JPH10252037A - Unit for constructing wall, its manufacture, and wall - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a unit for constructing a wall, such that when concrete blocks are used, the holding strength of the concrete blocks against a flexible sheet can be enhanced and that manufacturing workability can be improved. SOLUTION: A plurality of concrete blocks 6 are placed on one side of gauze 5 and are each hardened while the part of the gauze 5 near which each concrete block 6 is located is wrapped, so that the net 5 is held inside each concrete block 6. In a manufacturing step, the concrete blocks unhardened and gravity are utilized to enable each unhardened concrete block to wrap, owing to its fluidity, the part of the gauze 5 near which the unhardened concrete block is located.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a unit for building a wall, a method of manufacturing the unit for building a wall, and a wall.

[0002]

2. Description of the Related Art Construction methods for walls, for example, seawalls (including seabeds), include a natural structure as a wall construction unit on seawalls, etc., in order to grow plants early and form fish nests. There are those that lay a large number of stone holding units. In each of the natural stone holding units, a plurality of natural stones are bonded on a flexible sheet body via an adhesive, and if this natural stone holding unit is used, the natural stone can be returned to the natural early stage. In addition to being able to transport natural stones to revetment slopes etc., natural stones fall down from revetment slopes after transportation even if the revetment slopes are steep. That can be prevented. This makes it possible to improve the workability of the revetment and the like, and to maintain the revetment after the construction for a long period of time.

The inventor of the present invention uses a concrete block in place of the natural stone bonded to the above-mentioned flexible sheet in order to improve the transportability based on cost reduction and weight reduction. Are thinking.

[0004]

However, as described above, when a concrete block is used in place of natural stone, the adhesive between the surface of the concrete block and the surface of the flexible sheet body. Therefore, the holding force between the flexible sheet body and the concrete block must be low due to the brittle nature of the surface of the concrete block. This tendency is further promoted when the flexible sheet is brittle.

In addition, since the flexible sheet body and each concrete block must be adhered to each other by using an adhesive, a sticky adhesive must be handled in the bonding operation (manufacturing). Alternatively, after arranging a plurality of concrete blocks on a flexible sheet body in consideration of balance, etc., each concrete block is once lifted, and an adhesive is applied to each of the concrete blocks. It must be inserted between the sheet and the sheet body, and the workability at the time of manufacturing is not easy.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and a first object of the present invention is to provide, when a concrete block is used, a holding force between the concrete block and the flexible sheet member. It is an object of the present invention to provide a unit for constructing a wall body, which can enhance the workability in manufacturing and can improve the workability. A second object is to provide a method of manufacturing the above-mentioned wall building unit. The third purpose is
An object of the present invention is to provide a wall using the above-mentioned wall building unit.

[0007]

In order to achieve the first object, according to the first aspect of the present invention, a plurality of concrete blocks are arranged on a mesh piece on one side of the mesh piece. Each of the concrete blocks is hardened in a state of wrapping around the location of each of the concrete blocks in the net-like piece, and is configured as a wall building unit.

Further, the preferred embodiments of the first aspect of the present invention are as described in the second to seventh aspects.

According to another aspect of the present invention, there is provided a second aspect of the present invention.
According to the invention, the mesh piece is disposed substantially horizontally on the work surface, and the uncured concrete block is placed on the upper surface of the mesh piece, and the lower part of the uncured concrete block is placed. Is caused to flow to the lower surface side of the net-like piece.

Further, the preferred embodiments of the invention of claim 8 are as described in claims 9 to 11.

[0011] To achieve the third object, a first aspect is provided.
According to the second aspect of the present invention, the flexible sheet is provided on the lower side area of the slope.
A plurality of natural stone holding units to which a plurality of natural stones are bonded on one surface side of the body are laid with the plurality of natural stones facing upward, and in the upper side area of the slope, on one surface side of the mesh piece. A plurality of concrete block holding units as wall building units for holding a plurality of concrete blocks are laid with the plurality of concrete blocks facing upward, and soil is covered on the plurality of concrete block holding units. , And a wall body characterized by the fact that

[0012] To achieve the third object, a first aspect is provided.
According to the third aspect of the present invention, a concrete block holding unit serving as a wall construction unit in which a plurality of concrete blocks are held on one side of a mesh-like piece on a slope surface, the plurality of concrete blocks are placed on the upper side. A plurality of the concrete block holding units are laid so as to be adjacent to each other, and the plurality of concrete block holding units are divided by the plurality of concrete blocks in each of the concrete block holding units for every several groups. Wherein each of the compartment spaces is filled with stuffing stones, and soil covering is laid on the plurality of concrete block holding units.

[0013]

According to the first aspect of the present invention, on the mesh piece,
A plurality of concrete blocks are arranged on one side of the mesh piece, and each of the concrete blocks is hardened in a state of wrapping around the concrete block of the mesh piece.
Since the flexible sheet body is a mesh piece, it is not necessary to consider the brittleness of the flexible sheet body, but such a mesh piece may enter the inside of the concrete block. Thus, the holding force between the mesh piece and the concrete block can be improved. Moreover, concrete
When the wall building unit is obtained from the use of the block, the uncured concrete block is placed on the mesh piece, and a part of the concrete block is caused to flow to the other side of the mesh piece through the mesh of the mesh piece. With these, it is possible to wrap around the portion where the concrete block is located in the net-like piece.
The concrete block hardens, and the above-mentioned holding relationship between the concrete block and the mesh piece is obtained. For this reason,
In production, there is no need to handle the adhesive, and the work involved is eliminated. As a result, workability in manufacturing can be improved.

According to the second aspect of the present invention, the net-like piece is the first,
Since the second net-like piece has a laminated structure, the thickness of the entire net-like piece can be increased to increase the degree of the net-like piece entering the inside of the uncured concrete block. The holding force with the concrete block can be further increased.

According to the third aspect of the present invention, the first net-like piece is made of a metal reinforcing body and the second net-like piece is made of a synthetic resin. In the case of lifting and transporting, the first net-like piece as a metal reinforcing member can suppress the bending of the wall constructing unit and improve the transportability. After being laid on the surface, the second net-like piece made of synthetic resin continues to exist without corrosion or the like, and as a semi-permanent structure, functions such as seawalls can be maintained properly.

According to the fourth aspect of the present invention, the cross section of the constituent wire of the mesh piece is set so as to expand in the direction along the mesh face of the mesh piece from the other surface side of the mesh piece toward the one surface side. Therefore, the physical locking relationship between the constituent wire of the mesh piece and the concrete block wrapping the same is performed on a wide surface, and the concrete wire for the mesh wire is concretely locked.
Even when the lock of the lock is incomplete, the locking relationship is ensured. For this reason, the holding force between the mesh piece and the concrete block can be further improved.

According to the fifth aspect of the present invention, since a plurality of reinforcing members are held by the net-like piece and each reinforcing member is embedded in each concrete block, the reinforcing member and the deep inside of the concrete block are provided. Have a holding relationship, and the concrete block can be firmly held on the net-like piece.

According to the sixth aspect of the present invention, since the plurality of concrete blocks form a continuous row so as to form a partition space in cooperation with the other concrete block holding units, At the manufacturing stage, concrete
It is possible to simplify the production by reducing the number of locks, and after laying on the slope, by putting stuffing stones and the like in each compartment space, it is possible to secure the original functions such as seawall.

According to the invention of claim 7, since the frictional force increasing means for increasing the frictional force is provided on the upper surface of each concrete block, not only the gap between each concrete block but also each concrete block is provided. -The flow of soil covering etc. can be suppressed also by the upper surface of the block.

According to the eighth aspect of the present invention, the net-like piece is arranged substantially horizontally on the work surface, and an uncured concrete block is placed on the upper surface of the net-like piece to form the uncured piece. Since the lower part of the concrete block is caused to flow to the lower surface side of the mesh piece, the lower part of the uncured concrete block can wrap the mesh part in the lower region of the concrete block. After the hardening of the hardened concrete block, the hardened concrete block and the mesh piece can be held firmly. For this reason, the simple operation of placing the uncured concrete block on the upper surface of the net-like piece is achieved by the above-mentioned claim 1.
Can be obtained.

According to the ninth aspect of the present invention, since the mesh surface of the mesh piece is separated from the work surface by a predetermined distance upward from the work surface, a desired space is provided between the work surface and the mesh surface of the mesh piece. Space can be secured, and the uncured concrete block can flow into the space, and the concrete block flowing into the space allows the concrete block to flow.
The mesh portion in the lower region of the block can always be completely wrapped. For this reason, the holding force between the concrete block and the net-like piece can always be made desired.

According to the tenth aspect of the present invention, the uncured concrete block is placed on the upper surface of the mesh piece by disposing a mold on the mesh piece and putting the concrete in the mold. Because of the placement of the formwork on the mesh,
By simply putting the concrete in the mold, a concrete block having a desired shape to be held by the net-like piece can be easily and reliably manufactured.

According to the eleventh aspect of the present invention, before the concrete is inserted, the reinforcing material is held at the corresponding position of the concrete block on the net-like piece, and when the concrete is inserted, the reinforcing material is reinforced in the uncured concrete block. Since the material is embedded, in a series of steps such as formation of the concrete block and establishment of the holding relationship between the concrete block and the mesh piece, a reinforcing material as a means for reinforcing the holding relationship between the concrete block and the mesh piece is provided. Can be easily embedded in the concrete block.

According to the twelfth aspect of the present invention, a natural stone holding unit, in which a plurality of natural stones is bonded to one surface side of the flexible sheet member, is provided in a lower side area of the slope. A plurality of concrete block holding units as wall building units in which a plurality of concrete blocks are held on one surface side of the net-like piece in an upper side area of the slope. Since a plurality of concrete blocks are laid with the concrete block facing upward and the covering soil is piled up on the plurality of concrete block holding units, a plurality of natural stones are always provided in the lower side area of the slope where running water exists. The retaining unit performs a function of revetment etc. in harmony with nature, and a plurality of concrete block retaining units are usually located above the natural stone retaining unit where there is not much running water. While the unit functions as a substantial revetment, the covering on the plurality of concrete block holding units obscures the plurality of concrete block holding units to improve the appearance and return to the natural environment. Will promote. For this reason, by using the wall construction unit properly as described above, it is possible to use a concrete block which is cheaper than natural stone, and to have functions similar to those of a wall using all natural stone holding units. Thus, the cost can be reduced.

According to the thirteenth aspect of the present invention, the concrete block holding unit as a wall-building unit in which a plurality of concrete blocks are held on one side of the net-like piece on the slope is provided by the plurality of concrete blocks. A plurality of concrete block holding units are laid so as to be adjacent to each other while facing upward, and a plurality of concrete block holding units are provided for each of several groups by a plurality of concrete blocks in each of the concrete block holding units. Since the divided spaces are formed, and each of the divided spaces is filled with the filling material, and the covering soil is piled up on the plurality of concrete block holding units, each of the divided spaces is filled with the filling material. While the basic functions such as revetment can be secured, the concrete in each concrete block holding unit is used to form a compartment space. - based on being able to reduce the number of heat block, it becomes possible to easily manufacture. In addition, since the plurality of concrete block holding units are covered by the covering soil, the appearance can be improved and return to the natural environment can be promoted. In addition, the covering of the cover soil makes it possible to fill the waste with concrete as a filling material.

[0026]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 13 show a first embodiment. 1 and 2, reference numeral 1 denotes a seawall as a wall, and in this embodiment, the seawall 1 is a seawall slope 2 as a lower area 2a, an upper area 2b, and a horizontal upper surface. And an intermediate region 2c which continuously connects the lower region 2a and the upper region 2b. The intermediate region 2c is set assuming the low water level L1 of the river 3 or the like, and the lower region 2a is to be positioned lower than the low water level L1. On the other hand, the upper side area 2b is located above the low water level L1, and the upper part thereof is located further above the high water level L2 of the river 3 or the like.

As shown in FIG. 1, on the revetment slope 2
In the intermediate area 2c and the upper area 2b, a large number of concrete block holding units 4 as units for building a wall are laid. Middle area 2c of revetment slope 2
And in the upper side area 2b, it is for constructing a substantial revetment. Each of the concrete block holding units 4 is, as shown in FIGS.
In addition, a plurality of concrete blocks 6 are disposed on the front side (one side) of the wire netting 5, and each concrete block 6 is provided.
The block 6 is hardened so as to wrap the vicinity of the concrete block 6 of the wire net 5 therein.

More specifically, the wire mesh 5 is formed in a rectangular shape (in this embodiment, a square shape having a side of about 2 m), and a frame line 7 (in FIG. A frame 8a is provided by crossing a plurality of wires 8 inside the frame 8a.
Are formed. In the present embodiment, each wire 8 has a circular cross section as shown in FIG. 7, and the lower half of each wire 8 and the like has a width (in FIG. , The length in the left-right direction) (the corresponding portions are indicated by arrows in FIG. 7). Of course, instead of such a wire net 5, a synthetic resin net or wire is stretched horizontally within the frame 7 to form a mesh 8a or mesh, a cloth material such as a woven fabric or a non-woven fabric, or a vinyl material. A material obtained by laminating the net-like pieces on a sheet may be used.

As shown in FIG. 3, each of the concrete blocks 6 has a shape in which the upper surface 6a is narrower than the lower surface 6b, and the shape is as shown in FIGS.
For example, LD1 = 600 mm, LD2 = 350 mm, L
U1 = 500 mm, LU2 = 250 mm, LH1 = 30
0 mm and LH2 = about 20 mm. The lower portion (hardened portion) 9 of each concrete block 6 reaches the back surface (the other surface side) of the wire mesh 5 through the mesh 8a of the wire mesh 5, and wraps each wire 8 of the wire mesh 5. As a result, each concrete block 6 is
To be held firmly.

In this case, the circular cross section of the wire 8 of the wire mesh 5 also contributes to making the concrete block 6 hard to come off from the wire mesh 5. In other words, the circular shape of the wire rod 8 in the wire mesh 5 is such that its width (length in the left-right direction in FIG. 7) gradually increases in the lower half as it goes upward, so that the outer peripheral surface of the part The concrete block 6 has a physical locking relationship with a wide locking surface. In particular, as shown by the imaginary line in FIG. 7, even when the wrapping of the wire 8 of the wire mesh 5 by the concrete block 6 is not complete,
The locking relationship between the two 8 and 9 ensures that the concrete block 6 is held by the wire mesh 5. Of course, as long as such a function is exerted, it goes without saying that the cross section of the wire 8 may be other than circular.

Each of the concrete blocks 6 contains a reinforcing bar 10 as a reinforcing material as shown in FIGS. The reinforcing bar 10 is curved so as to bulge upward from the wire mesh 5, and a lower portion thereof is held by the wire mesh 5, and an upper portion thereof is deeply penetrated into the concrete block 6. Thereby, the holding relationship of the concrete block 6 with respect to the wire netting 5 is further strengthened.

The concrete block holding unit 4 is specifically manufactured as shown in FIGS. That is, first, the wire mesh 5 is placed on the horizontal work surface 11 a of the work table 11. This is because the wire net 5 is placed in a horizontal state and work is performed under that state.

In this case, the work surface 11a is preferably a release surface having good releasability, and a release sheet may be laid on the work table 11 to secure the releasability. Wire mesh 5
Is based on the fact that the diameter of the frame line 7 is larger than the diameter of the inner wire 8, and in the present embodiment, the wire 8 is knitted, so that the area of the wire 8 is slightly separated from the work surface 11 a. It is supposed to be. The wire mesh 5 holds the reinforcing bars 10 at positions corresponding to the respective concrete blocks 6 to be formed.
It protrudes upward from the wire mesh 5.

Next, a mold 13 for each concrete block 6 is placed on the wire netting 5 with one of the reinforcing bars 10 applied thereto, and shown in FIGS. As such, uncured concrete 12 is placed. Formwork 1
3 is used to form the concrete block 6 having the above-mentioned shape.
This is for applying an appropriate weight to the lower part of the door 12. As for the mold 13, in consideration of the removal of the mold 13,
A cylindrical shape that narrows upwards is used, and the internal space of the mold 13 has the same shape as that of the concrete block 6. Of course, the mold 13
May be used in which the above-mentioned molds 13 are integrated.

As a result, not only the concrete block 6 having the above-mentioned shape is formed in the mold 13 but also the uncured concrete 12 is separated from the wire mesh 5 based on its own weight.
Through the mesh 8a to the back side (the other side), and wraps around the wire mesh 5 in the area below the concrete block 6. In this case, as described above, the wire mesh 5
Since the wire 8 region is slightly separated from the work surface 11a and a space is slightly opened below the wire 8 region, the uncured concrete 12 enters the space,
The concrete 12 completely encloses the wire netting 5 part. In addition, the outer surface of the uncured concrete 12 that has entered the back side of the wire mesh 5 is formed as a flat surface by the work surface 11a.

Finally, the concrete in each mold 13
When the mold 12 is cured, each mold 13 is removed. A concrete block holding unit 4 which is held as a concrete block 6 in a fixed shape by a wire mesh 5 and is a product.
Is completed. Of course, in this case, the concrete portion 9 surrounding the wire mesh 5 is also hardened, and the hardened portion 9 firmly holds the concrete block 6 with respect to the wire mesh 5.

As another mode for putting the concrete 12 in the mold 13, as shown in FIG. 11, a frame 14 is placed on the worktable 11, and the wire mesh 5 is placed on the frame 14. Good. As a result, the lower space 15 in the area of the wire 8 of the wire mesh 5 is made larger, and the concrete 12 entering the lower space 15 can completely wrap the wire mesh 5 portion.

The explanation is returned to the revetment 1. At the time of laying, a large number of such concrete block holding units 4 are connected to adjacent concrete block 6 units via a connecting member 16 as shown in FIG. For example, as shown in FIGS. 12 and 13, a connector for connecting and disconnecting both ends of a U-shaped fitting 17 with a screw pin 18 is used as the connecting tool 16, and FIG.
As shown in the figure, in order to prevent corrosion etc.,
Or a loop 19 is used.

As shown in FIG. 1, a cover soil 20 is piled on the plurality of concrete block holding units 4. The cover 20 is used to return to the natural environment at an early stage to secure an area for a walk or the like, and to hide the concrete block holding unit 4 to improve the appearance. In this case, the cover soil 20 is located above the low water level L1 of the river 3 or the like.
Is usually hard to be washed away by running water.

As shown in FIG. 1, on the revetment slope 2
In the lower side area 2a, a large number of natural stone holding units 21 are laid as wall building units. This is to always prevent the soil from being removed by the flowing water at the low water level L1 where the flowing water exists, and to ensure a naturally harmonious appearance. Each of the natural stone holding units 21 is provided with a plurality of natural stones 2 on the surface of the wire mesh 5 with an adhesive.
The natural stone holding units 21 adjacent to each other are connected via a connecting member 16 as in the case of the concrete block holding unit 4. Such a large number of natural stone holding units 21 form an inclined surface that is continuous with the surface of the covering soil 20, so that a walk or the like can be easily performed between the surface area of the covering soil 20 and the natural stone holding unit 21. ing.

In FIG. 1, reference numeral 23 denotes a suction prevention seal.
The suction-prevention sheet 23 is laid on the revetment slope 2 before the concrete block holding unit 4 and the natural stone holding unit 21 are laid to prevent the suction of soil and the like. This suction prevention sheet 23
Is relatively thin, and for convenience, the line of the revetment slope 2 is also used.

FIGS. 15 to 18 show a second embodiment, and FIGS.
FIG. 22 shows a third embodiment. In each of the embodiments, the same components as those in the first embodiment are denoted by the same reference numerals, and description thereof will be omitted.

In the second embodiment, as shown in FIGS. 15 to 18, a net-like piece has a laminated structure of a wire netting 5 and a net-like body 24 made of a synthetic resin. Is held. The wrapping of the concrete block 6 into the wire netting 5 and the mesh body 24 by the concrete block 6 is increased so that the concrete block 6 is held more firmly. The reason for this is that the wire mesh 5 is used for the suppression, and furthermore, the use of the net-like body 24 made of a synthetic resin prevents corrosion and the like after the laying, thereby providing a semi-permanent structure. In this case, the synthetic resin used for the mesh body 24 is selected from the viewpoint of preventing corrosion and the like, and the mesh 25 a is formed by the wire 25 inside the mesh body 24. Of course, a laminated structure in which the net-like body 24 is disposed below the wire netting 5 may be adopted.

As shown in FIGS. 15 and 16, a nonwoven fabric 26 as a frictional force increasing means is attached to the upper surface of each of the concrete blocks 6. The nonwoven fabric 26 has a function of preventing the covering soil 20 from sliding down on the upper surface of each concrete block 6, whereby the holding of the covering soil 20 can be further enhanced. As another embodiment, irregularities may be formed on the upper surface of the concrete block 6.

In the concrete block holding unit 4 according to the third embodiment shown in FIGS. 19 to 22, a plurality of concrete blocks 6 are combined to form a substantially cross-shaped arrangement (see FIG. 19), or a plurality of concrete blocks are arranged. 20 are combined into a substantially H-shaped arrangement (FIG. 20).
reference). When a plurality of such concrete block holding units 4 are laid on the revetment slope 2, as shown in FIG. 22, the plurality of concrete block holding units 4 are provided.
A plurality of partition spaces 27 are to be formed by the concrete block 6 in FIG.

As shown in FIG. 22, each section space 27 is to be filled with a stuffing stone 28 or the like. As the stuffing stone 28, natural stone or the like at the construction site may be used. Instead of the stuffing stone 28, a concrete waste material or the like may be used.

Then, as shown in FIG. 21, the covering soil 2
0 is piled up, whereby a continuous slope of the revetment 1 is to be formed.

[Brief description of the drawings]

FIG. 1 is an explanatory view showing a revetment according to a first embodiment.

FIG. 2 is a plan view illustrating a state in which the concrete block holding unit according to the first embodiment is laid on a seawall slope.

FIG. 3 is a perspective view showing a concrete block holding unit according to the first embodiment.

FIG. 4 is a front view showing the concrete block holding unit according to the first embodiment.

FIG. 5 is a side view of FIG. 4;

FIG. 6 is a bottom view of FIG. 4;

FIG. 7 is an explanatory diagram showing a relationship between a wire rod of a wire mesh and a concrete block.

FIG. 8 is a view for explaining a manufacturing process of the concrete block holding unit according to the first embodiment.

FIG. 9 is a view showing a continuation of FIG. 8;

FIG. 10 is a view showing a continuation of FIG. 9;

FIG. 11 is a view for explaining the manufacture of another embodiment of the concrete block holding unit according to the first embodiment.

FIG. 12 is a view showing a state in which the concrete block holding units are connected to each other using a connecting tool.

FIG. 13 is a perspective view showing a connecting tool used in FIG. 12;

FIG. 14 is a view showing a state in which the concrete block holding units are connected to each other using another connecting tool.

FIG. 15 is a plan view showing a concrete block holding unit according to a second embodiment.

FIG. 16 is a front view of FIG.

FIG. 17 is a plan view showing a synthetic resin net used in the concrete block holding unit according to the second embodiment.

FIG. 18 is a plan view showing a wire mesh used for the concrete block holding unit according to the second embodiment.

FIG. 19 is a plan view showing a concrete block holding unit according to a third embodiment.

FIG. 20 is a plan view showing another concrete block holding unit according to the third embodiment.

FIG. 21 is an explanatory view showing a revetment according to a third embodiment.

FIG. 22 is a plan view illustrating a state in which the concrete block holding unit according to the third embodiment is laid on a seawall.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Revetment 2 Revetment slope 4 Concrete block holding unit 5 Wire mesh 6 Concrete block 8 Wire rod 9 Lower part of concrete block 10 Reinforcing bar 11 Work table 11a Work surface 12 Concrete 13 Formwork 14 Frame 20 Covering soil 21 Natural stone Retaining unit 22 Natural stone 24 Reticulated body 25 Wire rod 26 Non-woven fabric 27 Partition space 28 Filling material

Claims (13)

[Claims] 1. A plurality of concrete blocks are disposed on one side of the reticulated piece on the reticulated piece, and each of the concrete blocks wraps around the location of the respective one of the reticulated pieces in the reticulated piece. A wall building unit, which is hardened in a state. 2. The wall construction unit according to claim 1, wherein the net-like piece has a laminated structure of first and second net-like pieces. 3. The unit for building a wall according to claim 2, wherein the first net-like piece is formed of a metal reinforcing body, and the second net-like piece is made of a synthetic resin. 4. The cross-section of the constituent wire of the net-like piece according to claim 1, wherein the cross-section of the constituent wire of the net-like piece is enlarged in a direction along the net-like surface of the net-like piece from the other surface side of the net-like piece toward one side. A wall construction unit, which is set so as to have: 5. The method according to claim 1, wherein a plurality of reinforcing members are held by the net-like piece, and each of the reinforcing members is embedded in each of the concrete blocks. Unit for wall construction. 6. The concrete block according to claim 1, wherein the plurality of concrete blocks form a continuous row so as to form a partition space in cooperation with another concrete block holding unit. A wall construction unit. 7. The unit for constructing a wall according to claim 1, wherein a frictional force increasing means for increasing a frictional force is provided on an upper surface of each of the concrete blocks. . 8. A net-like piece is arranged on a work surface in a substantially horizontal state, and an uncured concrete block is placed on an upper surface of the net-like piece. A method for producing a wall-building unit, comprising flowing the mesh to the lower surface side. 9. The method according to claim 8, wherein the mesh surface of the mesh piece is spaced upward from the work surface by a predetermined distance. 10. The uncured concrete block according to claim 8 or 9, wherein the uncured concrete block is placed on the upper surface of the mesh piece by arranging a mold on the mesh piece and placing the concrete in the mold. A method for manufacturing a wall construction unit. 11. The uncured concrete according to claim 10, wherein a reinforcing material is held on the mesh piece at a position corresponding to the uncured concrete block before the concrete is inserted. -A method for manufacturing a wall-building unit, comprising embedding the reinforcing material in a block. 12. A natural stone holding unit having a plurality of natural stones bonded to one surface side of a flexible sheet body in a lower side area of a slope, and a plurality of natural stone holding units which face the plurality of natural stones upward. A concrete block holding unit as a unit for building a wall, in which a plurality of concrete blocks are held on one surface side of the mesh piece, in an upper region of the slope, and the plurality of concrete blocks are placed on the upper side. A plurality of concrete blocks are laid on the concrete block holding unit, and a cover is laid on the plurality of concrete block holding units. 13. A concrete block holding unit serving as a wall building unit in which a plurality of concrete blocks are held on one side of a net-like piece on a slope, while the plurality of concrete blocks are directed upward. A plurality of concrete block holding units are laid so as to be adjacent to each other, and the plurality of concrete block holding units form a partitioned space by the plurality of concrete blocks in each of the concrete block holding units for every several groups. A wall body, wherein each of the compartment spaces is filled with a filling material, and a cover soil is laid on the plurality of concrete block holding units.