ARTIC: Anaheim Regional Transportation Intermodal Center

Allen Yourman, PE, GE

Principal, DiazYourman & Associates

1 Project Introduction 2 Project Improvements 3 Site Conditions 4 Foundation Alternatives 5 Selected Foundation

AGENDA

VICINITY MAP

• 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

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

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

Geologic Map

Fault Map

Peak Ground Acceleration

Improvement Agency PGA

Terminal BuildingCalifornia Building

Code0.37g

Pedestrian Concourse Bridge Caltrans 0.48g

0.21g Serviceability

0.37g Ultimate

0.58g Survivability

Overpass Bridge AREMA

Site Plan

Site Plan

Cross Section A-A’

Cross Section C-C’

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

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

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

Ground Improvement Alternatives

• Removal and replacement • Jet Grouting • Vibro Methods (stone columns) • Deep soil mixing (DSM) • Deep dynamic compaction (DDC)

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

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

Deep Dynamic Compaction

Zone of major densification ~2/3 of effective depth

Effective Depth

Courtesy of Hayward Baker, Inc.

Courtesy of Hayward Baker, Inc.

Deep Dynamic Compaction

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

Maximum and Effective Depths of DDC

Test Area

Post DDC

Pre DDC

DYC 13-11

DYC 13-14

Test Area Pre and Post DDC CPT

Production Values Post DDC CPT

Test Area Pre and Post DDC SPT

North East View

Foundation Bearing Pressures for Terminal Building

Static Settlement Contour on Mat Foundation

ARTIC: A R T I C I N F O . C O M

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

Thank You!

Questions?