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Local Scour at Bridge Abutments
Comparison of local scour depths at bridge abutments computed using different equations yields a large variation in predicted values. To consolidate the fragmented results of previous...

Identifying Causes and Predicting Effects of Bank Erosion
A number of causes of bank erosion in natural and disturbed environments are listed and described. Practical methods of predicting rates and directions of erosion in natural environments...

Geologic and Geomorphic Controls on Bank Erosion
Bank erosion is affected by both geologic (alluvial stratigraphy, sediment type, tectonics) and geomorphic (channel and valley morphology and history) variables. For example, present meander...

Hydraulic Mechanisms of Riverbank Erosion
Recent efforts are described to develop an improved understanding of bank failure due to piping in noncohesive layers in riverbanks. The efforts included field surveys and laboratory tests....

Beach Erosion Protection Methods: Case Study of Dar City Tanzania
Coastal Tanzania has been experiencing severe beach erosion. Beach erosion is much felt in coastal cities like Dar es Salaam, Tanga etc. Beach erosion in Dar es Salaam has caused damage...

Bank Protection at the Middle and Lower Yangtze
The Middle and Lower Yangtze runs through alluvial plains about 1800 km. There are mainly three types of river reaches: straight-slightly sinuous, meandering, and braided. This paper outlines...

Bank Erosion: A Review of British Research
The paper summarizes recent contributions from British geomorphologists and hydrologists. This includes field measurements of processes, modeling of corrasion and mass failure, interactions...

Mechanics of River Bank Erosion and Protection State-of-the-Art Report 3: Federal Republic of Germany
Regulation and bank protection on German rivers and waterways have a long tradition. Major elements are alignment, revetments, groynes, longitudinal dikes and scour protection in bends....

Control of Bank Erosion in The Netherlands. State-of-the-art
In the Netherlands the protection against flooding and the effects of inland navigation have always been extremely important. Many problems related to these items, among them erosion and...

Design Procedures for Soil-Cement Grade-Control Structures
Grade-control structures are effective channel-stabilization measures that may be used singly or as a part of a stabilization plan involving such measures as bed and bank revetment. Grade-control...

International Research on Mechanics of River Bank Erosion?A Summary Overview
A brief overview is presented of research regarding mechanisms of river bank erosion and treatments. In the research river planforms, water stages, currents, waves, ice sediments, bed...

Modeling Sedimentation Problems at Hydro Developments
Sedimentation embodies the processes of erosion, transportation and deposition of sediments. At hydro developments, sedimentation can create problems. Computer sedimentation models (CSM's)...

Coastlines of Italy
These papers were presented at Coastal Zone '89 the Sixth Symposium on Coastal and Ocean Management held in Charleston, South Carolina, July 11-14, 1989. This volume is a...

Barrier Islands
Process and Management
These papers were presented at Coastal Zone '89 the Sixth Symposium on Coastal and Ocean Management held in Charleston, South Carolina, July 11-14, 1989. This volume is part...

Long Lake Dam Model Studies
The Long Lake spillway was designed at the turn of the century as a standard ogee section with an upstream batter for a maximum head of 179 feet (55 m). It did not include any energy dissipator....

Field Observations of Cavitation Erosion in Hydraulic Turbines
Field surveys of the operational and design characteristics of 602 hydroturbines installed since 1950 and having a capacity in excess of 20 MW or a discharge diameter greater than 3 meters...

Stormwater Management in Virginia
In the 1986 budget bill, the Virginia General Assembly directed the Virginia Department of Conservation and Natural Resources, Division of Soil and Water Conservation, to conduct a review...

Reshaping Breakwaters on the Stability of Roundheads and Trunk Erosion in Oblique Waves
The stability of a berm type breakwater (sacrificial breakwater) was tested in a 3-dimensional model at The Hydraulics laboratory, Department of Civil Engineering, University of Aalborg....

Geotechnical and Hydraulic Stability Numbers for Channel Rehabilitation: Part II, Application
Stability numbers for bank stability (N_g) and bed stability (N_h) have been developed. Optimum placement of...

Analysis of Progressive Development on Alluvial Fans
Flow on alluvial fans is considered to be somewhat unpredictable and complex, experiencing high velocities, avulsions, erosion, and deposition causing a dynamic topography with flooding...

 

 

 

 

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