Combined supporting structure for replacing supports by using basement structure and steel inclined supports

The utility model discloses a combined supporting structure utilizing a basement structure and a steel inclined strut to change a strut, which is positioned in a deep foundation pit and comprises a foundation slab, structural side walls, a backfilling structure and a supporting structure, the foundation slab is arranged at the bottom of the foundation pit, the structural side walls are arranged on the foundation slab and positioned on two sides of the foundation slab, and the backfilling structure is arranged on the foundation slab. The backfilling structure is located between the structural side wall and the supporting pile, the supporting structure is arranged between the structural side wall and the foundation bottom plate, and the backfilling structure and the supporting structure are located on the two sides of the structural side wall respectively. The embedded structure is embedded in the structural side wall and the foundation slab, the supporting rod is arranged through the embedded structure, a conc