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- Title
高铁路基病害施工轨道几何尺寸监测与控制.
- Authors
徐家栋
- Abstract
In recent years, some foundations of high-speed railway have suffered from mud pumping disease, which heavily threatens security of railway operation and needs to be repaired in time. Existing monitoring technologies such as comprehensive inspection train and rail inspection vehicles, as well as manual precision leveling and InSAR technology, are characterized by poor timeliness, inability to guide construction in real time, and high cost. It's urgent to development a systematic and comprehensive monitoring and control technology and operating procedures. Through outer railway line test, on-site test, induction and summary, and involves Track Quality Index (TQI) and local uneven index (peak method) to evaluate the geometric variation of the tracks. Finally, a systematic operation process, considering variable techniques, such as highspeed comprehensive inspection train, rail inspection vehicle, manual observation, electronic level monitoring technology, VDA measurement technology, rotating laser monitoring technology, has demonstrated for the geometric monitoring and controlling during the disease treatment. Following the principle of “local integration with the whole” and “ multi-point real-time linkage and cycle monitoring”, 0. 1 mm accuracy deformation monitoring in real-time can be achieved. Engineering application case has proven that the comprehensive monitoring technology has practicality and accuracy in monitoring and controlling the process of subgrade disease treatment on high-speed railway.
- Subjects
ELECTRONIC surveillance; ON-site evaluation; THERAPEUTICS; RAILROADS; LASERS; HIGH speed trains
- Publication
Railway Investigation & Surveying, 2023, Vol 49, Issue 3, p62
- ISSN
1672-7479
- Publication type
Article
- DOI
10.19630/j.cnki.tdkc.202303010001