ASCE OC Geo-Institute Luncheon - ARTIC: Anaheim Regional Transportation Intermodal Center September 2016
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The ASCE-Orange County Geo-Institute (GI) hosted a luncheon on August 16, 2016 at the University of California, Irvine (UCI) University Club. The luncheon consisted of a presentation on the geotechnical design aspects of the Anaheim Regional Transportation Intermodal Center (ARTIC) project. ARTIC is a uniquely designed public transportation facility in Anaheim, California that provides rail, bus, taxi and other services for daily commuters, visitors, and leisure travelers. The presentation was given by Mr. Allen Yourman, PE, GE, who is a Principal Engineer and co-founder of Diaz●Yourman & Associates, Inc. in Santa Ana, California.
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ASCE OC Geo-Institute Luncheon - ARTIC: Anaheim Regional Transportation Intermodal Center September 2016
- 1. ARTIC: Anaheim Regional Transportation Intermodal Center Allen Yourman, PE, GE Principal, DiazYourman & Associates
- 2. 1 Project Introduction 2 Project Improvements 3 Site Conditions 4 Foundation Alternatives 5 Selected Foundation AGENDA
- 3. VICINITY MAP
- 4. • City of Anaheim • Orange County Transit Authority • Caltrans • FTA • Metrolink • Amtrak • CA High Speed Rail Authority • OC Water District • Greyhound • Megabus.com • Anaheim Transportation Network • Los Angeles Angels of Anaheim • Honda Center • Anaheim Convention Center • Design Team: • Civil Engineer: Parsons Brinckerhoff • Architect: HOK • MEP, Enclosure Eng.: BuroHappold • Structural Engineer: Thorton Tomasetti • Geotechnical Engineer: Diaz·Yourman & Associates • Construction Manager: STV • General Contractor: Clark Construction • Ground Improvement Contractor: Hayward Baker • Inspection: Group Delta STAKEHOLDERS & PROJECT TEAM
- 5. Project Improvements • Main Terminal Building • Concourse Bridge • Service Yard Building • Two Tunnels • Widening of Douglass Road Railroad Bridge • Retaining Walls • Street Widening and Parking Lots
- 6. Main Terminal Building and Concourse Bridge • Main Terminal • 48,000 square foot footprint • 117-foot high • 350 to 1,350 pounds per square foot mat foundation loads • Basement level (eliminated during design) • Concourse Bridge • Approximately 300 feet long • 70- to 1,100-kip foundation loads
- 7. GeologicMap
- 8. Fault Map
- 9. Peak Ground Acceleration Improvement Agency PGA Terminal Building California Building Code 0.37g Pedestrian Concourse Bridge Caltrans 0.48g 0.21g Serviceability 0.37g Ultimate 0.58g Survivability Overpass Bridge AREMA
- 10. Site Plan
- 13. Site Plan
- 16. Site Conditions • Undocumented fill, ranging from approximately 5 to 20 feet thick • Upper 20 feet of soils - loose to dense sands, including the undocumented fill • 20 to 35 feet bgs - loose to dense sands and low- plastic silts; loose sands and low-plastic silts are potentially liquefiable • 35 to 85 feet bgs - soft to very stiff clays, some gravel layers • Below 85 feet bgs - very dense sands and gravels • Groundwater - 24 to 85 feet bgs; HHGW = 20 feet bgs
- 17. Key Geotechnical Issues • Undocumented fill - 5 to 20 feet thick • Relatively high seismic setting • Seismic induced settlement • Range of 1 to 7 inches • Average of 3 inches • Liquefaction induced lateral spreading - 3 inches • Groundwater flooding from the Santa Ana River
- 18. Foundation Alternatives • Shallow spread foundation without ground improvement • Mat foundation without ground improvement • Cast-in-drilled-hole piles (CIDH) • Deep driven piles • Shallow spread foundation with ground improvement • Mat foundation with ground improvement
- 19. Ground Improvement Alternatives • Removal and replacement • Jet Grouting • Vibro Methods (stone columns) • Deep soil mixing (DSM) • Deep dynamic compaction (DDC)
- 20. Selected Foundation/Ground Improvement • Terminal Building - Mat foundation with DDC ground improvement • Concourse Bridge - 3.5- and 10-foot- diameter CIDH • Service Yard Building - Shallow footing with MSE composite raft • Douglass Bridge – 2-foot-diameter CIDH
- 21. Selected Foundation/Ground Improvement • Main Terminal Building • Mat foundation with DDC ground improvement • Static settlement improvement for undocumented fill and loose/soft natural soils • Seismic settlement reduction • Concourse Bridge • 3- to 10-foot diameter CIDH piles • Small differential settlement • Resists lateral spreading
- 22. Deep Dynamic Compaction Zone of major densification ~2/3 of effective depth Effective Depth Courtesy of Hayward Baker, Inc.
- 23. Courtesy of Hayward Baker, Inc. Deep Dynamic Compaction
- 24. DDC Ground Improvement • Compaction • Weight of pounder - 29 tons • Drop height - 83 feet • Spacing between drop points - 12 feet • Drops per point - 6 • Number of passes - 2 • Ironing • Weight of pounder - 11 tons • Drop height - 50 feet • Spacing between drop points - 6 feet • Drops per point - 2 • Number of passes - 2
- 25. Maximum and Effective Depths of DDC
- 28. Test Area Post DDC Pre DDC DYC 13-11 DYC 13-14
- 29. Test Area Pre and Post DDC CPT
- 30. Production Values Post DDC CPT
- 31. Test Area Pre and Post DDC SPT
- 32. North East View
- 33. Foundation Bearing Pressures for Terminal Building
- 41. ARTIC: A R T I C I N F O . C O M
- 42. Cast-in-drilled-hole Piles (CIDH) Concourse Bridge • 10 foot diameter, 90 feet long • 1,100 kip load demand • 3.5 foot diameter, 90 to 100 feet long • 70 kip load demand