · Yichang-Wuhan Section Inspection Project
Project Overview
RailwayCare provided comprehensive rail inspection solutions for the Shanghai-Wuhan-Chengdu Railway Yichang-Wuhan section under China Railway Chengdu Group. The Shanghai-Wuhan-Chengdu Railway is a crucial east-west high-speed passenger corridor in China, connecting the middle and lower reaches of the Yangtze River, with over 200 EMU pairs operating daily and annual passenger volume exceeding 100 million.
The Yichang-Wuhan section spans approximately 320 kilometers, traversing the Jianghan Plain with complex geological conditions and a high proportion of bridges and tunnels. With increased operation time and train density, systematic inspection and evaluation of track geometry, rail profile, and line smoothness were required.
Professional Inspection Equipment & Technology
To meet high-speed railway inspection requirements, RailwayCare deployed internationally advanced professional inspection equipment:
Railway Inspection Vehicle
Railway Crack Detection Car
Railway Profiler
Rail Wear Gauge
Inspection Results
Through systematic inspection, RailwayCare helped China Railway Chengdu Group identify the following key issues:
⚪ Abnormal Rail Wear: 28 rail profile abnormal points (mainly in curved sections)
⚪ Track Geometry Out-of-Tolerance: 45 track geometry out-of-tolerance points (gauge, cross level deviations)
⚪ Track Smoothness Issues: 63 track smoothness problem points (long-wave longitudinal level, alignment issues)
⚪ Rail Surface Fatigue Cracks: 20 rail surface fatigue cracks
⚪ Fastening System Problems: 35 fastening system problem points
Based on inspection data, RailwayCare provided detailed maintenance recommendations and priority ranking, helping China Railway Chengdu Group develop scientific maintenance plans.
Project Process
Phase 1: Preliminary Preparation
Project Initiation & Site Survey
October 2023: Coordinated with China Railway Chengdu Group's maintenance department to understand line characteristics and inspection requirements, conducting on-site surveys.
✓ Determined inspection equipment configuration plan and maintenance window schedule
Inspection Plan Development
Developed detailed inspection plan based on line characteristics, including inspection items, equipment configuration, data standards, etc.
✓ Determined to use RPS-2000 profile system, ITC-500 inspection trolley, and WMS-3000 wear measurement system combination
Phase 2: On-site Inspection
Equipment Installation & Calibration
November 1-3, 2023: Completed inspection equipment installation, calibration, and debugging at Yichang East Station.
✓ RPS-2000 profile system accuracy calibration, ITC-500 inspection trolley parameter setup, WMS-3000 wear measurement system baseline calibration
Track Geometry Inspection
November 4-10, 2023: Used ITC-500 inspection trolley to inspect track geometry along the entire line.
✓ Night-time maintenance window operations, inspecting 40-50km daily
Rail Wear & Profile Inspection
November 11-18, 2023: Used RPS-2000 laser profile system and WMS-3000 digital wear measurement system for precise rail measurements.
✓ Focused inspection of curved sections and turnout areas, wear measurement points every 200m, increased to 50m in special sections
Rail Ultrasonic Testing
November 19-25, 2023: Used UTS-300 ultrasonic testing system for internal defect detection in key rail sections.
✓ Focused inspection of bridge, tunnel sections, and rail welded joints, determining inspection priority based on wear data
Phase 3: Data Analysis
Data Preprocessing & Integration
Integrated track geometry data, rail profile data, wear data, and ultrasonic testing data with time-space synchronization.
✓ Established unified line database with over 60GB data volume
Abnormal Detection & Analysis
Used professional software to analyze inspection data, identifying track condition abnormalities and potential safety hazards.
✓ Employed multi-source data fusion analysis technology, with special attention to comprehensive assessment of wear-exceeding sections
Inspection Report Preparation
Prepared detailed inspection report including results, problem analysis, maintenance recommendations, and safety assessment.
Phase 4: Results Delivery
Technical Presentation
December 5, 2023: Presented inspection results to China Railway Chengdu Group's maintenance department and safety supervision office.
Data Delivery & Training
Delivered complete inspection data and reports, providing data usage training for China Railway Chengdu Group technical staff.
✓ Provided customized data analysis software and operation manuals, special training on wear data analysis and application
Project Acceptance
December 15, 2023: Project passed expert acceptance organized by China Railway Chengdu Group, receiving high evaluation.
Project Value
This inspection project provided China Railway Chengdu Group with accurate line condition data, particularly wear data providing critical basis for scientific maintenance of Shanghai-Wuhan-Chengdu Railway. Through precise inspection, expected to help client:
⚪ Extend Rail Service Life: Optimizing grinding plans based on wear data, extending rail life by 20-25%
⚪ Reduce Sudden Failure Rate: Timely detection of wear-exceeding sections, reducing sudden failures by over 40%
⚪ Optimize Maintenance Costs: Precise identification of maintenance needs, lowering maintenance costs by approximately 30%
⚪ Improve Operational Safety: Preventing rail fracture risks due to excessive wear
⚪ Enhance Passenger Comfort: Improving line smoothness, increasing train running stability