Prefabricated sheet pile combined bank revetment and construction method thereof

The invention relates to a prefabricated sheet pile combined bank revetment and a construction method thereof. The prefabricated sheet pile combined bank revetment comprises a plurality of PC wall body piles, a plurality of groups of prefabricated slabs, grouting material and top beams, wherein the PC wall body piles are arranged at intervals along a bank slope; grooves are formed in opposite sidefaces of every two adjacent PC wall body piles; the two ends of each group of prefabricated slab are inserted in the grooves of every two adjacent PC wall body piles; the grouting material is filledbetween the two end parts of each prefabricated slab and the grooves; the top beams are formed at the tops of the PC wall body piles and the prefabricated slabs; each of the prefabricated slabs is formed through assembling a plurality of splice plates; a splice groove is formed in the upper side face of each of the splice plates; and a splice bulge is formed on the lower side face of each of the splice plates. The prefabri