Anti-liquefaction rigid-flexible composite retaining wall based on high polymer material and construction method of anti-liquefaction rigid-flexible composite retaining wall

The invention provides an anti-liquefaction rigid-flexible composite retaining wall based on a high polymer material and a construction method. The composite retaining wall comprises a rigid retaining wall body, a buffer layer, a side anti-liquefaction structure, an inverted filter layer and an ecological blanket. The rigid retaining wall body is located on one side of the buffer layer, the side anti-liquefaction structure and the inverted filter are sequentially arranged on the side, away from the rigid retaining wall body, of the buffer layer, and the ecological blanket is arranged on the side, away from the buffer layer, of the rigid retaining wall body. The construction method comprises the construction steps of construction preparation, construction of the water absorption piles, construction of the gravel cushion layer, construction of the rigid retaining wall body, construction of the buffer layer, construction of the side anti-liquefaction structure, construction of the inverted filter layer, construc