摘要
基于保护多年冻土的原则,通过对一般地区过渡段设置方法的改进,得到了一种用于青藏铁路清水河地区的新型式路桥过渡段的设置方法.通过对过渡段的沉降和热状况的现场监测,分析了过渡段沉降变形和热状况的变化规律,并对采用的设置方法所产生的实际效果进行了评价.
A new special structure of embankment-bridge transition section in permafrost regions is presented by modifying the structure of the transition section applicable to ecumenical regions, based on the observations of settlement and thermal state of a modified embankment-bridge transition section in Qingshuihe of the Qinghai-Tibet railway. The principle of permafrost protection is kept. The features of settlement and thermal state are analyzed, and the embankment-abutment transition method in permafrost regions, recommended in this paper, is evaluated.
出处
《冰川冻土》
CSCD
北大核心
2004年第6期800-805,共6页
Journal of Glaciology and Geocryology
基金
铁道部科技开发计划项目(2001G001 8 06 01)
国家自然科学基金项目(40171018
90102006)资助
关键词
路桥过渡段
多年冻土
沉降变形
热状况
embankment-bridge transition section
permafrost
settlement
thermal state
