IWM 2004 Tokyo, Japan Micropile Foundations Johnson City Medical Center Johnson City, Tennessee

transcript

Geotechnical Construction

IWM 2004IWM 2004Tokyo, JapanTokyo, Japan

Micropile FoundationsMicropile FoundationsJohnson City Medical CenterJohnson City Medical Center

Johnson City, TennesseeJohnson City, Tennessee

John R. Wolosick, P.E.John R. Wolosick, P.E.

Hayward Baker Inc.Hayward Baker Inc.

Atlanta, GeorgiaAtlanta, Georgia

Map of United StatesMap of United States

Southeastern United States

Johnson City Medical CenterJohnson City Medical Center

Reason for Micropiles: Karstic LimestoneReason for Micropiles: Karstic Limestone

Plan View Layout of Micropile Plan View Layout of Micropile FoundationsFoundations

143 Micropiles143 Micropiles

Test Pile and Reaction Pile LayoutTest Pile and Reaction Pile Layout

Load Test Frame and Reaction Load Test Frame and Reaction AnchorsAnchors

Running Load Test with InspectorRunning Load Test with Inspector

Johnson City Medical Center Minipiles 225 Kip Load TestJohnson City, TN

0 100 200 300 400 500 600

Load (Kips)

Test Data

Rebound Curve

Davisson Criteria

Design Load

Design Load225 Kips

Davisson Criteria

Load Test Results to 2.5 times DLLoad Test Results to 2.5 times DL

Production Production CompressioCompression Pile n Pile InstallationInstallation

CompressioCompression Pile n Pile ConfiguratioConfigurationn

Adding Adding Threaded Threaded Pipe Section Pipe Section with Drill with Drill Rig WinchRig Winch

Steel Pipe Casings for MicropilesSteel Pipe Casings for Micropiles

Reinforcing bars with CentralizersReinforcing bars with Centralizers

Bulk Cement and Portable Batch Bulk Cement and Portable Batch PlantPlant

Placing Placing ReinforcinReinforcing bar for g bar for bond zone bond zone

Elevator Shafts with Torsional Elevator Shafts with Torsional LoadingsLoadings

Elevator Elevator PitPitPile LayoutPile LayoutSection Section ViewView

CompressioCompression/Tension n/Tension Pile Pile ConfiguratioConfigurationnat Elevator at Elevator ShaftsShafts

Vertical Vertical Piles at Piles at Elevator Elevator ShaftsShafts

Battered Battered Pile Pile DrillingDrilling

More More Battered Battered Pile DrillingPile Drilling

Vertical and Battered Pile for Vertical and Battered Pile for TorsionTorsion

KR 701 for Low Headroom Pile KR 701 for Low Headroom Pile InstallationInstallation

The EndThe End

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