摘要
为梳理冻土理论在工程领域的研究进展,在总结前人研究成果的基础上,系统地总结了冻土理论下的冻土力学研究进展,冻土在动力作用下性状的研究进展,冻土的冻融研究进展,冻土水、热、力耦合机理研究;其中冻土的冻融研究进展中着重总结梳理了土体冻胀、融沉以及冻融循环对土体物理力学性质影响的研究思路。针对冻土水、热、力耦合机理研究,深入探讨了冻土水迁移理论、冻土温度场以及冻土三场耦合研究现状。最后,结合前人的研究成果,给出了进一步研究的方向:将理论研究和试验研究相结合,反复模拟出最贴近真实情况的冻土破坏机理;研究冻融或反复冻融条件下工程地质灾害情况,考虑运用三场或多场耦合原理模拟地质灾害最不利工况,用以指导实践。研究所得结果为冻土理论的继续研究提供思路,为寒区工程设计和施工提供参考经验。
In order to sort out the research progresses of frozen soil theory in engineering field, the progresses of the research on the mechanics of frozen soil, frozen behavior under dynamic effect, freezing and thawing of frozen soil, water, thermal and force coupling mechanism of frozen soil under the frozen soil theory are systematically summarized herein on the basis of the research achievements from the predecessors concerned;in which the research ideas of the impacts from frost heave and thawing settlement of soil mass as well as the freezing and thawing cycle on the physical-mechanical property of soil mass are mainly summarized and sorted out. For the research on the coupling mechanism of water, thermal and force, the research statuses of moisture migration of frozen soil, temperature field of frozen soil and the three-field coupling of frozen soil are deeply discussed. Finally, the direction for the relevant further research is given out in accordance with the research achievements from the predecessors. The achievements from the research not only provide the idea for the continuous research on the frozen soil theory, but also give the relevant referential experiences for the engineering design and construction in cold region.
作者
郭利娜
GUO Lina(Development Research Center of the Ministry of China,P.R.C.,Beijing100038,China)
出处
《水利水电技术》
北大核心
2019年第3期145-154,共10页
Water Resources and Hydropower Engineering
关键词
冻土
温度场
冻融
冻胀
三场耦合
研究进展
frozen soil
temperature field
freezing and thawing
frost heave
three-field coupling
research progress
