TheoreticalVolume of

Shaft

55 yds3

42.0 m3

2-D Wire Frame

SoniCaliper

Illustration

Protrusion - due to

“chasing” boulder through

construction process

Symmetrical Steel

Casing

Bottom of Casing

2-D Wire Frame

SoniCaliper

IllustrationBottom of Casing

CAD Image

Actual PouredVolume of

Shaft

134 yds3

102.5 m3

EstimatedVolume of Shaft by

SoniCaliper

132 yds3

100.9 m3

TheoreticalVolume of

Shaft

55 yds3

42.0 m3