Design method for fixed tower crane foundation for open caisson construction

The invention discloses a design method for a fixed tower crane foundation for open caisson construction, and relates to the technical field of engineering construction. A bearing platform, a fast adjusting type perpendicularity adjusting mechanism, a #-shaped bottom frame and a mounting lug frame are matched to complete perpendicularity adjustment of the fixed tower crane foundation for open caisson construction, the fast adjusting type perpendicularity adjusting mechanism is mounted on the bearing platform, and the #-shaped bottom frame is mounted on the fast adjusting type perpendicularity adjusting mechanism through a telescopic compensation piece. Mounting lug frames are arranged at the four corners of the upper portion of the #-shaped bottom frame, the quick adjusting type perpendicularity adjusting mechanism comprises four bearing screws which are arranged on the bearing table in a rectangular shape, a mounting table is fixedly connected to the upper end face of the bearing table and located between th