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Shoring, Caisson Walls, Caissons, Underpinning

A crane mount drill, service crane and vibratory hammer were  all required to advance casing through difficult soil conditions.

A crane mount drill, service crane and vibratory hammer were all required to advance casing through difficult soil conditions.

Underpinning below footings of adjacent historical buildings.

Underpinning below footings of adjacent historical buildings.

Underpinning is installed in sequential panels to lower existing footing levels.

Underpinning is installed in sequential panels to lower existing footing levels.

Crane mount drill installing shoring in background.  Completed underpinning in foreground.

Crane mount drill installing shoring in background. Completed underpinning in foreground.

Caisson wall shoring system being trimmed below grade to act as a structural support for the future building above.

Caisson wall shoring system being trimmed below grade to act as a structural support for the future building above.