Shoreline Sand Protection System and Method

Abstract

A system suitable for protecting shoreline or other target area/zone includes a geotextile sheet having an upper edge and a lower edge, the upper edge including a first channel through which a first draw cord is threaded, and the lower edge including a second channel through which a second draw cord is threaded. A flap has a lower portion affixed to the geotextile sheet proximal to its lower edge. The flap can further include un upper portion affixed to the geotextile sheet proximal to its upper edge, where the flap and the geotextile sheet form an enclosure.

1 . A protection system, comprising:
 a geotextile sheet having an upper edge and a lower edge, the upper edge including a first channel through which a first draw cord is threaded, the lower edge including a second channel through which a second draw cord is threaded;   a flap having a lower portion affixed to the geotextile sheet proximal to its lower edge;   at least one first anchor rope coupled with the first draw cord on a first end and a first anchor on a second end; and   at least one second anchor rope coupled with the second draw cord on a first end and a second anchor on a second end.   
     
     
         2 . The system of  claim 1 , wherein the flap includes an un upper portion affixed to the geotextile sheet proximal to its upper edge, wherein the flap and the geotextile sheet forms an enclosure. 
     
     
         3 . The system of  claim 1 or claim 2 , wherein the geotextile sheet is formed of a knitted polyethylene material. 
     
     
         4 . The system of  claim 1 or claim 2 , wherein the geotextile sheet is formed of a biodegradable polymer material. 
     
     
         5 . The system of  claim 1 or claim 2 , wherein the flap is formed of a fabric material. 
     
     
         6 . The system of  claim 1 or claim 2 , wherein the lower portion of the flap is permanently affixed to an inner side of the geotextile sheet. 
     
     
         7 . The system of  claim 2 , wherein the upper portion of the flap is affixed to an inner side the geotextile sheet via pins. 
     
     
         8 . The system of  claim 2 , further comprising a filling material contained in the enclosure. 
     
     
         9 . The system of  claim 1 or claim 2 , wherein a bottom portion of the geotextile sheet is configured to form a protrusion in which rocks are filled. 
     
     
         10 . The system of  claim 1 or claim 2 , wherein the flap is installed against a slope of a coast. 
     
     
         11 . The system of  claim 2 , wherein the first anchor is driven into ground underneath the enclosure such that the first anchor rope is substantially vertical. 
     
     
         12 . The system of  claim 2 , wherein the second anchor is driven into a side of the subgrade such that the second anchor rope is substantially horizontal. 
     
     
         13 . The system of  claim 1 or claim 2 , wherein the at least one first anchor rope comprises a plurality of first anchor ropes. 
     
     
         14 . The system of  claim 1 or claim 2 , wherein the at least one second anchor rope comprises a plurality of second anchor ropes. 
     
     
         15 . A method of installing a protection system in a target zone, the system comprising a geotextile sheet having an upper edge and a lower edge, the upper edge including a first channel through which a first draw cord is threaded, the lower edge including a second channel through which a second draw cord is threaded; a flap having a lower portion affixed to the geotextile sheet proximal to the lower edge thereof; at least one first anchor rope coupled with the first draw cord on a first end and a first anchor on a second end; and at least one second anchor rope coupled with the second draw cord on a first end and a second anchor on the second end, the method comprising:
 filling a filling material into a void formed by the geotextile and the flap;   coupling an upper portion of the flap against a portion of the geotextile sheet proximal the upper edge, thereby forming an enclosure enclosing the filling material;   driving the at least one first anchor and the at least one second anchor into a stable subgrade of the target zone, thereby tightening the enclosure.   
     
     
         16 . The method of  claim 15 , further comprising:
 covering the enclosure with backfilled sand.   
     
     
         17 . The method of  claim 15 , wherein the target zone is a shoreline.