Jacking stroke control method for slip-form construction of charging silo

The invention relates to a material silo slip-form construction jacking stroke control method, which comprises six steps of erecting a lifting main body, installing a positioning device, pouring bottom layer concrete, pouring upper layer concrete, pouring to an elevation, and dismantling the lifting main body and the positioning device, the positioning device comprises a telescopic rod and a positioning assembly, and the positioning assembly is provided with a fixing clamp. The positioning device is adopted for controlling the jacking stroke of slip form construction, the lifting height of each time of the fixing clamp is positioned through the telescopic rod, and then the lifting height of each time of the slip form jack is controlled through the fixing clamp, so that the lifting heights of each time of the slip form can be kept consistent; and in each lifting process, the lifting heights of all the slip forms can be kept consistent, so that the accurate control of the jacking stroke of slip form constructio