Fabricated underground engineering buffer layer support structure

A fabricated underground engineering buffer layer support structure, comprising:

• a first structural plate, comprising a first surface and a second surface, wherein the first structural plate is connected to an initial support layer through the first surface;
• a second structural plate, comprising a third surface and a fourth surface, wherein the second structural plate is connected to a secondary lining layer through the fourth surface;
• a first buffering energy dissipation space is formed between the second surface and the third surface;
• and
• a flexible energy dissipation component arranged in the first buffering energy dissipation space, wherein the flexible energy dissipation component comprises a first plate prepared and formed by a plastic material, and a first porous lightweight material filled in the first buffering energy dissipation space and arranged on a periphery of the first plate in a wrapping manner;
• the first plate is of a wave shape;
• an outer wall of the first porous lightweight material is provided with first buffering energy absorption channels communicated with an interior of the first porous lightweight material, and when the first porous lightweight material is squeezed, gas inside the first porous lightweight material is squeezed and released through the first buffering energy absorption channels;
• and, the first structural plate, the flexible energy dissipation component, and the second structural plate form an integrated first structural body.