PROJECT SPOTLIGHT
removed, the subsurface was dredged to
ship channel minus-52 elevation.
Drilling soil anchors
MB Western Industrial Contracting Co.
MB Western Industrial Contracting Co.
MB Western Industrial Contracting Co.
MB Western Industrial Contracting Co.
Civil, Piling & Marine Construction
Civil, Piling & Marine Construction
Civil, Piling & Marine Construction
Civil, Piling & Marine Construction
Safety, Quality, Experience & Value
Safety, Quality, Experience & Value
Safety, Quality, Experience & Value
Safety, Quality, Experience & Value
“Safety Drives Our Success”
“Safety Drives Our Success”
“Safety Drives Our Success”
Phone: 281-487-5757
www.mbwestern.com
“Safety Drives Our Success”
Phone: 281-487-5757
www.mbwestern.com
Phone: 281-487-5757
www.mbwestern.com
Phone: 281-487-5757
www.mbwestern.com
Prior to final berth construction,
test pile procedures were performed using
seven 24-inch concrete piles: four 117 feet
long; three 102 feet long. Test piles were
handled and driven with a 275-ton Terex
crane on a 180-foot by 54-foot barge.
Dynamic tests were performed on the
seven piles to verify load capacity followed
by a Statnamic test to determine the axial
compressive load. An explosive charge
was detonated in the Statnamic apparatus
equal to 880-kips. The pile displacement
was then measured and the deflection
versus static load curve was analyzed to
determine failure load.
Fifty-one six-pile bents using 24-inch
square, 92-foot long concrete piles were
installed between Berths 3 and 5 for
a length of 706 feet. The wharf was
expanded by 31 feet for a new width of 69
feet. The piles were set with a Manitowoc
4100 Ringer, 300-ton crane. The piles
were driven with a 165-ton American
crane with swinging leads and driven
with an ICE® I-46 diesel hammer capable
of 119,780-ft lbs, 35 to 52 blows/minute
with a ram weight of 10,141 lbs. The
24-inch prestressed concrete piles were
driven to a penetration resistance of 60
blows per ft. The piles were then cut off
to elevation to set the 51 prestressed concrete
caps. Three hundred and fifty deck
slabs will be placed on the concrete caps
after the contractor makes a small closure
pour connecting the prestressed caps to
the King Pile cap.
The new wharf work also includes a resilient
fender system, cathodic protection, a concrete
paving block surface with new railroad
ballast and tracks with new water and electrical
utilities and communication conduits. A
subcontractor will install the rail. t
Setting deck caps
Setting deck caps
102 | QUARTER 2 2016
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