Frost heaving prevention water guide structure for drainage channel in high-cold region

The frost heaving prevention water guide structure comprises a foundation pit, a horizontal drainage channel and a cohesive soil cushion layer, side slopes are arranged on the two sides of the foundation pit, the cohesive soil cushion layer is located at the bottom of the foundation pit, and the horizontal drainage channel is located on the cohesive soil cushion layer. The backfilling layer is used for backfilling a gap between the side slope and the side wall of the horizontal drainage channel; the curved-mesh permeable blind pipe is placed on the cohesive soil cushion layer and is parallel to the length direction of the horizontal drainage channel, the landfill layer sequentially comprises a loess bottom layer, a gravel middle layer and a fine sand top layer from bottom to top, the bottom of the curved-mesh permeable blind pipe is located in the loess bottom layer, the top of the curved-mesh permeable blind pipe is located in the gravel middle layer, and the top of the curved-mesh permeable blind pipe is lo