Excavation bucket for lower column pier of post-cast strip

The utility model discloses an excavation bucket for a post-cast strip lower column pier, and belongs to the technical field of building foundation earth excavation. The bucket bottom of the excavator bucket comprises a bucket bottom plate, a bucket rear bottom plate and a bucket rear upper plate which are connected in sequence; the bucket side part comprises a bucket side front wing plate, a bucket side rear wing plate and a bucket side upper wing plate which are connected in sequence; the side portion of the bucket side front wing plate is connected with the side portion of the bucket bottom plate, and the included angle between the side edge of the bucket side front wing plate and the bucket bottom plate is 45 degrees. The bucket side rear wing plate is connected with the bucket rear bottom plate, and the included angle between the bucket side rear wing plate and the bucket rear bottom plate is 130-135 degrees; the bucket side upper wing plate is connected with the bucket rear upper plate, and the included