LOW COST SHORE PROTECTION USED ON THE GREAT LAKES

2000 ◽  
Vol 1 (4) ◽  
pp. 15
Author(s):  
E F. Brater
Keyword(s):  
Great Lakes ◽  
Low Cost ◽  
Wave Forces ◽  
Field Observations ◽  
Shore Protection ◽  
Protective Devices ◽  
Protection Structures

The purpose of this paper is to present the results of three years of field observations on low cost beach protection structures in use on the Great Lakes. The structures were studied in regard to their effectiveness as beach building and protective devices and with respect to their durability in resisting ice and wave forces. The term "low cost" refers to structures which cost between $10 and $50 per foot of frontage at 1952 prices.

Bank protection structures of the cascade of water reservoirs of the Vilia-Minsk water system

2019 ◽  
pp. 48-58
Keyword(s):  
Wind Waves ◽  
Water System ◽  
Field Studies ◽  
The Body ◽  
Coastal Protection ◽  
Field Observations ◽  
Shore Protection ◽  
Current State ◽  
National University ◽  
Protection Structures

The data of field studies of shore protection structures in the reservoirs of the Vilia-Minsk water system are given, the current state of various types of fastenings is assessed with the reasons for their destruction and the extent of deformation. The article presents the results of field observations of coastal shelter-type structures. It is shown that the most common anchorages of banks and slopes is to protect the surface of slopes in the form of reinforced monolithic or precast slabs. It is determined that the deformations of the slope anchorages are most often represented by the opening of inter-tile construction, temperature and sedimentary seams (the opening width is registered to 0.35 m) which develop under the complex influence of wind waves, fluctuations in levels and other factors. Subsequently, the deformation of the exposed seams lead to the destruction of the attachment. Experimentally, on the basis of physical modeling of deformations of slopes made in the hydrotechnical laboratory of the Belarusian National University on models of soil supporting structures protected by reinforced concrete fastening, it was established that as a result of opening the seams of the plates, the sand-gravel preparation and the formation of sinuses and niches in the body of the support structure occur , which leads to significant processing of the ground slope. The coastal protection structures of the active type in the form of laid and beach slopes are considered. The dependencies on the calculation of slope deformations are obtained on the basis of a generalization of the data of field observations.

scholarly journals LOW-COST SHORE PROTECTION ON THE GREAT LAKES: A DEMONSTRATION/RESEARCH PROGRAM

1976 ◽  
Vol 1 (15) ◽  
pp. 163
Author(s):  
John M. Armstrong
Keyword(s):  
Great Lakes ◽  
Low Cost ◽  
Shore Protection ◽  
Lake Levels ◽  
Erosion Process ◽  
Severe Erosion ◽  
Waves And Currents ◽  
Artificial Nourishment ◽  
Protective Methods ◽  
Large Wind

Shore erosion is currently causing millions of dollars of damage to shoreline property along the Great Lakes (1,2). Erosion is caused by the energy of waves and currents which are produced by large wind storms. The erosion process on the Great Lakes is most severe when lake levels are near the top of their 6-foot (1.8 meter) range'for several years as is currently being experienced. The severe erosion process continues even after lake levels fall, as the bluffs have become unstable and waves from intense storms can still attack them. In order to alleviate the erosion damages to beaches and bluffs, shoreline owners must rely on shore protection methods. Effective methods of shore protection are designed to slow or stop the erosion process by dissipating wave energy and/or preventing bluff attack. However, the most effective methods are very expensive, costing over $200 per foot ($656 per meter) of shoreline. (Costs are calculated, for the purposes of this study, as the length of shoreline which is expected to be protected by the shore protection methods. For sites utilizing revetments, artificial nourishment, and seawalls, the length is the stretch of shoreline actually covered by the method. For locations utilizing groin systems and breakwaters, the system was designed to protect the entire length of the sites; the costs have been calculated on that basis. Whether these systems actually protect that length of shoreline is to be determined by this study.) Shoreline homeowners are usually not able to meet such expenses, and often resort to less efficient and costly alternatives. Private shoreline owners need accurate, reliable information about effective low-cost shore protective methods in order to reduce or alleviate the severe erosion damages to their shoreline.

Retrospective on the 1970’s “Low Cost Shore Protection” program

Shore & Beach ◽  
2019 ◽  
pp. 3-12
Author(s):  
Joan Pope
Keyword(s):  
Coastal Erosion ◽  
Low Cost ◽  
Management Strategies ◽  
Public Information ◽  
Coastal Engineering ◽  
Shoreline Erosion ◽  
Shore Protection ◽  
Demonstration Program ◽  
Alternative Approaches ◽  
The U.S

In the 1970s, the U.S. Congress authorized and funded a five-year demonstration program on low-cost methods for shore protection called the “U.S. Army Engineers Shoreline Erosion Control Demonstration (Section 54) Program.” The Section 54 also known as the “Low-Cost Shore Protection” demonstration program is revisited. Demonstration and monitoring sites including the materials, devices, vegetative plantings, approaches tested, and program findings are discussed. Simply put, a major finding of the Section 54 program was that the concept of “low-cost shore protection” was a bit naïve. However, the program did lead to a wealth of public information documents and practical coastal engineering lessons that are still resonating as home owners, communities, and engineers consider alternative approaches for managing coastal erosion. The program structure and findings are applicable 40 years later as consideration is given toward the use of Natural and Nature-based Features (NNBF) for addressing coastal erosion. Evolution in thought relative to coastal erosion and shoreline enhancement activities since the 1970s has built upon many of the lessons and concepts of the Section 54 program and other real-world coastal erosion management success-failure experiences. This growth has led to a modern appreciation that those features that emulate NNBF are promising and responsible alternative coastal erosion management strategies if proper engineering standard elements of design are included in the project.

scholarly journals FIELD OBSERVATIONS OF WAVE PRESSURE, WAVE RUN-UP, AND OSCILLATION OF BREAKWATER

1966 ◽  
Vol 1 (10) ◽  
pp. 19 ◽  
Author(s):  
Yoshio Muraki
Keyword(s):  
Pressure Wave ◽  
Front Surface ◽  
Shock Pressure ◽  
Wave Forces ◽  
Field Observations ◽  
Progressive Wave ◽  
Wave Pressure ◽  
Scientists And Engineers ◽  
Run Up ◽  
Wave Phenomena

When a strong progressive wave collide against a shore structure, run-up and reflection of the wave take place on the front surface of the structure. At the same time, the structure is subjected to wave pressure resulting its oscillation or sometimes its sliding when the wave pressure is very large. Studies concerning such wave phenomena related to structures have been conducted by numerous scientists and engineers in many laboratories. While only a few investigations in the field have been made on these phenomena. At the same time it is noted that very few investigations have been carried out on the oscillation of breakwater caused by wave forces. The author performed some field observations on the wave pressure, wave run-up, and oscillation of breakwater at Haboro Harbor m Hokkaido, Japan, from 1957 to i960 (Refs. 1,2 and 3). In this paper the main results obtained from these observations such as the frequency of occurrence of shock pressure, the relationships among the run-up height, wave pressure and incident wave height, and the rocking phenomenon of the breakwater caused by wave pressure are summarized.

scholarly journals Shore Protection Structures Increase and Evolution on the Northern Tuscany Coast (Italy): Influence of Tourism Industry

Water ◽  
2018 ◽  
Vol 10 (11) ◽  
pp. 1647 ◽  
Author(s):  
Enzo Pranzini ◽  
Giorgio Anfuso ◽  
Irene Cinelli ◽  
Marco Piccardi ◽  
Giovanni Vitale
Keyword(s):  
Negative Impact ◽  
Management Plan ◽  
Tourism Industry ◽  
Beach Erosion ◽  
Shore Protection ◽  
Natural Sediment ◽  
Forcing Function ◽  
Hard Structures ◽  
The 19Th Century ◽  
Protection Structures

Analysis of a large shoreline database (from 1878 to 2017) and recompilation of information on type/age of shore protection structures along the Northern Tuscany, allowed a deep insight of the progressive armouring of this coastal sector. The area experienced beach erosion since the end of the 19th century due to reduced sediment inputs from rivers and harbour constructions. Shore protection structures started to develop at the beginning of the 20th century, first to protect settlements and coastal roads, later to maintain a beach for tourist activity. The changing of the goal and the increasing awareness of the negative impact of some structures resulted in an evolution of coastal defence projects: initially, seawalls and revetments, later detached breakwaters and, more recently, groins. Today, a reduction in hard structures is perceived by removing or lowering detached breakwaters and groins below mean sea level. The forcing function of the growing tourism industry is producing a demand for projects and their design is detailed in this paper: results will be of use in the correct design of a long-term, general, erosion management plan to restore the natural sediment circulation patterns.

Possibility of using stone concrete in shore protection structures

1971 ◽  
Vol 5 (10) ◽  
pp. 913-915 ◽  
Author(s):  
A. K. Shreiber ◽  
M. M. Milyukovskii
Keyword(s):  
Shore Protection ◽  
Stone Concrete ◽  
Protection Structures

scholarly journals Small Scale Physical Measurement of Wave Overtopping For Different Shore Protection Structures

2019 ◽  
Vol 12 (Summer and Autumn 2019) ◽  
pp. 49-56
Author(s):  
Farhood Azarsina ◽  
Aria Pirzadeh ◽  
Ghasem Darvish ◽  
◽  
◽  
...  
Keyword(s):  
Small Scale ◽  
Shore Protection ◽  
Physical Measurement ◽  
Wave Overtopping ◽  
Protection Structures
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