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.
| Microtunnel Jacking and Receiving Shafts Constructed Using Cutter Soil Mixing (CSM)… |
2010 |
| Bay Tunnel—Design Challenges |
2009 |
| Contingency Planning for Microtunneling: An Essential Activity |
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 |
| Geotechnical Baseline Reports—A Review |
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 |
| Effect of Weathering on Strength and Modulus of Basalt and Siltstone |
2008 |
| Geotechnical Conditions and TBM Selection for the Bay Tunnel |
2008 |
| Getting the Right Contract Package |
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 |
| Precast Concrete A Unique Application |
2008 |
| Raw Water Tunnel Condition Assessment |
2008 |
| Recommended Contract Practices for Underground Construction |
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 |
| The Need for Fair Contracts |
2008 |
| Tunnel Design and Construction in a Franciscan Melange |
2008 |
| Underground Construction Photography: Documenting a Success Story |
2008 |
| Utilization of Strain Measurements on Shielded Tunnel Boring Machines |
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 |
| Excavation and Support of a Water Tunnel through the Hayward Fault Zone |
2007 |
| Joint Water Pollution Control Plant Tunnel and Ocean Outfall Project |
2007 |
| Microtunnelling to Help Clean up Portland’s Willamette River |
2007 |
| New Test Methodology for Estimating the Abrasiveness of Soils for TBM Tunnelling |
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 |
| Pre-Excavation Grouting Design Guidelines for Hard Rock Excavations |
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 |
| Design Review Boards—Current State of Practice |
2004 |
| Fast-Track Design and Installation of a 30-inch Casing Pipe Crossing of the Ventura… |
2004 |
| 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 |
| Predicted and Observed Groundwater Into Two Rock Tunnels |
2003 |
| Riverside Badlands Tunnel, Inland Feeder Project: The Challenges Between Concept… |
2003 |
| Behavior of a Single Gasket System for a Precast Concrete Segmental Liner Subject… |
2002 |
| Cost Estimating for Underground Transit: Too Dangerous to “Guesstimate” |
2002 |
| Design and Construction of a Deep Excavation for the Lake Mathews Outlet Facilities… |
2002 |
| NATM in Soft-Ground: A Contradiction of Terms? |
2002 |
| Proposed Revisions to the Differing Site Condition Clause |
2002 |
| Structural Design and Testing of a Bolted and Gasketed Pre-Cast Concrete Segmental… |
2002 |
| An Approach to the Classification of Weak Rock for Tunnel Projects |
2001 |
| 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 |
| New Developments in Microtunneling |
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 |
| Ensuring Your Contractor Is Qualified. Part 1. The What Question: Establishing Qualification… |
2000 |
| Ensuring Your Contractor Is Qualified. Part 2. The Time Question: When To Determine… |
2000 |
| Hollywood Water Quality Improvement Project Construction |
2000 |
| Public Policies Keep Small Firms from Competing |
2000 |
| Underground Design-Build Contract Delivery: The Designer's Perspective |
2000 |
| Betting on the Baseline |
1999 |
| 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 |
| Site Investigations: A Guide |
1998 |
| 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 |
| A Scheduling Tool for Tunnel Construction |
1996 |
| 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 |
| The Three-Category Submittal Review Process |
1996 |
| San Francisco CSO |
1995 |
| Precast Concrete Segmental Linings—Practical Considerations |
1987 |
| Some Tunnel Failures and What They Have Taught |
1975 |
| An Innovation in Machine Tunneling |
1974 |
| Ground Support Prediction Model RSR Concept |
1974 |
