Vertical separable integrated supporting system suitable for circular foundation pit

The invention discloses a vertical separable integrated supporting system suitable for a circular foundation pit. The vertical separable integrated supporting system comprises a plurality of layers of horizontal truss frame supports, the layers are connected through mechanical buckles, and a plurality of active horizontal supporting devices are uniformly distributed on the outer ring of each layer of horizontal truss frame support; each layer of horizontal truss frame support comprises a plurality of standard truss sections and connecting sections which are connected in a circular ring shape; a lifting mechanism is connected to the horizontal truss frame support on the bottommost layer; and a control monitoring system comprises a monitoring device mounted on the horizontal truss frame support and a main control device for controlling and connecting the monitoring device, the active horizontal support device and the lifting mechanism. According to the vertical separable integrated supporting system, a traditio