Evaluation of frost heave model using measured values for temperature and water intake rate near the freezing front

IF 3.3 2区工程技术 Q2 ENGINEERING, GEOLOGICAL

Soils and Foundations Pub Date : 2025-02-01 DOI:10.1016/j.sandf.2025.101570

Takeshi Ishizaki , Satoshi Nishimura

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引用次数: 0

Abstract

Many frost heave theories and models have been proposed to explain the frost heave phenomenon. In the present study, systematic frost heave experiments were conducted under various temperature gradients and freezing rates, and the relationships between the water intake rate and the freezing front, freezing rate, temperature gradient in the frozen zone, and temperature of the ice lens growth surface were investigated. The experimental results showed that there is a linear relationship among the water intake rate, freezing rate, and temperature gradient, and that there is also a linear relationship between the water intake rate and the temperature of the ice lens growth surface. Based on these findings, the validity of the existing frost heave models was evaluated. The results of this study revealed that the water intake rate to the freezing front cannot be expressed only by the temperature gradient in the frozen fringe. In addition, a model in which the rate of the water intake into the ice lens is determined by the hydrodynamic resistance of the water flow in the frozen fringe cannot explain the experimental results well. With a kinetic model, in which the water intake rate is determined by the chemical potential difference between the ice lens and the nearby water film, it was found that the calculated results and the actual measurement results corresponded well when the self-diffusion coefficient of the water film near the ice lens was used as a fitting parameter.

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利用冰冻锋附近温度和吸水率的测量值对冻胀模型进行评价

人们提出了许多冻胀理论和模型来解释冻胀现象。本研究在不同温度梯度和冻结速率下进行了系统的冻胀实验，研究了取水量与冻结锋、冻结速率、冻结区温度梯度和冰透镜生长面温度的关系。实验结果表明，取水速率、冻结速率与温度梯度之间存在线性关系，取水速率与冰透镜生长表面温度之间也存在线性关系。在此基础上，对现有冻胀模型的有效性进行了评价。研究结果表明，冻结锋的进水量不能仅用冻结边缘的温度梯度来表示。另外，将水进入冰透镜的速率由冻结条纹中水流的水动力阻力决定的模型不能很好地解释实验结果。采用由冰透镜与附近水膜的化学位势差决定进水速率的动力学模型，以冰透镜附近水膜的自扩散系数作为拟合参数，计算结果与实际测量结果吻合较好。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Soils and Foundations 工程技术-地球科学综合

CiteScore

6.40

自引率

8.10%

发文量

审稿时长

5 months

期刊介绍： Soils and Foundations is one of the leading journals in the field of soil mechanics and geotechnical engineering. It is the official journal of the Japanese Geotechnical Society (JGS)., The journal publishes a variety of original research paper, technical reports, technical notes, as well as the state-of-the-art reports upon invitation by the Editor, in the fields of soil and rock mechanics, geotechnical engineering, and environmental geotechnics. Since the publication of Volume 1, No.1 issue in June 1960, Soils and Foundations will celebrate the 60th anniversary in the year of 2020. Soils and Foundations welcomes theoretical as well as practical work associated with the aforementioned field(s). Case studies that describe the original and interdisciplinary work applicable to geotechnical engineering are particularly encouraged. Discussions to each of the published articles are also welcomed in order to provide an avenue in which opinions of peers may be fed back or exchanged. In providing latest expertise on a specific topic, one issue out of six per year on average was allocated to include selected papers from the International Symposia which were held in Japan as well as overseas.