土工基础

›› 2018, Vol. 32 ›› Issue (2): 169-172.

• 工程实录 • 上一篇    下一篇

深季节冻土地区堤防温度及湿度变化规律研究

冯淑梅1 ,鲜少华2 ,骆行文2 ,卢正2 ,郎黎明1 ,关博1   

  1. (1.黑龙江省三江工程建设管理局,哈尔滨 150081； 2.中国科学院武汉岩土力学研究所，武汉 430071)
  • 收稿日期:2017-06-08 修回日期:2017-08-18 出版日期:2018-04-30 发布日期:2018-05-09
  • 作者简介:冯淑梅（1981-），女，硕士，工程师，研究方向为水利工程。
  • 基金资助:

    黑龙江省应用技术研究与开发计划引导项目（GZ16B029）

Temperature and Moisture Variations of a Levee in the Deep-Frozen Depth Regions

FENG  Shu-Mei-1, XIAN  Shao-Hua-2, LUO  Xing-Wen-2, LU  Zheng-2, LANG  Li-Ming-1, GUAN  Bo-1   

  1. (1.Heilongjiang Sanjiang Engineering Construction Administration Bureau, Harbin 150081；
    2.Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan  430071)
  • Received:2017-06-08 Revised:2017-08-18 Online:2018-04-30 Published:2018-05-09

摘要： 为研究深季节冻土区堤防工程冻结期间内部温度和水分的变化规律，以热传导和水分迁移的多场耦合方程为理论依据，采用有限元方法模拟堤防工程在冻结期间的温度场、湿度场变化。研究结果表明：堤身温度剧烈波动区深度为6 m；堤身温度的变化具有滞后性，并随深度增加而显著；堤身冻结过程中，冻结锋面处发生了由未冻区向已冻区的水分迁移；堤身的冻深略大于天然地层的冻深。

关键词: 深季节冻土区, 堤防工程, 温度, 水分迁移

Abstract: In order to study the temperature and moisture of levee in the deep seasonally frozen area during the periodic of freezing, the multifield coupling equations of the heat conduction and the moisture migration theory are adopted. The variation of the temperature field and the moisture field are simulated by the finite element method. The results indicate that: the depth of the temperature variation zone is 6 meters; The temperature field variation in the levee has laps behind the ambient temperature field, especially, this lap is increased with depth. In the process of freezing, the moisture transfers from the unfrozen zone to the frozen zone; The freezing depth of levee is slightly larger than that of the natural strata.

Key words: Deep Seasonally Frozen Regions, Levees, Temperature Variation, Moisture Migration