Megaproject Monitoring by Satellite ? InSAR-based Settlement-time History: Measuring Hundreds of Thousands of Points, Several Times a Month, Across an Entire City
Satellite-based interferometric synthetic aperture radar, or InSAR, has gained unequivocal importance as a routine and precise monitoring method for large and small areas alike. Historical datasets allow...
Applying Scanning Technology to Tunnel Inspections: Leveraging Technology to Reduce the Public Agita
A large number of transit and vehicular tunnels in the New York Metropolitan area were inundated by the tidal surge caused by Super Storm Sandy on October 29, 2012. The storm created major...
So, Why Do You Want to Write a GBR?
Since 1974, scores of papers, articles, conferences, and legal documents have been dedicated to explaining how to write and/or how to use a Geotechnical Baseline Report (GBR). But the...
Ground Freezing in a Congested Urban Area
Artificial ground freezing is a method of providing temporary earth support and ground water control for deep excavations and tunnels. The technique has been used for over 100 years in...
2012 OPAL Awards Videos
Introductions for ASCE's 2012 Outstanding Civil Engineering Achievement award finalists along with the acceptance speech of the winner, the Hoover Dam Bypass. Also shown are...
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...
Chemical Grouting
Chemical grouting is used in underground construction primarily on soft-ground shafts and tunnels in an effort to control cohesionless or running ground conditions by modifying the soil....
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....
Lessons Learned
This chapter discusses feedback obtained during two industry workshops that were specifically directed at capturing lessons learned. The first workshop, held in association with a national...
Calendar: A 1982 Calendar Illustrating National Historic Civil Engineering Landmarks
Featured landmarks are: The Erie Canal (NY); High Bridge (NY); The Joining of the Rails if the First Transcontinental Railroad (UT); Mormon Tabernacle (UT); Theodore Roosevelt Dam and...
Repairing Pittsburgh's Portal
Engineering the rehabilitation of Pittsburgh's Fort Pitt Bridge and Fort Pitt Tunnel involved an extensive inspection of their condition and a detailed evaluation of alternative...
Light at the End of the Tunnel
As part of a comprehensive program to control combined sewer overflows in Richmond, Virginia, engineers designed a deep tunnel 5,900 feet long to store the polluted water during severe...
Linking Past and Future
A superhighways spanning all of northern Greece - linking the port city of Igoumenitsa in the west to Turkey in the east - elevates an ancient trade route to modern design standards. Staggering...
Outdoor Human Comfort and Its Assessment
Prepared by the Task Committee on Outdoor Human Comfort of the Aerodynamics Committee of ASCE. This report describes state-of-the-art methods for assessing...
Structural Expression in Wind Sensitive Structures
Architectural details can impact both the local cladding pressures on a structure as well as the overall structural response. Figure 1 shows a pair of roof corner vortices on the upper...
Bridge and Tunnel Security
The American Association of State Highway and Transportation Officials and the Federal Highway Administration recently convened a panel of esteemed researchers and experts in bridge and...
Making the Transition
Completed in March, the Thornton Transitional Reservoir, south of Chicago, is providing immediate flood relief and water quality benefits more than decade before a larger storm-water reservoir...
Restoring PATH
Service from northern New Jersey to lower Manhattan on the Port Authority Trans-Hudson (PATH) commuter rail system will soon be restored thanks to a speedy rehabilitation of tunnels and...
High-Profile Tunneling
When a flood left a considerable amount of debris in its wake the replacement of a hydroplant's tailrace high in the Peruvian Andes presented formidable challenges....
The Big Dig's Big Dig
Widely recognized as the most demanding component of Boston's Central Artery/Tunnel Project, the tunnel jacking work performed beneath operating rail tracks represents a quantum...
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