| 冻结缘和冻胀模型的研究现状与进展 |
| |
| 引用本文： | 李萍,徐学祖,陈峰峰.冻结缘和冻胀模型的研究现状与进展[J].冰川冻土,2000,22(1):90-95. |
| |
| 作者姓名： | 李萍 徐学祖 陈峰峰 |
| |
| 作者单位： | 中国科学院寒区旱区环境与工程研究所冻土工程国家重点实验室!甘肃兰州 730000 |
| |
| 摘 要： | 为加深对冻胀机理的了解，首先研究与未冻水迁移密切相关的冻结缘是十分必要的。文章综述了冻结缘的微结构特征和冻结缘的特征参数（包括未冻水含量、导湿系数和冰、水相压力）。然后概述了各类冻预报模型的发展方向，并提出冻结缘和冻胀模型研究领域的工作重点是：继续加强冻胀机理的研究，深入测定冻结缘的特征参数和建立健全冻胀预报模型的综合评价。
|
| 关 键 词： | 冻结缘 未冻水含量 导湿系数 冻胀模型 冻土 |
State and Progress of Research on the Frozen Fringe and Frost Heave Prediction Models |
| |
| LI Ping,XU Xiao-zu, CHEN Feng-feng.State and Progress of Research on the Frozen Fringe and Frost Heave Prediction Models[J].Journal of Glaciology and Geocryology,2000,22(1):90-95. |
| |
| Authors: | LI Ping XU Xiao-zu CHEN Feng-feng |
| |
| Abstract: | In large permafrost and seasonally frozen ground regions, many damages to various constructions are the result of freeze-thaw action caused by water migration. In order to deepen the understanding of frost-heaving mechanism, it is necessary to research the frozen fringe closely related to unfrozen water migration. In this paper a general overview about microscopic structure characteristics of the frozen fringe and characteristic parameters of the frozen fringe including unfrozen water content, hydraulic conductivity and pressure between.ice and water was presented. And then developments of all kinds of frost heave prediction models were summarized. For further researching the frozen fringe it is urgent to continually strengthen the study of frost heave mechanism, thoroughly measure the characteristic parameters of the frozen fringe and perfect the general evaluation of frost heave prediction models. |
| |
| Keywords: | frozen fringe unfrozen water content hydraulic conductivity frost heave prediction model |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
