Study on the Mechanism and Effect of a Partition Wall Controlling Foundation Pit Deformation in the Soft-Soil Area

Table 2

Main excavated conditions of the foundation pit.

Working condition	The construction content	Excavation depth
I	Initial geostress	—
II	Construction of retaining structure and partition wall	—
III	1 m excavation, set up the first concrete support	1 m
IV	The first layer of soil excavation, set up a second steel support	4 m
V	The second layer of soil excavation, set up a third steel support	4 m
VI	The third layer of soil excavation, set up the fourth steel support	4 m
VII	The fourth layer of soil excavation, excavation to the end	4 m