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One Corps Serving the Armed Forces and the Nation
Mel Price Locks & Dam Miter Gate Inspections
Navigation Lock and Dam Inspection and Emergency Repairs Workshop 18 - 20 April 2006
One Corps Serving the Armed Forces and the Nation
Navigation Lock and Dam
Inspection
and Emergency Repairs Workshop 18 - 20 April 2006
One Corps Serving the Armed Forces and the Nation
3 October 2004 – Auxiliary LockDownstream Miter Gate
One Corps Serving the Armed Forces and the Nation
Auxiliary Lock Downstream Miter Gate
One Corps Serving the Armed Forces and the Nation
FLO
W
IL LEAF MO LEAF
Leafs Forced Downstream FromNormal Mitered Position
One Corps Serving the Armed Forces and the Nation
Initial Inspection
• Determine scope of damage
• Gather “forensic evidence”
One Corps Serving the Armed Forces and the Nation
Overall Distortion – Approximately 2 Feet
One Corps Serving the Armed Forces and the Nation
Local Damage – Miter Ends
One Corps Serving the Armed Forces and the Nation
Damage to Gate Anchorages
Secondary Anchorage
Primary Anchorage
One Corps Serving the Armed Forces and the Nation
Primary Anchorage
Fatigue
One Corps Serving the Armed Forces and the Nation
Secondary Anchorage
Deflection
One Corps Serving the Armed Forces and the Nation
Miter Block – IL Leaf
One Corps Serving the Armed Forces and the Nation
Timber Fender – MO Leaf
One Corps Serving the Armed Forces and the Nation
Miter Block – IL Leaf
One Corps Serving the Armed Forces and the Nation
Diagonal Failure - Buckled
One Corps Serving the Armed Forces and the Nation
Cracked Gusset – IL Leaf
One Corps Serving the Armed Forces and the Nation
Cracked Gusset – MO Leaf
One Corps Serving the Armed Forces and the Nation
Failed Operating Struts
One Corps Serving the Armed Forces and the Nation
Operating Arm Failure Tube
Failure Bolts(compression)
One Corps Serving the Armed Forces and the Nation
Operating Strut Failure – IL Leaf
Failure Bolts (compression) Intact
Fractured Strut(tension)
One Corps Serving the Armed Forces and the Nation
Failure Bolt(compression)
Fractured Strut(tension)
Operating Strut Failure – MO Leaf
One Corps Serving the Armed Forces and the Nation
Failed Operating Strut
One Corps Serving the Armed Forces and the Nation
Impact Marks
One Corps Serving the Armed Forces and the Nation
Impact Marks
One Corps Serving the Armed Forces and the Nation
Gouged Operating Strut
One Corps Serving the Armed Forces and the Nation
Failure Tube Bolts
One Corps Serving the Armed Forces and the Nation
Inspection of Leafs
On GateBarge
One Corps Serving the Armed Forces and the Nation
Surveying Leaf
One Corps Serving the Armed Forces and the Nation
Survey Results – Illinois Leaf
2’
1’
1.5’
0.5’
2.21’ max deflection
One Corps Serving the Armed Forces and the Nation
Survey Results – Missouri Leaf
1.6’ max deflection
One Corps Serving the Armed Forces and the Nation
Manliftfor
Inspection
One Corps Serving the Armed Forces and the Nation
InspectionFrom
Manlift
One Corps Serving the Armed Forces and the Nation
Deformed Diaphragms
Over 2” In Some Locations
(most ½” orless)
One Corps Serving the Armed Forces and the Nation
Inspections - Leafs Horizontal
One Corps Serving the Armed Forces and the Nation
Leafs In Horizontal Position
One Corps Serving the Armed Forces and the Nation
Crack at Diaphragm Flanges
One Corps Serving the Armed Forces and the Nation
Crack in Girder Flanges
One Corps Serving the Armed Forces and the Nation
Torch Cut Hole in Girder Flange
One Corps Serving the Armed Forces and the Nation
Inspection of Repairs
One Corps Serving the Armed Forces and the Nation
UT Inspection of Diagonal Gusset
One Corps Serving the Armed Forces and the Nation
UT Inspection of Diagonal Gusset
One Corps Serving the Armed Forces and the Nation
Welding Strut Arm at Service Base
One Corps Serving the Armed Forces and the Nation
MT Inspection of Strut Arm at Shop
One Corps Serving the Armed Forces and the Nation
UT Inspection of Strut Arms
One Corps Serving the Armed Forces and the Nation
UT Inspection of Strut Arms
One Corps Serving the Armed Forces and the Nation
UT Testing Of Repaired Cracks
One Corps Serving the Armed Forces and the Nation
Diagonal Modification
One Corps Serving the Armed Forces and the Nation
Lower Diagonal Gusset
One Corps Serving the Armed Forces and the Nation
Stress Relieving Diagonal Gusset
One Corps Serving the Armed Forces and the Nation
Top End of Diagonal
One Corps Serving the Armed Forces and the Nation
Bottom End of Diagonal
One Corps Serving the Armed Forces and the Nation
Bottom End of Diagonal
Undercut
One Corps Serving the Armed Forces and the Nation
Gudgeon Hood Casting
One Corps Serving the Armed Forces and the Nation
Casting Weld Repair Defect
One Corps Serving the Armed Forces and the Nation
Stay Tuned…………….
Mel Price Lock and DamMiter Gate Inspections
One Corps Serving the Armed Forces and the Nation
Inspections - Other Projects
One Corps Serving the Armed Forces and the Nation
Locks 27 - Miter Gate Inspections and Instrumentation
One Corps Serving the Armed Forces and the Nation
Locks 27 – Auxiliary Lock Miter Gate
One Corps Serving the Armed Forces and the Nation
Cracks in Girder Flanges
One Corps Serving the Armed Forces and the Nation
Sill
VerticalDiaphragms
BottomGirder
Designed as horizontallyframed
One Corps Serving the Armed Forces and the Nation
Instrumentation of Typical Connection
One Corps Serving the Armed Forces and the Nation
Diaphragm Flange
Girder Flange
Strain Transducer
One Corps Serving the Armed Forces and the Nation
Lock 27 - Aux Lock - Illinois Leaf - 23 Aug 01 - Test 2
-3
-2
-1
0
1
2
3
4
5
6
7
8
0 200 400 600 800 1000 1200 1400 1600 1800
Time (sec)
Str
ess
(ksi
)
Diaphragm Flange Stress
Girder Flange Stress
Instrumentation Results
Stresses Higher in Diaphragm
One Corps Serving the Armed Forces and the Nation
Lock 27 Miter Gate Instrumentation Results
Diaphragm
• Flange 8 ksi T
• Web 4 ksi T
Girder
• Flange 7 ksi T
• Web 3 ksi C
One Corps Serving the Armed Forces and the Nation
Locks 27 - Main Lock – Jan 2003
One Corps Serving the Armed Forces and the Nation
Locks 27 - Main Lock – Jan 2003Failed Diagonal Rods
One Corps Serving the Armed Forces and the Nation
Why are rods failing?1) Cyclic loading (beach marks = fatigue)2) Bending (Unidirectional - beach marks on one side)
One Corps Serving the Armed Forces and the Nation
Instrumentation of Diagonals
One Corps Serving the Armed Forces and the Nation
Instrumentation on Diagonals
One Corps Serving the Armed Forces and the Nation
Instrumentation Results
One Lockage = Many Cycles
One Corps Serving the Armed Forces and the Nation
Rope Access Inspections
• Tainter gates at flood control projects
• Tainter gates at navigation project
• Dam bulkheads
• Miter gates
One Corps Serving the Armed Forces and the Nation
Clarence Cannon Dam
Spillway and Tainter Gates
One Corps Serving the Armed Forces and the Nation
Locks 27 Miter Gate
One Corps Serving the Armed Forces and the Nation
Kaskaskia L&D Tainter Gate
One Corps Serving the Armed Forces and the Nation
Carlyle Dam Tainter Gate
One Corps Serving the Armed Forces and the Nation
Questions?