铁道标准设计2016，Vol.60Issue(5)：20-24,5.DOI:10.13238/j.issn.1004-2954.2016.05.005
高速铁路有砟道床质量评价指标优化方法研究
Research on Evaluation Index Optimization Method of High-speed Railway Ballasted Bed
摘要
Abstract
Ballasted track is one of the most important type of track structures used in Chinese high-speed railway. Evaluation of ballasted bed quality is the focus during the construction of new railway lines and the daily maintenance of railway maintenance departments. In this paper, the correlation relationship of ballasted bed lateral resistance, longitudinal resistance and supporting stiffness in current norms are studied through field test, and then the experimental results are analyzed with linear regression. A quantitative method for analyzing the correlation of each evaluation index is proposed based on Pearson correlation mathematical model. Finally, testing equipment and testing method for critical ballasted bed quality evaluation are optimized based on analysis results. The results show that the correlation relationship between ballasted bed resistance and supporting stiffness is not obvious, but that between lateral resistance and longitudinal resistance is very positive. Therefore, this paper suggests using the single index of lateral resistance instead of both lateral resistance and longitudinal resistance to evaluate high-speed railway ballasted bed quality when setting relevant norms, with which the quality evaluation system of ballasted bed is optimized.关键词
高速铁路/有砟道床/横向阻力/纵向阻力/支承刚度/相关关系/测试设备/测试方法Key words
High-speed railway/Ballasted bed/Lateral resistance/Longitudinal resistance/Supporting stiffness/Correlation relationship/Testing equipment/Testing method分类
交通工程引用本文复制引用
马春生..高速铁路有砟道床质量评价指标优化方法研究[J].铁道标准设计,2016,60(5):20-24,5.基金项目
国家自然科学基金重大项目(U1234211) （U1234211）
