Effects of Wetting Rate and Aggregate Size on Erosion Processes at Hillslope in Three Red Soils; Coupled model of moisture and heat reaction during soil freezing and thawing under environmental climate condition

Coupled model of moisture and heat reaction during soil freezing and thawing under environmental climate condition

环境气候条件下土壤冻融过程中湿热耦合作用模型研究

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The damage propagation of rock under the freezing and thawing condition is a new direction of rock damage mechanics.

岩石冻融过程的细观损伤研究是近年来冻融损伤研究的一个新方向。

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Research on Mechanism of Soil Moisture Migration under Freezing and Thawing Condition

冻融条件下封闭体系中土壤水分运移规律模拟研究

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The Effect on the Distill of Amylose in Glossy Ganoderma Sporule Powder Treated with Ultrasonic and Thawing and Freezing Test of Liquid Nitrogen

超声-液氮冻融处理对灵芝孢子粉多糖提取的影响

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Research results demonstrate that this consolidation technology can make the pressure of municipal wastes consolidates reach more than 38 MPa. And the consolidates durability is better, such as resistance of freeze and thaw, resistance of water, resistance of dry-wet circle and resistance of sulfate erode.

研究结果表明：本固结技术可使生活垃圾固结体28d强度达38MPa以上，其耐久性能诸如抗冻性能、耐水性能、抗干湿循环能力和抗硫酸盐侵蚀性能较为优越。

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The relationship between damages of concretes such as carbonation, thaw and freeze under water and salt solution condition, sulfate crystallization corrosion and abrasion and permeation characteristics were analyzed in detail.

针对混凝土劣化的主要原因与机理，研究了混凝土碳化、水和盐溶液条件下的冻融破坏、硫酸盐物理结晶破坏与混凝土渗透性之间的相关关系。

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These cryopreserved ovaries were recovered with two thawing procedures-fast thaw in 40 ℃ water bath and slow thaw in room temperature. Thawed fetal ovaries were cultured to observe the follicular development and estradiol ( E 2) secretion.

复温时采用40℃水浴快速复温和室温下慢复温，然后进行组织培养观察卵泡发育和雌二醇（E2）分泌情况。

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The experimental results show that the impact of frost and thaw cycles and frozen temperature plays an important role in the damage propagation problem of rock under frost and thaw condition.

研究结果表明，冻融循环与冻结温度对岩石损伤有一定影响，而且就相同的温度条件来讲，岩石孔隙大小、孔隙贯通程度、孔隙率及岩石本身强度对损伤有着重要影响。

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At the same time, it can reduce the calculation time efficiently. The method proposed is an important improvement to the traditional numerical simulation, which can help to analyze the process of soil freezing, frost heave and thaw subsidence accurately.

该方法能够较为精确求解冻土温度场，是对传统方法的有效改进，也为土体冻结及冻胀融沉过程的精确分析创造了条件。

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At the same time, the culvert ′ s deformation of frozen soils including frost heave and thaw subsidence is asymmetry along its axes because of the changes of soil conditions.

由于场地冻土条件及地温场沿涵身的变化，涵洞基础变形沿涵身表现出明显的不均匀性。

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Secondly, the precipitation and the thaw of ice and snow affect the soil water that from 0 cm soil layer to 90 cm soil layer, and under 90 cm soil layer, the soil water change range smaller during a year.

呼伦贝尔典型草原自然降雨和冰雪的融化对土壤水分的影响深度为0~90cm，在该范围内的土壤水分明显受降雨的影响。90cm以下土壤在年内变化幅度较小，含水量在3%~5%之间。

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As traceless as a thaw of bygone snow;

如融雪般全然消逝；

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The dust emission much influenced by thaw time of soil, soil wetness and the thaw period and depth of frozen soil.

沙尘暴发生依赖于土壤融化时间、土壤融化期的土壤条件和上年冬季的冻土深度。

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The regression equations of embankments height and annual maximum thaw depth of permafrost were put forward to provide evidence for disease forecast of permafrost embankments.

本文还提出路基高度与冻土年最大融深之间的回归公式，为路基病害预测提供依据。

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Flow rate which is the dominant factor, followed by the freeze-thaw temperature, moisture content, thaw depth and the number of freeze-thaw cycles.

其中流量是主导因子，其次是冻融温差、解冻深度、含水率，再者是冻融循环次数。

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With increase of thaw depth pavement displacement markedly increased.

随着融沉深度增加，路面位移显著增加。

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The application of grouting method in subgrade thaw collapse treatment of highway

灌浆法处理公路路基融陷

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Test Study on Relation Between Thaw Collapse Displacement of Medium Sand and Negative Friction of Single Pile

中砂融沉位移与单桩负摩阻力关系的试验研究

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By use of the finite element equation from Biot theory, it presents the analysis and calculation of the uneven thaw collapse and deformation of tundra subgrade, and given the reference to attaching stress calculation.

采用Biot固结理论的有限元方程，对多年冻土地区路基的不均匀融沉变形进行计算与分析，为路面融沉附加应力计算提供依据。

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It shows that construction berm has limit effect on the ground temperature characteristics of embankment such as artificial permafrost table, annual mean ground temperature and thaw bowl, however, the thaw depth well increase and annual mean ground temperature will rise.

研究结果表明：设置护道对人为上限、年平均地温及融化盘等路基地温特征影响有限，但融化深度、年平均地温均表现为增大趋势；

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