Hydraulic engineering slope protection supporting structure

The utility model relates to the technical field of water conservancy project slope protection, in particular to a water conservancy project slope protection supporting structure which comprises a plurality of brick bodies which are evenly distributed, the brick bodies are in a hollow hexagonal prism barrel shape, frustum-shaped forming grooves are formed in the outer side walls of the brick bodies, and cylindrical grooves are formed in the lower bottom faces of the brick bodies. A collecting and distributing pipe cavity, a material injection pipe cavity, a first branch pipe cavity, a second branch pipe cavity and a ventilation pipe cavity are formed in the brick body, the upper end of the collecting and distributing pipe cavity is connected with the material injection pipe cavity, the upper end of the material injection pipe cavity extends out of the brick body, and a plurality of first branch pipe cavities which are evenly distributed are annularly formed in the lower end of the collecting and distributing