盐渍土

By employing indicators as soil PH, conductance and salt content, different soil salinity degrees are plotted out. There arc 9 types of salinisation levels in Fukang oasis. Within them, the strong saline soil and solonchak are the main types, which, with regards to latitude and from the lower of diluvial fan to desert, distribute in turn as middle saline soil, strong saline soil, solonchak, strong saline soil, solonchak and non- saline distribute.

该文以电导、易溶性盐含量、pH作为盐渍化程度的指标，将阜康绿洲的土壤盐渍化程度划分为9种类型，其中以强盐渍土和盐土为主，在纬度梯度上从南至北，即从洪积扇下部到沙漠按照中盐渍土－强盐渍土－盐土－强盐渍土－盐土－非盐渍土的顺序依次分布。

From these researches as above, this paper found a new method to analysis salty soil road engineering properties by phase equilibrium theory, which provides a new angle of analysis on salty soil properties, experiment and engineering practice in these ways as follows:(1) Analysis the disadvantage of traditional salty soil experiment;(2) Analysis the disadvantage of current salty soil definition by phase equilibrium theory, and gives the chart of distinguish salty soil by the condition of hydrography and climate change;(3) Analysis the mechanics of subgrade frost boiling based on the change rule of liquid content;(4) Based on the change rule of ingredients content and volume in salty soil, analysis the mechanics of subgrade salt heaving and the restraining method by adding sodium chloride.

通过以上研究，本文初步建立了以相平衡理论为核心的盐渍土路用工程性质分析方法，该方法对盐渍土工程性质的理论分析、试验研究以及工程实践提供了新的研究思路与方法，具体体现在：(1)分析了传统的盐渍土试验存在的缺陷；(2)分析了现行盐渍土定义的不足，并以相平衡理论为基础，结合水文、气候条件的变化给出了判别盐渍土的诺谟图；(3)分析了盐渍土盐溶液含量的变化规律，并从盐渍土含液量变化规律出发，分析了盐渍土路基较非盐渍土路基翻浆严重的机理；(4)分析了盐渍土各固相含量及其体积的相变规律，并在此基础上分析盐渍土路基的盐胀机理，以及采用添加氯化钠来抑止硫酸盐盐渍土的盐胀机理

Depend on summarizing the prehuman of research fruit and through normal indoor experiment, the project characteristic of Jia An senior highway saline soil is studied and the choose range of basic physical mechanics index was given , which can provide basic data for the project of dealing with the saline soil design.

在总结前人研究成果的基础上，通过常规室内试验，对嘉安一级公路沿线的盐渍土工程特性进行了分析研究，给出了基本物理力学指标的取值范围，为盐渍土的工程处理设计提供了基础数据。

Because of the uncertainty of indexes in the process of classifying solonchak soil,the entropy value theory is applied to combining the traditional fuzzy comprehensive evaluation method for salt-affected soil classification.

针对盐渍土分类中客观存在的模糊性与随机性，将信息论中的熵值理论引入盐渍土综合评价中，运用信息熵所反映数据本身的效用值计算盐渍土评价中各指标的权值，使得权值的分配有了一定的理论依据，并结合传统的模糊综合评判法对盐渍土做出评价。

The unfrozen water content is negative exponent relation with temperature, direct proportion with density and water content.

盐渍土未冻水含量在0℃以下时与温度的绝对值成近似的负指数关系、与盐渍土盐溶液浓度成正比关系，与盐渍土总含水量成正比关系。

According to those data detected in this research, the conclusion of Tamarix chinensis had a remarkable effect that could be got, and the research provided theoretical basis to promote and utilize the coastal saline soil by Tamarix chinensis at the same time.

因此，根据所测的各项指标得出柽柳对滨海盐渍土具有改良作用的结论，为推动与利用柽柳在滨海盐渍土上的种植提供理论依据。

Consolidation test is a important link of obtaining mechanical properties index of soil and coefficient of compressibility gained through the test is a key data to evaluating the compressibility of soil. Consisting of solid phase and liquid phase of the salty soil is different from the non-salty one. Eutectic salt in soil may exist as liquid phase, solid phase or both of them and these phases can interconvert because it is affected by temperature, Na_2SO_4 content, water content. Especially when temperature drops, Na_2SO_4 will crystallize and expand, namely salt expansion of soil. These particularities make soil sample put in environmental cabinet when consolidation test is going on. So soil sample can be compressed by temperature controlling system under a set temperature.From experiment, the formulae counting coefficient of compressibility of salty soil have been given.

土的固结试验，是取得土的力学性质指标的一个重要环节，因为土的固结试验所取得的压缩系数，对评价土的压缩性是一个关键数据，但由于盐渍土的固相、液相组成和非盐渍土不同，土中易溶盐受温度、含盐量、含水量的影响可以以液相、固相、液相和固相混合形式存在，且它们之间的存在形式可以相互转换，尤其是当温度下降时，硫酸钠便结晶产生体积膨胀，即盐胀，这些特殊性就使得在进行硫酸盐渍土的固结实验时，须将土样放置在环境箱中，通过温度控制系统使土样在设定的温度下受压产生变形。

Through the analysis of salt-affected soil and effect of dispersion after changing the content of salt-affected thing, we conclude that using the soil block test, pin pole test is effective for assessing the dispersion because of affecting by high sodium ion .

通过研究分析盐渍土及改变盐渍含量对分散性试验的影响，认为土块试验、针孔试验对受高钠离子影响的盐渍土分散性评价是较为有效的方法。

According to the complexity of the sulphate salty soil,the paper analyzes the harm and the cause of the sulphate salty soil from the salt expansion,the collapsibility and the corrosion,studies the dynamic compaction to eliminate the collapsibility of the sulphate salty soil foundation,and puts forward the anti-corrosion measures.

针对盐渍土问题的复杂性，从盐胀性、溶陷性、腐蚀性方面分析了硫酸盐渍土的危害及其产生原因，结合具体情况，对强夯法消除硫酸盐渍土地基的溶陷性进行了研究，并提出了防腐处理措施，通过实际工程中的成功应用说明了该方法的可行性。

The main work of this paper is as follows:(1) Ignoring other small content and indissoluble salt, only considering sodium chloride and sodium sulphate, and suggesting these is no Chemical reaction between soil and salt, the phase change rule of salty soil follow the phase change rule of 〓 ternary water and salt system, which obey the phase equilibrium theory.

本文主要进行了以下研究工作：(1)在只考虑NaCl与Na〓SO〓两种易溶盐，而忽略其它在盐渍土中含量与溶解度均较小的盐类，并假定NaCl与Na〓SO〓不与土颗粒发生化学反应的基础上，盐渍土的相变规律实质上是〓三元水盐体系的相变规律，并服从相平衡理论。

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。