Salt-thaw collapse prevention and treatment structure and construction device

The utility model discloses a salt-thaw collapse prevention structure and construction device, including: saline-alkali soil base, the prevention structure is laid on the saline-alkali soil base, the prevention structure includes the coarse-grained soil layer laid on the saline-alkali soil base, the coarse-grained soil layer and the saline-alkali soil base are subjected to replacement filling and compaction treatment, geogrids are laid on the coarse-grained soil layer, and the geogrids are laid on the coarse-grained soil layer. The geogrid is fixed to the coarse-grained soil layer and the saline-alkali soil foundation through a plurality of concrete piles, and a water seepage soil layer is laid on the geogrid. The prevention and control structure is used for preventing and controlling the salt-melt collapse situation possibly occurring in the saline-alkali soil, the collapse situation is guaranteed to be avoided through a specific laying structure, meanwhile, the auxiliary supporting effect can be achieved wh