Adjustable porous groynes and method for shoreline reclamation
DCFirst Claim
1. A method of reclaiming land along a shoreline or offshore by causing the deposit and retention of particulate material utilizing a plurality of spaced groynes, each groyne including a plurality of spaced stanchions which support at least one screen means having upper and lower portions and side edges, and the at least one screen means being elevatable with respect to material being deposited and wherein the screen means is formed having a plurality of openings therethrough through which water will flow and cause the particulate material to deposit but which are of the size to prohibit passage of larger solid material carried in tidal currents comprising the steps of:
- a) placing the stanchions in spaced relationship relative to one another extending from the shoreline or offshore;
b) mounting the at least one screen means to the spaced stanchions so that the lower portion thereof is engageable with the shoreline or offshore to thereby create a buildup of newly deposited solid materials adjacent the lower portion thereof;
c) preserving the buildup of newly deposited solid materials by periodically elevating at least the lower portion of the at least one screen means so that the lower portion thereof is maintained substantially at the height of newly deposited solid materials.
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Abstract
A method for shoreline reclamation which includes utilizing groyne structures including stanchions to which are mounted at least one porous screen and wherein the screen is vertically adjustable as material is deposited during the reclamation process.
42 Citations
14 Claims
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1. A method of reclaiming land along a shoreline or offshore by causing the deposit and retention of particulate material utilizing a plurality of spaced groynes, each groyne including a plurality of spaced stanchions which support at least one screen means having upper and lower portions and side edges, and the at least one screen means being elevatable with respect to material being deposited and wherein the screen means is formed having a plurality of openings therethrough through which water will flow and cause the particulate material to deposit but which are of the size to prohibit passage of larger solid material carried in tidal currents comprising the steps of:
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a) placing the stanchions in spaced relationship relative to one another extending from the shoreline or offshore; b) mounting the at least one screen means to the spaced stanchions so that the lower portion thereof is engageable with the shoreline or offshore to thereby create a buildup of newly deposited solid materials adjacent the lower portion thereof; c) preserving the buildup of newly deposited solid materials by periodically elevating at least the lower portion of the at least one screen means so that the lower portion thereof is maintained substantially at the height of newly deposited solid materials. - View Dependent Claims (2, 3, 4, 5)
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6. A porous groyne for shoreline and offshore reclamation comprising:
a plurality of spaced stanchions, at least one screen means supported between said stanchions, said screen means having an upper portion and a lower portion and having a plurality of openings therein through which water and some suspended solids may pass, means for supporting said screen means relative to said stanchions and elevating means for periodically elevating said lower portion of said screen means relative to said stanchions so that the lower portion thereof is maintained substantially at the height of newly deposited solid materials. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13, 14)
Specification