Dam concrete overflow surface rolling template device and construction process

The invention discloses a dam concrete overflow surface rolling template device. An overflow surface reinforcing steel bar is arranged in an overflow surface; the lower layer of the construction position is constructed first-stage concrete; comprising a track mechanism, and the bearing surface of the track mechanism has the same curvature with an overflow surface and is flush with the overflow surface; the track mechanism upwards bears the climbing mechanism through the rolling template mechanism; the rolling template mechanism comprises a track template structure, a rubber belt and a counterweight structure; the rubber belt serves as a rolling template and is used as a top template during concrete pouring of an overflow surface; the crawler formwork structure comprises a crawler formwork composed of a plurality of formwork pieces, and the crawler formwork is used for being matched with overflow faces with different curvatures. The invention further discloses a corresponding construction ...