JP2945337B2 - Retaining wall structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a retaining wall structure in which a large number of intelligent blocks are densely upset and constructed.

[0002]

Defined in the concrete city blocks JISA5323 used for retaining wall construction THE INVENTION An object you try solving], the number of city blocks used per 1 m ² in JIS standard, the weight of Kakumachi block, 1 m ² The total weight per hit, the depth dimension from the face body portion to the holding portion, and the like are defined. It should be noted that there is a degree of freedom regarding the design and use of the shape of the face body portion and the retaining portion.

[0003] As shown in Fig. 1, the above-mentioned intellectual block is formed by concrete molding such that variously shaped retaining portions 2 are simply protruded from the rear surface of a rectangular parallelepiped face body portion 1. Even though the retaining wall constructed densely with Machin blocks can secure the required strength, the front surface of the retaining wall is flat as a whole, and in addition, there are linear and grid-like joints between Machin blocks. It was exposed and markedly impaired the aesthetics.

Although the above-mentioned block has been widely used at present, in order to solve the above-mentioned problems, in recent years, as shown in FIG. A known block to which the layer 4 is adhered is used.

Conventionally, however, it has been a basic specification to form a retaining wall with a plane conforming to a level thread by densely arranging one kind of known block having the same shape as shown in FIG. 1 or FIG.
As shown in FIG. 2, even if a mortar decorative layer 4 having a split-skin-like uneven surface 5 is provided on the front face of each face body portion 1 of each of the intermediate blocks, the uneven surface 5 in each intermediate block is uniform. However, it is only visually perceived that each of the knowledge blocks arranged on the same plane has a surface roughness, and it cannot be denied that the entire retaining wall is a planar structure.

[0006] In addition, the intermediate block shown in FIG.
2 has a basic specification in which a frame-shaped slope 3 is formed in a continuous portion between a front surface 6 and a peripheral side surface 7 to prevent chipping of corners and form joint grooves 8. As shown in FIG. The intellectual block simply wears the mortar decorative layer 4 having the above-mentioned uneven surface 5 in the shape of a cracked stone on the inner area (front surface 6) of the face body portion 1 surrounded by the frame-shaped slope 3 while maintaining the basic specifications. Therefore, as shown in FIGS. 3 and 4, the retaining wall constructed by using the above-described slack block has the slope 3 and the joint groove 8 formed by the slope 3 exposed in a frame shape in each block. As a whole, straight and lattice-shaped joint grooves are exposed, which has a problem of deteriorating aesthetic appearance. The above is the technical background of the present invention.

The present invention is to provide a retaining wall structure that appropriately solves the above problems.

[0008]

The retaining wall structure according to the present invention comprises two or more types of intellectual blocks described later, and each of the intellectual blocks has a common structure of a rectangular parallelepiped shape forming a wall portion of the retaining wall. It has a face body portion and a recessed portion protruding from the rear surface of the face body portion and embedded in a backing material cast on the rear surface of the wall portion, and both are integrally formed of concrete.

In addition, a mortar decorative layer whose surface is made of a cracked stone-like surface is provided on the front surface of the face body portion, and two or more kinds of blocks having a difference in the thickness of the mortar decorative layer are used. Build a retaining wall.

The various blocks are mixed in the retaining wall, and are installed so that the front surfaces of the respective face members are substantially flush with each other, so that there is a height difference substantially corresponding to the thickness difference inherent in each mortar decorative layer. Are adjacent.

[0011] The retaining wall constructed with the above-mentioned chichi block and the retaining wall constructed with the conventional chichi block unit of FIGS. 2, 3 and 4 have an external appearance formed by a set of mortar decorative layers ( (Finished finish).

In the retaining wall constructed by the above-described block unit, a large number of uneven surfaces of the mortar decorative layer having a high degree of protrusion and a surface of the mortar decorative layer having a low degree of protrusion are gathered adjacent to each other while being mixed in a large number. Synergistically with the shading effect, the retaining wall as a whole will exhibit the effect of the split-stone-like unevenness, creating a near-natural landscape.

[0013] The high and low uneven surface of the split stone shape are mixed to create an inverse shadow due to the elevation, and the appearance of linear joints between each of the intellectual blocks is eliminated as much as possible. Improve brewing.

[0014] Preferably, the above-mentioned uneven surface in the shape of a broken stone is provided on the surface extending from the front surface to the peripheral side surface of the decorative mortar layer. As a result, the mortar decorative layer of each block is adjacent to each other with the uneven surface of the peripheral side surface, and together with the height difference, a near natural appearance that the above-mentioned cracked skin-like uneven surface is continuously formed is created. It will further improve.

In addition, the above effect is further enhanced by adding a means for coloring the uneven surface into a natural stone shape.

[0016]

FIG. 5 shows an embodiment of the present invention.
This will be described in detail with reference to FIGS. The Mashi block used for the construction of the retaining wall is used for the purpose of lining the slope of a river embankment, the slope of a reclaimed land, and the face of the road (slope) on both sides of the road.
It is a block based on.

As shown in FIG. 5, the intellectual block has a rectangular parallelepiped face body 1 forming a front wall for covering the various slopes, and a rear face of the wall protruding from the rear face of the face body 1. And a recessed portion 2 embedded in a backing material 9 that is cast into the backing material 9.

A decorative mortar layer 4 'whose surface is shaped like a broken stone-like uneven surface 5' is adhered to the front surface of the concrete-formed face body portion 1, so that there is a difference in the thickness of the decorative mortar layer 4 '. Two or more kinds of intellectual blocks are formed.

For example, as shown in FIG. 5, a first intermediate block A to which a mortar decorative layer 4a 'having a thickness t1 is adhered, a second intermediate block B to which a mortar decorative layer 4b' having a thickness t2 is adhered, Three kinds of blocks A, B, and 3 of the third block C to which the mortar decorative layer 4c 'of t3 is adhered.
An intermediate block unit made of C is formed.

Each of the mortar decorative layers 4a ', 4b', 4
c 'has cracked skin-like uneven surfaces 5a', 5b ', 5c', respectively, and the thickness between the decorative layers 4a ', 4b', 4c 'is t1.
The thickness is made different by the relationship of <t2 <t3.

On the other hand, the height of the main body block composed of the face body portion 1 and the holding portion 2, that is, the height t4 from the front surface 6 of the face body portion 1 to the rear surface of the holding portion 2 is made substantially the same and has the same shape. A large number of brick blocks are formed into concrete, and a mortar decorative layer set to the thickness t1 <t2 <t3 is adhered thereto to form a plurality of kinds, for example, three kinds of brick blocks.

Preferably, each of the uneven surfaces 5a ', 5b', 5c 'of the mortar decorative layers 4a', 4b ', 4c' attached to the above-mentioned blocks A, B, C have different uneven shapes from each other. The concavo-convex shape between the layers 4a ', 4b' and 4c 'is the same.

The mortar decorative layers 4a ', 4b', 4
The peripheral side surface of c 'is a flat inclined surface or vertical surface 10, and only the front surface of each decorative layer has an irregular shape.

As shown in FIG. 6, the mortar decorative layer is filled with mortar in a box-shaped form 11 having a bottom wall 11a and a side wall 11b rising from the periphery of the bottom wall. Press and adhere to the front of to mold. This formwork 11
The bottom wall 11a has an uneven surface forming mold portion, and the inner surface of the side wall 11b is flat.

The mortar decorative layers 4a ', 4b', 4
c 'can be colored or complex colored to create a more natural stone appearance. For this coloring, a pigment is applied to the inner surface of the bottom wall 11a of the mold frame 11, that is, the surface of the concave-convex surface forming mold portion, and is then immersed in the mortar surface layer portion in which the mold is embedded to form a colored layer. It does by doing.

FIG. 7 shows the mortar decorative layers 4a 'and 4a.
An example is shown in which cracked skin-like uneven surfaces 5a ', 5b', 5c 'are formed on the surface from the front surface to the peripheral side surface of b', 4c '.

In more detail, similarly to the above, an intermediate block main body in which the face body portion 1 and the holding portion 2 are integrally formed of concrete is prepared, and the thickness t1 <t2 <t3 is provided on the front surface of the face body portion 1.
And the surface extending between the front surface and the peripheral side surface is uneven surface 5
mortar decorative layers 4a ', 4a', 5b ', 5c'
b ', 4c' are glued to each other to form three types of blocks A, B,
Form C.

The mortar decorative layer 4 is provided on the front surface of the face body 1.
The mold 11 for molding a ', 4b', and 4c 'has a concave and convex surface forming mold portion continuous to the inner surface of the bottom wall 11a and the inner surface of the side wall 11b as shown in FIG. In this case, it is necessary to separate the side wall 11b so that it can be opened and closed as a separate member, or it can be detached independently.

As described above, the uneven surfaces 5a ', 5b' and 5c 'can be colored. According to the appearance observation results based on the in-situ experiments of the inventor, it is preferable that the difference in thickness between the mortar decorative layers 4a ', 4b', and 4c 'in each of the above examples is in a range of approximately 10 to 30 mm.

For example, when three kinds of intelligent blocks are formed, t1 is about 10 mm, t2 is about 20 mm, and t3 is about 30 mm, and a thickness difference of about 10 mm is set between them.

FIGS. 9 and 10 are a sectional view and a front view, respectively, of the retaining wall constructed by the above-described block unit. The intellectual blocks A, B, and C are used in combination, and each of them gathers together to form a retaining wall.

As described above, each of the blocks A, B, and C has the same shape of the main body portion composed of the face body portion 1 and the holding portion 2, and therefore has the same height t4, and each has the same condition. Is installed.

For example, each of the blocks A, B, and C is based on the front face 6 of the face body portion 1, and the face body portion 1 is adjacent to the front face portion 6 so that the front faces 6 are flush with each other, and the holding portion 2 is located in the backing material 9. Embed it in Thereby, each mortar decorative layer 4
a ', 4b', 4c 'inherent thickness difference t1 <t2 <t
Each of the decorative layers 4a ', 4b',
4c 'is adjacent, and this state appears in the entire retaining wall.

[0034]

FIG. 11A schematically shows only the external appearance of the wall of the retaining wall constructed by the above-described slender block unit,
FIG. 11B schematically shows only the appearance of the wall portion of the retaining wall constructed with the conventional block.
As shown in the figure, when the appearance of the retaining wall using the intellectual block unit according to the present invention is viewed at a different angle, a mortar decorative layer having a height difference (a split-stone uneven surface having a height difference).
Seemingly scattered and dense in the retaining wall,
The appearance looks like a pile of mountain folds.
This appearance is a marked difference from the flat appearance of the retaining wall of FIG. 11B.

As described above, the retaining wall constructed by the above-described block unit has a large number of uneven surfaces of the mortar decorative layer having a high degree of protrusion and a surface of the mortar decorative layer having a low degree of protrusion. Collectively, synergistically with the shading effect, the retaining wall as a whole exerts the effect of the split stone-like unevenness, fostering a near-natural landscape. Therefore, the artificial appearance of the retaining wall, which appears as a flat lattice pattern and looks flat, is wiped out.

In addition, the high and low uneven surfaces of the split stones are mixed to form a shadow (inverse) due to the height, and the appearance of the linear joints between each of the intellectual blocks is eliminated as much as possible. Improve landscape creation.

Further, by providing the above-mentioned cracked stone-like uneven surface on the surface extending from the front surface to the peripheral side surface of the mortar decorative layer, the mortar decorative layer of each block is adjacent to the mortar decorative layer with the peripheral surface uneven surface. In combination with the height difference, the lattice-shaped joint pattern formed by the adjoining rectangular parallelepiped face portions can be concealed as much as possible, and the cracked silk-like uneven surface is continuously formed. It further promotes natural appearance.

In addition, the above effect is further enhanced by adding a means for coloring the uneven surface into a natural stone shape.

[Brief description of the drawings]

FIG. 1 is a side view showing an example of a known block.

FIG. 2 is a side view showing another example of a conventional intelligent block.

FIG. 3 is a cross-sectional view of a main part of a retaining wall constructed by the block shown in FIG. 2;

FIG. 4 is a front view of a main part of a retaining wall in FIG. 3;

FIG. 5 is a side view of an intermediate block unit showing one embodiment of the present invention.

FIG. 6 is a side view showing a partly sectioned example of forming a mortar decorative layer for the block of FIG. 5;

FIG. 7 is a side view of a clue block unit showing another embodiment of the present invention.

FIG. 8 is a side view showing an example of forming a mortar decorative layer on the intermediate block in FIG. 7 with a partial cross section.

FIG. 9 is a cross-sectional view of a main part of a retaining wall constructed by the block unit shown in FIG. 7;

FIG. 10 is a front view of a main part of a retaining wall in FIG. 9;

FIG. 11A schematically shows only the appearance of the wall of the retaining wall constructed by the above-described chichi block unit, and FIG. 11B shows only the appearance of the wall of the retaining wall constructed by the conventional chichi block. It is the side view shown typically.

[Explanation of symbols]

1 face body part 2 reserve part 4 '(4a', 4b ', 4c') Mortar decorative layer 5 '(5a', 5b ', 5c') Cracked stone-like irregular surface t1, t2, t3 Thickness of mortar decorative layer

Continuation of the front page (56) References JP-A-5-230843 (JP, A) JP-A-6-80486 (JP, A) JP-A 48-30904 (JP, U) JP-A 4-45709 (JP) , U) Registered utility model 3032570 (JP, U) (58) Fields investigated (Int. Cl. ⁶ , DB name) E02D 29/02 303

Claims (3)

(57) [Claims] 1. A face body portion forming a wall portion of a retaining wall, and a retaining portion projecting from a rear surface of the face body portion and embedded in a backing material cast on the rear surface of the wall portion, are integrally formed of concrete. In the retaining wall structure constructed by the obtained intellectual block, there are provided two types of a mortar decorative layer having a front surface of the above-mentioned face body part and a mortar decorative layer having a surface of a split-stone shape, and having a difference in the thickness of the decorative mortar layer. It is constructed with the above-mentioned intellectual blocks, and the various intellectual blocks are mixed in the retaining wall and the respective mortar decorative layers are adjacent to each other with a height difference substantially corresponding to the thickness difference. Retaining wall structure. 2. The mortar decorative layer is characterized in that the surface extending from the front surface to the peripheral side surface forms a split-stone-like uneven surface, and the peripheral side surfaces forming the split-stone-like uneven surface are adjacent to each other. The retaining wall structure according to claim 1, wherein 3. The retaining wall structure according to claim 1, wherein the rough surface of the broken stone is colored.