Multistage fortification anti-collision system based on novel combined material

The invention discloses a multistage fortification anti-collision system based on a novel combined material. The multistage fortification anti-collision system comprises a plurality of anti-collision units, the plurality of anti-collision units are arranged along the circumferential direction of a bridge pier, every two adjacent anti-collision units are fixedly connected, each anti-collision unit comprises a box body, one side of each box body is fixed to the surface of the bridge pier through a mounting support, a concave part is arranged on the other sides of the box bodies, a columnar deformation flexible body is arranged in the concave part, one part of the columnar deformation flexible body is embedded and fixed in the concave part, and the other part is exposed outside. According to the multistage fortification anti-collision system based on the novel combined material, the plurality of adopted anti-collision units are arranged in the circumferential direction around the bridge pier, and under the colli