JP3017496B1 - Retaining wall block and method of manufacturing the same - Google Patents

Abstract

The present invention relates to a retaining wall block and a method of manufacturing the same.
Retaining wall block which increases the degree of exposure of natural stone, arranges natural stone close to the natural state, secures natural stone to retaining wall block, and is easy to manufacture, and a method of manufacturing the same Is to provide. A reticulated board is embedded in the surface of a concrete block board and fixed with concrete.
A retaining wall block in which a stone fastener is attached to a part of natural stone or pseudo-natural stone, and the stone fastener is hooked to the mesh-like plate and fixed, and the position of the surface of the formwork in which the block substrate is manufactured. Then, after temporarily fixing the mesh plate, the ready-mixed concrete is poured into the formwork from above the mesh plate on the surface portion, and the ready-mixed concrete is stopped at a position slightly higher than the mesh plate on the surface portion, This is a method for manufacturing a retaining wall block in which natural stone or pseudo-natural stone having a stone fixing tool attached to the bottom is fixed by hooking the stone fixing tool on the mesh plate.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to the technical field of a retaining wall block for retaining walls, seawalls and the like and a method for producing the same, particularly a retaining wall block having natural stone or pseudo-natural stone on the surface and a method for producing the same. .

[0002]

2. Description of the Related Art In recent years, it has become a major social problem how a revetment such as a concrete block used in an upstream part of a river can harmonize with nature and coexist with animals and plants. In particular, flood control measures are indispensable in the upstream to prevent debris flow, but using conventional concrete blocks destroys the natural environment and results in an inorganic landscape. In view of this, the construction of river banks, slopes, sloping surfaces, road side walls, and the like, having the appearance of natural stone or pseudo-natural stone, has been increased in many cases.

Conventionally, the construction of retaining walls and revetments having the appearance of natural stones or pseudo-natural stones has been carried out as shown in FIG.
Crusher foundation a and concrete foundation b were constructed as the foundation of revetment, and backing material c was constructed on the wall of soil A of the foundation,
A drain pipe d is provided on the surface of the backing material,
Pour the ready-mixed concrete that will become the backing concrete e,
Before the ready-mixed concrete was hardened, a natural stone for scenic views, boulder f, was implanted in the ready-mixed concrete and fixed.

A retaining wall block having natural stone fixed on its surface is already known as disclosed in Japanese Patent Publication No. Hei 6-37042. These known retaining wall blocks are:
As shown in FIG. 14, the block board g of the retaining wall block has natural stones h arranged on the floor, and a resin j (agar, etc.) and sand k are charged from between the natural stones h, and the resin is cured. Natural stone h
After being fixed, ready-mixed concrete was cast into a formwork (not shown) from the opening m of the formwork that hits the leg 1 on the back surface of the retaining wall block.

Further, from the viewpoint of preserving the natural environment and placing importance on the natural scenery, it is also possible to expose a part of the soil on the wall surface from the gap between the stones so that the plants are vegetated.
It has been proposed in 2557981 and the like. Seawall mats with natural stones fixed to wire mesh are also known as Japanese Patent Application Laid-Open No. 10-280360, but have different uses and are not used for retaining walls on steep slopes, because they are not blocks. .

[0006]

However, FIG.
The conventional method of pouring the ready-mixed concrete into the backing material c on the wall as shown in the above is a time-consuming and requires advanced technology, it must be a skilled constructor, There was a problem that was avoided. Also, in this construction, the fixation of the cobblestone f is not reliable unless more than half of the cobblestone f is implanted in the ready-mixed concrete. Rather, even if the stones are arranged, it is necessary to work around the stones with a rag or the like so that the ready-mixed concrete does not come out to the front, which is a troublesome operation.

On the other hand, a conventional Japanese Patent Publication No. 6-37042 shown in FIG.
As for the retaining wall block in which natural stone is fixed on the surface as disclosed in the Japanese Patent Publication, the fixing of the cobble stone f is not reliable unless more than half of the cobble stone f is planted in ready-mixed concrete, and the natural scenery is emphasized. From the viewpoint of exposure to natural stone, the degree of exposure of natural stone is small and it is not satisfactory.In addition, natural stone h is arranged and resin j (agar, etc.) and sand k are put in between natural stones h during production. It takes about one hour to fix the stone h, and there is a problem that much labor and time are required. Also, from the opening m of the formwork which hits the leg l on the back of the retaining wall block. It is only possible to cast ready-mixed concrete, but the opening m is a small diameter, it takes time to finish placing the ready-mixed concrete, and it is enough to allow the ready-mixed concrete to enter the gap between natural stones,
There has been a problem that the manufacturer requires labor and skill.

Further, Japanese Utility Model Registration No. 2557, in which part of the soil on the wall surface is exposed from the gap between the stones so that the plants are vegetated.
Retaining wall blocks such as 981 require a lot of time and effort to manufacture, as described above, and also have the problem that the degree of exposure of the stone is low and it is not sufficiently satisfactory from the viewpoint of natural scenery. there were.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a retaining wall block and a method of manufacturing the same, which increase the degree of exposure of natural stone and bring natural stone closer to the natural state. An object of the present invention is to provide a retaining wall block that is arranged, secures natural stones to the retaining wall block, and is easy to manufacture, and a method of manufacturing the same.

[0010]

[0011]

Means for Solving the Problems To solve the above problems,
For example, the invention of claim 1 is a concrete blower.
Embed the mesh plate in the surface of the
Set with natural stone or stone on the bottom of natural stone or pseudo natural stone
Attach the material fixing device, and attach the stone material fixing device from above the mesh plate.
Natural stone or pseudo-natural stone penetrating through the mesh plate and embedded
Are arranged on a mesh plate, and
A through hole having a desired area penetrating to the back surface portion is provided at the center of the front surface portion of the block substrate with a reed, and a natural stone or a pseudo natural stone is provided in the mesh plate of the through hole portion. Are bonded, welded, or glued together, increasing the exposure of natural stone and
The height of the top of the surface of the natural stone is almost as high as that of natural retaining walls.
Locks and secures the natural stone to the block board
The vegetation vegetates from the through-hole, and becomes a retaining wall block closer to the natural scenery.

In order to solve the above-mentioned problem, the invention according to claim 3 is to temporarily fix a net-like plate at a position of a surface portion of a mold for manufacturing a block board, and then to attach the surface portion to the mold. The ready-mixed concrete is poured from above the mesh plate, and the ready-mixed concrete is injected to a position slightly higher than the mesh plate on the surface, and a stone fixing device is attached to the bottom of natural stone or pseudo-natural stone. Either embed the fastener through the mesh plate from above the mesh plate and fix it with concrete,
Alternatively, since it is a method of manufacturing a retaining wall block adhered to the mesh plate itself, while increasing the exposure of natural stone,
The height of the top of the natural stone surface can also be used to manufacture a retaining wall block with unevenness close to nature, and the natural stone can be securely fixed to the block substrate, and the manufacture becomes extremely easy.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present inventor has solved the inconvenience of pouring ready-mixed concrete from a small opening m of a formwork corresponding to a leg 1 (FIG. 14) on the back surface of a conventional retaining wall block. As a result of intensive research, they came up with a method of casting from the surface of a retaining wall block. And since it can be cast from the surface of the retaining wall block and the natural stone can be sufficiently exposed, and the height of the natural stone surface apex is almost natural and has large undulations, As time passes, earth and sand are deposited between the stones, and the plants can be grown and brought to a more natural state. Further, a block for a retaining wall having sufficient strength and a method for producing the same have been conceived.

An embodiment of a retaining wall block and a method for manufacturing the same according to the present invention will be described below with reference to the drawings. [First Embodiment] FIG. 1 is a perspective view of a first embodiment of a retaining wall block. Reference numeral 1 denotes a retaining wall block, and a block substrate 2 forms a main body of the retaining wall block 1. A mesh-plated expanded metal (steel material) 3 is fixed to the front surface 2a of the block substrate 2 so that concrete is slightly embedded therein, and a pair of legs 2c is provided on the rear surface 2b of the block substrate 2 near both ends. A fixing projection 2d for connecting and fixing the adjacent retaining wall block 1 is provided outside the leg 2c so as to project outward as described later. In addition, the expanded metal 3 for fixing natural stones may be one in which reinforcing bars are arranged vertically and horizontally as long as it is a net shape. On the other hand, a natural stone 4 is fixed on the upper surface of the expanded metal 3.
As shown in (a), a hole 4b is provided in the bottom 4a of the natural stone 4,
The end 5b of the stone fixing bracket 5 using the anchor pin 5a for fixing the natural stone is inserted into the hole 4b together with the binding member 5c, and concrete is fixed by solidification. This stone fixing bracket
5 is a bundle of two rod-shaped steel anchor pins 5a,
The tip 5d at the other end is open right and left in a T-shape. The tip 5d need not be T-shaped, but may be a tip 5e which is opened right and left as shown by an arrow in FIG. 2 (b), and bundles three or more steel materials of the rod-shaped anchor pin 5a. May be used.

FIG. 3 shows a stone fixing bracket 5 of the natural stone 4.
As shown in FIGS. 3 (a) and 3 (c) in a development view of the retaining wall block 1, the expanded metal 3 penetrates the mesh and is cut into the block substrate 2 and is fixed with concrete. Here, the mesh plate in the present invention must have the strength to support the natural stone 4 with the mesh plate.
The expanded metal 3 is suitable as shown in FIG. 1. The expanded metal 3 is a product in which a zigzag-shaped cut is formed in a metal plate and simultaneously expanded to be processed into a rhombic or turtle-shaped mesh. Since there is a large width, as shown in FIG. 4 (b), even if the heavy weight 3a is placed, the distortion is small and the weight 3a has a large strength. The size of the retaining wall block 1 in this embodiment is W125cm × H80cm × D35cm.
It is sufficient to appropriately arrange the cobblestones, which are natural stones 5,
As shown in FIG. 3 (b), a natural landscape can be obtained by fixing irregularly. Further, since the position of the bottom 4a of the natural stone 4 is constant, the height of the surface vertex of the natural stone has irregularities close to nature and has large undulations. For this reason, when several years have passed, earth and sand are deposited between the stones, and the plants can be grown and brought to a more natural state, and furthermore, the retaining wall block has a sufficient strength.

Next, a method of manufacturing the retaining wall block of the embodiment will be described mainly with reference to FIGS. First, as shown in FIG.
Is fixed with the surface of the large opening 6a, which is the surface of the retaining wall block 1, facing upward. Then, the mesh-like expanded metal 3 is fixed to a locking member 6a that can be peeled off or cut off at the upper side surface of the formwork 6. Next, as shown in FIG. 6, the ready-mixed concrete 7a is poured from the hopper 7 into the form 6 through the mesh of the expanded metal 3, and the ready-mixed concrete 7a is put in until the outer frame 3b of the expanded metal 3 is hidden. Furthermore, as shown in FIG. 7, the stone fixing metal fitting 5 fixed to the bottom 4a of the natural stone 4 shown in FIG. 2 is injected so as to penetrate the mesh of the expanded metal 3 and be buried in the ready-mixed concrete 7a. The natural stone 4 is fixed on the expanded metal 3. At this time, the natural stones 5 do not sink due to the expanded metal 3 and can be arranged while visually confirming that they are close to nature. However, if it is filled too much, the goodness of the natural stone will be impaired, so the position of the ready-mixed concrete 7a is 2-3cm from the top of the expanded metal 3.
A higher degree is appropriate. Finally, when the ready-mixed concrete 7a has hardened, the locking member 7a is peeled off, or the cut-off retaining wall block 1 is taken out of the formwork 6.

In the present embodiment, since the manufacturing method is as described above, the productivity is lower than that of the conventional method of casting ready-mixed concrete from the opening of the formwork which hits the leg on the back surface of the retaining wall block. The work efficiency is good because the arrangement of natural stones 4 can be confirmed from the top of the surface, and the height of the surface is constant because the stones are arranged downward in the conventional manufacturing method. In the manufacturing method, natural stones are arranged from above, so the surface height has irregularities close to nature and has large undulations, so after several years, sediment will be deposited between the stones and plant Grow up and become more natural.

Further, a method of using the retaining wall block of this embodiment will be described mainly with reference to FIGS. 8 and 9 are cross-sectional views when the retaining wall block 1 is constructed as a stacking block. In FIG. 8, the retaining wall blocks 1 are arranged in a plurality in the horizontal direction in contact with the soil A on the wall surface. These retaining wall blocks 1 are connected to the outside of the legs 2c of the block board 2 in the adjacent retaining wall blocks 1 and the leg portions.
Reinforced concrete 8 is inserted and fixed in a space formed by fixed projection 2d protruding outside 2c. FIG.
Is a longitudinal section, but crusher foundation a and concrete foundation b were constructed as in the past as a foundation for retaining walls and seawalls,
After constructing the backing material c on the wall surface, draining pipes d may be provided at appropriate locations and the retaining wall block 1 may be stacked. It is only necessary to cast ready-mixed concrete so that it is flat.

As the concrete foundation b, for example, a solidification block disclosed in Japanese Utility Model Publication No. 7-45616 or the like or a known solidification block n as shown in FIG. 10 may be used. n is a block with a low center of gravity and excellent stability, and a large hole n1
It is constructed so that it is lined up above the hole n1 and solidified, reduces the lifting pressure and reduces the wave launch height, and is used for retaining walls and seawalls It is suitable for a foundation when the example retaining wall block 1 is constructed.

The retaining wall and revetment constructed with the retaining wall block 1 of the present embodiment can be used even on a steep slope at the upstream of a river.
Since there is little work on site, construction can be done quickly and easily even by non-experts, a natural landscape can be obtained, and the surface can have large undulations of natural stone. In between, sediment accumulates, plants grow and become more natural. Therefore, it is not only effective as a flood control measure, but also can be used as retaining walls and seawalls that contribute to the protection of nature without destroying ecosystems.

Second Embodiment Next, a retaining wall block 1a according to a second embodiment will be described. The configuration of the second embodiment is the same as that of the first embodiment except that the through-hole 9 is provided at the center of the block board 2 of the first embodiment, and therefore, the description other than the description of the through-hole 9 is omitted. I do. Therefore, the configuration of the through hole 9 will be described with reference to FIGS. 11A and 11B.
Shows only the block board 2 of the second embodiment, and a through hole 9 having a size of W60 cm × H40 cm is provided at the center of the surface 2 a of the block board 2. Can be Next, the retaining wall block 1 shown in FIG.
FIG. 7 shows a state of connection between the block substrate 2 and the expanded metal 3 of the second embodiment, and
The plated expanded metal 3 is fixed to the surface portion 2a of the block substrate 2 so as to be slightly embedded in the concrete in the same manner as in the manufacturing method 1). Then, the second natural stone 4 is fixed to the expanded metal 3.
The retaining wall block 1 of the embodiment is as shown in FIG.

The fixing means of the natural stone 4 may be fixed by the same method as in the manufacturing method of the embodiment at the portion in contact with the block substrate 2. Since it is not possible to use the fixing means due to the solidification of the concrete, the length of the rod-shaped steel anchor pin 5a itself is shortened, and the T-shaped portion of the tip 5e is lengthened and hooked onto the expanded metal 3 or, depending on the case, the anchor pin
The metal 5a and the expanded metal 3 may be welded, bound with a stainless wire, bonded, or fixed by any other appropriate means.

The retaining wall block 1 of the second embodiment has the same ease of manufacture and action as the first embodiment, but the height of the surface of the natural stone is similar to that of the first embodiment. In addition to the fact that there are large undulations, sediment is deposited between the stones after a few years, and plants grow and become more natural, and in addition, the through hole 9 has At the same time as the sediment A on the back enters the back of the expanded metal 3, the gaps of the natural stones are filled with the earth and sand, so that a greening structure can be obtained. And deep root plants can be grown. However, the retaining wall block 1 of the second embodiment can be made into a retaining wall, seawall, or the like that is more natural, but penetrates by the flow of water as compared with the retaining wall block 1 of the first embodiment. The earth and sand may flow out of the hole 9.

Therefore, the optimum construction location of the retaining wall block 1 of the first and second embodiments will be described with reference to FIG.
When the retaining wall block 1 of the second embodiment is used at the seawall E where the river C is in contact with the large road D, the ground receives the lateral pressure from the road, and the soil is always filled with the through-hole 9. And the seawall may collapse if left unattended.
The retaining wall block 1 according to the second embodiment may be used at the revetment point F where the lateral pressure from the road is not applied, and the revetment is more natural.
May be used. Retaining wall block 1 of these embodiments
Naturally, unlike a revetment mat in which natural stones are fixed to a wire net, blocks are piled up, so that they can be used for retaining walls on steep slopes such as upstream of rivers and revetments.

If the features of the present invention are not impaired, it is needless to say that the present invention is not limited to the above-described embodiment, and can be applied not only to seawalls but also to ordinary deep joint blocks. Further, for example, artificial natural artificial stone may be used instead of natural stone, and if expanded metal 3 can support natural stone 4 in a net-like form, reinforcing bars may be arranged vertically and horizontally instead of expanded metal 3 to form a net. Or a synthetic resin net. Also, the shape of the retaining wall block 1 is rectangular in the first and second embodiments, but it is needless to say that a combination of a trapezoid and an inverted trapezoid, a combination of a hexagon, and a combination of a cross and a rectangle may be used. It is.

[0026]

[0027]

As described above, according to the first aspect,
According to the invention, the surface portion of the concrete block substrate
The mesh plate is embedded in the mesh and the mesh plate is fixed with concrete,
Stone fasteners are attached to the bottom of natural stone or pseudo-natural stone
Piercing the stone fixing device through the mesh plate from above the mesh plate
Embed and arrange natural stone or pseudo natural stone on reticulated plate
And block the stone fixture with concrete.
Because it is a retaining wall block fixed to the substrate side, natural stone
The degree of exposure can be greatly increased, and the height of the natural stone surface top
The effect is that it becomes a retaining wall block with very close irregularities.
And a few years later, there is sediment between the stones
When it accumulates, plants grow and become more natural
Effect, and fixation of natural stone on block substrate
Is strong and reliable, and requires less on-site work.
In the center of the front surface of the block substrate, a through-hole having a desired area penetrating to the back surface is provided, and natural stone or pseudo-natural stone is bound and welded to the mesh plate of the through-hole. In addition to the effect of claim 1, since the soil and sand in the through hole can maintain a large wet state, organisms and deep root plants can be grown, and plants can be vegetated from the through hole. In addition, it is possible to obtain an effect that the retaining wall block provides a more natural scenery.

According to the third aspect of the present invention, after the mesh plate is temporarily fixed to the position of the surface of the mold for manufacturing the block substrate, the ready-mixed concrete is placed on the mold from above the mesh of the surface. And then inject until the ready-mixed concrete is slightly above the mesh plate on the surface, attach a stone fastener to the bottom of natural stone or pseudo-natural stone, and place the stone fastener above the mesh plate. It is a method of manufacturing a retaining wall block that penetrates the mesh plate and is embedded and fixed with concrete, or is fixed to the mesh plate itself. It is possible to manufacture a retaining wall block having unevenness with a height close to nature, and to secure the fixation of the natural stone to the block substrate and to obtain an effect that the manufacture is easy.

[Brief description of the drawings]

FIG. 1 is a perspective view of a retaining wall block 1 according to a first embodiment of the present invention.

FIG. 2 is a side view of the processed natural stone used in the examples.

3 (a) is a lateral side view of the retaining wall block 1 of the first embodiment, FIG. 3 (b) is a plane lateral side view, and FIG. 3 (c) is a vertical side view.

FIG. 4 (a) is a perspective view of an expanded metal 3 which is a mesh plate used in the embodiment, and FIG. 4 (a) is an explanatory view.

FIG. 5 is an explanatory diagram of an initial stage in the method of manufacturing the retaining wall block 1 of the first embodiment.

FIG. 6 is an explanatory view of an intermediate stage in the method of manufacturing the retaining wall block 1 of the first embodiment.

FIG. 7 is an explanatory view of a final stage in the method of manufacturing the retaining wall block 1 of the first embodiment.

FIG. 8 is a cross-sectional view in which the retaining wall block 1 of the first embodiment is constructed.

FIG. 9 is a longitudinal sectional view in which the retaining wall block 1 of the first embodiment is constructed.

FIG. 10 is a perspective view of an anchoring block used in the construction of the first embodiment.

FIG. 11 is an explanatory view of a retaining wall block 1 according to a second embodiment of the present invention.

FIG. 12 is a retaining wall block 1 according to the first and second embodiments of the present invention.
Explanatory diagram explaining the parts that use

FIG. 13 is a longitudinal sectional view of a retaining wall and a revetment having the appearance of a conventional natural stone.

FIG. 14 is an explanatory view of a retaining wall block having the appearance of a conventional natural stone.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Block for retaining wall 2 ... Block board 2a ... Surface part 2b ... Back part 2c ... Leg part 2d ... Fixing protrusion part 3 ... Expanded metal (net-like board) 3a ... Weight 3b ... Surface frame 4 ... Natural stone (cobblestone) 4a… Bottom part 4b… Hole part 5… Stone material fixing bracket 5a… Anchor pin 5b… End part 5c… Bundling member 5d, 5e… End part 6… Form frame of retaining wall block 1 6a… Locking member 7… Hopper 7a… Ready-mixed concrete 8 ... reinforced concrete 9 ... through-hole A ... earth and sand B ... sloped part C ... river D ... road E, F ... seawall

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁷ , DB name) E02D 29/02

Claims (2)

(57) [Claims] 1. A net-like plate is embedded in the surface of a concrete block substrate, and the net-like plate is fixed with concrete, and a stone fixing device is attached to the bottom of natural stone or pseudo-natural stone. Natural stones or pseudo-natural stones are arranged on the mesh plate by penetrating the mesh plate from above, and the stone fixing tool is fixed to the block board side with concrete, and the natural stone or pseudo-natural stone is fixed on the surface of the block board.
In the center, a through hole with a desired area that penetrates to the back
And a natural stone or pseudo-self
A block for retaining walls , which is made by binding, welding, or gluing and fixing stones . 2. A mesh plate is temporarily fixed to a position of a surface portion of a mold for manufacturing a block substrate, and then the ready-mixed concrete is poured into the mold from above the mesh plate on the surface portion. Injecting until it is slightly above the mesh plate of the part, attaching a stone fastener to the bottom of natural stone or pseudo-natural stone, and embedding the stone fastener through the mesh plate from above the mesh plate Fixed with concrete,
Alternatively, a method for producing a retaining wall block, wherein the method is fixed to a net plate itself.