路基工程Issue(3)：62-68,7.DOI:10.13379/j.issn.1003-8825.2018.03.13
既有长沙磁浮线路低置结构提速适应性研究
Research on Speed-increasing Adaptation of the Low-placed Structures in the Existing Maglev Lines in Changsha
杨泉 1高柏松 1冯读贝1
作者信息
- 1. 中铁二院工程集团有限责任公司,成都 610031
- 折叠
摘要
Abstract
Based on Hunan province's strategic emerging industries and new industrialization planning, technological breakthrough for maglev speed-increasing form the current 100 km/h designed speed of the existing middle-low speed maglev lines in Changsha to 160 km/h need to be made. Therefore, structural dynamic behaviors of bearing rail beam, foundation bed, etc. has been analyzed through FLAC3D numerial simulation under the speed of 100, 120, 140 and 160 km/h based on existing lines in this article. The result shows that dynamic stress in the beams, acceleration, dynamic displacement and dynamic stress in the foundation bed satisfy train operating requirements and the low-placed structures of the existing middle-low speed maglev lines in Changsha are still safe and reliable after speed increasing.关键词
既有磁浮线路/提速/低置结构/动力特性Key words
existing maglev lines/speed-increasing/low-placed structures/dynamic characteristics分类
交通工程引用本文复制引用
杨泉,高柏松,冯读贝..既有长沙磁浮线路低置结构提速适应性研究[J].路基工程,2018,(3):62-68,7.
