A-jack

A-jack

A-Jacks are a commercially made concrete product used in both open channel and coastal applications. They consist of three long cement stakes joined at the middle, forming six legs. [http://www.stormwatercenter.net/Assorted%20Fact%20Sheets/Restoration/bank_protection.htm] They can be manufactured in sizes from 35 kg to 10 tonnes and more. Open channel applications include bank stabilization, flow and grade control, scour protection for bridge piers, and biostabilization. In coastal applications A-Jacks are used as breakwaters, revetments, artificial reefs, and habitat development.

ee also

* Akmon
* Artificial reef
* Breakwater (structure)
* Dolos
* Gabions
* Masonry
* Tetrapod (structure)
* Xbloc


Wikimedia Foundation. 2010.

Игры ⚽ Поможем написать курсовую

Look at other dictionaries:

  • Jack Deveraux and Jennifer Horton — Jack Harcourt Deveraux and Jennifer Rose Horton Deveraux are fictional characters and a supercouple from the NBC daytime drama Days of our Lives ,cite news |title=Soap Star Stats: Matthew Ashford (Jack, DAYS) |publisher= Soap Opera Digest… …   Wikipedia

  • Jack Snyder and Carly Tenney — Snyder are fictional characters and a supercouple from the American daytime drama As the World Turns .cite news| title=TOP 5 SUPERCOUPLES TO WATCH: 5. Jack and Carly, ATWT |publisher=Sympatico, MSN|accessdate=2007 11… …   Wikipedia

  • Jack Bauer — Personaje de 24 Kiefer Sutherland, ante un cartel de 24 Primera aparición Temporada 1 Ep …   Wikipedia Español

  • Jack el Destripador — «Con el Comité de Vigilancia en el East End: un personaje sospechoso». Illustrated London News. 13 de octubre de 1888. Nacimiento Su identidad es desconocida. Probablemente nació en Inglaterra …   Wikipedia Español

  • Jack the Ripper fiction — Jack the Ripper has been featured in a number of works of fiction, either as the central character or in a more peripheral role.Novels and short stories*The most famous Jack the Ripper novel is The Lodger (1913) by Marie Belloc Lowndes, which in… …   Wikipedia

  • Jack C. Hayya — is professor emeritus of management science at the Pennsylvania State University.Education*B.S., Civil Enginering, University of Illinois at Champaign Urbana, 1952 *M.S., Management, California State University, Northridge, 1961 [Hayya, Jack C.… …   Wikipedia

  • Jack Wright — was the hero of a popular series of Victorian science fiction dime novels and story papers written by Luis Senarens, the so called American Jules Verne . A few stories are also credited to Francis W. Doughty. Jack appeared in original stories… …   Wikipedia

  • Jack The Ripper — (engl.: „Jack, der Aufschlitzer“) ist das Pseudonym eines vermutlichen Serienmörders, der zwischen August und November 1888 im East End von London vermutlich fünf Prostituierte ermordete und vier von ihnen verstümmelte. Der Täter wurde niemals… …   Deutsch Wikipedia

  • Jack the ripper — (engl.: „Jack, der Aufschlitzer“) ist das Pseudonym eines vermutlichen Serienmörders, der zwischen August und November 1888 im East End von London vermutlich fünf Prostituierte ermordete und vier von ihnen verstümmelte. Der Täter wurde niemals… …   Deutsch Wikipedia

  • Jack’s Playground — ist eine Pornofilmreihe der Produktionsfirma Digital Playground. Regisseur der seit 2003 produzierten Reihe ist Robby D. Sie ist dem Genre des Gonzo Films zuzuordnen. Die Serie unterscheidet sich von anderen Gonzofilmen durch ihre Humor Elemente …   Deutsch Wikipedia

  • Jack Kerouac — Jack Kerouac, par Tom Palumbo (en) …   Wikipédia en Français

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”