Structural Manhole
Scope: This inspection program covers the normal fabrication operations of Manholes.
Shaft
Responsibility
Test Method
1
Mandrel OD
One per machine set-up
Q.C. Inspector
QW 12
2.
Pipe stiffness
Once per 300 m or once per day.
Mech. Prop. Inspection
QW 03
3.
Loss on Ignition
-ditto-
Mech. Prop. Insp.
QW04
4.
Pipe wall thickness
Each pipe end 4 pts 90 deg. apart
Micrometer
5.
Pipe cut length
Each manhole Pipe section
Steel Tape
6.
Internal Barcol Hardness
Each Pipe 3 pts 120 deg. apart
QW 13
Cones
Property
Frequency
Thickness
Each Cone
QW 18
100% visual
Each cone
Visual
Assembly
Overall length
Final Inspection
Marking
Each Manhole
