冻土动力学研究的现状及展望
发布时间：2018-09-13 09:08
【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。
[Abstract]:With the development of Belt and Road's initiative, the transportation project in cold area will be widely constructed. In order to ensure the long-term stability of engineering structures in cold regions under dynamic load, the theoretical and practical problems related to frozen soil dynamics need to be solved urgently. The dynamics of frozen soil is mainly concerned with the strength, deformation and stability of frozen soil under dynamic load. The dynamic parameters, dynamic strength, dynamic stress-strain relationship, dynamic creep characteristics and creep model of frozen soil dynamics, seismic response characteristics of frozen soil site, dynamic characteristics of pile foundation structure in frozen soil region are expounded. The research progress and achievements in seven aspects, such as dynamic response of frozen subgrade under train load, are discussed, and the development trend of each direction is prospected.
【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;中国科学院大学;南京师范大学地理科学学院;
【基金】：国家自然科学基金项目(41630636;41401077;41023003)资助
【分类号】：P642.14
本文编号：2240701
[Abstract]:With the development of Belt and Road's initiative, the transportation project in cold area will be widely constructed. In order to ensure the long-term stability of engineering structures in cold regions under dynamic load, the theoretical and practical problems related to frozen soil dynamics need to be solved urgently. The dynamics of frozen soil is mainly concerned with the strength, deformation and stability of frozen soil under dynamic load. The dynamic parameters, dynamic strength, dynamic stress-strain relationship, dynamic creep characteristics and creep model of frozen soil dynamics, seismic response characteristics of frozen soil site, dynamic characteristics of pile foundation structure in frozen soil region are expounded. The research progress and achievements in seven aspects, such as dynamic response of frozen subgrade under train load, are discussed, and the development trend of each direction is prospected.
【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;中国科学院大学;南京师范大学地理科学学院;
【基金】：国家自然科学基金项目(41630636;41401077;41023003)资助
【分类号】：P642.14
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