Ballastless track temporary supporting structure and ballastless track deformation treatment method

The invention belongs to the technical field of track maintenance, and particularly provides a ballastless track temporary supporting structure which is characterized by comprising filling bags, supporting steel plates and track fasteners. The rail fastener is fixed on the top surface of the supporting steel plate; the filling bag is arranged on the bottom face of the supporting steel plate, and a pouring opening is formed in the filling bag. The device has the advantages of being efficient in installation, easy in quality control, good in structural stability, adjustable and the like, can be suitable for maintenance and repair of different ballastless tracks such as ballastless track cast-in-place track beds, prefabricated track beds and turnout zones, and can also be used for construction operations such as deviation and diversion of the ballastless tracks. The invention further provides a ballastless track deformation treatment method, the method is fast in construction and high in precision, a ballastless