Construction sequence and construction method for foundation pit slope

The invention discloses a construction sequence and a construction method for a foundation pit slope. The construction method comprises the following steps: earth excavation for the pit slope is carried out in a layering and sectioning manner, each layer is excavated downwards 2.5m from the original ground, a steel support part is excavated to reach a part 500mm away from the bottom of the layer of steel support, the excavation sequence is from east to west and from top to bottom, and the excavation is carried out in the layering and sectioning manner, and meanwhile, the corresponding waist beam and steel support construction working is carried out; the excavation principle is vertical layering, longitudinal sectioning, and middle grooving excavation; the earth excavation is carried out inthe layering and sectioning manner, the excavation sequence is from east to west and from top to bottom, and the excavation is carried out in the layering and sectioning manner, and meanwhile, the corresponding waist beam an