The underground engineering and construction industries rely heavily on past experience and new technologies. It is our philosophy that we can best serve our clients by contributing to this experience base through active participation in professional organizations and by publishing technical and management papers in various industry forums. We are pleased to offer a selection of our published papers, and welcome your feedback and exchange of ideas.
| Assessment and Implementation of Rock Slope Support Measures Beneath the Golden Gate… |
2011 |
| Baseline Ground Settlement and Groundwater Monitoring for Tunnelling – A Case Study… |
2011 |
| Cal Park Tunnel Rehabilitation Project |
2011 |
| Challenges and Success of the Cutter Soil Mixing Method for Tunneling Shafts |
2011 |
| Field Testing to Calibrate a Numerical Hydraulic Model of a Large Diameter Power… |
2011 |
| Gorge 2nd Tunnel—A Renewable Opportunity |
2011 |
| Geotechnical Evaluation for the Avenue 45 and Arroyo Drive Relief Sewer |
2011 |
| Small Tunnel, Big Solution—The Pearl River CSO Storage and Conveyance Tunnel Project:… |
2011 |
The Use of Glass-Fibre Reinforced Plastic on the Northern Sewerage Project Stage… |
2011 |
| The Use of Glass-Fibre Reinforced Plastic on the Northern Sewerage Project Stage… |
2011 |
| Trenchless Technology for CSO Control in the Nation's Capitol |
2011 |
| The Use of Glass-Fibre Reinforced Plastic on the Northern Sewerage Project Stage… |
2011 |
| Variable Ground Conditions, Design Issues, and Construction Challenges on the New… |
2011 |
| DCWASA’s Project Delivery Approach for the Washington DC CSO Program |
2010 |
| Geotechnical and Design Challenges for TBM Selection on the ICE Tunnel |
2010 |
| Geotechnical Investigations and Ground Characterization―The New Irvington Tunnel… |
2010 |
| Geotechnical Investigations for the Anacostia River Projects |
2010 |
| Integration of Operations and Underground Construction: Sound Transit University… |
2010 |
| Microtunnel Jacking and Receiving Shafts Constructed Using Cutter Soil Mixing (CSM)… |
2010 |
| New Irvington Tunnel Design Challenges |
2010 |
| The History of Tunneling in Portland—Rail, Highways, and the Environment |
2010 |
| The Sunnydale CSO Tunnel—Dealing with Urban Infrastructure |
2010 |
| Bay Tunnel—Design Challenges |
2009 |
| Design Considerations and Evaluation Process for a New Tunnel and Ocean Outfall Project… |
2009 |
| Feasible Tunnel Construction Options for The Systems Conveyance & Operations Program… |
2009 |
| NATM Strategies in the U.S.—Lessons Learned from the Initial Support Design for… |
2009 |
| Peanuts and Tunnel Stuffing—The Brightwater Conveyance System East Contract |
2009 |
| Pipe Ramming a 60-In. Casing Under BART |
2009 |
| Pipe Ramming Under Three Active Railroad Lines in Difficult Soil Conditions |
2009 |
| Selection, Design, and Procurement of North America’s Largest Mixshield TBM for… |
2009 |
| The Longest Drive—Portland's CSO Microtunnels |
2009 |
| Tunnel Construction Issues with San Francisco's New 44-In. Water Main |
2009 |
| Underground Construction for a Combined Sewer Overflow System in Providence, Rhode… |
2009 |
| Design Analyses for a Large-Span Tunnel in Weak Rock Subject to Strong Seismic Shaking… |
2008 |
| Design of NATM Initial Support on the Caldecott 4th Bore |
2008 |
| Design of the University Link Tunnels and Stations |
2008 |
| Geotechnical Conditions and TBM Selection for the Bay Tunnel |
2008 |
| Napa Valley Wine Caves |
2008 |
| NATM/SEM Analyses for San Francisco’s Transbay Extension Tunnel |
2008 |
| Northern Sewerage Project—Liner Selection in a Corrosive Environment |
2008 |
| San Francisco Tunnels: Past, Present and Future |
2008 |
| Seismic Analyses of the Bay Tunnel |
2008 |
| The Great Salt Lake Causeway—Its Recent History and Current Maintenance Program… |
2008 |
| Seismic Design Evaluation of the Bay Tunnel |
2008 |
| Tunnel Design and Construction in a Franciscan Melange |
2008 |
| Underground Construction Photography: Documenting a Success Story |
2008 |
| Construction of a Mixed Face Reach through Granitic Rocks and Conglomerate |
2007 |
| Drop Shafts for Narragansett Bay Commission CSO Abatement Program, Providence, RI… |
2007 |
| Evaluation of Large Tunnels in Poor Ground—Alternative Tunnel Concepts for the… |
2007 |
| Joint Water Pollution Control Plant Tunnel and Ocean Outfall Project |
2007 |
| Microtunnelling to Help Clean up Portland’s Willamette River |
2007 |
| Planning and Design of the Bay Tunnel |
2007 |
| Portland, Oregon’s Alternative Contract Approach—A Final Summary |
2007 |
| Preliminary Design of the Caldecott Fourth Bore |
2007 |
| Responsibility: Why We Don't 'Just Do It' |
2007 |
| Transbay’s Downtown Rail Extension |
2007 |
| Global and Structural Stability Assessments of Fort Mason Tunnel for Seismic Rehabilitation… |
2006 |
| Role of Engineering Geology on Rehabilitation of Likelike Highway Wilson Tunnel |
2006 |
| Design Evaluations for the San Vicente Pipeline Tunnel |
2005 |
| Design of the Brightwater Conveyance Tunnels |
2005 |
| King County's Project Delivery Approach for the Brightwater Project |
2005 |
| Problems Encountered on the Upper Reach of the Northeast Interceptor Sewer Project… |
2005 |
| Seismic Design Measures for the Retrofit of the Claremont Tunnel |
2005 |
| Trapezoidal Tapered Ring—Key Position Selection in Curved Tunnels |
2005 |
| Multiple Tunnels in Soil with Shotcrete Linings on Tren Urbano, San Juan, Puerto… |
2004 |
| Slurry Walls Accelerate Shaft Construction in Rock in Los Angeles |
2004 |
| Chattahoochee Tunnel |
2003 |
| Connection of the Second Manapouri Tailrace Tunnel |
2003 |
| New Methods for Building Protection from Settlement Due to Underground Transit Transit… |
2003 |
| Portland, Oregon’s Alternative Contract Approach to Tackle a Complex Undergound… |
2003 |
| Riverside Badlands Tunnel, Inland Feeder Project: The Challenges Between Concept… |
2003 |
| Design and Construction of a Deep Excavation for the Lake Mathews Outlet Facilities… |
2002 |
| Design and Construction of a Large Diameter Wine Cave in Weak Rock |
2001 |
| Design and Construction Performance of a Large Diameter Tunnel—Soft-Ground—The… |
2001 |
| Engineering Geology and Ground Improvement of the Islais Creek Tunnels, San Francisco… |
2001 |
| Hong Kong Strategic Sewage Disposal Scheme Stage I Deep Tunnels |
2001 |
| M5 East Tunnels: A Flat Roofed, Bolt and Shotcrete-Lined Highway |
2001 |
| Overcoming Difficult Ground Conditions in San Francisco—The Richmond Transport… |
2001 |
| Seismic Upgrades of the Claremont Tunnel |
2001 |
| Tunneling At Hollywood Reservoir |
2001 |
| Tunneling Through Cobbles In Sacramento, California |
2001 |
| Hollywood Water Quality Improvement Project Construction |
2000 |
| City of Los Angeles Large-Diameter Interceptor Sewer Tunnels |
1999 |
| Design Methodology Used for the Lake Mathews Outlet Facilities Project |
1999 |
| Freezing to Tanking: Challenges of the City Link Driven Tunnels |
1999 |
| Tunneling on the Tren Urbano Project, San Juan, Puerto Rico |
1999 |
| Design and Construction of the New Tunnel at Genting Sempah, Malaysia |
1997 |
| Design of the Metrowest Pressure Tunnel |
1997 |
| Fremont Sewer Replacement |
1997 |
| Primary Support Design for Large Span Tunnels in Weak Rock: The Melbourne City Link… |
1997 |
| Construction & Performance of Jet Grout Supported Soldier Pile Tremie Concrete Walls… |
1996 |
| Design Challenges of the San Bernardino Mountains Tunnels along the Inland Feeder… |
1996 |
| San Francisco CSO |
1995 |
| Tunnel Construction by TBM Sand Bar Hydroelectric Project |
1987 |
| Mixed Face Tunneling on Melbourne Underground |
1980 |
| Some Tunnel Failures and What They Have Taught |
1975 |
| Pilot Tunnel lnvestigations into Aspects of Excavation and Primary Support for Melbourne… |
1974 |
