Underground space waterproof structure

The utility model provides an underground space waterproof structure, which belongs to the technical field of underground space, and comprises a concrete base layer and a floor layer consisting of a plurality of sub-plates, and further comprises drainage units arranged on the concrete base layer and arranged to be used for supporting each corresponding sub-plate, the drainage units are located between the concrete base layer and the floor layer, stuffing is further arranged between the concrete base layer and the floor layer, and each daughter board is provided with a drainage hole communicated with the corresponding drainage unit; water entering the space between the concrete base layer and the floor layer enters the drainage unit before making contact with the floor layer. The utility model solves the problems that underground water cannot be discharged and soaks the floor and accumulated water on the ground cannot be discharged in time. 本实用新型提供一种地下空间防水结构，属于地下空间技术领域，包括：混凝土基层和由多个子板组成的地板层，还包括：设置在混凝土基层上并布置成用于支