The paper discusses heat moisture migration in saturated freezing soil on the basis of mixture theory and continuum mechanics.
应用连续介质的混合物理论研究了饱和正冻土中的水热迁移问题。
The driving force of moisture migration in soil is the key of discussing the mechanism of freezing ice and frost heave and the stress of freezing soil.
土中水分迁移的动力势问题是探讨水分迁移成冰机理以及研究冻胀、冻土内应力等冻土工程问题的关键所在。
Seasonal freezing soil is a kind of special soil-water system in which there is ice crystal, and it is geology object composed of soil grain, ice, pore water, and gas.
季节冻土是一种含冰晶的特殊土水体系，由土颗粒、冰、孔隙水、气组成的四相地质体。
It was also shown that there was an inverse correlation between the speed of temperature variation and the initial water content for freezing soil, but no monotonic correlation for the thawing soil.
试验结果还表明：正冻土温度变化速率与其初始含水率间存在反相关性，而正融土温度变化速率与其初始含水率间无单调相关性。
Horizontal holes were drilled into the wet soil and liquid nitrogen was pumped in, freezing the water until the tunnel could be dug and cemented.
在湿的土壤中水平的打一些洞，然后泵入液氮对水进行冷冻，直到隧道可以被挖掘和用水泥封住。
Freezing weather will break up the soil into small pieces.
严寒天气会使土壤冻成小碎块。
If the area is on high ground, the soil is soft enough for them to dig deep enough to avoid freezing, and is an area that stays damp, then a healthy turtle can be hibernated outside.
如果冬眠地区在高原，土壤足够松软，使龟可以向地下挖深以避免被冻僵，冬眠地同时可以保存一定的湿气，那一只健康的龟就能在室外冬眠。
The normal frost heave force is an integral of soil frost heave stress at the freezing front along the range effected by a foundation.
法向冻胀力则是在冻结锋面上冻胀应力沿基础影响范围之内的积分。
We have referred to the research results, independently developed"the TLD-70 soil freezing experiment box".
本文参考了已有的研究成果，自主开发了“TLD-70土壤冷冻试验箱”。
In order to study the effect of the soil freezing point on the calculation of frozen wall thickness, some models of the artificial ground freezing temperature field were established.
为了研究土层冻结温度对冻结壁厚度计算的影响，构建了考虑土层实际冻结温度的人工冻结温度场模型。
According to the theory of similitude, a Liquid Nitrogen Freezing(LNF)model testing system for soil under water flowing at a great rate is established for the first time.
根据相似理论，首次建立了模拟大流水条件下土层液氮冻结的试验系统。
During the period of thawing in spring, water in soil comes from freezing water in the previous year.
春季解冻期的土壤水则来源于上一年的土壤封冻水。
Freezing in soil makes water transfer to frozen area, and it plays a very important role in the research of agriculture, water resources, environment and engineering.
土的冻结，引起水分向冻结区迁移，由此引发的问题在农业、水资源、环境及人类工程的研究中占有相当重要的地位。
Temperature and flow fields, and interfaces of water freezing in soil and crude oil solidifying in the pipeline were obtained through numerical simulation.
通过数值模拟，获得了停输期间温度场、流场以及土壤水分结冰界面和管道中原油凝固界面的分布情况。
The principle on freezing degradated night soil through the test has been studied and the impacting factors to the features of freezing night soil has been analyzed in the article.
通过实验对冰冻降解粪便的原理进行研究，并分析了冰冻对粪便特性的影响因素。
There are 6 main topics in the symposium:heat and mass transfer, frost susceptibility and frost heave, environmental soil freezing, engineering design and case histories.
会议共设6个专题 ：热质迁移、冻结敏感性和冻胀、力学性质、环境土冻结、工程设计和工程实例。
The frost heave ratio, as an index of classification of frost susceptibility for sandy gravel, mainly depends on not only the. content of fine grained soil but also its freezing condition.
饱水砂砾料冻结时之冻胀敏感性，以冻胀率的大小作为分类指标。它主要受细粒土含量及冻结条件的影响。
The volume of frozen soil will change because of the moisture freezing or thawing.
冻土在冻结、融化的过程中，伴随着土中水的冻结和融化，土的体积也随之发生变化。
The common problem of soil temperature field around oil pipelines buried in frozen ground area is the freezing damage.
冻土区埋地管道遇到的最常见问题是冻害破坏。
Based on surrounding environment, traffic requirement and construction experience, authors use horizontal freezing method to reinforce soil and mine method to excavate tunnel.
结合周边环境、交通要求及地铁旁通道施工经验，采用水平冻结法加固土体，矿山法开挖。
Freezing-thawing cycling has a great impact on structural properties of soil.
冻融循环对土体结构性有较大影响。
During the freezing period, the infiltration experiments were conducted and the infiltration characteristics of the frozen soil under different water temperatures were obtained.
该文通过土壤冻结期间积水入渗试验，获得了不同入渗水温条件下冻土的入渗规律。
The thermo dynamics mechanism of water and salt transportation in the salined wetland during the freezing and thawing period is substantial to the geographical occurrence mechanism of salinized soil.
冻融期间盐沼湿地水盐迁移的热力学机制是松嫩平原土壤盐化发生机制的重要组成部分。
The wind erosion hazard is often intensified by the poor vegetation cover and loosen surface soil due to the freezing and thawing over winter.
春季风大风多，降雨量少，气候侵蚀力高，地表植被覆盖率低，土壤表层由于冻融作用变的松散，是一年最易风蚀的季节。
The effect of alternative freezing and thawing can enhances the activities of some soil enzymes greatly, such as phosphatase, nitrate reductase and nitrite reductase.
冻融交替作用明显地增强土壤中磷酸酶、硝酸还原酶和亚硝酸还原酶的活性。
Based on soil field infiltration test, the effects of corn straw mulch on freezing-thawing soil infiltration capacity are discussed.
基于大田土壤入渗试验，讨论了玉米秸秆覆盖对土壤冻融特点及入渗能力的影响。
Freezing and thawing of soil moisture is accompanied with a series of physical processes in seasonal freezing-thawing areas, such as moisture transfer and heat exchange.
在季节性冻土分布区，土壤水分的冻结和融化必将会伴随着热量交换、水分迁移等物理过程。
The control method of the ground freezing effect to the surrounding soil is also discussed in the paper. At the same time, the distribution and variation law of temperature, stress and...
同时，现场实测所得温度、应力、位移场的分布与变化规律，对于今后冻结工程具有重要的指导意义。
Adding aggregate into modified soil can further increase water-resistance and anti-freezing capability of the soils.
改性土中加入骨料，可进一步增强土体的抗水、抗冻性能。
Adding aggregate into modified soil can further increase water-resistance and anti-freezing capability of the soils.
改性土中加入骨料，可进一步增强土体的抗水、抗冻性能。
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