Experiment on Vegetation Grass Blanket Bank Slope Protection Material for Scour Resistance and Soil Conservation

The anti-current scour mode and the erosion characteristics of the underlying soil body of the vegetation grass blanket bank slope protection material under the combined conditions of typical flow and water level were studied in indoor water flume experiment. The results of the study show that the damage of the vegetation grass blanket material mainly occurs under the condition of large flow, and the lower the water level is, the greater the possibility of material damage will be, mainly reflected by the pulled-out fixed steel nails and the floating materials. Compared with the bare soil bank slope, the vegetation grass blanket material has a certain protective effect on the underlying soil. Soil erosion starts at the point of initial contact between the grass blanket and the soil, and gradually spreads to a larger area in the shape of a fan in the point-to-area mode.