Bank protection pile

A bank protection pile relates to the technical field of bank protection structures, and comprises a pile body with a triangular cross section; connecting parts are arranged on the two sides of each pile body, the connecting parts extend in the length direction of the pile bodies, when the multiple pile bodies are arranged, the adjacent pile bodies are connected through the connecting parts, separation can be prevented through connection of the connecting parts, and meanwhile the better leakage prevention effect can be achieved. By means of the principle of triangular stability, when the bank protection pile is impacted by strong water flow, the original state can be kept, and the problems that the upstream face of an existing bank protection pile is generally a plane or an arc-shaped face, does not have good compression resistance and pulling resistance and has strong stability are solved; the strength grade of concrete can reach C30, C40, C50, C60, C70, C80 or even higher, the leakage resistance can reach P