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CROSS-REFERENCE TO RELATED APPLICATIONS 
       [0001]    Priority of U.S. Provisional Patent Application Ser. No. 61/833,834, filed 11 Jun. 2013, which is hereby incorporated herein by reference, is hereby claimed. 
         [0002]    This application is related to U.S. patent application Ser. No. 13/364,114, filed 1 Feb. 2012, entitled “FLOOD WALL PROTECTION SYSTEM” (issued as U.S. Pat. No. 8,672,585 on Mar. 18, 2014); pending U.S. patent application Ser. No. 13/422,593, filed 16 Mar. 2012, entitled “FLOOD WALL PROTECTION SYSTEM” (published as No. US2012-0230766A1 on 13 Sep. 2012); and pending U.S. patent application Ser. No. 13/492,492, filed 8 Jun. 2012, entitled “FLOOD WALL PROTECTION SYSTEM” (published as No. US2013-0094905A1 on 18 Apr. 2013), each of which is hereby incorporated herein by reference thereto. 
     
    
     STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT 
       [0003]    Not applicable 
       REFERENCE TO A “MICROFICHE APPENDIX” 
       [0004]    Not applicable 
       BACKGROUND OF THE INVENTION 
       [0005]    1. Field of the Invention 
         [0006]    The present invention relates to flood barrier walls. The present invention relates to a barrier system constructed of interconnected fabric bags or cells or containers filled with material, such as sand, each bag having the capability to disengage the bottom of the bag, and allow the bag to be lifted from the material held therein, and the material to remain in place on the ground upon which it had been set to continue to function as a barrier wall. 
         [0007]    2. General Background of the Invention 
         [0008]    The art of building temporary flood walls is well known. The most commonly known method is to fill small bags full of sand and to stack them up in a pyramid fashion to hold back flood waters. These small bags may weigh, for example, between 50 and 100 pounds. Building flood walls with this method involves a lot of labor and time. 
         [0009]    It is also well known in the art that once flexible fabrics are formed into continuous cellular walls, and filled with sand and dirt, it forms a solid barrier against water. However, filling these flexible containers on banks along rivers and shore lines is not an easy task. The flexible walls must be properly supported until the containers are filled. One such method accomplishes this by using a large metal sled that supports each portion of the cellular wall as it is filled. The sled may then be pulled along a horizontal line until it clears the filled cell and new unfilled cells are opened and supported under the sled, waiting to be filled. 
         [0010]    Existing methods support each cell&#39;s corner with a special plastic hangar that is not readily available and is therefore expensive. These plastic hangars can only be used a single time. As two hangars are used every two feet of the wall, the costs of these special parts add up over the course of each mile of wall that is placed. Further, with only the corners supported, there is noticeable sagging of the cellular walls as each cell is filled. This sagging creates uneven tensions on the four holders. The uneven tension can often overload individual hangars and cause them to fail during the movement of the sled. 
         [0011]    The individual cells of the wall can be filled with up to 7,000 pounds of sand or dirt. After filling, the sled moves horizontally. The hangars must slide along metal rails until they clear the sled. Under this tremendous weight, these hangars can fail and cause the cells to drop from the sled prematurely. 
         [0012]    Other methods involve simply piling truckloads of sand and dirt on top of levees. But while this method is fast, it is prone to washouts as the sand and dirt is uncontained against the flow of water. 
         [0013]    Still another method uses open top bulk bags with wooden frames inside them which are bolted together in a cellular fashion to create vertical long walls that are then filled with sand and dirt. This method is a fairly fast method for constructing walls but has the expense of the wood and is limited to vertical walls that can be pushed over by fast moving flood waters, or collapsed from beneath as the flood waters hollow out the ground beneath them. 
         [0014]    Still another method uses specially shaped bags that have triangular shaped sides. These bags are delivered using a large sled device that makes filling easier and faster than the methods listed above. However, this sled device relies on a bag support method that requires special parts to support each bag by its four corners that can be expensive and unreliable. Further the triangular shaped front of the containers are often unfilled due to the containers pointed toe. Due to the wave action of the flood waters, the sand and dirt can move after placement and cause some loss of control over its shape. And, just as the square bags can be hollowed out from below, so can this triangular faced design. 
         [0015]    In short, the prior art methods of flood control that utilize flexible materials still have shortcomings that need to be addressed. 
       SUMMARY OF THE PRESENT INVENTION 
       [0016]    The present invention solves the problems in the art in a simple and straightforward manner. What is provided is a method of constructing, and a system of utilizing, a removable flexible bag or container or cell by providing a flexible bag or container or cell of the type having sidewalls, a sloping front wall and a vertical rear wall to define a space for holding material, such as sand; forming a bottom, which comprises a pair of panels, each panel extending two feet under the bag when the bag is filled with material; folding each panel back onto itself to end at the nearest edge; securing loops onto the end of each panel, which extend from out of the front and rear of the bag; securing the ends of the bag beneath the bag while the bag is being filled with material; pulling the loops away from the bag to pull the panels from under the bag so that the contents of the bag are exposed to the ground beneath the bag; and lifting the bag upward and away from the material contents of the bag, the material contents to remain in place on the ground upon which it had been set to continue to function as a barrier wall. 
         [0017]    In an embodiment of the method of the present invention, each of the bottom panels are four feet long, with two feet set under the bag, and two feet folded back onto itself, and wherein the lifting loops extend one foot out from under the bag; and wherein the ends of the panels are secured under the bag, with the use of a hog ring on each panel, for example; and wherein after the bag is lifted away, the bag is cleaned, the bottom panels are re-secured in place, and the bag is stored for further use; and wherein the bag may be a group of a plurality of bags interconnected with each bag having its own bottom panels to operate as disclosed. 
         [0018]    An embodiment of the present invention comprises a method of constructing a removable flexible bag, comprising: a) providing a flexible bag of the type having sidewalls, a sloping front wall and a vertical rear wall to define a space for holding material, such as sand; b) forming a bottom, which comprises a pair of panels, each panel extending two feet under the bag when the bag is filled with material; c) folding each panel back onto itself to end at the nearest edge; d) securing loops onto the end of each panel, which extend from out of the front and rear of the bag; e) securing the ends of the bag beneath the bag while the bag is being filled with material; f) pulling the loops away from the bag to pull the panels from under the bag so that the contents of the bag are exposed to the ground beneath the bag; and g) lifting the bag upward and way from the material contents of the bag. 
         [0019]    In another embodiment of the method of the present invention, each of the bottom panels are four feet long, with two feet set under the bag, and two feet folded back onto itself. 
         [0020]    In another embodiment of the method of the present invention, the lifting loops extend one foot out from under the bag. 
         [0021]    In another embodiment of the method of the present invention, the ends of the panels are secured under the bag with the use of a hog ring on each panel. 
         [0022]    In another embodiment of the method of the present invention, after the bag is lifted away, the bag is cleaned, the bottom panels are re-secured in place, and the bag is stored for further use. 
         [0023]    In another embodiment of the method of the present invention, the bag may be a group of a plurality of bags interconnected with each bag having its own bottom panels to operate as claimed herein. 
         [0024]    Another embodiment of the present invention comprises a method of using a removable flexible bag or cell, comprising the steps of: a) providing a flexible bag of the type having sidewalls, a sloping front wall and a vertical rear wall to define a space for holding material, such as sand; b) forming a bottom, which comprises a pair of panels, each panel extending two feet under the bag when the bag is filled with material so that the four foot bottom of the bag is defined by the two panels; c) folding each panel back onto itself to end at the nearest edge; d) securing loops onto the end of each panel, which extend from out of the front and rear of the bag; e) securing the ends of the bag beneath the bag while the bag is being filled with material; f) filling the bag with material, such as sand; g) pulling the loops away from the bag to pull the panels from under the bag so that the contents of the bag are exposed to the ground beneath the bag; and h) lifting the bag upward and way from the material contents of the bag. 
         [0025]    Another embodiment of the present invention comprises a removable flexible bag, comprising: a) a flexible bag of the type having sidewalls, a sloping front wall and a vertical rear wall to define a space for holding material, such as sand; b) a bottom portion, which comprises a pair of panels, each panel being four feet in length; c) each panel back folded onto itself so that each panel is two feet in length under the bag, and the end extends out to end at the nearest edge; d) a hog ring for securing each panel under the bag when material is poured into the bag; e) a loop secured to the end of each panel, which extend from out of the front and rear of the bag; and f) the loops pulled away from the bag to pull the panels from under the bag so that the contents of the bag are exposed to the ground beneath the bag, so the bag can be lifted upward and way from the material contents of the bag. 
         [0026]    In another embodiment of the removable flexible bag of the present invention, each of the bottom panels are four feet long, with two feet set under the bag, and two feet folded back onto itself. 
         [0027]    In another embodiment of the removable flexible bag of the present invention, the lifting loops extend one foot out from under the bag. 
         [0028]    In another embodiment of the removable flexible bag of the present invention, the ends of the panels are secured under the bag with the use of a hog ring on each panel. 
         [0029]    In another embodiment of the removable flexible bag of the present invention, the bag is lifted away, the bag is cleaned, the bottom panels are re-secured in place, and the bag is stored for further use. 
         [0030]    In another embodiment of the removable flexible bag of the present invention, the bag may be a group of a plurality of bags interconnected with each bag having its own bottom panels to operate as claimed and disclosed herein. 
     
    
     
       BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWINGS 
         [0031]    For a further understanding of the nature, objects, and advantages of the present invention, reference should be had to the following detailed description, read in conjunction with the following drawings, wherein like reference numerals denote like elements and wherein: 
           [0032]      FIG. 1  illustrates a side view of an empty flexible cell or bag ready to be filled in an embodiment of the present invention; 
           [0033]      FIG. 2  illustrates a flexible bag or cell filled with sand in an embodiment of the present invention; 
           [0034]      FIG. 3  illustrates a bottom flap and pull straps in an embodiment of the flexible bag or cell of the present invention; 
           [0035]      FIGS. 4A and 4B  illustrate the first steps for removal of the flexible bag or cell in an embodiment of the method of the present invention; 
           [0036]      FIG. 5  illustrates the step of lifting the flexible bag or cell straight up and off filler sand in an embodiment of the method of the present invention; 
           [0037]      FIG. 6  illustrates reattaching the bottom panels to the flexible bag or cell in an embodiment of the method of the present invention; 
           [0038]      FIG. 7  illustrates an overall view of a group of flexible bags or cells with the removal sleeves in place, in an embodiment of the present invention; 
           [0039]      FIG. 8  illustrates constructing side panels of a flexible bag or cell in an embodiment of the present invention; 
           [0040]      FIGS. 9A-9C  illustrate constructing sleeves of a flexible bag or cell in an embodiment of the present invention; 
           [0041]      FIG. 10  illustrates a side view of the sleeve attachment process in an embodiment of the present invention; 
           [0042]      FIG. 11  illustrates adding the lifting structure to a flexible bag or cell in an embodiment of the present invention; 
           [0043]      FIG. 12  illustrates the printing step on a flexible bag or cell in an embodiment of the present invention; 
           [0044]      FIG. 13  illustrates the addition of a pull loop to a vertical panel in an embodiment of the present invention; 
           [0045]      FIG. 14  illustrates the addition of pull loops to a sloped panel in an embodiment of the present invention; 
           [0046]      FIG. 15  illustrates one main panel being sewn to two side panels in an embodiment of the present invention; 
           [0047]      FIG. 16  illustrates the addition of a sloped panel in an embodiment of the present invention; 
           [0048]      FIG. 17  illustrates the addition of the next center panel in an embodiment of the present invention; 
           [0049]      FIG. 18  illustrates the addition of more vertical and sloped panels in an embodiment of the present invention; 
           [0050]      FIG. 19  illustrates making a removal panel in an embodiment of the present invention; 
           [0051]      FIG. 20  illustrates adding a removal panel to the side wall in an embodiment of the present invention; 
           [0052]      FIG. 21  illustrates the attachment of loose ends to center panels in an embodiment of the present invention; 
           [0053]      FIG. 22  illustrates the packing of the completed chains of a group of flexible bags or cells in an embodiment of the present invention; 
           [0054]      FIG. 23  illustrates three photos of the process of filling the reusable flexible bags or cells in an embodiment of the present invention; 
           [0055]      FIG. 24  illustrates three photos of the removal of the bottom flaps on the vertical side in an embodiment of the present invention; 
           [0056]      FIG. 25  illustrates three photos of the removal of the flaps from the toe of a flexible bag or cell in an embodiment of the present invention; 
           [0057]      FIG. 26  illustrates three photos of the partially lifted off cells in an embodiment of the present invention; 
           [0058]      FIG. 27  illustrates two photos of completely lifted off cells in an embodiment of the present invention; 
           [0059]      FIG. 28  illustrates the undamaged and ready for reuse group of flexible bags or cells in an embodiment of the present invention; and 
           [0060]      FIG. 29  illustrates the liftoff and storage of the reusable flexible bags or cells in an embodiment of the present invention. 
       
    
    
     DETAILED DESCRIPTION OF THE INVENTION 
       [0061]      FIGS. 1 through 29  illustrate the preferred embodiment of the reusable and removable flexible bag or cell flood wall protection system and method of the present invention. As illustrated in  FIG. 1 , there is a side view of an empty flexible bag or cel or container ready to be filled, illustrating a side or center panel  11  or  12 . A bottom portion  14  is shown, comprising two panel portions  14   a  and  14   b  as shown, each panel  14   a,    14   b  extending 2 feet under the bag when it is in the filled position. A center opening  22  between the panel portions  14   a,    14   b  is also shown. Each bottom panel portion  14   a,    14   b  are folded back under the bag towards its nearest edge, and each bottom panel portion  14   a,    14   b  ends with loops  16  designed to allow the bottom panel portion to be pulled out from under the bag. It should be noted that hog rings  17  hold unsewn panels  14   a  and  14   b,  in position while sand is poured into each cell or bag. Other suitable attachments may also be used to temporarily secure panels, which are not sewn, in position while sand is poured into each bag or cell. 
         [0062]    Turning now to  FIG. 2 , there is illustrated the flexible cell or bag  10  filled with sand  18 . In this illustration, sand  18  has been added to the cell  10  and lays on top of the removable bottom panels  14   a,    14   b.  A reusable embodiment features an incomplete bottom. The center portion or opening  22  of the bottom is completely open. 
         [0063]    In  FIG. 3 , a pair of bottom flap pull straps or loops  16  are illustrated on a bottom panel  14   a,  or  14   b.  In a preferred embodiment, each bottom panel  14   a,    14   b,  is four feet long and a pair of one foot long webbing loops  16 , for example, are attached as shown. Two feet of each panel  14   a,    14   b  reaches into the cell  10  and two feet fold back under the cell  10  back to the edge of the flexible cell  10 . The webbing loops  16  may be one foot long and extend out from under the cell  10  for easy access, for removal and reuse. 
         [0064]      FIGS. 4A and 4B  show the first steps in a preferred embodiment of the method of the present invention for removal of the flexible bag or cell. Soft metal rings, for example a hog ring  17 , can be threaded through a side panel  11 ,  12  and bottom panel  14   a,    14   b,  to hold it in place during filling. In  FIG. 4A , there is illustrated that when it is time to remove the flexible bags or cells, the method comprises pulling on the loops  16  to detach the hog rings  17  and allow the fabric to peel back under itself. In  FIG. 4B  it is illustrated that once the flaps are pulled out, there is nothing holding the flexible bag or cell  10  to the filler sand. 
         [0065]    In  FIG. 5 , a flexible cell  10  has been lifted straight up and off the filler sand  18 . The flexible cell  10  can then be cleaned with hoses, for example, to remove the remaining sand  18 . 
         [0066]    In  FIG. 6 , the reattachment of the bottom panels is illustrated. One would fold bottom flaps  14   a,    14   b  back under the flexible bag or cell  10  as illustrated, and the hog ring  17  or other suitable temporary attachment means would be set into place. The bag may be folded and stored until needed. 
         [0067]    An embodiment of the removable flexible cell or bag system of the present invention comprises a series of identical chambers that are sewn together to make a continuous cell wall  35 . In a preferred embodiment, the method of constructing a continuous cellular wall of the removable flexible cell or bag system, comprises building every other chamber completely, then connecting the completed chambers with a single main panel. A completed cell wall in a preferred embodiment would be comprised of 31 completed chambers and one connection chamber that is essentially an open chamber at the end of the string of chambers. An embodiment of the present invention would be made up of 17 complete chambers and 18 extra main panels. The system may be constructed in a series of steps, similar to those used in bulk bag production, except for the final stage of putting together the chain of bags. 
         [0068]    In an embodiment of the present invention, each chamber will have two sleeves of fabric  19  near the top opening of each chamber or cell  10 . These sleeves will provide support for the chambers during the filling and emptying process. These sleeves  19  may be added to each side panel  11 ,  12  prior to the production of the actual chamber. 
         [0069]    Turning now to  FIG. 7 , there is illustrated a group of flexible bags or chambers  10  sewn together with the bottom removal sleeves or loops  16  in place as illustrated. 
         [0070]      FIG. 7  further illustrates dimensional details of a flexible bag or cell  10  and cellular wall  35  comprising a chain or bags or cells  10 , in a preferred embodiment of the present invention. As shown, “A” represents a vertical height, of a back or vertical panel portion  15 . “B” represents a base length of bottom portion  14  (which is equal to A+62 CM in a preferred embodiment). “C” represents a height of a front toe  20 . “D” represents length of a diagonal or sloping face portion  13 . “E” represents a length of fill mouth or opening  21 . “F” represents a finished width of a main panel and width of filling mouth or opening  21 . “G” represents a main or sloping panel  13  and may be equal to C+D+12 CM. “H” represents a toe anchor panel which may be 62 CM. “I” represents a vertical back panel  15  which is equal to A+31 CM in a preferred embodiment. “J” represents a removal loop or sleeve  16  which may be 35 CM. 
         [0071]    Dimensions may further be as follows:
       A=138 CM   B=184 CM   C=31 CM   D=136 CM   E=100 CM   F=100 CM   G=C+D+12 CM   H=45 CM   I=15 CM   J=35 CM       
 
         [0082]    In a preferred embodiment, dimensionally, a horizontal height “B” will be 46 centimeters longer than the vertical height “A”. The toe front  20  will be 31 centimeters tall. A reusable embodiment features an incomplete bottom  14 . The center portion  22  of the bottom  14  is completely open. The outer portions  14   a,    14   b  are only slightly attached so that it can easily break free without damage during removal for reuse. A reusable embodiment also features pull straps  16  that will allow the bottom flaps to be pulled from beneath the load to free the filler sand  18  without damage. In a preferred embodiment, the lifting sleeves are strong enough to lift up to 6,000 pounds from the ground to allow easy removal of the flaps. However, the 5 to 1 safety ratio is not in play. 
         [0083]      FIG. 8  illustrates constructing of the side panels, wherein one makes one cut to both sides of a flexible sheet  23  of fabric or material. One would cut the sheet  23  at 148 centimeters×333 centimeters, then cut this sheet in a diagonal manner as shown. Parts marked by “X” are either cut off or folded out of the way. Hem the entire panels with 5 centimeter fold to make completed side panels  11 ,  12 . 
         [0084]    In  FIGS. 9A-9C  there is illustrated the sleeve  19  construction of a bag or cell  10 . One would cut a 200 GSM sheet  24  of fabric or material, for example, to size  114 , 110 centimeters. One would sew the hem  25  on the two edges to create a sheet  114  by 100 centimeters. One would then fold panel at  26  to create one side 12 centimeters longer than the other side as illustrated. 
         [0085]    In  FIG. 10 , the process of sleeve  19  attachment is illustrated. In a preferred embodiment the fabric tunnel of the sleeve  19  at the top has a 25 centimeter lay flat. A sleeve  19  may be pre-attached to the panel with three sew lines  27 . In a preferred embodiment, one would position the sleeve  19  so that 25 centimeters of the sleeve extends above the side panel  11 ,  12 , with one sew line that is 5 centimeters from the bottom, one would have a sew line 5 centimeters above the bottom of the short side and one sew line 3 centimeters from the top of the side panel. In a preferred embodiment the sleeve  19  is positioned even with vertical side edge. 
         [0086]    In  FIG. 11  there is illustrated adding the lifting structure where one attaches 138 centimeters by 5 centimeter webbing with 4,500 pounds tinsel strength to long vertical side and zigzag sewing  28  attached for 25 centimeters at top to attach sleeve  19 . An embodiment of the present invention further comprises 25 centimeter lift loops  30  at the toe. One folds a 100 centimeter by 5 centimeter piece of webbing loop in half and zigzags to the vertical portion of toe  20  panel as shown. This will form a 25 centimeter lift loop  30  at the toe. 
         [0087]    When the units are complete, in a preferred embodiment fill openings  21  are 1 meter×1 meter. They are hemmed on all four sides with a 1 meter long sleeve  19  that has a 5 centimeter hem on each side that is even with the vertical edge of the center panel. For the connecting panels, the connecting panels will now be in two parts, each may be made of a 200 GSM sheet. There are two connecting panels for each cell. The panel for the vertical side  15  will be cut 184 centimeters×112 centimeters and hemmed 5 centimeters on all four sides. The panel for the slope side  13  will be cut 222 centimeters×112 centimeters and hemmed 5 centimeters on all four sides. Printing may be included on a cell and in a preferred embodiment will be oriented to start 40 centimeters from one edge, will then be placed near the fill opening when sewn into the cells. When attaching panels to center panels, a 1 centimeter same depth is preferred. Cells may also be in different colors, for example tan. If information, e.g. trademarks or contact information, is printed on the bag, such printing may be about 40 centimeters tall, with other printing being less tall, for example 10 centimeters. Printing may be, for example, on all panels near the top which is hemmed, or could be added to other locations as desired. 
         [0088]    In  FIG. 13 , there is shown adding the pull loops to the vertical side to the connection panels, while in  FIG. 14  there is illustrated adding the pull loops to the sloped panels as illustrated in the Figure. A vertical panel  14  may be 174 CM after hemming For a vertical panel, 5 CM wide webbing may be used, cut at 132 CM. Form one 31 CM long loop on free end by zigzagging 12 CM as shown. In a preferred embodiment, it will be attached to an unprinted side by zigzagging 12 CM as shown. A sloped panel  13  may be 212 CM after hemming For a sloped panel one may use 5 CM wide webbing cut 144 CM. Form one 31 CM long loop on free end by zigzagging 12 CM as shown. In a preferred embodiment, it will be attached to an unprinted side by zigzagging 12 CM as shown. 
         [0089]    In  FIG. 15 , there is illustrated sewing one main panel or vertical panel  15  to a side panel  11 ,  12 . The vertical panel may be sewn with a 5 centimeter fold to each center or side panel  11 ,  12  on the vertical side. At the bottom, turn the corner and sew for 3 centimeters then run off This will leave 28 centimeters unsewn. The unsewn flap will be slightly anchored in place later. 
         [0090]    In  FIG. 16 , there is illustrated adding the sloped panel  13 . One may sew the sloped panel  13  in the same manner as discussed above. In a preferred embodiment, only 5 centimeters is sewn to the bottom of the center or side panel  11  or  12  then the seam should stop and leave 10 centimeters unattached. 
         [0091]    In  FIG. 17 , there is illustrated adding the next center or side panel  11 ,  12  by sewing the next center panel to the vertical  15  and sloped  13  panels, wherein a 5 centimeter fold is made in a preferred embodiment. 
         [0092]    In  FIG. 18  one would add more vertical and sloped panels as illustrated in continuing the process of the present invention. One would continue this process until one would have 31 complete chambers and a 32 nd  chamber that has sloped and vertical panels but no ending center or side panel,  11 ,  12 . This last chamber is a connection chamber to the next flexible cell or bag string. The last or 32 nd  chamber may look like the left hand chamber illustrated in  FIG. 18 . 
         [0093]    In  FIG. 19  there is illustrated the process of making the removal panels from 200 GSM sheet as illustrated in the Figure. The sheet  31  may be 32.5 meters long by 147 centimeters wide. A 47 centimeter fold  32  may be made in the sheet  31  to make it a total of 1 meter wide. Sew flap down twice to make open sleeve with 31 cm lay flat. Sew lines  33  are shown in the figure. 
         [0094]    In  FIG. 20  there is illustrated adding a removal panel  14   b  in an embodiment of the present invention. The removal panel  14   b  is double sewn to a loose portion of sloped panel  13  with sleeve  34  laying beyond the toe  20  by 32 centimeters. Once sewn, total length from front of the toe  20  to end of removal panel  14   b  is 67 centimeters, plus or minus 5 centimeters, in a preferred embodiment. Note that the removal panel  14   b  may extend past a first chamber by 0.5 meters. This sleeve  34  will be capable of supporting a lot of weight as it lifts the toe for removal from the sand. 
         [0095]    In  FIG. 21 , there is illustrated the attachment of loose ends to the center panels. Loose ends of all panels  14   a,    14   b  are attached to center or side panels  11 ,  12  in a break away fashion in a preferred embodiment. Soft metal rings, for example a hog ring  17 , can be threaded through a side panel  11 ,  12  and bottom panel  14   a,    14   b,  to hold it in place during filling. During emptying, as the flexible bag  10  is lifted upwards, the rings  17  will easily bend and release.  FIG. 21  illustrates completing the manufacturing of a chain of the flexible bags. 
         [0096]    A completed chain or wall  35  may be folded accordion style by gusseting connection panels and lining center panels flat to each other in the manner to illustrate the packing of completed chains as set forth on a pallet  36  as seen in  FIG. 22 . In a preferred embodiment, each chain is packed with an open final chamber down on the pallet first. In the final packing, one may add the cover bag and strap to the pallet. One may add identifying tags or trademarks, dimension information, company contact information and other information regarding where the product was made, for example, to the flexible bags or cells  10 . A tag may read for example “1.2 meter tall reusable flexible bag.” 
         [0097]    In the procedures for use of the removable flexible bag or cell, there is illustrated in  FIG. 23  three photographs, which depict procedures for single application design with one additional requirement. In the embodiment of the method as shown, all flap loops  16  are kept extended to the outside of the bag. Positioning flap loops  16  so they are extended to the outside of the bag allows them to be available to assist in pulling the bottom flaps from under the filler when it is time to remove the flexible bag or container. 
         [0098]    In  FIG. 24  there is illustrated three photos showing the removal of the bottom flaps on the vertical side. One would lift the vertical side of the flexible bag or container with a forklift, for example, or any appropriate powered lifting device, threaded through sleeves  19 . Lift far enough to remove pressure from the flaps. Each flap  14   a  has two pull loops. Pull the loops  16  together to extract the flap  14   a  from beneath the filler material or sand  18 . Repeat the process with neighboring cells until all the flaps  14   a  are extracted from the vertical side. 
         [0099]    In  FIG. 25 , the three photos show the removal of flaps  14   b  from the toe portion  20  of the flexible bag or container  10 . Using loops  30  on top of the toe  20  on the sloped side, raise the bag to take pressure off the bottom flaps. Using pull loops  16 , pull the bottom flaps  14   b  from the filler materials, continue with adjacent cells until all bottom flaps  14   b  are free. 
         [0100]    In  FIG. 26  there are the photos which show the process of partially lifting off cells or bags  10 . One would start on one side and lift 8 inches, for example, and then move two cells and repeat. Repeat this procedure until tie in for next line of flexible bag or cell is met. Cut connecting ties and continue 8 inch lifts. Proceed until the entire line has been partially lifted. 
         [0101]    In  FIG. 27  there are illustrated two photos showing the bag completely lifted off the cells. After lifting off entire cells one would clean each section, secure hog ring flaps  17  back into place, fold and pack for reuse. 
         [0102]    In  FIG. 28 , there is illustrated an undamaged group or chain of flexible bags or containers or cells, ready for reuse while in  FIG. 29  there is illustrated the flexible bags or containers being lifted off and readied for storing. Now that the entire bottom has been easily removed, simply lift the flexible bag or container off the filler in sequential stages. The flexible bag or container will be durable and difficult to damage in a preferred embodiment. Wash the flexible bag or container to remove excess dirt, reapply hog rings to bottom and position during fill. Fold and store for next use. 
         [0103]    The following is a list of parts and materials suitable for use in the present invention: 
         [0000]    
       
         
               
             
               
               
             
           
               
                   
               
               
                 PARTS LIST 
               
             
          
           
               
                 Number 
                 Description 
               
               
                   
               
               
                 10 
                 removable and reusable 
               
               
                   
                 flexible bag or cell 
               
               
                 11 
                 side panel 
               
               
                 12 
                 side panel 
               
               
                 13 
                 sloping panel 
               
               
                 14 
                 bottom portion 
               
               
                  14a 
                 bottom panel portion 
               
               
                     14b 
                 bottom panel portion 
               
               
                 15 
                 back or vertical panel 
               
               
                 16 
                 bottom loop 
               
               
                 17 
                 ring 
               
               
                 18 
                 filler material/sand 
               
               
                 19 
                 fabric sleeve 
               
               
                 20 
                 toe portion 
               
               
                 21 
                 fill opening 
               
               
                 22 
                 bottom center opening 
               
               
                 23 
                 sidewall sheet 
               
               
                 24 
                 sleeve sheet 
               
               
                 25 
                 hem 
               
               
                 26 
                 fold 
               
               
                 27 
                 sew line 
               
               
                 28 
                 zigzag sewing 
               
               
                 30 
                 toe loop 
               
               
                 31 
                 sheet 
               
               
                 32 
                 fold 
               
               
                 33 
                 sew line 
               
               
                 34 
                 sleeve 
               
               
                 35 
                 cell wall 
               
               
                 36 
                 pallet 
               
               
                   
               
             
          
         
       
     
         [0104]    All measurements disclosed herein are at standard temperature and pressure, at sea level on Earth, unless indicated otherwise. All materials used or intended to be used in a human being are biocompatible, unless indicated otherwise. 
         [0105]    The foregoing embodiments are presented by way of example only; the scope of the present invention is to be limited only by the following claims.

Summary:
A method of constructing and a system of utilizing a removable flexible bag or cell by providing a flexible bag or container or cell of the type having sidewalls, a sloping front wall and a vertical rear wall to define a space for holding material, such as sand; forming a bottom, which comprises a pair of panels, each panel extending two feet under the bag when the bag is filled with material; folding each panel back onto itself to end at the nearest edge; securing loops onto the end of each panel, which extend from out of the front and rear of the bag; securing the ends of the bag beneath the bag while the bag is being filled with material; pulling the loops away from the bag to pull the panels from under the bag so that the contents of the bag are exposed to the ground beneath the bag; and lifting the bag upward and way from the material contents of the bag, the material contents to remain in place on the ground upon which it had been set to continue to function as a barrier wall.