From Good to Great: The Evolution of Cutoff Wall Quality Control and Verification Techniques
The last three decades have brought tremendous improvements to quality control (QC) procedures for construction and post-construction verification of deep cutoff walls installed in active high-hazard dams....
70 Years of Soil-Bentonite Slurry Walls: So, What's New
The soil-bentonite slurry wall (SBSW) is an established ground improvement technology that continues to find applications. It�s often the best and most economical vertical barrier to essentially stop lateral...
A Simple Model to Predict Soil Resistance to Driving for Long Piles in Deepwater Normally Consolidated Clays
As the exploration and development for offshore oil and gas reserves moves into the deepwater environment of the continental slope, a good model is necessary to evaluate drivability of...
Behaviour of Open-Ended Pipe Piles in Sand During Installation and Loading
An experimental study was performed to investigate the physical processes which influence the axial load capacities of open-ended steel pipe piles in sand. A double-walled pipe pile was...
Introduction
This chapter serves as an introduction to the book. The application and scope of its recommendations for hybrid coupled wall systems are discussed....
Prescriptive Design Method (PrDM)
This chapter discusses the prescriptive design method (PrDM). Topics include classification according to current provisions; system analysis; vertical redistribution of coupling beam forces;...
Component Design
This chapter discusses component design. Topics include coupling beam design; beam-wall connection design; and wall pier design....
Alternative Hybrid Wall Systems
This chapter discusses alternative hybrid wall systems. Topics include unbonded post-tensioned coupled wall systems; steel coupling beam with fuse; and composite shear plate coupling beam....
Pioneer Square Areaways
Pioneer Square, one of the earliest neighborhoods in Seattle, is adjacent to Elliott Bay. Much ofthis part of the city originally was built on existing land that used to get flooded. When...
Flexural Behavior of Slender Post-Tensioned Masonry Walls
The 2002 edition of the Masonry Standards Joint Committee (MSJC, 2002) design provisions for masonry structures includes a chapter on the design of post-tensioned masonry (PTM) walls with...
Pressure Relief
When the two basins making up a 90 acre reservoir in New York needed to be emptied and cleaned, engineers decided to use the 2,750 ft (840 m) long concrete wall dividing them as a dam....
Constructing on the Inconstructible
Exhaustive and sophisticated analyses of extremely weak foundation soils coupled with an innovative approach to quay wall design help bring the new shipping terminal under construction...
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...
A Better Barrier
Seepage problems have troubled the Walter F. George Lock and Dam, on the Chattahoochee River, for more than 40 years. Construction of a deep positive cutoff wall is nearing completion,...
Holding Up
Now that the redevelopment of the World Trade Center site is under way, the time is right to examine the status of the remaining slurry wall foundation system and consider how future construction...
The Chernobyl Problem
When the infamous accident at the Chernobyl Nuclear Power Plant occurred in April 1986�a catastrophe that involved an explosion that blew off the top of one of the plant's...
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...
Repeat Performance
Working with a budget of $10 million, engineers designing a new high-rise residential structure in New York City had to find creative ways to control costs. One budget-saving idea was...
The Inside Story
A full-scale renovation of the interior of Oklahoma City's Civic Center Music Hall required shaving much of the depth from two trusses under load conditions, installing new...
Cliff-Hanger
To create an arch bridge over a river gorge in Oregon without disturbing the canyon walls or floor below, engineers combined a segmental construction scheme with a temporary cable-stay...
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