关键词: 雷诺护垫, 边坡防护, 冻土, 模型试验, 冻胀

Abstract: In this paper, model test was conducted on Renault pad protective engineering of trunk canal slope under frozen soil environment. The establishment of the scale was 1:4 model, twice frozen thaw test during the test of frost heave Renault pad segment surface structure, internal structure thaw process temperature distribution in real time. The results showed that: Renault pad can increase resistance, reduce energy transfer, and lying under the soil temperature field distribution pad, which can effectively reduce the amount of frost depth and frost, and suppress the occurrence of uneven frost heave; in there under sufficient water supply conditions, the maximum amount of frost occurs in the position at the channel bottom on solid feet, followed by 1/3 channel slope, the design should take full account of the position of frost heave deformation; maximum residual deformation in a solid channel bottom foot position, channel slope occurs thaw settlement, Renault pad structure itself has described self-healing function, adapt to freeze-thaw more significant effect of deformation. The design and construction process to be considered stable solid foot.

Key words: Renault pad, slope protection, frozen soil, model test, frost heave