| 冻土动力学研究的现状及展望 |
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| 引用本文： | 陈敦,马巍,赵淑萍,穆彦虎.冻土动力学研究的现状及展望[J].冰川冻土,2017,39(4):868-883. |
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| 作者姓名： | 陈敦 马巍 赵淑萍 穆彦虎 |
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| 作者单位： | 1. 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;2. 中国科学院大学, 北京 100049;3. 南京师范大学 地理科学学院, 江苏 南京 210023 |
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| 摘 要： | 随着我国"一带一路"倡议发展主线的逐步开展，寒区交通运输工程必将得到广泛的建设。为确保寒区工程构筑物在动荷载作用下的长期稳定，对冻土动力学相关理论与实践问题的研究迫切地需要做出解答。冻土动力学主要研究的是动荷载作用下冻土的强度、变形和稳定性问题。通过归纳和总结，阐述了冻土动力学在动力学参数、动强度、动应力-应变关系、动蠕变特征及蠕变模型、冻土场地地震反应特性、冻土区桩基结构动力特性、列车荷载下冻土路基的动力响应等7个方面的研究进展及成果，并结合各方向的发展趋势进行了展望。
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| 关 键 词： | 冻土 动力学 交通工程 寒区 |
| 收稿时间： | 2016-11-20 |
| 修稿时间： | 2017-01-10 |
Recent research progress and prospect of frozen soil dynamics |
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| CHEN Dun,MA Wei,ZHAO Shuping,MU Yanhu.Recent research progress and prospect of frozen soil dynamics[J].Journal of Glaciology and Geocryology,2017,39(4):868-883. |
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| Authors: | CHEN Dun MA Wei ZHAO Shuping MU Yanhu |
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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;3. School of Geographic Science, Nanjing Normal University, Nanjing 210023, China |
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| Abstract: | The Belt and Road initiative will bring extensive expansion of the transportation engineering in cold regions.To ensure the stability of these engineering infrastructures under dynamic load,the dynamics of frozen soil needs further systematic study.The dynamics of frozen soil involves the strength,deformation and stability of frozen soil under dynamic loading.Through literature reviewing,recent achievements and progress of the dynamics of frozen soil,including the dynamic parameters,dynamic strength and dynamic stress-strain relationship,dynamic creep and creep model,seismic response characteristics of frozen soil,dynamic response of pile foundation within frozen soil,dynamic response of frozen soil roadbed under railway,are summarized.Finally,future development tendency of the dynamics of frozen soil is prospected based on the review. |
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| Keywords: | frozen soil dynamics transportation engineering cold regions |
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