Intergalactic Soil Nails: Excavation Support for the Deep Space Auditorium
A software company based outside Madison, Wis., had a need for an auditorium as part of its campus expansion in 2011. The 829,000-sq-ft, 11,400-seat "Deep Space" auditorium was to be built underground,...
Failure of a Large Circular Excavation
A circular excavation, 117 feet (36 m) in diameter by 90 feet (27 m) deep, was designed by an experienced engineering firm and construction was performed by an experienced contractor....
Support of Excavation Challenges and Solutions at a Manhattan Excavation Site
This article discusses the challenges and alternate solutions encountered in 2012 during support of excavation operations at a medical center project site in Manhattan, NY. The project...
Grouting Methods
This chapter discusses common grouting methods used in underground applications in both soil and rock. Jet, compaction, permeation, and hydrofracture grouting methods are frequently used...
Applications for Other Excavations and Foundations
This section discusses the application of GBRs for other excavations and foundations projects, projects involving construction operations other than tunneling....
Making the Grade
Adding two lanes to a stretch of highway in western Colorado required excavation on slopes and involved micropiles, mechanically stabilized earth walls, ground anchors, and soil nails....
Sediment Remediation at the Unnamed Tributary to the Ottawa River
A sediment removal action was conducted in the Unnamed Tributary to the Ottawa River to address sediments containing polychlorinated biphenyls(PCBs) at concentrations up to 74,000 mg/kg....
Deep Freeze
In engineering, overcoming a failure can sometimes be more instructive than completing a project with unqualified success. Such was the case with the collapse and repair of a force main...
The Excavation
As the largest, most emotionally charged deconstruction effort ever undertaken in the United States comes to a close, the World Trade Center has been reduced to what it was 35 years ago:...
Non-Destructive Excavating Around Pipelines and Challenging Conditions
Hydrovac technology provides engineers and contractors with a unique solution for non-destructive excavating around sensitive buried lines. As a non-mechanical excavating method, it is...
The Long Arch
The proposed long-arch method of constructing large underground chambers is a novel variation of well-established cellular construction methods. But each cell is arch-shaped and is independent...
Great Excavations
By any definition, the scale of the underground caverns being excavated near Geneva at the particle physics center run by the Conseil Europ�en pour la Recherche Nucl�aire (CERN)�the European...
Tunneling with Care
The Mission Valley Light Rail East extension was to run just north of San Diego State University (SDSU), and was to be constructed using a tunnel-boring machine (TBM). But the Metropolitan...
Three Dams, One Reservoir
The three dams that make up the 800,000 acre-ft (987 million m�) Eastside Reservoir in Riverside County, California, required extensive foundation excavation and careful placement of embankment...
Geo-Engineering for Underground Facilities
The papers collected in this proceedings
Jet Grouting: New Directions
This article looks at jet grouting in soft soils, especially applications involving pre-installed structural supports for cut and cover excavations. The author offers a question and answer...
Robotics for Challenging Environments
This proceedings,
Piggyback Tunnels
Coincidental alignments of the Central Artery Tunnel and the Transitway subway line under the streets of Dewey Square in Boston presented the sponsoring agencies with a rare opportunity...
Mother Nature's Pump and Treat
Known under the general term of phytoremediation, using vegetation as a remedial agent has existed in its basic form for many years, mostly in applications involving waste-water treatment....
Berlin's Big Dig
As the first of many major development projects for the new Berlin, the DM 1.5 billion FriedrichstadtPassengen project is the largest private construction investment in Berlin's...
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