冻融循环对土体结构性有较大影响。
Freezing-thawing cycling has a great impact on structural properties of soil.
它导致反复冻融循环时冰层厚度不断增加。
It results the thickness of ice layer continuously increasing in freezing and thawing cycles.
分析了混凝土冻融循环劣化新的原因和机理。
A new interpretation of freeze-thaw deterioration of concrete is proposed.
氯离子扩散系数随着冻融循环次数的增加而增加。
The chloride concentration and diffusion coefficients increase with Numbers of freezing-thawing cycles.
根据计算结果发现，冻融循环对边坡的稳定性有较大影响。
According to calculation result, freezing-thawing cycling has a great impact on stability of slope.
研究了钢渣微粉对混凝土路用性能和抗冻融循环能力的影响。
The effect of steel slag powder on road properties and freezing and thawing resistance of concrete was studied.
用电子显微镜检验了混凝土承受不同冻融循环后的微观结构。
The microstructure of concrete after different freezing and thawing cycles were inspected using electron microscope.
经过一个冻融循环，青藏铁路清水河试验段出现了较多裂缝。
There are many cracks in subgrade in Qingshuihe experimental section after a freezing-thawing cycle.
碱骨料反应和冻融循环是影响混凝土耐久性的两个重要因素。
The two important factors of affect concrete durability are AAR (Alkali aggregate reaction) and freeze-thaw cycles.
相比而言，砂岩对冻融循环更敏感，而受荷损伤最终导致页岩破坏。
In comparison, sandstone is more sensitive to the freeze - thaw cycles, and load damage will lead to the destruction of shale eventually.
钢筋锈蚀和混凝土冻融循环是影响钢筋混凝土结构耐久性的重要因素。
The corrosion of steel bar and the alternative freezing and thawing of concrete are the important effects on the durability of RC structures.
多年冻土地区路基病害主要由冻土土体在季节变化条件下的冻融循环造成的。
The disease of subgrade in permafrost region was mainly induced by frost heaving and thawing circulation of frozen soils because of change of seasons.
研究了天然盐渍土在多次冻融循环时的水分和盐分迁移规律及强度变化特征。
Moving patterns of water and solute migration and variations of shear strength of the representative crude saline soils were studied for different kinds of soils.
结果表明普通低标号混凝土抗冻性能较差，冻融循环对混凝土强度影响较大。
The result indicated that the resistance to freezing and thawing of normal low-strength concrete is very low. Freeze-thaw cycles have important affect to concrete strength.
因此研究不同初始含水饱和情况下岩石冻融循环损伤特性对岩体工程具有重要意义。
Therefore, it is very interested to research the rock characters under damages by frost and thaw in the condition of different initial water-saturation.
通过试验研究了盐溶液类型及冻融循环等外部环境对混凝土中氯离子扩散性能的影响。
The effect of exotic environment such as salt solution type and freeze-thaw cycles on chloride diffusion in concreteies was studied by experiment.
所以，对于盐环境中经受冻融循环作用的钢筋混凝土结构，加强其耐久性设计非常重要。
So it is important to the reinforced concrete structures exposed in salt environment and subjected to freezing and thawing cycles for the durability design.
对冻融循环试验结果研究，提出基于动弹性模量衰减的纤维轻骨料混凝土冻融损伤模型。
The research to establish a model of freeze-thaw damage of fiber reinforced lightweight aggregate concrete for relative dynamic elastic based on experimental results has been done.
重点论述了严寒地区桥梁、高速铁路等在疲劳荷载和冻融循环耦合作用下的损伤劣化特征。
The damage and deterioration of concrete as bridge, highway in cold climates subjected to dynamic load and frost cycles are outlined.
通过对试验数据的整理，分析了冻融循环次数对四个强度等级混凝土的强度和变形的影响。
According to data collected in experiments, freeze-thaw effect on strength and deformation of four different strength grade concretes were analyzed.
深入系统地分析了岩石受冻融循环影响的冻融破坏过程、影响因素，研究了其冻融破坏机理；
The process of the rock failure due to freezing and thawing and the effect factors are systematically analyzed, also the mechanism of rock failure due to freezing and thawing is studied.
十三陵抽水蓄能电站上水库的钢筋混凝土面板是一种在严酷冻融循环条件下运行的钢筋混凝土结构。
The reinforced concrete face slab for the upper reservoir of the Shisanling Pumped Storage Power Station is a structure under bitter cycle of freezing and thawing.
研究结果表明，对于初始损伤相同的岩石，初始饱水状态将决定冻融循环对其损伤扩展的影响程度。
The research shows that the degree of damaged extension is determined by initial water-saturated state for the same initial damaged rocks.
把其中的单甲用乙醇提取出来，在分光光度计上比色，可作为冻融循环中产生的氧化胁迫的定量指标。
The ethanol extractable mono formazan was measured by a spectrophotometer, and used as a quantitative indicator of oxidative stress that developed during a freeze thaw cycle.
基于损伤力学、断裂力学、弹性力学等理论，对冻融循环条件下主控结构面的产生和扩展进行了研究。
Based on the theory of damage mechanics, fracture mechanics and elastic mechanics, the formation and expanding of control fissure were researched under the condition of cycle of freezing and thawing.
通过风干和增湿改变试件的含水量，并经历不同的冻融循环次数后，分别测试土体的无侧限回弹模量。
The water content of the soil sample was changed by drying and humidification process. After different freeze-thaw cycles, the unconfined resilient moduli of the soil sample were tested respectively.
随冻融循环过程增加，低密度土体的黏聚力有所提高，而高密度土体的黏聚力下降，内摩擦角变化较小。
With the repeatedly freezing-thawing cycles, the cohesion of low density clay increases, but the cohesion of high density clay decreases, and the internal friction Angle of the clay changes little.
同时，试验分析了养护石灰土的工程特性，特别是探讨了养护龄期及冻融循环对石灰土无侧限抗压强度的影响。
The influences of the maintained time and the freeze-thaw cycling on the unconfined compression strength of lime soil are discussed.
同时，试验分析了养护石灰土的工程特性，特别是探讨了养护龄期及冻融循环对石灰土无侧限抗压强度的影响。
The influences of the maintained time and the freeze-thaw cycling on the unconfined compression strength of lime soil are discussed.
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