It is a new form of hollow floor slab cast in place with thin plastic box being used as inner formwork and has the advantages of easy construction, high hollowness and good economical benefit.

The in-situ concrete hollow floor plates by its unique superiority have been promoting and applying rapidly in the construction work.

An anti-floating construction method of a thin-walled hollow tube in a cast-in-place concrete hollow floor slab belongs to the technical field of residential construction.