| 季节冻土区高铁路基冻胀研究进展及展望 |
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| 引用本文： | 苗祺,牛富俊,林战举,罗京.季节冻土区高铁路基冻胀研究进展及展望[J].冰川冻土,2019,41(3):669-679. |
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| 作者姓名： | 苗祺 牛富俊 林战举 罗京 |
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| 作者单位： | 中国科学院西北生态环境资源研究院冻土工程国家重点实验室,甘肃兰州730000;中国科学院大学,北京100049;中国科学院西北生态环境资源研究院冻土工程国家重点实验室,甘肃兰州,730000 |
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| 基金项目： | 中国科学院科技服务网络计划项目（KFJ-STS-ZDTP-037）；中国铁路总公司科技研究开发计划项目（Z2012-062）资助 |
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| 摘 要： | 随着我国高速铁路建设的快速发展，穿越广阔季节冻土区的高速铁路越来越多，工程面临的冻胀问题已成为研究和工程人员关注的焦点，并取得了许多研究成果。基于前人研究，总结了我国季节冻土区高速铁路路基冻胀特点和分布规律，探讨了高铁路基粗颗粒填料的冻胀特性及其影响因素，分析了路基在冻融过程中水热变化情况，讨论了现有高铁路基防冻害措施以及其适用性。在此基础上，提出季节冻土区高铁路基冻胀研究面临的主要问题及展望，为季节冻土区高铁路基冻胀及其防治工作研究提供新思路。
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| 关 键 词： | 季节冻土 高速铁路 路基 冻胀 研究进展 展望 |
| 收稿时间： | 2018-11-19 |
| 修稿时间： | 2019-01-27 |
Progress and prospects of research on frost heave of high speed railway subgrade in seasonally frozen regions |
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| MIAO Qi,NIU Fujun,LIN Zhanju,LUO Jing.Progress and prospects of research on frost heave of high speed railway subgrade in seasonally frozen regions[J].Journal of Glaciology and Geocryology,2019,41(3):669-679. |
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| Authors: | MIAO Qi NIU Fujun LIN Zhanju LUO Jing |
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| Institution: | 1. State Key Laboratory of Frozen Soil Engineering, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China;2. University of Chinese Academy of Sciences, Beijing 100049, China |
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| Abstract: | An increasing number of high speed railways have been built in seasonally frozen soil regions of China. Engineering problems associated with frost heave, which seriously affects the engineering quality and operation safety, have received a generous concern and achieved significant research results. Based on the previous studies, in this paper, a summary is presented on frost heave characteristics and distribution in seasonally frozen soil regions with high speed railways, then the variations are analyzed of soil moisture and heat situation during freezing process of subgrades. The frost susceptibility is discussed of high speed rail railway filled of various fine content and under various water and temperature conditions. Finally, the existing anti-frost heave measures are classified and assessed according to their serviceability. Above all, a prospect of potential research directions about frost heave in high speed railway are presented, including new ideas for better interpreting the frost heave mechanisms and puts forward appropriate measures for mitigating frost heave deformation of high speed railway in seasonally frozen soil regions. |
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| Keywords: | seasonally frozen soil high speed railway subgrade frost heave research progress prospect |
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