Difference between revisions of "Piers and trestles"
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==Introduction== | ==Introduction== | ||
| − | Piers are rather long structures with a horizontal deck on series of piles extending perpendicular to the coast into the sea. Piers and trestles are constructed to serve as a landing place for vessels, as a recreation facility, as a measuring facility for coastal processes or as a part of sand by-pass facility. Figure 1 shows an example of a pier. | + | Piers are rather long structures with a horizontal deck on series of piles extending perpendicular to the coast into the sea. Piers and trestles are constructed to serve as a landing place for vessels, as a recreation facility, as a measuring facility for coastal processes or as a part of [[Sand by-pass systems|sand by-pass facility]]. Figure 1 shows an example of a pier. |
| − | [[Image:pl_sop_molo_2004.jpg|thumb|right| | + | [[Image:pl_sop_molo_2004.jpg|thumb|right|350px|Figure 1 Longest wooden pier in Europe (Sopot, Poland) - 450m from bank, 650m in total]] |
==Possible impact on coastal processes== | ==Possible impact on coastal processes== | ||
| − | The supporting piles of these structures may have an impact on coastal processes. Especially if the number of piles is rather large and/or with large diameters of the piles, obliquely arriving waves will cause an area with reduced wave heights in the lee of the structure. The sediment transports will be reduced as well; spots with some accretion might occur (in general at both sides since waves will approach from both sides). Especially for measuring piers this might yield a-typical measuring conditions. | + | The supporting piles of these structures may have an impact on coastal processes. Especially if the number of piles is rather large and/or with large diameters of the piles, obliquely arriving waves will cause an area with reduced wave heights in the lee of the structure. The sediment transports will be reduced as well; spots with some [[accretion]] might occur (in general at both sides since waves will approach from both sides). Especially for measuring piers this might yield a-typical measuring conditions. |
==See also== | ==See also== | ||
| − | * [[ | + | * [[Dealing with coastal erosion]] |
| − | * [[Hard structures | + | * [[Hard coastal protection structures]] |
==References== | ==References== | ||
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|AuthorFullName= Jan van de Graaff}} | |AuthorFullName= Jan van de Graaff}} | ||
| − | + | [[Category:Coastal protection]] | |
| − | [[Category:Coastal | + | [[Category:Hard structures]] |
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Latest revision as of 15:37, 5 July 2020
This article gives a short introduction in the application of piers and trestles.
Introduction
Piers are rather long structures with a horizontal deck on series of piles extending perpendicular to the coast into the sea. Piers and trestles are constructed to serve as a landing place for vessels, as a recreation facility, as a measuring facility for coastal processes or as a part of sand by-pass facility. Figure 1 shows an example of a pier.
Possible impact on coastal processes
The supporting piles of these structures may have an impact on coastal processes. Especially if the number of piles is rather large and/or with large diameters of the piles, obliquely arriving waves will cause an area with reduced wave heights in the lee of the structure. The sediment transports will be reduced as well; spots with some accretion might occur (in general at both sides since waves will approach from both sides). Especially for measuring piers this might yield a-typical measuring conditions.
See also
References
Please note that others may also have edited the contents of this article.
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