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Screw Piles and Helical Anchors: 180 Years of Use in Geotechnical Engineering
Since 1836, screw piles and screw cylinders have been used successfully throughout the world to support a variety of large-scale, civil engineering structures. Their development and use...

Component Design
This chapter discusses component design. Topics include coupling beam design; beam-wall connection design; and wall pier design....

Evaluation of Geopier Rammed Aggregate Piers by Geopier Foundation Company
Final Report
Prepared by the Highway Innovative Technology Evaluation Center (HITEC). This report describes a HITEC evaluation designed to determine the basic capabilities...

Taking the High Road
Commuters on a congested toll highway in Tampa, FL, will soon have the option of rising above the rest of the traffic on three reversible express lanes. By elevating the new lanes on slender...

The Submarine Mission
A new Navy engineering and support facility for submarines has been designed and constructed at Lake Pend Oreille, near Bayview, Idaho. The project includes a bridge approach to the facility,...

Beltway Connection
The Woodrow Wilson Memorial Bridge carries the Capital Beltway (I-495) and a part of I-95�the main north�south interstate route on the East Coast�across the Potomac River south of Washington,...

Big Screen Debut
The Glenn-Colusa Irrigation District (GCID) encompasses nearly 150,000 acres (60,700 ha) of prime agricultural land in California's Sacramento Valley, generally considered...

Megaproject Management
By the dredging and landfill project manager for the Port of Los Angeles and Alan E. Alcorn, P.E., an associate vice president of Moffat and Nichol Engineers in Los Angeles. The Pier 400...

Twenty-First Century Terminal
The Port of Los Angeles is already the busiest container facility in the United States, and the eighth busiest in the world. In 2000 it handled some 112 million tons (102 million Mg) of...

Sum of the Parts
As with all of the bay bridges that serve as life lines to the San Francisco peninsula, the 32-year-old San Mateo Bridge needs strengthening to withstand a maximum credible earthquake...

Considering the Options (Available in Structural Engineering Special Section only)
In work for the Missouri Department of Transportation (MoDOT), Sverdrup Civil, Inc. performed a seismic evaluation and developed a seismic retrofit strategy for the Poplar Street Bridge...

Preparing for Pier A
Earthquakes, oil wells, contamination and unstable soil were among the challenges engineers faced as they prepared a site at California's port of Long Beach for the Pier A...

Fathoming the Strength of Structures
More and more, the owners of bridges and piers are budgeting rehabilitations based on inspections done underneath the waterline. Increasingly, they want the underwater inspectors to be...

Pier Width and Local-Scour Depth
Presented here are the results of an enquiry into the effects of pier width on local scour depth. The results show that scour depth does not scale linearly with pier width unless there...

Monitoring Scour at Bridge Piers in Snohomish Co., WA
Washington State, Snohomish County Public Works Department is using a new Fixed Mechanical monitoring device, to augment its current program of monitoring scour at bridge piers. The Public...

Scour in Erodible Rock II: Erosive Power at Bridge Piers
Scour depths around bridge piers founded on erodible rock can be determined by making use of the Erodibility Index Method. This method defmes an erosion threshold by relating the erosive...

Pier Scour at Wide Piers
Scour at relatively wide piers in shallow water is not explicitly accounted for in the current HEC-18 scour equation. The scour estimated for this case is often overpredicted. In this...

Scour Around Circular Piers
In certain situations scour classification becomes sensitive. The generalised scour relationships are superior to classification dependent scour relationships. In this study a generalised...

Temporal Development of Local Scour at Bridge Piers
The temporal development of local scour depth at circular cylindrical bridge piers is considered. New data are presented and used to quantify the influence of flow duration on the depth...

Measurements of Bridge-Scour Depths in Mississippi
This paper briefly summarizes 190 measured pier-scour depths collected dur ing 1942?94 at 22 selected bridges in Mississippi and presents an envelope-curve equation for the data. The envelope-curve...

 

 

 

 

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