An Alternative Approach
An innovative foundation system at a Virginia power plant relies on columns constructed via jet grouting to support elevated units that reduce pollution. The approach required less drilling,...
Thermal Cyclone Washing for Remediation of Petroleum Contaminated Soils
Thermal Cyclone Washing (TCW) is a soil remediation technology developed and tested at the University of Alabama in Huntsville. TCW is a combination of thermal, chemical, and physical...
Characterization of Anaerobic Microbial Consortium Response to Thiol-Reactive Compounds
The activity of anaerobes in wastewater treatment processes can be limited when a toxicant enters the system. For certain toxicants, along with the decrease in metabolic activity, an efflux...
Countering Chemical and Biological Terrorism
Prior to the terrorist attacks of September 11, building protection related to terrorism primarily focused on the threat of bombs detonated inside vechicles. However the September 2001...
Strength from Within
After decades of being continuously struck by rockfalls and wayward vehicles, Knapps Hill Tunnel�a highway structure built in 1936 and located on state Route 97A in central Washington...
Multifaceted Trenchless Rehabilitation at the Middletown, Ohio WWTP
This paper describes the multiple trenchless technologies that were evaluated and the ones that were applied to the rehabilitation of a 78la diameter corrugated metal influent line and...
New Concepts in Structural Strength Assessment for Large Buildings in Fire
This paper presents theoretical descriptions of the key phenomena that govern the behaviour of composite framed structures in fire. These descriptions have been developed in parallel with...
Foundations and Ground Improvement
This proceedings,
Raising the Bar of BART
Although it was originally designed to withstand a strong earthquake, and did so admirably in 1989, the Bay Area Transit (BART) system was recently evaluated to determine its ability to...
A Whole New Experience
Experience Music Project co-founders Paul Allen and Jody Allen Patton wanted a new museum/interactive music facility for Seattle that reflected the creativity of Jimi Hendrix. In architect...
Toronto's Tunnel Solution (Available in the Geoenvironmental Special Section only)
The Toronto Transit Commission (TTC), one of the largest public transportation systems in North America, carries more than 1,000,000 commuters a day. The TTC's tunnels had...
The Penstock Puzzle
After 40 years of chronic slope movements and several engineering studies, the Sacramento Municipal Utility District in California signed a design-build contract to stabilize the 1,500...
Perpetual Pilots
Because testing new processes, treatment chemicals, and operational modifications is difficult in full-scale water treatment facilities, many utilities are installing permanent pilot plants....
For the Duration
The U.S. Army Corps of Engineers developed a new grouting method called duration grouting when constructing the foundations for the Portugues Dam in Ponce, Puerto Rico. The site is marked...
Sinkhole Solution (Available in Geo-Environmental Special Issue only)
In the summer of 1998, a large sinkhole developed overnight in the center of the two-year-old Eagle Ridge Mall in Haines City, FL. The surface depression measured approximately 4.3 m deep...
Behavioral Characteristics of Residual Soils
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...
Grouts and Grouting
A Potpourri of Projects
This proceedings,
Brownfields by the Book
To spur the redevelopment of brownfield properties, many state legislatures have passed laws that allow developers to revitalize contaminated industrial sites without the high risks or...
Cure for Thinning Concrete
After placing 75% of the concrete liner for twin 4.6 km transit tunnels in Portland, Ore., engineers discovered areas of concrete that were thinner than the prescribed 305 mm thickness....
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