铁道标准设计2016，Vol.60Issue(7)：43-46,4.DOI:10.13238/j.issn.1004-2954.2016.07.010
青藏铁路修筑后次生不良冻土现象的特征及发展趋势
Characteristics and Developing Trend of Secondary Unfavorable Phenomena of Permafrost after Construction of Qinghai Tibet Railway
于雪飞 1熊治文 2武小鹏 3周有禄 3丁惠祥3
作者信息
- 1. 中国铁道科学研究院研究生部，北京 100081
- 2. 中铁西北科学研究院有限公司，兰州 730000
- 3. 中铁西北科学研究院有限公司，兰州 730000
- 折叠
摘要
Abstract
The construction of Qinghai Tibet Railway is likely to result in secondary unfavorable phenomena of permafrost, which may cause a lot of damages to the railway. It’s of great Significance to conduct researches on the characteristics and development law of secondary unfavorable phenomena of permafrost after the construction of Qinghai Tibet Railway. In this paper, the secondary unfavorable phenomena of permafrost along the Qinghai Tibet Railway is investigated and classified, and the mechanism, the characteristics and development trend of the secondary unfavorable phenomenon after the construction of Qinghai Tibet railway are studied. There are 18 secondary unfavorable phenomena having direct or potential threat to the Qinghai Tibet Railway. There are only a few secondary unfavorable phenomena related to the roadbed; the phenomena related to the bridge are mainly ice cone and ice mantle, the phenomenon related to culvert is mostly culvert sinking. Future temperature rise causing melting of underground ice near the upper limit of the permafrost may result in lots of secondary unfavorable phenomena that affect the normal operation of the railway.关键词
青藏铁路/次生不良冻土/多年冻土区/发展趋势Key words
Qinghai-Tibet Railway/Secondary unfavorable phenomenon of permafrost/Permanent permafrost region/Developing trend分类
交通工程引用本文复制引用
于雪飞,熊治文,武小鹏,周有禄,丁惠祥..青藏铁路修筑后次生不良冻土现象的特征及发展趋势[J].铁道标准设计,2016,60(7):43-46,4.
