Mortise and tenon joint concrete combined profile for water conservancy building

The utility model relates to a tenon-and-mortise concrete combined profile for a water conservancy building, which comprises a main body and a tenon-and-mortise, the main body is in a fixed-length strip shape, the tenon-and-mortise is arranged on one side or two sides of the main body, and the width of the main body is equal to or multiplied with the width of the tenon-and-mortise; the mortise and tenon joint is provided with a semicircular hole in the center of the length of a lock tenon arranged on one side line or two side lines of the section bar main body, and an anchoring hole for a special lock bolt to be inserted is formed when the mortise and tenon joints of the two section bars are interlocked and spliced. When the combined section bar with the mortise and tenon joint structure is applied to the existing water conservancy project, through mortise and tenon joint dislocation splicing in various forms such as corresponding crossing, dislocation, symmetry, overlapping and the like, an all-dimensional t