Patent ID: 11879224
Assignee: ROUND SHIELD LLC
Field: Civil engineering (Other fields)
Classification: CPC E | IPC E

Claim 14:
15. A method including:
(a) excavating an area within a first excavation perimeter to produce a first excavation volume having a first excavation depth from a surface level;
(b) lowering a base unit into the first excavation volume, base unit defining a base unit wall that extends in a height direction from a base unit lower edge to a base unit upper edge and defining a base unit central axis extending in the height direction, the base until wall also having a base unit wall inner surface defining a volume of the base unit and a base unit wall outer surface facing way from the volume of the base unit, wherein lowering the base unit into the first excavation volume places the base unit lower edge proximate to a bottom surface of the first excavation volume;
(c) with the base unit remaining in the first excavation volume, excavating within the first excavation perimeter further to produce a second excavation volume having a second excavation depth from the surface level greater than the first excavation depth;
(d) connecting at least one extension unit to the base unit while at least a portion of the base unit remains in the first excavation volume, each extension unit defining a respective extension unit wall extending in the height direction from a respective extension unit lower edge to a respective extension unit upper edge and defining a respective extension unit central axis extending in the height direction, each respective extension unit wall also having a respective extension unit wall inner surface defining a volume of the respective extension unit and a respective extension unit wall outer surface facing way from the volume of the respective extension unit, connecting the at least one extension unit to the base unit forming a shoring structure having a vertical exterior surface defined by the base unit wall outer surface and the respective extension unit wall outer surface of each of the at least one extension units with each respective extension unit central axis aligned with the base unit central axis to form an assembly central axis;
(e) with the base unit connected to the at least one extension unit and with the base unit remaining in the second excavation volume, excavating within the first excavation perimeter to produce a third excavation volume having a third excavation depth from the surface level greater that the second excavation depth; and
(f) with the base unit residing at least partially in the second excavation volume or third excavation volume, applying an installation jacking force to the shoring structure to force the shoring structure further into the third excavation volume.