First, slope slope protection includes:

1. Plant protection: planting grass, laying turf, planting trees.

2. Engineering protection (mineral protection): frame protection, cover, protective wall, dry sheet stone slope protection, pulp sheet stone slope protection, pulp precast block slope protection, bolt steel wire mesh spraying, shotcrete slope protection.

2. Conditions for the application of various protective projects

(1) Plant protection

1. Grass protection: It is suitable for embankments and cutting slopes where the slope is stable, the slope is slightly washed by rain, and it is easy for grass to grow. Grass species with well-developed roots, low leaf stems, multi-year growth and suitable for local soil and climatic conditions were selected and planted in a 1000px (topsoil thickness ≥ 500px when no cooked soil) topsoil layer. The sowing methods include spreading method, spraying method and row planting method. The two new methods currently being used are wet spraying technology and guest soil spraying technology.

2. Laying turf: suitable for soil slopes that need rapid greening. There are four forms of turf slope protection paving: tiling, stacking, square format and egg (piece) stone square format.

3. Planting shrubs: used in conjunction with planting grass and laying turf to form a good protective layer on the slope, suitable for soil slopes and expansive soil slopes, but it is not suitable for saline soil often flooded and often arid slopes and silty soil slopes. Shrubs should be planted on slopes of 1:1.5 or less, or on river beaches along embankments, to reduce flow velocity and promote siltation.