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

Claim 20:
21. The method of claim 20 further including after the shoring structure has been lifted upwardly toward the surface level and after separating the one of the one or more extension units from the shoring structure, but before removing a remainder of the shoring structure from the excavation:
(a) placing each of the at least two jacking devices within the volume of the shoring in their respective operating position;
(b) applying each respective extraction jacking force to the respective jack receiver arrangement to lift the remainder of the shoring structure upwardly toward the surface level; and
(c) after applying each respective extraction jacking force to the respective jack receiver arrangement to lift the remainder of the shoring structure upwardly toward the surface level and with the remainder of the shoring structure supported against substantial movement in a downward direction away from the surface level, filling in the excavation further with additional fill material in an area below the lower edge of the shoring structure.