Karst cave processing structure used for underground cavities

The utility model discloses a karst cave processing structure used for underground cavities. The karst cave processing structure is characterized in that a bottom plate (1) of a concrete structure is arranged outside a hole in the upper portion of a karst cave (3) and covers the hole of the karst cave (3), grid hidden beams (2) are arranged in the bottom plate (1), and the bottom plate (1) and the grid hidden beams (2) form an integrated structure. The grid hidden beams of a #-shaped structure are arranged in the bottom plate, and therefore loads on the upper portion of the bottom plate can be effectively transmitted to the reliable foundation outside the area of the karst cave, and the requirement for the foundation bearing capacity within the range of the bottom plate of the karst cave is lowered. The karst cave processing structure is simple in structure, economic and feasible, and has wide application prospects.