Protective element for a breakwater or wave-retarding construction
AssigneeHbg Civiel B.V.
InventorsJan Reedijk, Martijn Klabbers, Markus Muttray
Life of this patent
Estimating the term…
Abstract
A protective element for a breakwater or wave-retarding construction comprises a body that has at least two opposing projections. The projections are on either side of a flat base and extend transversely thereto. The periphery of the base is non-circular, so that rolling of the protective element under the influence of the beating of the waves is resisted.
Claims17
A method of making a protective element for a breakwater, the protective element having a plate-shaped base and two projections extending from opposite sides of the base, the method comprising the steps of:
- creating a cavity in a substrate and inserting bottom shuttering into the substrate at sides of the cavity to define a mold for a first of the two projections;
- erecting a middle shuttering on a surface of the substrate so as to define a mold for the base;
- erecting a top shuttering above the middle shuttering to define a mold for a second of the two projections;
- and
- pouring concrete into the bottom, middle, and top shutterings separately or continuously and allowing the concrete to set, whereby the set concrete forms the protective element.
A method of making a protective element for a breakwater, the protective element having a plate-shaped base and two projections extending from opposite sides of the base, the method comprising the steps of:
- providing two halves of a mold that defines the protective element when the two halves are joined, each of the two halves having bottom shuttering that defines half of a first of the two projections, middle shuttering that is attached to the bottom shuttering and defines half the base, and top shuttering that is movably attached to the middle shuttering and that defines half of a second of the two projections, the middle shuttering having a lower surface with an opening to the bottom shuttering, the bottom shuttering being elevated on a raised area;
- joining the two halves;
- pouring concrete into the mold and allowing the concrete to set;
- moving the top shuttering up to free the top shuttering from the concrete;
- moving the bottom and middle shuttering down to free the bottom and middle shuttering from the concrete;
- and
- removing the two halves from the concrete form the protective element.
A mold for making a concrete protective element for a breakwater, the protective element having a plate-shaped base and two projections extending from opposite sides of the base, the mold comprising:
- two mold halves that each defines half of said protective element and that are structured to hold concrete,
- each of said two mold halves having bottom shuttering that defines half of a first of the two projections, middle shuttering that is attached to said bottom shuttering and defines half the base, and top shuttering that is movably attached to said middle shuttering and that defines half of a second of the two projections, said middle shuttering having a lower surface with an opening to said bottom shuttering,
- said top shuttering having means for lifting said top shuttering up to separate said top shuttering from said middle shuttering, and
- said lower surface of said middle shuttering carrying wheels on which the respective half of said mold slidably rests.
Dependencies are inferred from the claim text.