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MACROPILES TM : Ultra-High- Capacity Micropiles for Foundation - - PowerPoint PPT Presentation
MACROPILES TM : Ultra-High- Capacity Micropiles for Foundation - - PowerPoint PPT Presentation
MACROPILES TM : Ultra-High- Capacity Micropiles for Foundation Support John R. Wolosick, P.E. Hayward Baker Inc., Atlanta, Georgia USA ISM International Society for Micropiles May 4, 2006 Schrobenhausen, Germany Atlanta Hartsfield
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12 inch Diameter Outer Pipe
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Double Reaction Beam Set-Up
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Independent Reference Frame
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FHWA Minipile Load Test
Hartsfield Int'l Airport Atlanta, GA 0.000 0.200 0.400 0.600 0.800 1.000 1.200 1.400 0.0 200.0 400.0 600.0 800.0 1000.0 1200.0
Load (Tons)
Deflection (Inches) Test #1 Data Rebound Curve 2 Design Load Test #2 Data Rebound Curve 2
Design Load 400 Tons
1.277
0.916
0.258 0.340
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Jackson Avenue & 47th Avenue Long Island City, Queens, NY August, 2005
Installation of 29 Macropiles reduced foundation installation from 100 Micropiles 750 Ton working axial capacity 18 inch (450 mm) OD steel pipe, 6 #20 (64 mm) Grade 80 Steel bars, 6000 psi (41,350 kPa) cement grout
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Section View
- f Macropiles
and Pile Cap
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Section View of Macropile Reinforcement
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High Strength Cages with Tremie Tubes
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Reinforcing Cage and Tremie Details
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Setting Reinforcing Cage with Crane
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Reinforcing Cage within Casing
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Bearing Plates:
30 inch x 30 inch (760 mm x 760 mm)
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Chelsea Arts Tower New York, NY February, 2005
22 Story Condominium Structure 27 Macropiles installed Diameters were 12, 18, 24 inch (305, 450, 610 mm) Design (Working) Loadings were up to 1400 Tons compression and 225 Tons tension!
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Section View
- f Macropiles
and Pile Cap
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Section View of Macropile Reinforcement
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MACROPILE DESIGN LOADS
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Macropile Layout
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Reinforcement Design for 1400 Ton Macropile Plan View Layout for Macropiles
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Flushing out a rock socket prior to Macropile installation
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Assembly of Macropile Reinforcing Cage
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Setting Reinforcing Cage with Crane
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Setting Reinforcing Cage on a Snowy Day
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