JP2017078295A - Hydration hardening bag and fixed structure installation method using the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a hydration hardening bag that enables installing a strong temporary structure with a large area in a short time in the emergency repair of a river embankment and the temporary restoration construction of an embankment, facilitates consolidation integrated to each other, is superior in handling and fastness properties, never causes aeration and deterioration for a long time while being a temporary repair material, includes high rigidity capable of tolerating collision such as driftwood in the heavy rain, and is superior in weather resistance, form stability and safety available for long periods.SOLUTION: A hydration hardening bag includes a bag body having a bottom and a body, and a hydration hardening mat material laminated and fixed in an inner circumferential surface of the body of the bag body.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a hydration-hardening bag suitable for construction and repair of levee and earth retaining structures, etc. in disaster sites where rivers have collapsed, collapsed levees, road flooding, etc. due to heavy rain damage, etc. The present invention relates to a method for installing a fixed structure.

Conventionally, at disaster sites where river slopes, collapsed levees, road floods, etc. due to heavy rain damage such as road embankments, railway embankments, revetment embankments, prevention of expansion of damage and water stoppage, etc. For this purpose, large sandbags, crushed stones, etc. are put into a large flexible container (flexible bag) to create a large sandbag and placed at the disaster site or construction site. Construction is being carried out.
Then, it is common to apply for a budget for full-scale concrete revetment work, decide on a project, and perform permanent revetment reinforcement work at a later date.
In addition to the conventional general flexible container bag, for example, (Patent Document 1) includes a large sandbag that can prevent the sandbag from being washed away, can suppress the torrent of the breaking point, and can cope with a large breaking point. A suspension rope is inserted through the mesh in the vicinity of the opening edge of the outer bag having an elongation of 15% to 80% formed of single or double using a mesh knitted with synthetic fiber yarn having a mesh yarn diameter of 1 mm to 10 mm. The end portions are connected to form an endless rope, and the endless rope is pulled out at a predetermined position of the mesh to form a plurality of hanging loops, and an outer bag in which a mouth-drawing rope is arranged in the vicinity of the hanging loop, and inside the outer bag There is disclosed a large sandbag composed of an inner bag having an inner volume of 0.3 to 9 cubic rice formed by the arranged fabric and earth and sand filled in the inner bag.
In addition, (Patent Document 2) describes a large sandbag bag applicable to embankment, etc., with a material having a desired area water permeability at the bottom center and bottom side of a bottomed cylindrical bag body, and other parts. Is made of a water-impermeable material, and a desired number of annular reinforcing bands are sewn on the outer periphery of the bag body at the desired interval. The central part of the two hanging bands bent in a U-shape is used as the hanging part, The suspension band is orthogonal to the annular reinforcement band at equal intervals, and the suspension band is sewn to the annular reinforcement band at the intersection of the annular reinforcement band, and the water-permeable material part in the center of the bottom surface and the non-permeable material part around it. There is disclosed a sandbag bag characterized in that a bottom reinforcing band is sewn to the boundary and each end of a hanging band is sewn to the bottom reinforcing band.

JP 2000-1828 A JP 2004-84183 A

However, the above conventional techniques have the following problems.
(1) A conventional flexible container bag is made of resin-based fiber sheets such as polyethylene, polyester, and polypropylene, and is simply a fiber sheet bag filled with earth and sand for temporary restoration work. It cannot withstand long-term use.
Therefore, it is necessary to start full-scale restoration work at an early stage, but in recent years, due to a lack of budget, it is increasingly left for a long time in the temporary restoration state, and weathering due to aging deterioration of bag materials of flexible container bags There was a problem that breakage was likely to occur and long life and form stability were lacking.
Further, since the bag material is soft and weak, it has a problem that it is easily broken by a collision of driftwood or the like at the time of water increase and lacks safety and durability.
(2) The large sandbag of (Patent Document 1) is large and difficult to be washed away even by intense water flow, and the inner bag is fine, so that the filled earth and sand are difficult to flow out of the bag body. Can respond. However, because it is made of resin fibers such as polyethylene, polyester, and polypropylene, as with conventional flexible container bags, it is easy to break and deteriorate, and it is difficult to maintain the shape as a structure for a long period of time. There was a problem of lack of durability.
(3) The sandbag bag of (Patent Document 2) increases the strength of the entire bag by sewing an annular reinforcing band on the cylindrical part of the bag and sewing a bottom reinforcing band on the bottom part, and makes the hanging band annular Connected to the reinforcement band and bottom reinforcement band to prevent the bag from damaging due to the weight of the internal soil when lifting the sandbag, but because it is made of cloth, rope, etc., driftwood, metal, etc. May collide with each other, and may have a problem in that it lacks durability, and it cannot prevent deterioration over time due to ultraviolet rays or atmospheric gases, resulting in lack of weather resistance.

  The present invention solves the above-mentioned problems, and in temporary repair work such as emergency repairs such as river embankments and embankments, a large area and a strong temporary structure can be installed in a short time, and they are connected and integrated with each other. Not only is it easy to handle and robust, it is a temporary repair material, but it does not undergo weathering or deterioration for a long time, has high rigidity to withstand the impact of driftwood, etc. in heavy rain, and is used for a long time Providing hydration-hardening bags with excellent weather resistance, shape stability and safety, and using them, embankments, retaining walls, revetment structures, etc. can be constructed and reinforced in a short time. The purpose is to provide a fixed structure installation method with excellent workability and labor savings such as emergency repairs such as embankments and temporary restoration works such as embankments.

Means for solving the problems, and actions and effects obtained thereby

In order to solve the above problems, the hydration-curing bag of the present invention and the fixed structure installation method using the same have the following configurations.
The hydration-hardening bag according to claim 1 of the present invention includes a bag body having a bottom portion and a body portion, and a hydration-hardening mat material laminated and fixed to an inner peripheral surface of the body portion of the bag body. It has a configuration.
This configuration has the following operations and effects.
(1) Since the bag body having the bottom and the body part and the hydrated and cured mat material laminated and fixed on the inner peripheral surface of the body part of the bag body are provided, the bag body in a state where the hydrated and cured bag is made self-supporting. After filling the inside with a filler such as earth, sand, rock, concrete, etc., just by supplying moisture from the inside of the hydration-hardening bag, etc., the hydration-hardening mat material is hardened by the hydration reaction and has excellent shape stability. In addition, long-term weather resistance and rigidity can be maintained, and durability and long life are excellent.
(2) Since the inner peripheral surface of the bag body is covered with a hydrated and hardened mat material cured by a hydration reaction, even if the bag body is damaged due to a collision with driftwood, etc. when water is increased, the cured hydration is cured. The inside can be protected with a mat material, the filler does not flow out to the outside, and is excellent in safety, durability, and shape stability.
(3) The hydration / curing bag in the unused state (before the hydration / curing mat material is hydrated) has flexibility and can be folded and stored or carried to the installation site. Excellent space saving, handleability and transportability.
(4) The hydrated and cured bag is filled with a filler at the installation site, and the hydrated and cured mat material absorbs water in a state where the hydrated and cured mat material absorbs water in a state where the shape is adjusted according to the unevenness and the like of the installation site. The hydrating and curing mat material can be cured with the hydrated curing bag shape, the embankment material such as embankments can be reinforced and stabilized as a fixed structure, emergency repairs and embankments such as river embankments, etc. Can be suitably used for temporary restoration work.
(5) Since the hydrated hardened mat material is laminated and fixed on the inner peripheral surface of the body of the bag body, the earth and sand that contained water at disaster sites where slopes collapsed, levee breaks, road flooding, etc. occurred due to heavy rain If it is filled as a filler as it is, the hydrated and cured mat material can be cured by the moisture contained in the earth and sand, and it is not necessary to supply moisture separately, and it is excellent in workability and water saving.
(6) By using earth and sand containing water at the disaster site, etc. as a filler, carry in earth and sand from the surrounding area, or carry a hydration hardening bag filled with filler in advance to the disaster site etc. by truck It is not necessary to transport earth and sand or hydration-hardening bags, and it is possible to prevent the spread of damage by installing hydration-hardening bags as dykes or earth retaining structures in a short time. Excellent recovery workability.

Here, the bag body has the same shape as a conventional flexible container (flexible bag), and may be cylindrical or rectangular.
Also, the bag body is preferably made of a fiber sheet made of polyethylene, polyester, polypropylene or the like similar to the conventional flexible container bag. In addition, when a bag body has water permeability, it is also possible to harden a hydration hardening mat material by applying water from the outside of a bag body. In this case, as the material of the bag body, a synthetic resin such as polypropylene or a natural fiber such as hemp is preferably used.
A hanging hand can be attached to the main part of the bag body by welding, bonding, sewing or the like. In addition, cloth, a synthetic resin sheet, or the like is preferably used as the material of the suspension.
As a fixing tool for fixing the bag body and the hydrated hardened mat material, scissors, rivets, bolts and nuts are preferably used.

Hydrated and hardened mat materials include underwater hardened cement materials and gypsum composite materials that harden by a hydration reaction, and those filled with a curing agent such as a concrete composition between woven fabrics, non-woven fabrics, or synthetic resin sheets. Preferably used. By combining any two of a woven fabric, a non-woven fabric, or a synthetic resin sheet, and arranging the connecting fiber therebetween, the internal space filled with the curing agent can be maintained.
In addition, in order to harden the hardening | curing agent with which the interior space of a hydration hardening mat material is hardened by a hydration reaction, it is preferable that either one surface of a hydration hardening mat material has water permeability. Therefore, the curing agent may be filled between two woven or non-woven fabrics, or the curing agent may be filled between a woven or non-woven fabric and a synthetic resin sheet such as polypropylene, polystyrene, or polyethylene. Good. In addition, when two synthetic resin sheets are used in combination, water permeability can be ensured by using one of them as a porous synthetic resin sheet.
When either surface of the hydrated and hardened mat material is formed with a synthetic resin sheet, the surface formed with the synthetic resin sheet is adhered to the inner peripheral surface of the bag body, thereby hydrating and curing the bag body. The mat material can be easily combined, and the moisture supplied to the inside of the bag passes through the woven fabric, non-woven fabric or porous synthetic resin sheet to surely cure the curing agent by hydration reaction. Can do.
In the unused state (before the hydrated and hardened mat material undergoes a hydration reaction), the hydrated and hardened bag has flexibility, so it can be easily folded and stored or brought into the installation site, saving storage. Excellent space, handling, and transportability.
The water used for the hydration reaction of the hydrated and hardened mat material may be fresh water or seawater.
The inside of the bag can be filled with earth and sand, sludge, rock, rubble, driftwood, concrete, etc. as fillers.

Invention of Claim 2 is a hydration hardening bag of Claim 1, Comprising: It has the structure provided with the metal reinforcement material arrange | positioned by the outer surface of the said trunk | drum of the said bag body. Yes.
With this configuration, in addition to the operations and effects of claim 1, the following operations and effects are provided.
(1) By having a metal reinforcing material disposed on the outer surface of the body of the bag body, the rigidity of the outer surface of the bag body can be increased, damage is unlikely to occur, and durability and robustness are improved. Excellent.
(2) A plurality of hydration-hardening bags can be connected to each other by welding or other methods using a metal reinforcing material, and the size can be easily increased and the workability is excellent.

Here, the metal reinforcing material does not need to cover the entire body portion, and may be any material that can reinforce at least a part of the body portion of the bag. For example, a metal plate such as iron, stainless steel, or aluminum that is formed into a plate shape, a saddle shape, a protrusion shape, a net shape, or the like is preferably used.
The metal reinforcing material formed in a plate shape or a net shape can be fixed by screwing a key point with a bolt and a nut together with the bag body and the hydrated hardened mat material. In addition, the metal reinforcing material formed in a bowl shape or a protrusion shape can be fixed so as to be embedded in the hydrated hardened mat material.
In addition, the shape, number, arrangement, etc. of the metal reinforcing material can be appropriately selected.

The hydration-curing bag according to claim 3 of the present invention includes a bag body having a bottom portion and a body portion, and a hydration-hardening mat material laminated and fixed to the outer peripheral surface of the body portion of the bag body. It has a configuration.
With this configuration, the following actions and effects are provided in addition to the actions and effects similar to (3) and (4) of claim 1.
(1) Since the bag body having the bottom and the body part and the hydrated and cured mat material laminated and fixed to the outer peripheral surface of the body part of the bag body are provided, After filling with fillers such as earth and sand, rocks, concrete, etc., just by applying water to the hydration hardening mat material from the outside, the hydration hardening mat material hardens by hydration reaction and has excellent shape stability, Since the bag body is not exposed on the surface and the outer periphery is covered with the hydrated and hardened mat material, long-term weather resistance and rigidity can be maintained, and durability and long life are excellent.
(2) Since the outer peripheral surface of the bag body is covered with a hydrated and hardened mat material cured by a hydration reaction, the bag body can be protected from collisions of driftwood, etc. when water is increased, and the filler is exposed to the outside. It does not flow out and is excellent in safety, durability, and shape stability.

Here, the hydrated and cured bag according to claim 1 and claim 3 is the difference between whether the hydrated and cured mat material is laminated and fixed on the inner peripheral surface of the bag body or the outer peripheral surface. Others are the same.
In addition, when a bag body has water permeability, a hydration hardening mat material can be hardened also with the water | moisture content supplied to the inside of a bag body. Therefore, if hydrated earth and sand etc. are filled as they are at the disaster site where slope collapse, bank breakage, road inundation, etc. occurred due to heavy rain, etc., the hydration hardening mat material will be cured by the moisture contained in the earth and sand. There is no need to supply water separately, and it is excellent in workability and water saving. In that case, it is not necessary to carry earth and sand from the surrounding area, or to carry a hydrated and hardened bag filled with a filler in advance to the disaster site etc. by truck. The hydration-hardening bag can be installed as a dike or earth retaining structure in a short period of time, preventing the spread of damage and improving the workability of restoration.

Invention of Claim 4 is a hydration hardening bag of Claim 3, Comprising: It has the structure provided with the metal reinforcement material arrange | positioned by the outer surface of the said hydration hardening mat material. .
With this configuration, in addition to the operation and effect of the third aspect, the following operation and effect are provided.
(1) By having a metal reinforcing material disposed on the outer surface of the hydrated and cured mat material, it is possible to prevent damage and deterioration of the hydrated and cured mat material after curing, improving weather resistance and durability. Can be made.
(2) A plurality of hydration-hardening bags can be connected to each other by welding or other methods using a metal reinforcing material, and the size can be easily increased and the workability is excellent.
Here, since the metal reinforcing material is the same as that of the second aspect, the description thereof is omitted.

The invention according to claim 5 is the hydration-curing bag according to claim 2 or 4, wherein the bag has a configuration provided with a connector disposed on the metal reinforcing material.
With this configuration, in addition to the operations and effects of claim 2 or 4, the following operations and effects are provided.
(1) By having a connector disposed on a metal reinforcing material, a plurality of hydration-hardening bags can be connected and integrated in a short time, and construction of embankments, retaining walls, revetment structures, etc. It is easy to reinforce and excels in workability and labor saving such as emergency repair and temporary restoration work.

Here, the connection tool may be any one that can connect the hydration-curing bags to each other. However, a connection tool that can be detachably connected as a pair of a male member and a female member is preferably used. For example, rivets, snap buttons, bolts and nuts can be used. When a rivet or snap button is used as the connection tool, a hydration-hardening bag with a male member attached and a hydration-hardening bag with a female member attached may be prepared and connected to each other. These can be attached to the surface of the metal reinforcement by welding or the like. When using bolts and nuts as connecting tools, drill through holes that penetrate through the metal reinforcement, bag, and hydrated hardened mat material in advance. do it. Note that only the nut may be welded to the surface of the metal reinforcing material in accordance with the position of the through hole, and the bolt may be screwed at the time of connection.
In addition, when fixing a metal reinforcement to a hydration hardening bag with a volt | bolt and a nut, you may utilize the volt | bolt as a connection tool.

A fixed structure installation method according to claim 6 of the present invention includes a filler filling step of filling the bag body of the hydrated and cured bag according to any one of claims 1 to 5 with a filler, A hydration hardening step of hardening the hydration hardening mat material by a hydration reaction.
This configuration has the following operations and effects.
(1) In the filling material filling step of filling the bag body of the hydrated and cured bag, the hydrated and cured mat material is hydrated after the bag body is filled with earth, sand, rock, concrete, etc. as the filler. In the hydration and curing step, the hydration and curing mat material is cured by simply supplying water from the inside or outside of the bag body to reinforce the inner or outer peripheral surface of the bag body, It can be made to stand by itself and is excellent in labor saving and workability during construction.
(2) Filling the inside of the bag body in the filling material filling step of filling the bag body of the hydration-curing bag with the shape of the flexible hydration-curing bag adjusted to the shape of the site After filling the material, in the hydration and curing process where the hydrated and cured mat material is cured by a hydration reaction, the hydrated and cured mat material is cured to fill the damaged portion with a hydrated and cured bag without any gaps. The repair workability and workability are excellent.

Here, in the hydration curing step, water may be supplied from the inside or the outside of the bag body according to the attachment position of the hydration curing mat material, the presence or absence of water permeability of the bag body, and the like. Fresh water or sea water may be applied, or waiting for the moisture contained in the filler to penetrate into the hydrated and hardened mat material.
When the surface of the hydrated and hardened mat material is formed of woven or non-woven fabric, it absorbs moisture regardless of whether the hydrated and hardened mat material is laminated on the inner peripheral surface or the outer peripheral surface of the bag body. It is easy to cure and can be cured in a short time and has excellent workability and installation workability.

Invention of Claim 7 is a fixed structure installation method of Claim 6, Comprising: The structure provided with the structure connection process which connects the said hydration hardening bag which adjoins with a connection tool or a connection member. Have.
With this configuration, in addition to the function and effect of the sixth aspect, the following function and effect are provided.
(1) A plurality of hydration hardenings that are installed in a predetermined place by filling a bag body with earth and sand by having a structure connecting step of connecting adjacent hydration hardening bags with a connecting tool or a connecting member. The bag can be integrated as a dike or earth retaining structure, and it has excellent independence and installation workability.

Here, when connecting a hydration hardening bag using connecting tools, such as a rivet and a snap button, which are arranged on the surface of a metal reinforcing material, the structure connecting step may be performed before the filler filling step. Or later. Also, when using bolts and nuts as connecting tools, the structure connecting step is carried out by penetrating the bolts through the metal reinforcing material, the bag body and the hydrated hardened mat material of the adjacent hydrated hardened bags and screwing them into the nuts. Then, by performing the filling material filling step and the hydration hardening step, the bolt can be embedded in the filling material and integrated with the cured hydration hardening mat material to firmly fix the hydration hardening bag. Excellent durability and durability.
In addition, when the hydration hardening bags are connected and integrated by combining connecting members such as H-shaped steel, channel steel, and angle steel, the overall rigidity can be further increased, and a high-strength structure is produced. be able to.

Invention of Claim 8 is the fixed structure installation method of Claim 6 or 7, Comprising: The said hydration hardening bag and the existing structure around the field are connected and fixed with a connection member, or the said hydration hardening It has the structure provided with the structure fixing process which fixes a bag to an installation surface with an anchor or a pile.
With this configuration, in addition to the functions and effects of the sixth or seventh aspect, the following functions and effects are provided.
(1) By connecting and fixing the hydration-curing bag and existing structures around the site with a connecting member, or by fixing the hydration-curing bag to the installation surface with anchors or piles, the surrounding structures, etc. Can be used to firmly fix the hydration-cured bag, and is excellent in fixing stability and self-supporting stability.

Here, in the structure fixing step, it is sufficient that the hydration-curing bag can be fixed to an existing structure or installation surface around the site, but by using a metal reinforcing material and a connector disposed in the hydration-curing bag, The hydration and curing bag can be fixed easily and firmly by welding or screwing.
For example, using a metal reinforcement or connector, attach an L-shaped anchor fixing bracket, etc. to the lower end of the outer periphery of the hydration hardening bag, and drive the anchor to fix it on the ground or foundation concrete at the installation site. Can do. In addition, steel materials such as H-shaped steel, channel steel, and angle steel can be driven into the installation surface as piles, and key points can be welded to the surface of a metal reinforcing material, or can be fixed by screwing to a connector. it can.

The model perspective view which shows the state before use of the hydration hardening bag of Embodiment 1. FIG. The model perspective view which shows the state at the time of use of the hydration hardening bag of Embodiment 1. FIG. The model perspective view which shows the structure connection process of the fixed structure installation method using the hydration hardening bag of Embodiment 1 The model perspective view which shows the structure of the hydration hardening bag of Embodiment 2. FIG. The model perspective view which shows the structure connection process and structure fixing process of a fixed structure installation method using the hydration hardening bag of Embodiment 2. The model perspective view which shows the modification of the structure fixing process of the fixed structure installation method using the hydration hardening bag of Embodiment 2. FIG. The schematic side view which shows the modification of the structure connection process of the fixed structure installation method using the hydration hardening bag of Embodiment 2. The schematic front view which shows the modification of the structure connection process of the fixed structure installation method using the hydration hardening bag of Embodiment 2. FIG.

A hydration-curing bag of the present invention and a fixed structure installation method using the same will be described below with reference to the drawings. The present invention is not limited to the embodiments described below.
(Embodiment 1)
1 is a schematic perspective view showing a state before use of the hydration-cured bag of Embodiment 1. FIG.
In FIG. 1, 1 is a hydration-curing bag of the first embodiment, 2 is a bag body of a hydration-curing bag 1 formed in a substantially cylindrical shape with a fiber sheet such as polyethylene, polyester, or polypropylene, and 2b is a bag body 2. 3 is a hydrated and cured mat material laminated and fixed to the inner peripheral surface of the body 2b of the bag body 4, and 4 is a fixture such as a rivet for fixing the bag body 2 and the hydrated and cured mat material 3. .
FIG. 2 is a schematic perspective view showing a state in use of the hydration-cured bag of the first embodiment.
In FIG. 2, reference numeral 2 a denotes a bottom portion of the bag body 2, and reference numeral 2 c denotes two hanging hands of the hydration-cured bag 1 attached to the upper end portion of the trunk portion 2 b of the bag body 2 by welding, bonding, stitching, or the like.
As the hydration and curing mat material 3, a material in which a curing agent such as an underwater curing cement material, a gypsum composite material, or a concrete composition that is cured by a hydration reaction is filled between a woven fabric and a non-woven fabric is preferably used.
In addition, you may use a bolt and a nut as the fixing tool 4 which fixes the bag body 2 and the hydration hardening mat material 3. FIG.

The usage method of the hydration hardening bag comprised as mentioned above is demonstrated.
In FIG. 2, first, the bag body 2 of the hydration hardening bag 1 is filled with a filler such as earth and sand, sludge, rock, rubble, driftwood, concrete, etc. (filler filling step).
Next, by supplying water to the inside of the bag body 2, the hydrated and cured mat material 3 is cured by a hydration reaction (hydration and curing step). The water supplied at this time may be fresh water or sea water.
In addition, when using hydrated earth and sand as a filler, the hydrated and hardened mat material 3 can be cured by moisture contained in the filler, so there is no need to supply moisture separately. Excellent.
Moreover, when the bag body 2 has water permeability, water can be applied from the outside of the bag body 2 to cure the hydrated and cured mat material 3.
The hydrated and cured mat member 3 can be laminated and fixed to the outer peripheral surface of the body portion 2b of the bag body 2. At this time, it is preferable to pour water from the outside of the bag body 2, but when the bag body 2 has water permeability, water may be supplied to the inside of the bag body 2, and moisture contained in the filler may be supplied. May be used.
Further, as the hydrated and cured mat material 3, a material in which a curing agent is filled between a woven fabric or a nonwoven fabric and a synthetic resin sheet such as polypropylene, polystyrene, or polyethylene can be used. In that case, the bag 2 and the hydrated cured mat material 3 can be easily combined by sticking the surface formed of the synthetic resin sheet to the inner peripheral surface or the outer peripheral surface of the bag body 2, The fixture 4 can be omitted.

Next, the structure connecting step will be described.
FIG. 3 is a schematic perspective view showing a structure connecting step of the fixed structure installing method using the hydration-curing bag of the first embodiment.
In FIG. 3, reference numeral 5 denotes a connector for connecting adjacent hydration-curing bags 1. As the connector 5, a bolt and a nut are preferably used. At this time, after the bolts are passed through the bags 2 and the hydrated cured mat material 3 of the adjacent hydrated cured bags 1 and screwed to the nuts to perform the structure connecting process, the filling material filling process and the hydration process are performed. By performing the curing step, the bolt is embedded in the filler and integrated with the cured hydrated and cured mat material 3 so that the hydrated and cured bag 1 can be firmly fixed, and the durability and robustness are excellent.
Note that a rivet, a snap button, or the like may be used as the connector 5. Since these connectors 5 can be attached to the surface of the bag body 2, the structure connecting step may be performed before or after the filler filling step and the hydration curing step.

The hydration-cured bag of the first embodiment has the following action.
(1) In the case where a bag body having a bottom part and a body part and a hydrated and hardened mat material laminated and fixed on the inner peripheral surface of the body part of the bag body are provided, the bag body in a state where the hydrated and cured bag is made self-supporting. After filling the inside with a filler such as earth, sand, rock, concrete, etc., just by supplying moisture from the inside of the hydration-hardening bag, etc., the hydration-hardening mat material is hardened by the hydration reaction and has excellent shape stability. In addition, long-term weather resistance and rigidity can be maintained, and durability and long life are excellent.
(2) When the inner peripheral surface of the bag body is covered with a hydrated and hardened mat material cured by a hydration reaction, even if the bag body is damaged due to a collision with driftwood, etc. when water is increased, the cured hydration and curing The inside can be protected with a mat material, the filler does not flow out to the outside, and is excellent in safety, durability, and shape stability.
(3) When the outer peripheral surface of the bag body is covered with a hydrated and hardened mat material cured by a hydration reaction, the bag body can be protected from collision of driftwood, etc. when the water is increased, and the filler is exposed to the outside. It does not flow out and is excellent in safety, durability, and shape stability.
(4) The hydrated and cured bag in the unused state (before the hydrated and cured mat material undergoes hydration) has flexibility and can be folded and stored or brought into the installation site. Excellent space saving, handleability and transportability.
(5) Hydration-curing bags are filled with a filler at the installation site, and the hydration-curing mat material absorbs water in a state where the hydration-cured mat material absorbs water in a state where the shape is adjusted and adapted to the unevenness of the installation site. The hydrating and curing mat material can be cured with the hydrated curing bag shape, the embankment material such as embankments can be reinforced and stabilized as a fixed structure, emergency repairs and embankments such as river embankments, etc. Can be suitably used for temporary restoration work.
(6) When the hydrated and cured mat material is laminated and fixed on the inner peripheral surface of the body portion of the bag body, or the hydrated and cured mat material is laminated and fixed on the outer peripheral surface of the body portion of the bag body having water permeability. In this case, if hydrated earth and sand etc. are directly filled as a filler in disaster sites where slopes have collapsed, bank breaks, road inundation, etc. have occurred due to heavy rain, etc., the hydrated and hardened mat material will be cured by the moisture contained in the earth and sand. There is no need to supply water separately, and it is excellent in workability and water saving.
(7) By using earth and sand containing water at the disaster site, etc. as a filler, carry in earth and sand from the surrounding area, or carry a hydration hardening bag filled with filler in advance to the disaster site etc. by truck It is not necessary to transport earth and sand or hydration-hardening bags, and it is possible to prevent the spread of damage by installing hydration-hardening bags as dykes or earth retaining structures in a short time. Excellent recovery workability.
(8) When a hydrated and hardened mat material is laminated and fixed on the outer peripheral surface of the body of the bag body, a filler such as earth and sand, rock, concrete, etc. is placed in the bag body with the hydrated and cured bag being self-supporting. After filling, the hydrated and hardened mat material is cured by a hydration reaction by simply applying water to the hydrated and hardened mat material from the outside, and has excellent shape stability, the bag body is not exposed to the surface, and the outer periphery is water. By being covered with the Japanese mat material, long-term weather resistance and rigidity can be maintained, and durability and long life are excellent.
(9) By having a connector, multiple hydration-hardening bags can be connected and integrated in a short time, making it easy to construct and reinforce dike, retaining wall, revetment structure, etc. Excellent workability and labor saving in restoration work.
(10) When the surface of the hydrated and cured mat material is formed of a woven fabric, a nonwoven fabric or a porous synthetic resin sheet, the hydrated and cured mat material is either the inner peripheral surface or the outer peripheral surface of the body of the bag body. Even if laminated, it is easy to absorb moisture, can be cured in a short time, and is excellent in workability and installation workability.

The fixed structure installation method using the hydration-curing bag of the first embodiment has the following actions.
(1) In a filling material filling process in which a hydration-hardening bag is self-supported on site and a bag is filled with a filler, the bag body is filled with earth, sand, rock, concrete, etc. as a filler, and then a hydration-hardening mat. In the hydration curing step of curing the material by a hydration reaction, the hydration curing mat material is cured only by supplying water from the inside or outside of the bag body, and the inner peripheral surface or outer peripheral surface of the bag body is reinforced, The hydration-cured bag can be made to stand on its own, and it is excellent in labor saving and workability during construction.
(2) Filling the inside of the bag body in the filling material filling step of filling the bag body of the hydration-curing bag with the shape of the flexible hydration-curing bag adjusted to the shape of the site After filling the material, in the hydration and curing process where the hydrated and cured mat material is cured by a hydration reaction, the hydrated and cured mat material is cured to fill the damaged portion with a hydrated and cured bag without any gaps. The repair workability and workability are excellent.
(3) By having a structure connecting step for connecting adjacent hydration-curing bags with a connector, a plurality of hydration-curing bags installed in a predetermined place by filling earth and sand inside the bag body It can be integrated as an earth retaining structure and has excellent independence and installation workability.

(Embodiment 2)
FIG. 4 is a schematic perspective view showing the configuration of the hydration-curing bag of the second embodiment. In addition, the same code | symbol is attached | subjected to the thing similar to Embodiment 1, and description is abbreviate | omitted.
In FIG. 4, the hydrated and cured bag 1 </ b> A of the second embodiment is different from the first embodiment in that a plate-shaped metal reinforcing material 6 is disposed on the outer surface of the body portion 2 b of the bag body 2. And the L-shaped anchor fixing metal fitting 7 is arrange | positioned in the lower end part of the outer periphery of the hydration hardening bag 1A.
In FIG. 4, 7a is a fixing portion of an anchor fixing bracket 7 fixed to the metal reinforcing member 6, 7b is a bottom plate portion of the anchor fixing bracket 7 having an insertion hole 7c through which the anchor is inserted, and 8 is an anchor fixing bracket. 7 is a metal fixture that fixes the fixing portion 7a of the metal 7 to the metal reinforcing member 6 by screwing.

Next, the fixed structure installation method using the hydration hardening bag of Embodiment 2 is demonstrated.
FIG. 5 is a schematic perspective view showing a structure connecting step and a structure fixing step of the fixed structure installing method using the hydration-curing bag of the second embodiment.
In FIG. 5, reference numeral 9 denotes an anchor that is inserted into the insertion hole 7 c (see FIG. 4) of the bottom plate portion 7 b of the anchor fixing bracket 7 and fixes the hydrated and cured bag 1 </ b> A to the installation surface, and 10 is a metal reinforcement member 6. Connecting members 11 such as H-shaped steel, groove-shaped steel, and angle steel for connecting adjacent hydration-hardening bags 1A, 11 is a metal reinforcing material 6 of each hydration-hardening bag 1A, and connecting parts 10 are bolts. It is a connector that is screwed and fixed with a nut.
By welding bolts or nuts to important points on the surface of the metal reinforcing member 6 in advance, in the structure fixing step, the fixing portion 7a of the anchor fixing bracket 7 can be easily screwed and fixed, In the structure connecting step, the connecting member 10 can be easily screwed and fixed by the connecting tool 11. In addition, when using a bolt and a nut as the fixing tool 4 which fixes the bag body 2 and the hydration hardening mat material 3, the bolt is made to protrude from the surface of the metal reinforcing material 6, and the anchor fixing bracket 7 or the connecting member 10 is used. It may be used for fixing.
By connecting and integrating the hydrated and cured bags 1A with the connecting member 10, the overall rigidity can be further increased, and a high-strength structure can be produced. In addition, the connection member 10 can be connected to existing structures around the site to improve the self-supporting stability and durability.

Next, a modified example of the structure fixing step of the fixed structure installation method using the hydration-curing bag of the second embodiment will be described.
FIG. 6 is a schematic perspective view showing a modification of the structure fixing step of the fixed structure installation method using the hydration-curing bag of the second embodiment.
The structure fixing process in the modified example is different from that of the second embodiment in that a pile 12 using steel materials such as H-shaped steel, channel steel, and angle steel is installed through the bottom 2a of the hydration hardening bag 1A. It is the point which is driven into the surface 20 and is integrated and fixed with a filler 21 such as concrete filled in the bag body 2.
Thereby, the plurality of hydration-curing bags 1 </ b> A can be firmly fixed to the installation surface 20.
In particular, when concrete is used as the filler 21, the pile 12 can be firmly fixed. However, the pile 12 does not fall down or the hydrated and cured bag 1A does not move even when earth or sand is used. Excellent stability.

Next, a modified example of the structure connecting step of the fixed structure installing method using the hydration-curing bag of the second embodiment will be described.
FIG. 7 is a schematic side view showing a modification of the structure connecting step of the fixed structure installation method using the hydration-curing bag of the second embodiment, and FIG. 8 uses the hydration-curing bag of the second embodiment. It is the model front view which shows the modification of the structure connection process of the fixed structure installation method which had been. Here, the detailed structure of the hydrated and cured bag 1A is omitted.
7 and 8, the structure connecting step of the modification is different from that of the second embodiment in that a plurality of hydration-curing bags 1 </ b> A installed in a stepped manner with respect to the embankment 30 have L-shaped connection fittings 14. It is the point which is connected and integrated by the horizontal connection member 10a and the vertical connection members 13, such as H-shaped steel, groove-shaped steel, and angle steel, which are connected in a grid pattern.
Thereby, many hydration hardening bags 1A can be reinforce | strengthened and integrated and a large-sized can be aimed at, and construction and repair of an embankment, a mud structure, etc. can be performed easily. The horizontal connecting member 10a and the vertical connecting member 13 may be connected to existing structures around the site.

In addition to the action of the first embodiment, the hydration-cured bag of the second embodiment has the following action.
(1) By having a metal reinforcing material disposed on the body of the bag body or the outer surface of the hydrated hardened mat material, the rigidity of the outer surface of the bag body is increased, or the hydrated hardened mat material after curing. Can be prevented from being damaged or deteriorated, is hardly damaged, and is excellent in durability, robustness and weather resistance.
(2) A plurality of hydration-hardening bags can be connected to each other by welding or other methods using a metal reinforcing material, and the size can be easily increased and the workability is excellent.

The fixed structure installation method using the hydration-curing bag of the second embodiment has the following operation in addition to the operation of the first embodiment.
(1) By having a structure connecting step of connecting adjacent hydration-hardening bags with a connecting member, a plurality of hydration-hardening bags installed in a predetermined place by filling earth and sand inside the bag body It can be integrated as an earth retaining structure and has excellent independence and installation workability.
(2) By providing a structure fixing step of fixing the hydration-curing bag to the installation surface with anchors or piles, the hydration-curing bag can be firmly fixed using structures around the site, and fixed. Excellent stability and self-supporting stability.

  The present invention can install large-scale and strong temporary structures in a short time in emergency repairs such as river embankments and embankment, and can be easily connected and integrated with each other. It is not only excellent in properties but also a temporary repair material, it does not generate weathering or deterioration for a long time, has high rigidity to withstand collision with driftwood in heavy rain, etc. By providing and using a hydration-hardening bag excellent in safety and safety, embankments, retaining walls, revetment structures, etc. can be constructed and reinforced in a short time. Emergency repair and embankment of river dikes, etc. It is possible to provide a fixed structure installation method excellent in workability and labor saving such as temporary restoration work, etc., and can contribute to flood damage countermeasures.

DESCRIPTION OF SYMBOLS 1,1A Hydration hardening bag 2 Bag body 2a Bottom part 2b Trunk part 2c Lifter 3 Hydration hardening mat material 4 Fixing tool 5,11 Connection tool 6 Metal reinforcement 7 Anchor fixing metal fitting 7a Fixing part 7b Bottom plate part 7c Insertion hole 8 bracket fixture 9 anchor 10 coupling member 10a lateral coupling member 12 pile 13 longitudinal coupling member 14 coupling bracket 20 installation surface 21 filler 30 embankment

Claims (8)

A hydration-hardening bag comprising: a bag body having a bottom portion and a body portion; and a hydration-hardening mat material laminated and fixed to an inner peripheral surface of the body portion of the bag body. The hydration hardening bag according to claim 1, further comprising a metal reinforcing material disposed on an outer surface of the body portion of the bag body. A hydration-hardening bag comprising: a bag body having a bottom portion and a body portion; and a hydration-hardening mat material laminated and fixed to an outer peripheral surface of the body portion of the bag body. The hydration-curing bag according to claim 3, further comprising a metal reinforcing material disposed on an outer surface of the hydration-curing mat member. The hydration-hardening bag according to claim 2, further comprising a connector disposed on the metal reinforcing material. A filling material filling step of filling the bag body of the hydration-curing bag according to any one of claims 1 to 5 and a hydration-curing method for curing the hydration-curing mat material by a hydration reaction. A fixed structure installation method comprising: a step. The fixed structure installation method according to claim 6, further comprising a structure connecting step of connecting adjacent hydration-curing bags with a connecting tool or a connecting member. A structure fixing step of connecting and fixing the hydrated and cured bag and an existing structure around the site with a connecting member or fixing the hydrated and cured bag to an installation surface with an anchor or a pile is provided. The fixed structure installation method of 6 or 7.

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