Geotechnical aspects for high-speed railways

被引：0
|
作者：
Brandl, H [1 ]
机构：
[1] Tech Univ Vienna, Inst Soil Mech & Geotech Engn, A-1060 Vienna, Austria
来源：
Geotechnics in Pavement and Railway Design and Construction | 2004年
关键词：
railway geotechnics; rail tracks; track models; soil dynamics; high-speed trains;
D O I：
暂无
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
Optimised design, construction, maintenance, upgrading and renovation of rail tracks for high-speed trains require a close co-operation between railway- and geotechnical engineering. The paper considers natural ground, sub-ballast, ballast, or ballast-less pavement, sleepers and rail a structural unit where all members interact. Pros and contras of conventional sleeper-ballast systems and ballast-less paved tracks are discussed. Multi-layered half space theories provide more realistic results than the conventional subgrade reaction models (Winkler springs). A new analytical rail track model, validated by in-situ measures is presented. Finally, factors influencing the maintenance of track bed are described.
引用
收藏
页码：117 / 132
页数：16
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