The invention relates to a high fill
composite structure retaining wall, which relates to the technical field of ecological protection, and comprises a high fill soil body, a wall body main body is fixed on the left side of the high fill soil body, a
vegetation mechanism is arranged on the wall body main body, and an inverted filter drainage layer used for preventing fine
particle loss and guiding water is fixed between the high fill soil body and the wall body main body. According to the high fill combined structure
retaining wall, the inclined planting holes penetrating through the wall body main body, the inverted filter drainage layer and the high fill soil body are formed, and the
root system suction layer, the improved soil dressing and the
water retention type planting matrix are sequentially arranged in the holes, so that
plant root systems are effectively guided to actively penetrate through the
rigid wall body to enter the deep fill soil body, and the
living body reinforcement effect is formed; compared with a traditional
vegetation bag or a spray-seeding layer only attached to the surface, the structure enables root systems of herbaceous plants, shrubs and vines to be interwoven in a filling body in a three-dimensional mode, the
shear strength and the overall stability of a soil body are remarkably improved, and the problems that an existing ecological protection face is prone to degradation and short in function are thoroughly solved.