JP2001064933A - Bag material for civil engineering work and bagging method for fill material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a bag material for civil engineering works and the bagging method for a fill material, by which the damage of a bag generated in the case of the filling of the fill material or in the case of its usage is prevented. SOLUTION: The bag body for civil engineering works is composed of synthetic-fiber yarn strips, and used by filling a fill material in which the bag is formed of the net fabric 1 of a non-knot net or a knot net in which sections among knitted knot sections 2a and the knitted knot sections 2a are knitted by two net legs. The bag materials for civil engineering works and bags arranged in a frame are filled with the fill material and opening sections are clamped, and the frame is pulled upwards and the bags are extracted.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bag formed of a net knitted with synthetic fiber yarns, which is filled with medium-filled materials such as cobblestones, split stones and concrete lumps, and is used for the roots of rivers and coasts. The present invention relates to a method of packing bags for civil engineering works and filling materials used for stiffening works, scour prevention works such as piers, various drain works, revetment revegetation works, construction of underwater structures and embankments, and the like.

[0002]

2. Description of the Related Art A bag made of a net formed of synthetic fiber yarns and packed with a filling material such as a stone is used for a burring work or a scouring prevention work. If the net yarn is damaged or cut in such a bag, the filling material may fall out of the netting during use of the bag. For this reason, one net is damaged by double-laying a net (hereinafter, referred to as a “one leg net”) in which a bag is knitted with one net between the braids. Even though the other one piece does not allow the filling material to escape, the double mesh net yarn often overlaps when filling the filling material or moving the bag temporarily. If an impact load is applied to the part where the wire is cut, there is a great risk that the net yarn will break. Also, when lifting and lowering, there is a danger of the net yarn being damaged due to the friction between the inner net and the outer net, and the inner net and the outer net are not evenly loaded, and the load is concentrated on one side of the net and the cut may occur. is there. Also, fabricating a bag material with two meshes takes more time for sewing than fabricating with a single mesh fabric, and particularly when fabricating a large bag, the fabric area is large and one mesh fabric is used. Has a problem that it is also heavy and it is difficult to overlap and sew it.

[0003] Further, the bag body filled with the filling material in the bag material for civil engineering work is lifted and lowered several times by a crane or the like for temporary placement, movement, installation, etc., so that the bottom of the bag body is Since a large load is applied and friction with the ground occurs, the bottom mesh is particularly likely to be damaged. When filling the filling material into the bag material for civil engineering work, as shown in FIG. 7, the bag is arranged in the production frame 14 having a wide opening above the bottom, and the filling material such as stone is put into the bag. Then, after filling, the opening of the bag is closed and the bag body 16 filled with the filling material is lifted with a crane and taken out of the production frame. As shown in FIG. 8, the bag made of synthetic fiber has the property of stretching because the impact colliding with the wall surface is large and the bag is easily broken. Until you leave,
There is a problem that the filling material presses the bag against the production frame, and the bag is easily rubbed and damaged.

[0004]

When the bag material is filled with a stone or the like as a filling material, the bag may be damaged during use, or the filling material may fall out from the damaged portion. In order to solve this problem, the present invention uses a net-structured bag in which the filling material is difficult to come out even if a part of the bag is damaged, and is easy to form, and the bottom of the bag which is easily damaged is hard to be damaged. It is formed into a bag, and when filling the bag with the filling material, it uses a bag packing method that does not easily break, and it is difficult to break during use and the filling material is difficult to escape. The task is to provide a packing method.

[0005]

Means for Solving the Problems The present invention is directed to "1. A knotless net or a knotted net made of synthetic fiber yarn and knitted with two nets between the knotted portions. 1. A bag material for civil engineering work, which is filled with a filling material in which a bag is formed with a mesh 2. The knitted mesh has a porosity of 45 to 90% and an elongation of 30.
８０80%, the mesh is 25 to 250 mm, the length L of one side of the mesh and the minor diameter cross-sectional circumference A of the lump to be filled in the bag.
Is a bag material for civil engineering work, which is filled with the filling material described in item 1 formed of a netting satisfying a relation of 4 × L × 1.8 ≦ A. 3. A mouth drawing rope is inserted into the mesh near the upper opening through a bag in which the mesh is sewn in a tubular shape, and a bottom drawing rope is inserted through the mesh near the lower opening to draw down the lower opening. The opening is tightened and a plurality of reinforcing ropes reaching the upper opening from the upper opening through the lower opening purse draw-down portion are attached and filled with the filling material described in the item 1 or 2. , Bags for civil engineering. 4. A bottom draw rope for inserting a mouth draw rope into the mesh near the upper opening of the envelope-shaped bag whose both sides are sewn with the folded part as the bottom with the folded part at the bottom, and a drawstring draw tight on the mesh near the bottom mesh And a plurality of reinforcing ropes reaching the upper opening from the upper opening through the bottom net drawstring narrowing portion are attached and used. , Bags for civil engineering. 5. Items 1 to 4 in which the intersection of the bottom net drawing portion narrowed down to the drawstring state by the bottom drawing rope and a plurality of reinforcing ropes reaching the upper opening from the upper opening through the bottom net drawstring drawing portion is tied up by a binding rope. A civil engineering work bag material, which is filled with the filling material described in any one of the above items. 6. When bagging filling materials such as cobblestones, split stones, and concrete blocks, the upper and lower openings are square or circular, and the upper opening and the lower opening have the same side or circular diameter. Alternatively, the bag described in any one of Items 1 to 5 is set in a stone-filled bag manufacturing frame that also serves as a measuring weighing box having a wide angle underneath, and cobblestone, split stone, concrete lump, etc. After filling the filling material, the upper opening is tied up with a mouth drawing rope, then the production frame is pulled up,
A method for packing medium filling material, comprising taking out a stone packing bag in a production frame. About.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In the present invention, a base material forming a bag is called a mesh, a bag filled with a filling material formed of a mesh is called a bag material, and a bag filled with a filling material is a bag. Say body. In addition, the thread between the braided portions of the net is called a net leg.

As shown in FIG. 1, the bag material for civil engineering work of the present invention has two mesh legs 3a between the joints 2a and 2b.
-It is formed of a two-leg net 1 made of synthetic fiber knitted in 3b. Conventionally, a bag was formed with a single leg net being doubled, but two leg nets having the same thickness as the one leg net were knitted into one net with the same mesh size, and the present invention Make a bipod net. Even if one leg net breaks due to the two-leg net, the other one can prevent the middle filling material from coming off. In addition, since the bag material for civil engineering work can be formed by one piece of the two-leg net, overlapping is not required, and sewing work is facilitated. The bipod net may be either a knotless net or a knotted net. In particular, when a part of the net yarn is broken due to a large elongation, it is particularly preferably used to form a net made of Russell knitting of a knotless net which is difficult to unravel. The bag material for civil engineering work is formed of netting, and is rich in shape adaptability.When filling the filling material and disposing it at the installation location, it adapts to the shape of the installation location and adapts and is stable Installed in state.

When the porosity is 45 to 90%, the resistance of the bag to the flow of water and tide is small, and the filled padding is held by the civil engineering bag, so that it does not flow. When the elongation is 30 to 80%, the bag can be arranged in an optimal state according to the topography of the unevenness of the ground contact surface of the bag. If the elongation is less than 30%, the adaptability of the bag shape is deteriorated. If the elongation exceeds 80%, the lower layer portion is crushed at the time of lamination and it is difficult to stably stack.

Furthermore, the bag material for civil engineering work has a porosity of 45 to 90.
%, The elongation is 30 to 80%, and the length L of one side and the short diameter cross-sectional circumference A of the filling material satisfy the relationship of 4 × L × 1.8 ≦ A. No matter how fast the tide flows or the shape of the installation location, the filling material does not flow out of the mesh. 1.8 in this relational expression is the safety factor.

The net is preferably made of synthetic fibers such as polyamide, aromatic polyamide, polyester, aromatic polyester, polyvinyl alcohol, polypropylene and polyethylene. The mesh yarn constituting the mesh is determined by the size of the bag, that is, the filling volume and the weight.
A 2 mm one is used.

Next, a method for manufacturing the bag material for civil engineering work of the present invention will be described. Sewing method 1 of the bag material for civil engineering work The squeezing rope 12 is inserted into the mesh near the upper opening 5 of the bag obtained by sewing the netting into a tubular shape with the overhanging cord 14, and the bottom of the mesh is sewn around the lower opening. FIG. 2 shows the drawing rope 8 inserted.
It is a bag material shown by. While consolidating the bottom net, two reinforcing ropes 9 are tied up with the bottom throttle rope 8 to pass through each mesh from the opening 5 and to the opening 5 through the bottom throttle portion of the lower opening.
a. 9b is inserted, and both ends thereof are formed into a hanging portion 10 such as a crane by suturing. As shown in FIG. 6, the reinforcing ropes 9 a and 9 b intersect under the narrowed portion of the bottom net of the bag material 13, are tied with the binding rope 11 at the intersection, and then the bottom of the bag material 13 is squeezed with the binding rope 11. Attach to rope 8,
A conical civil engineering bag material as shown in FIG. 5 is produced.
More than two reinforcing ropes 9a and 9b may be used depending on the weight of the filling material and the size of the civil engineering work bag. Assuming the case where the binding of the bottom drawing rope 8 at the lower opening is insufficient, the binding of the bottom drawing rope 8 is sewn with the overhanging string 14 before the binding of the bottom drawing rope 8 so that the filling material does not come out.
It is preferable to bind the tubular rear bottom net with the bottom drawing rope 8 while converging the net.

Sewing method 2 of bag material for civil engineering work One net is folded in two so that there is no opening at the bottom, and the folded portion 4 is folded at the bottom of bag material 13 as shown in FIG.
The upper part is an opening 5, the edges 6 on both sides are sewn with an overhang string 14 to form an envelope, and then the bottom squeezing rope 8 is inserted all around the mesh of the mesh bottom 7 of the bag material 13. The bottom drawing rope 8 inserted through the entire circumference is squeezed and the bottom net is converged as shown in FIG. The bottom drawing rope 8
It may be inserted all around while converging the bottom net. As shown in FIG. 5, a reinforcing rope 9a that passes through the edge 6 and a reinforcing rope 9b that is perpendicular to the reinforcing rope 9a are attached to the bag material 13 having the bottom net squeezed. The reinforcing ropes 9a and 9b are individually attached by being inserted into the mesh of the mesh at the attachment position, and the hanging portions 10 are formed at both ends by satsuma knitting. The number of the reinforcing ropes 9a and 9b may be more than two depending on the weight of the filling material and the size of the civil engineering work bag. The reinforcing ropes 9a and 9b are crossed under the narrowed portion of the bottom net of the bag material 13, and the reinforcing ropes 9a and 9b are tied with the binding rope 11 at the intersection as shown in FIG. It is attached to the bottom drawing rope 8 of the material 13.

The bag material for civil engineering work manufactured by these methods is subjected to the largest load when the filling material is filled, and the net yarn is bundled at the bottom which is easily damaged by friction with the ground. Since the net yarn acts radially from the bottom narrowed portion, the amount of net yarn acting on the bottom increases, and the bottom net can be uniformly loaded, so that the bottom net can be prevented from being damaged. Also, a plurality of reinforcing ropes that pass through the bottom from the upper opening to the upper opening are attached to the bag material with the bottom net squeezed, and a plurality of reinforcing ropes are bound and bound by the bottom drawing rope and the binding rope at the intersection of the bottom, When lifting and lowering bags filled with filling materials in civil engineering work bags, it is easy to receive the load at the center of the bottom net at all times, and it is easy to distribute the load evenly throughout the bottom net. And the bottom net is hardly damaged. The reinforcement rope is 10
60 mm, mouth drawn rope is 4 to 12 mm, bottom drawn rope is 10 to 30 mm, tying string is 4 to 12 mm, overlocking string is 4 to 12 mm, and the material is preferably polyester, but polyamide, aromatic Group polyamide,
Synthetic fibers such as aromatic polyester, polyvinyl alcohol, polypropylene, and polyethylene may be used.

The civil engineering bag material is placed in a rectangular or circular production frame having the same shape with the upper and lower openings and an angle extending from the upper side to the lower side, and After filling the filling material and closing the upper opening of the bag body 16 with the squeezing rope 12 and closing it, the hanging member 18 of the production frame provided at the corner of the production frame 17 as shown in FIG. , And as shown in FIG.
And the bag 16 filled with the filling material is made into the production frame 1.
Removed from 7. In the method of lifting and removing the production frame in this manner, the impact of the filling material being filled on the production frame wall surface is reduced, and the civil engineering bag material is less likely to be damaged. When taking out the bag 16 filled with the filling material from the production frame, when the production frame 17 is lifted, the bag material for civil engineering work formed by the synthetic fiber net is stretched, and the bag 16 is formed by the own weight of the filling material. Since the filling material inside the production frame protrudes from below the production frame and moves rapidly downward, the civil engineering work bag material has less friction with the production frame and is not damaged.

[0015]

EXAMPLE 1 The distance between the braided section and the braided section was 80 mm (80 mm), and the two leg nets knitted between them were made of 90 nylon long fibers of 1260 denier each. Nodule (Russell)
Using a mesh of 10 m × 4 m, the mesh was folded in two to form a tubular shape having a width of 5 m at the upper and lower openings, and the mesh bag of FIG. 2 was sewn at the lower opening and the edge. While a 16 mm-thick polyester bottom draw rope 8 is inserted all the way around the bottom mesh of the net bag from the bottom mesh, the bottom net 7 of the mesh bag is bundled and the bottom draw rope 8 is wound around to bind. did. Two reinforcing ropes 9a and 9b made of polyester having a thickness of 30 mm are passed through the mesh from the opening 5 to the opposing opening 5 so as to be orthogonal to each other at the bottom of the mesh bag with the bottom net 7 squeezed. 10 was formed on the hanging portion of the lifting loop. Two reinforcing ropes orthogonal to each other at the bottom were bound at the intersection using a 9 mm-thick polyester binding rope 11, and then attached to the bottom drawing rope 8 of the net bag with the binding rope 11. Further, a 9 mm-thick polyester squeezing rope 12 was inserted into and attached to the second mesh below the opening 5 of the mesh bag to obtain a civil engineering construction bag material of the present invention. The bag material for civil engineering work is opened up and down 2.5m x 2.5m, height 1.5
m, and is filled with 12 tons of cracked stone having a size of 40 to 50 cm. Then, the opening of the bag for civil engineering work is tightly closed with the squeezing rope 12, and the bag body 16 is produced. did. Next, wire ropes for lifting the hanging members 18 of the production frame were attached to the upper four corners of the production frame 17. The production frame 17 was lifted on a hook of a crane, and the production frame 17 was taken out. Further, this stone-stuffed bag was hung on a hanging portion 10 provided at the end of the reinforcing rope with a hook of a crane and lifted ten times, and was repeatedly dropped. However, the bag for civil engineering work was not damaged, and the middle-stuffed material was pulled out. There was no.

Example 2 A knot-free knot consisting of 90 nylon long fibers of 1260 deniers, each of which has a length of 80 mm (80 mm) between the knot portions and two leg nets knitted therebetween. (Russell)
Using a mesh of 5 m × 8 m, the mesh bag was folded in two so that the bottom of the mesh bag became the folded portion 4, thereby producing an envelope-shaped mesh bag of FIG. 3 having an upper opening 5 having a width of 5 m and an edge length of 4 m. . While a 16 mm-thick polyester bottom draw rope 8 is inserted all the way around the bottom mesh of the net bag from the bottom mesh, the bottom net 7 of the mesh bag is bundled and the bottom draw rope 8 is wound around to bind. did. Two 30 mm thick polyester reinforcement ropes 9 a and 9 b are passed through the bottom of the opening 5 from the opening 5 in a net bag squeezed from the bottom net 7.
Attach through the mesh so that each of them is orthogonal at the bottom up to the opposing opening 5, and one end is attached to the hanging part of the lifting loop at both ends.
0 was formed. Two reinforcing ropes 9a that are orthogonal at the bottom
9b was tied at the intersection using a 9 mm-thick polyester tie rope 11, and then attached to the bottom draw rope 8 of the net bag with the tie rope 11. Further, a 9 mm-thick polyester squeezing rope 12 was inserted into and attached to the second mesh below the opening 5 of the mesh bag to obtain a civil engineering construction bag material of the present invention. 2.5 m ×
It is arranged in a production frame 17 having a height of 2.5 m and a height of 1.5 m.
After filling 12 tons of cracked stone having a size of about 50 cm, the opening of the bag for civil engineering work was tightly closed with the squeezing rope 12 to produce a bag body 16. Next, wire ropes for lifting the hanging members 18 of the production frame were attached to the upper four corners of the production 17. The production frame 17 was lifted on a hook of a crane, and the production frame 17 was taken out. Further, the hanging part 10 provided at the end of the reinforcing rope was hung on a hook of a crane, and the hanging part 10 was lifted ten times and was repeatedly lowered. There was no.

[0017]

According to the present invention, by using a bipod net in a civil engineering construction bag made of a net made of synthetic fiber yarn, one sheet can sufficiently withstand damage and does not come out of the filling material. was gotten. Also, by squeezing the net bottom of the civil engineering bag, attaching the reinforcing rope, lifting the production frame and removing the production frame from the bag inside the production frame, the damage of the civil engineering bag during use is significantly reduced. Results were obtained. Further, the sewing operation was facilitated, and as a result, the moldability of the bag filled with the filling material was remarkably improved.

[Brief description of the drawings]

FIG. 1 shows a structural diagram of a bipod net.

FIG. 2 is a perspective view of a sewn mesh bag according to the first embodiment.

FIG. 3 is a perspective view of a sewn mesh bag according to a second embodiment.

FIG. 4 is a perspective view in which the bottom net of the sewn net bag is bundled and bound.

FIG. 5 is a perspective view of a bag material for civil engineering work.

FIG. 6 is an enlarged view of attachment of a reinforcing rope at the bottom of the bag material for civil engineering work.

FIG. 7 is a sectional view of a conventional bag packing method.

FIG. 8 shows a state in which a bag in a conventional production frame is lifted by a crane.

FIG. 9 is a sectional view of the bag packing method of the present invention.

FIG. 10 shows a state where the production frame after filling with the filling material of the present invention is lifted.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Netting 2a Braided part 2b Braided part 3a Leg net 3b Leg net 4 Folding part 5 Opening 6 Edge 7 Bottom net 8 Bottom rope 9a Reinforcement rope 9b Reinforcement rope 10 Suspension part 11 Binding rope 12 Port rope Rope 13 Bag material 14 Overlock String 15 Conventional Production Frame with Upper Upper Part 16 Bag (Filled with Filling Material) 17 Production Frame of the Present Invention 18 Hanging Tool of Production Frame

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor: Tomio Tamura 1-13-20 Minamisenba, Chuo-ku, Osaka-shi, Osaka Inside of Kyowa Co., Ltd. (72) Yukihiro Shinomura 1-chome, Minamisenba, Chuo-ku, Osaka-shi, Osaka No. 13-20 Inside Kyowa Co., Ltd. (72) Inventor Tadakatsu Sakai 1-13-20 Minamisenba, Chuo-ku, Osaka City, Osaka Prefecture Inside Kyowa Co., Ltd. (72) Toshihiro Tanaka 1-1-13 Minamisenba, Chuo-ku, Osaka City, Osaka No. 20 KYOWA CORPORATION F term (reference) 2D018 AA06 CA02 3E003 AA05 AB02 BC02 BD03 CA01 CB06 DA06 3E064 AD15 BA10 BA26 BA30 BA36 BA40 BA54 BC15 BC17 EA08 EA09 EA16 EA23 FA01 HG03 HJ05 HL09 HM02 HN34 HP04

Claims (6)

[Claims] 1. A filling material in which a bag is formed of a knotless or knotty netting made of a synthetic fiber yarn and knitted between two knitted portions with two net legs. Used for filling civil engineering bags. 2. The knitted netting has a porosity of 45 to 90%,
The elongation is 30 to 80%, the mesh is 25 to 250 mm, and the length L of one side of the mesh and the short diameter cross-sectional circumference A of the lump to be filled in the bag are 4 × L × 1.8 ≦ A. A bag material for civil engineering work, which is filled with the filling material according to claim 1 formed of a mesh material satisfying the following relationship. 3. A bottom drawing rope for inserting a mouth drawing rope into a mesh near an upper opening portion in a bag formed by sewing a net into a tubular shape, and tightening a purse-string narrowing of the lower opening portion in a mesh near a lower opening portion. And a plurality of reinforcing ropes reaching the upper opening from the upper opening through the lower opening purse draw-down portion are attached to the middle filling material. Filled and used for civil engineering bags. 4. An opening rope is inserted into a mesh near an upper opening of an envelope-shaped bag whose both sides are sewn with the folded portion as a bottom by folding the mesh into two parts, and a drawstring is tightened in a mesh near the bottom mesh. And a plurality of reinforcing ropes extending from the upper opening to the upper net through the drawstring drawdown at the bottom and attached to the upper opening. Filled and used for civil engineering bags. 5. An intersecting portion of a lower net drawing portion narrowed down to a drawstring state by a bottom drawing rope and a plurality of reinforcing ropes reaching the upper opening from the upper opening through the bottom net drawstring drawing portion by a binding rope. Any one of claims 1 to 4 which is tied up
Bag material for civil engineering work, which is filled with the filling material described in the section. 6. When filling a filling material such as cobblestone, split stone, concrete block, etc., the upper and lower sides are opened in a square or circular shape, and one side of the square of the upper opening or the diameter of the circle is the upper opening. 2. A stone-filled bag manufacturing frame, which also serves as a measuring box having the same or lower opening and an angle that widens downward.
After setting the bag described in any one of the above items 5 to 5 and filling the filling material such as cobblestone, split stone, concrete lump, the upper opening is tied up with a mouth drawing rope, and then the production frame is pulled up. And a method for packing a medium filling material, comprising taking out a stone packing bag in a production frame.