中文摘要：

因为结冰融化周期的效果，地质的灾难将在岩石或土壤上发生在冷区域，因此在机械特征和岩石的渗透性质上学习这些周期的效果是很重要的。在这研究，红沙岩样品与 0， 4， 8 和 12 个周期被冻结并且融化，包括结冰和融化的 12 h 的 12 h 的每个周期。这些样品的 P 波浪速度被测量，并且不变的渗透的机械性质和进化被调查在一系列单轴并且 triaxial 压缩测试。试验性的结果证明与增加周期的结冰融化时间，红沙岩的 P 波浪速度减少。结冰融化周期的数字在内部磨擦的单轴的压缩力量，有弹性的模量，结合，和角度上有重要影响。在在在 triaxial 压缩下面的一个完全的压力紧张过程的结冰融化的周期以后的岩石样品的渗透的进化是仔细与在岩石中的微观结构的变化有关。与在压力紧张行为的所有阶段的轴的紧张在容量的紧张和渗透之间有一种高度相应的关系。

英文摘要：

Geological disasters will happen in cold regions because of the effects of freeze-thaw cycles on rocks or soils, so studying the effects of these cycles on the mechanical characteristics and permeability properties of rocks is very important. In this study, red sandstone samples were frozen and thawed with o, 4, 8 and 12 cycles, each cycle including 12 h of freezing and 12 h of thawing. The P-wave velocities of these samples were measured, and the mechanical properties and evolution of the steady-state permeabilities were investigated in a series of uniaxial and triaxial compression tests. Experimental results show that, with the increasing of cyclic freeze-thaw times, the P-wave velocity of the red sandstone decreases. The number of freeze-thaw cycles has a significant influence on the uniaxial compressive strength, elastic modulus, cohesion, and angle of internal friction. The evolution of permeability of the rock samples after cycles of freeze-thaw in a complete stress-strain process under triaxial compression is closely related to the variation of the microstructure in the rock. There is a highly corresponding relationship between volumetric strain and permeability with axial strain in all stages of the stress-strain behaviour.