Micropiles - Design Parameters Interpreted from 280 Load Tests, Dr ...

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‣Project Project Overview Outline ‣Micropile Micropile Characteristics ‣Verification Testing ‣Proof Proof Testing ‣Interpretation of Load Tests ‣Interpreted Bond Values ‣Conclusions
Introduction ‣ Project Owner: New Jersey Turnpike Authority ‣ Structural Designer: Fay, Spofford & Thorndike (FST) ‣ Geotechnical Engineer: Matrix ‣ Inspection: Greenman-Pedersen, Inc. (GPI) ‣ Micropile Contractor: PKF Mark III ‣ Schnabel retained by PKF as Geostructural Consultants
Page 1: Hollow Core Bar Micropiles at the N
Page 5 and 6: Location Bridge 7.85 Bridge 0.42L
Page 7 and 8: Existing Conditions
Page 9 and 10: Retrofit of Existing Foundation
Page 11 and 12: Bridge 7.85 (80 Micropiles) P2 P1
Page 13 and 14: Micropile Characteristics ‣ Desig
Page 16: Micropile Observation ‣ Drilling
Page 23: Proof Load Testing ‣ 100% of micr
Page 30 and 31: Proof Test Summary- Sand 0.0 Load (
Page 32 and 33: Load Test Interpretation τ α ∆
Page 34 and 35: Load Test Interpretation ‣ Applie
Page 36 and 37: Bond Values in Stiff Silty Clay 14
Page 38 and 39: Closure ‣ Ultimate bond strength
Page 42 and 43: Verification Tests in Sand

Micropiles - Design Parameters Interpreted from 280 Load Tests, Dr ...

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