Enduring Strength
The long-term effectiveness of posttensioning in bridges depends on the resiliency of the tendons, and various factors related to construction and marine environments come into play. How...

Rebuilding an Island
Following centuries of rising sea levels and pounding waves, almost all of Poplar Island had, by the 1990s, been lost to erosion in the Chesapeake Bay. Today the land is on its way back,...

Physical Model of Current-Induced Scour at Ventura Harbor
This paper describes a 1:25-scale movable-bed physical model study of scour resulting from longshore current passing through a narrow gap on the leeside of the detached breakwater at Ventura...

Berm Breakwaters?Design, Construction and Monitoring
The philosophy of the fieldwork of Berm breakwaters was applied in Iceland. A few case histories were described with emphasis on quarry investigations, design, construction and monitoring....

Comparison of Hydrodynamic Parameters for a Floating Breakwater
The U. S. Army Engineer Research and Development Center is in the process of developing a Rapidly Installed Breakwater System (RIBS) for use in Joint Logistics Over the Shore Operations...

Montioring and Modeling of Tandem Breakwater System at Hammond, IN
A tandem breakwater system was constructed in 1989-90 to provide protection for a large marina at Hammond, IN, at the south end of Lake Michigan. A five year monitoring program (1993-98),...

Advances in Buoy Technology for Wind/Wave Data Collection and Analysis
Considerable advances have been made recently to reduce the cost of gathering meteorological and oceanographic data from coastal waters, especially for meteorological and oceanographic...

Depth Measurement Using Remotely Sensed Data, Specifically A casi
The compact airborne spectrographic imager (casi) is what is referred to as an imaging spectrometer. This is an optical device that is mounted on an aircraft and used to collect high resolution...

St. George Habor?Berm Breakwater Construction Considerations
During the period 1984-1987 three berm breakwaters with a total length of approximately 800 meters were constructed at St. George Harbor on St. George Island in the Pribil of Chain of...

Rhythm of Beachrock Levels in Contrasting Plate Settings: Rifting Red Sea and North American-Caribbean Plates
Sequences of beachrocks have been compared from the northern Red Sea, the North American plate (north shore of Puerto Rico), and an island of the Caribbean plate. In all these areas the...

Characteristics and Implications of Relict Carbonate Paleoshorelines
Throughout the Florida-Bahamas region, the accumulation of coastal carbonate deposits, excepting the present highstand, appears to be episodic. Back through time these deposits provide...

Calibration of Water-Velocity Meters
The U.S. Geological Survey (USGS), as part of its responsibility to appraise the quantity of water resources in the United States, maintains facilities for the calibration of water-velocity...

The Determination of Velocity Spectra and Dissipation by Direct and Indirect Means using Second-Order Accurate PIV
In this paper we present a 2 nd order accurate technique in space (following Wereley & Meinhart's (2001) extension of Cowen & Monismith's (1997) dynamic sub-window PIV...

International Journal of Geomechanics
The International Journal of Geomechanics (IJOG) focuses on geomechanics with emphasis on theoretical aspects, including computational and analytical methods and related validations. Applications of interdisciplinary...

Beach Changes Triggered by Seaward Development of Towns, Expansion of Coastal Forest and Construction of Detached Breakwaters at a Pocket Beach
Beach changes triggered by seaward development of towns, expansion of coastal forests and construction of detached breakwaters at a pocket beach were analyzed, taking the Ariake-Ishihama...

Monitoring and Performance Analysis of Protection Works at Rosslare Strand
Post construction monitoring and performance analysis has become an important part of many major coastal protection projects. In the past such work was carried out very much on an ad-hoc...

Measuring Key Physical Processes in a California Lagoon
A focused data collection program was completed in support of a U.S. Army Corps of Engineers feasibility study of restoration alternatives for protecting and managing the habitat in Bolinas...

Low Cost Sand Re-Nourishment to Combat Chronic Beach Erosion: Long Beach, California
The City of Long Beach has analyzed and attempted numerous methods of beach erosion control and mitigation along Peninsula Beach. With the exception of beach nourishment, nothing has proven...

The Sharon Escarpment, Israel: Management of a Backshore Cliff in a Densely Populated Environment
The Sharon Escarpment is a coastal backshore escarpment made of heterogeneous layered sandstone. This area is an increasingly exploited environmental resource. This paper defines the main...

Towers in Motion (available in Structural Engineering Special Section only)
Undersea towers are typically designed to rigidly resist the forces of water and wind. But one type of tower is designed to be flexible and, rather than rely on its platform strength to...

 

 

 

 

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