Settlement control system suitable for deep soft soil foundation and use method of settlement control system

The invention designs a settlement control system suitable for a deep and thick soft soil foundation and a using method thereof.The settlement control system comprises spiral jacks, a foundation and a surface layer cover plate, the foundation is a strip-shaped foundation, the spiral jacks are arranged at the four corners of the strip-shaped foundation respectively, and the surface layer cover plate is arranged on the surface layer cover plate; a surface layer cover plate is arranged on the spiral jack, and a base plate is further arranged between the strip-shaped foundation and the surface layer cover plate. Jack placing holes are reserved in the four corners of the strip-shaped foundation respectively and comprise an upper shed rod rotating hole and a lower base placing hole, and the diameter of the upper shed rod rotating hole is larger than that of the lower base placing hole. Through the designed settlement control system, the differential settlement in the large-area range of the whole site is converted