Automatic accurate adjustment system for open bridge floor sleeper slab type rail structure on steel truss beam, and accurate adjustment method

The invention discloses an automatic accurate adjustment system for an open bridge floor sleeper slab type rail structure on a steel truss beam. The system is characterized in comprising a rail geometrical state detector (1), three-way jacks (7) and jack control systems (8), wherein the rail geometrical state detector (1) is arranged on and walks on a steel rail (2) and is used for measuring a roughly laid rail structure and collecting the geometrical form and position information of the rail structure; a plurality of three-way jacks (7) are arranged between a sleeper slab (4) and each steel truss beam sidewalk (6); and under the synchronous actuation of the jack control systems (8), the geometrical form and position of the sleeper slab (4) is accurately adjusted in the vertical direction,the longitudinal direction and the horizontal direction of the rail. By use of the system, the problems of low accurate adjustment efficiency, a small adjustment amount, a large workload and the likeof the existing sleeper s