冻胀

On the basis of the data of subgrade frost heaving observation in Chang-Yu freeway from 2000 to 2002 years,this paper analyzes the factors of temperature,water, soil and subgrade type which influence the subgrade frost heaving.

根据2000—2002年间对吉林省长余高速公路路基冻胀观测所获得的资料，分别分析了温度、水分、土质、路基类型等因素对路基冻胀的影响。

Owing to being lack of uniform freezing temperature and frost heaving tester at present in China, in the paper, the author has developed the freezing temperature and frost-heaving device which introduces computer to gather data.

由于目前国内缺乏统一的冻结温度及冻胀试验装置，本文自行研制了可实现微机数据采集的冻结温度及冻胀试验装置。

Based on the explanation, to analyze the relation of freezing velocity and frost heaving ratio, we can conclude that the frost-heaving ratio diminishes exponentially with the freezing velocity increasing.

并在此基础上分析了冻结速率和冻胀率之间的关系，得出了土体的冻胀率随冻结速率增大呈幂指数形式递减。

A new structure of anti-seepage channel which is frost heaving resistant and economical is presented in paper, that puts forward theoretic foundation for construction of anti-seepage channels in frost soil region.

本文通过对季节冻土区防渗渠道冻害情况调查和分析，在总结季节冻土区渠道防渗技术的基础上，分析了土的冻胀机理及特征，研究了渠道冻害成因特点与规律，从结构破坏形式的角度，提出了经济合理且抗冻胀的新型渠道防渗结构型式，从而为季节冻土区防渗渠道建设提供理论依据。

During a series of temperature cycles, there are critical temperature value successive displacement. Frost heaving and thaw settlement for slope soil surface are calculated and analyzed by applying self-design model triangle frame.

应用自行设计的变形测量装置对斜坡土体表面冻胀和融沉进行了计算和分析，得出冻土斜坡的融沉变形远远大于冻胀变形的结论，与青藏公路沿线多年冻土地区公路路基变形观测结果一致。

A series of closed simulated frost heaving experiments with medium sand and coarse sand of different clay contents were performed under different water contents,degree of saturations and dry densities.

对不同含泥量的中粗砂在不同含水量、饱和度和密实度状态下进行了一系列闭式冻胀模拟试验，用数理统计方法分别研究了不同含泥量中砂和粗砂的冻胀率随含水量变化规律，将中粗砂结合在一起进行综合分析，并将试验结果与现行规范和其他文献进行比较，指出两者不同之处。

Especially in the processes of frost heave and formation of ice, the function of stress is greatly important.

尤其在土体的冻胀变形和分凝冰的形成过程中，冻胀应力对冻土地区结构物具有不容忽视的影响。

The experimental results indicate that the changes of resistivity, temperature and deformation during freeze-thaw cycles are real-time and synchronical, which also proves that it is feasible to study the change of soil structure during freezing and thawing by using electrical resistivity method.

试验结果表明：冻融循环过程中电阻率与冻融变形的变化是实时的、完全同步的，利用电阻率特性研究冻融过程土体结构变化是可行的；每次冻融冻土电阻率随着冻融次数增加呈指数关系减小，融土电阻率随冻融次数增加呈指数关系增加；每次冻胀量与融沉量随冻融次数的增加而减小，平均干密度随冻融次数增加而增加，并且经过5次冻融循环后冻胀融沉量和干密度均趋于稳定。

Since porosity subject to heaving stress when saturated clay is freezing,grows brachy-axis is expanded,and yield point appears in micro-axis tip of porosity. As a result,area of porosity dramatically aggrandizes.

封闭系统中饱和冻结粘土冻胀过程中，孔隙受到冻胀力的作用使得孔隙长轴扩展、短轴膨胀，长轴尖端屈服，致使孔隙的面积增大。

Not only is the frozen-heave rate of salty soil relevant with the temperature, but also there is great linear relation with water content, soluble salt content and silt content.

冻胀率不但与温度有关，而且与含水量、易溶盐含量、粉粒含量有很好的线性关系，可用线性方程初步估算盐渍土的冻胀率。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。