【摘要】 土壤水的冻结和融化导致了反复的冻胀和融沉,我们必须进行冻土实验来防止寒冻破坏,所以制冷技术在冻土学中是很重要的,但是冻土学中有一些制冷技术和工艺的特殊要求,根据稳定纵向热流原理和使用比较法,测定了粗颗粒土和大含水量土的导热系数。详细介绍了冻土试验中恒温装置的特点、工艺和精度。我们的经验证明了制冷技术在冻土学中的应用具有广阔的前途。更多还原

【Abstract】 The freezing and thawing of soil-water induced repeated frost heave and thawed settlement. We must carry out experiment of frozen soils in order to prevent frost damage. Consequently, the refrigerating technique is highly important in cryopedology, but there are some specific requirements. Based on the principle of steady vertical heat flow and using the comparison method, the heat conductivities of various kinds of soils were measured. This paper explained in detail, the characteristics, technology and accuracy of constant temperature installation in the experiment of frozen soils.更多还原