Single-row cofferdam structure for riverside cast-in-place concrete pile revetment construction under uninterrupted navigation

The utility model discloses a single-row cofferdam structure for construction of a riverside cast-in-place concrete pile revetment under uninterrupted navigation, which comprises fender posts which are Larsen steel sheet piles and are arranged along the length direction of a riverside. A plurality of stiffening ribs which are arranged at intervals in the length direction of the river bank are formed on the inner sides, back on to the river center, of the fender posts; the enclosing purlin assembly is mounted at the upper end of the fender post; the backfill materials are supported on the inner sides of the fender posts, the backfill materials comprise a gravel layer and a plain soil layer, the gravel layer is laid on the river bottom on the inner sides of the fender posts, and the plain soil layer is laid on the gravel layer. The problems that a traditional double-row steel sheet pile cofferdam is adopted for wading operation along the river, the construction efficiency is low, and the influence on channel pa