JP4048234B2 - Retaining wall block that can be vegetated - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a block used for a retaining wall for covering and protecting an earthen wall of an open land such as a residential land or an open-cut area such as a road, and more particularly to a concrete block capable of planting a plant on the retaining wall. It is.
[0002]
[Prior art]
Conventionally, as a retaining wall to protect soil slopes such as construction sites, the usual method of stacking ordinary concrete blocks vertically and horizontally by reinforcing bars and mortar bonding on the foundation part where concrete is placed is adopted. It was.
In order to form a retaining wall by the above method, it must be lined with chestnut or concrete on the back side of the retaining wall, or a drain hole must be provided. The completed retaining wall is a scene of killing due to the loss of nature. Furthermore, the retaining wall changes unevenly due to changes in ground subsidence, etc., and cracks occur, and earth pressure acts intensively on the cracked part. As a result, there was a risk of unexpected occurrence.
[0003]
Therefore, as an improved block so as to eliminate the above disadvantages, as shown in Japanese Patent Publication No. 63-40892 and Japanese Patent Publication No. 6-11979, etc., the block portion stacked on the sloped earth slope is planted. Retaining wall blocks that can be planted are known.
As shown in FIG. 8, these blocks have side walls 12 provided with upper end surfaces 12 a lower than the rear wall 13 and concave portions 12 b lower than the rear wall at the lower end surfaces at both end portions of the front wall 11 inclined forward. Are recessed from the upper end of the front wall and connected continuously, and a rear wall 13 holding the soil between the rear ends of the side walls is connected, and the vegetation is planted in a box-shaped frame having a quadrilateral plane. The concrete is molded so that it can be filled with soil, and is formed into a vegetation retaining block A that can be vegetated, or a side wall 12 that is connected to both ends of the front wall 11 and a rear wall on the side wall. 13 is formed to form a substantially rectangular block, and an opening is provided in a part of the front wall, and a convex portion is provided at the upper end portion of the rear wall, and a concave portion is provided at the lower end portion to allow vegetation. A retaining wall block is formed.
[0004]
In order to build a retaining wall by stacking these blocks, the block A is held at a slightly narrower width than the lateral width on a sloped foundation 70 on which foundation work has been performed with concrete or the like, as shown in FIG. Then line up every other line and install the bottom. Next, the blocks must be separated and stacked so as to pass over the opposing side walls of the adjacent blocks arranged in the lower stage, and then stacked and fixed in a zigzag pattern in a checkered pattern on the sloped slope. .
Therefore, these retaining wall blocks are suitable for stacking only on the slope portion inclined from the structure, but have the disadvantage that they cannot be used to form a retaining wall by stacking on a vertical wall surface. .
[0005]
Therefore, it is a retaining wall block that eliminates the disadvantages described above and stacks vertically even on a vertical surface or a surface curved in the lateral direction, so that vegetation can be vegetated on the front of the block. As shown in FIG. 10, there is a block of the invention as described in Japanese Patent Application Laid-Open No. 7-233586. As shown in FIG. 10, this is a structure of a substantially rectangular parallelepiped rear wall 50 having a horizontal upper surface and a lower surface. Through holes 30 are provided on both sides for fixing with reinforcing bars and concrete, and a small step 40 is formed on the upper surface of the through hole, and a raised portion that engages with the step is formed on the lower surface of the through hole. It is the block B which formed and formed the bottomed recess 50 which throws in the soil for planting between the said right and left through-holes.
[0006]
Then, in order to construct a retaining wall by stacking the above blocks, as shown in FIG. 11, after performing foundation work with concrete or the like, the reinforcing bars fixed to the foundation 80 are passed through the through holes 30 of the block B. The retaining wall is formed by sequentially stacking from the base portion while being reinforced by being inserted into and reinforced while being fitted and fixed by the joining groove 60 between adjacent blocks.
However, the formation of retaining walls with such blocks is suitable for vertical walls, but vegetation on retaining walls formed by applying to sloped slopes is not possible due to its structure. It is impossible.
[0007]
And as for the above-mentioned block, between the soil accommodation recess in the block and the earth layer on the back of the block is blocked while the wall portions 13 and 20 and the bottom wall portion are then closed with concrete, There are no openings to allow water to flow and vent into the soil container in the block, and no natural water is supplied from the outside to the soil in the block. Otherwise, there was a risk of dying the plants.
Also, in places where heavy rains may cause a large amount of water to leak from the soil wall surface, there is no natural water permeability, so the retaining wall block should be placed on the back so that the retaining wall does not squeeze out and collapse due to water pressure. The concrete had to be reinforced so that it could withstand the water pressure by backfilling the concrete, and the construction cost was higher.
[0008]
[Problems to be solved by the invention]
The present invention is a civil engineering construction block that can be stacked in the vertical direction, in the inclined direction, and further in the horizontal direction, enabling vegetation in the block and improving the appearance of the retaining wall. Another object of the present invention is to provide a retaining wall block that is sufficient in strength, can be efficiently constructed, and has natural water permeability.
[0009]
[Means for Solving the Problems]
In the present invention, the block main body is formed in a substantially H shape with concrete, and reinforcing reinforcing bar insertion holes are formed in both ends of the H shape so as to penetrate vertically, respectively. An earth insertion port is provided in each of the inner portions so as to penetrate in the vertical direction, and further, reinforcing bar insertion holes are provided in the vertical direction near the inner side of the earth insertion port. An engaging convex part is formed in the upper end opening part, and an engaging concave part is formed in a taper shape in the lower end opening part, and a projecting piece for vegetation is formed on the opening end part of the soil inlet, and stacked. It forms a retaining wall block that is easy to vegetate.
[0010]
On the foundation block fixed by finishing with concrete or the like, the engaging wall irregularities are engaged with the retaining wall block so that the front surface has a checkered pattern, and the reinforcing bar insertion hole is used for reinforcement. After inserting the reinforcing bars and sequentially stacking them upward to form a retaining wall, put soil etc. into the soil inlet and fill the space for vegetation of the block to form a block retaining wall on which plants can be vegetated Constitute.
[0011]
[Action]
The H-shaped block of the present invention, which is the lowermost portion of the present invention, is fixed in a lateral direction on a basic block of a predetermined shape such as a fabric foundation, and the H-shaped portions at both ends of the second-stage H-shaped block So that the lower end concave portion of one end of the upper portion is engaged with the upper surface convex portion of the central portion of the lower block, and the lower end concave portion of the other end portion of the H-shaped portion is engaged with the upper surface convex portion of the central portion of the block adjacent to the lower step. The blocks are stacked and stacked, and reinforcing reinforcing bars are inserted into the reinforcing bar insertion holes, and a solidified material such as cement or mortar is filled and fixed in the insertion holes to form a block retaining wall.
Then, the soil that can be planted is introduced from the soil inlet, and the space formed between the H-shaped concave portions of the block is filled with the soil, and the vegetation is filled in the space. A possible area is formed, and vegetation and the like are vegetated in the vegetable area portion to form a greening block retaining wall.
[0012]
【Example】
The present invention will be described in detail below with reference to the drawings based on an optimum embodiment.
In the invention of the present application, concrete can be poured into a molding die and formed into a block body 1 having a substantially H shape as shown in FIGS. 1 to 3, and the block bodies can be stacked to form a self-supporting retaining wall. It is a thing.
FIG. 1 is a perspective view of the block body 1. When the H-shaped block is viewed from the front, the protruding pieces 41 projecting upward and downward are formed on the upper and lower ends of the block body at the portions that become the side wall surfaces. 42 is provided in the center portion of the protruding piece, and insertion holes 41a and 42a are formed through the reinforcing bars in the vertical direction, respectively, and the upper end opening edge of the insertion hole As shown in FIG. 3, the projections 41 b and 42 b that are tapered outward are suitable for stacking the block bodies , and the bottom opening is tapered inward as shown in FIG. 3. The engaging recesses 41c, 42c are formed symmetrically with respect to the center line portion that is formed and symmetrical .
[0013]
Further, on the inner side of the base portion where the protruding pieces 41 and 42 protruded from the left and right end portions of the H-shaped block body are raised, input ports 51 and 52 for introducing earth respectively penetrate the block body in the vertical direction. In addition , at the opening edge of the inlet, a protrusion piece lower than the H-shaped end protruding pieces 41 and 42 on both sides of the front (front surface) side and the opposite surface (back surface) side of the block 51a, 51b, 52a, and 52b are erected, and when the block bodies are stacked, an opening 9 that can be vegetated by introducing earth is formed.
In addition, two inner reinforcing bar insertion holes 61 and 62 pass through the reinforcing bar insertion holes 41a and 42a at the ends of the upper and lower blocks near the center of the block body inside the left and right insertion ports 51 and 52, respectively. In addition, the upper end openings of the inner reinforcing bar insertion holes 61 and 62 have outwardly tapered engaging convex portions 61a and 62a, and the lower end opening has an inwardly tapered shape. The engaging recesses 61b and 62b are formed on the self-supporting retaining wall block body 1 that facilitates stacking of the block bodies and that can be vegetated.
[0014]
Further, when the retaining wall is formed by stacking the block bodies of the present invention, as shown in FIG. 5, as the block member for forming the left end portion or the right end portion of the retaining wall , the above-described H An end block piece 2 having a shape in which the block body 1 of the mold is divided into two equal parts at the center portion is required.
That is, the end block piece 2 that forms the end of the retaining wall is provided with the earth inlet 5 at the inner base of the end protruding piece 4 in which the reinforcing bar insertion hole 42a is formed, and at the opposite end of the end protruding piece rebar insertion hole 6 is formed by providing the part, said engaging portion on the upper surface of the reinforcing bar insertion hole 42a, to form an engaging recess respectively on the lower surface, upper and lower H-shaped block body 1 The end block piece 2 is formed with protrusions 52a and 52b at the end of the earth charging port so that it can be fitted into the engagement portion formed in the reinforcing bar insertion hole.
The block body 1 of the present invention having the above-described structure is formed in a self-supporting type in which blocks stacked one above the other can be fitted to each other by four concave and convex engaging portions 41b, 42b, 61a, and 62a. Therefore, it is possible to carry out construction in a stacked manner on a vertical surface, an inclined surface, or a horizontal surface.
In the block body described above, the reinforcing bar insertion hole and the earth insertion port are described as having a rectangular shape, but the present invention is not limited to such a shape, and a round hole as necessary. Needless to say, it can be formed in other shapes, and the number of reinforcing bars can be selected as appropriate .
[0016]
In order to construct a block retaining wall by stacking the block bodies of the present invention vertically on a soil wall surface or other wall surface, the construction is performed as follows.
After excavating the ground surface appropriately and finishing the fabric foundation surface, the foundation block 3a is installed horizontally, and reinforcing bars 10 are vertically projected at a predetermined position and planted to form an H-shaped block. end and inside each rebar insertion holes 41a of, 42a, and allowed through each rebar 61 and 62, provided the block body 1 lower surface of the engaging recesses 41c, 42c, 61b, and 62b of the base block 3a the upper surface The first-stage block bodies 1 are sequentially joined in the lateral direction and stacked so as to engage with the engaging convex portions.
[0017]
In this way, when the first-stage block body 1 has been stacked, an end block having a shape in which the H-shaped block main body is divided into two equal parts at the center as shown in FIG. The reinforcing reinforcing bars 10 are inserted into the reinforcing bar insertion holes 6 and 42a of the piece 2, and the engaging concave portions at the lower end of the block piece are engaged with the engaging convex portions 41b and 61a on the upper surface of the first block. Then, the end surfaces are stacked so as to be aligned with the end surfaces of the first-stage H-shaped block body 1.
Then, when the end block pieces 2 are stacked, the H-type block main bodies 1 are stacked in the horizontal direction next to the end block pieces 2 in the same manner as described above, and the end block pieces 2 are reversed again at the final end. Align and end up with the end face of the first H block.
[0018]
By repeatedly stacking such operations, a vegetation opening 9 communicating with the earth charging ports 51 and 52 is formed between the H-shaped end pieces of the upper block and the lower block.
Then, when the required number of block bodies are stacked in the vertical and horizontal directions, concrete reinforcement or mortar is poured into each of the reinforcing bar insertion holes to completely embed the reinforcing bar insertion holes, and the earth input The soil suitable for the plant to be vegetated in the mouth is introduced to completely bury the earth input space.
When the work is completed in this manner, the upper end opening of the uppermost block body is closed with a predetermined upper lid member, and the construction work of the retaining wall is completed.
[0019]
In addition, when the block body of the present invention is used to build up a block retaining wall by building up on an inclined earth wall surface or to perform river bank embankment construction, it is constructed as follows.
After slightly excavating the ground surface of the construction site to finish it into a concrete cloth foundation surface, as shown in FIG. 7, the foundation block 3b formed so as to be inclined and stacked at a predetermined angle is fixed. At the same time, the reinforcing bars 10 are planted so as to protrude upward at predetermined positions, and the reinforcing bars 10 are inserted into the reinforcing bar insertion holes of the H-type block bodies 1 and 2 to be stacked, and in the engaging recesses on the lower surface of the block body. Engage the engaging projections of the base block, and stack the first stage so that the back surface of each block body is in contact with the earth wall, and the second and subsequent stages are sequentially performed according to the same procedure as the above-described vertical surface stacking work Just stack up.
[0020]
In the retaining wall constructed by the block body of the present invention, the coupling between the upper and lower blocks and the left and right blocks is accurately connected by the engagement of the engaging convex portion and the concave portion, and is more robust by the reinforcing steel bars and concrete. It is fixed.
Furthermore, the earth input path is formed continuously from the uppermost stage to the lowermost stage of the block, and the back side of the opening for vegetation is formed so as to be in contact with and in contact with the soil wall surface, so that the water permeability is improved. It is comprised so that it may have.
Therefore, in normal times, water is naturally supplied to the vegetation area from the upper and lower surfaces of the soil input channel and the soil wall surface, so there is no risk of drying and the plants withering. In heavy rain, water leakage from the soil wall surface will not occur. Since the water is drained from many vegetation openings through the earth input channel, there is no risk of the retaining wall collapsing due to water pressure.
[0021]
The block body 1 described above has protrusions 51a, 51b, 52a, 52b provided at each opening end of the earth charging port in order to form an opening for vegetation. Although it was provided on both sides of the back side, the back side where the block body 1 is in direct contact with the earth wall must be able to withstand large forces such as water pressure and earth pressure. It is enough to withstand wind and rain in an open state.
[0022]
Accordingly, the protrusions 51b and 52b of the block body 1 shown in FIG. 1 are omitted as necessary, and only the protrusions 51a and 52a at the opening end portion on the back side of the retaining wall are provided, as shown in FIG. It is also possible to use it by forming it in a simple block body 1.
And the retaining wall formed by piling up the block bodies 1 as shown in FIG. 4 is formed so that the vegetation area is wide open, and more or larger vegetation can be vegetated. There is no fear that the earth will be pushed out.
In addition, the block body of the present invention adjusts the opening area of the vegetation opening of the block retaining wall by forming the block with the height of the projecting piece provided at the opening end of the earth inlet being changed. Is possible.
[0023]
Since the block of the present invention can be constructed horizontally, it can also be used as a rooting member for a river bed in a river, in addition to a retaining wall for a bank or a cliff.
When laying as a rooting material on the bottom of a river, filling the soil input channel with soil or pebbles will inhabit various aquatic insects and microorganisms, and aquatic plants can be vegetated, purifying water quality and aesthetics. Can be useful.
Moreover, if the earth input path is left without being filled with soil, it can be effectively used not only for the preservation of the riverbed but also as a dwelling place or hiding place for fish and other aquatic animals.
[0024]
【The invention's effect】
In the present invention, the shape of the block is a substantially H-shape capable of self-supporting, and the engaging recesses and protrusions are provided in the openings of the reinforcing bar insertion holes provided vertically through both ends and the center of the block. Therefore, the stacking operation is very easy and can be stacked in the vertical direction, the tilt direction, and the horizontal direction.
In addition, the vegetation area formed by opening partly in the middle of the earth charging path formed by penetrating in the vertical direction between the reinforcing bar insertion holes provided at both ends and the center of the H-shaped block Since the front and rear surfaces of the vegetation are open, there is no risk that the cultivation soil will dry out and the plant will wither because natural water flow is performed, and even if water leaks from the formation due to heavy rain, it will drain naturally. So there is no fear that the retaining wall will collapse.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a block body according to a first embodiment of the present invention.
2 is a cross section in the XX direction of the block body of the present invention shown in FIG.
3 is a longitudinal cross-section in the YY direction of the block body of the present invention shown in FIG.
FIG. 4 is a perspective view showing a block body according to a second embodiment of the present invention.
FIG. 5 is a perspective view showing an end block body in which the block bodies of the first embodiment of the present invention are used for stacking.
FIG. 6 is a perspective view showing a vertical block retaining wall in which the block bodies of the first embodiment of the present invention are stacked.
FIG. 7 is a perspective view showing an inclined block retaining wall on which the block bodies of the first embodiment of the present invention are stacked.
FIG. 8 is a perspective view showing a block body of a prior example of the present invention.
9 is a cross-sectional view showing a retaining wall in which the block bodies shown in FIG. 8 are stacked.
FIG. 10 is a perspective view showing another prior art block body of the present invention.
11 is a cross-sectional view showing a retaining wall in which the block bodies shown in FIG. 10 are stacked.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Block body 2 End block bodies 3a, 3b used for stacking of the present invention Basic block bodies 4, 41, 42 End pieces 41a, 42a of H-type blocks Reinforcing bar insertion holes 41b, 42b Engaging protrusions 41c, 42c Engaging recess 5, 51, 52 Earth input path 51a, 51b, 52a, 52b Protrusion piece 6, 61, 62 Reinforcing bar insertion hole 61a, 62a Engaging protrusion 61b, 62b Engaging recess 9 Opening 10 Reinforcing bar 11 Block front wall 12 Block side wall 13 Block rear wall 20 Block base body 30 Through hole 40 Stepped portion 50 Earth accommodating recess 60 Joint groove 70, 80 Foundation

Claims (5)

The concrete block body formed in the schematic H-type shape projecting portions to form the both end portions of the H-shaped when viewed from the front, is formed to penetrate the respective rebar insertion hole for reinforcement in the vertical direction, the projection of the end portions with the inside of the base piece is provided through the respective earth inlet vertically, inner reinforcing bar insertion hole for reinforcement, respectively, as the inside of the earth inlet sandwich a portion that becomes the center of the symmetry line Are provided in a vertically extending manner, and projecting pieces that are lower than the projecting pieces of the H-shaped end portions are erected on the opening edge portions of the earth inlet on the front side and back side of the block. A retaining wall block body capable of vegetation characterized by being formed to be symmetrical. The projecting piece forming the H-shaped ends of the concrete block body and the upper end opening of the inner rebar insertion hole provided near the center part have an engaging convex part, and the lower end opening has an engaging concave part. It is formed in a taper shape so that the engagement recesses at the lower end opening of the projecting pieces at both ends can be fitted and stacked on the engagement protrusions at the upper end opening of the inner rebar insertion hole near the center. The retaining wall block body capable of vegetation according to claim 1. 3. The retaining wall block body capable of vegetation according to claim 1, wherein the projecting piece at the opening edge portion of the earth filling port is provided only on the back surface side of the block body.   The vegetation according to any one of claims 1 to 3, wherein the block body is formed into an end block piece having a shape that is divided into two equal parts at a central symmetry line. Retaining wall block. 5. The retaining wall block body capable of vegetation according to any one of claims 1 to 4, wherein the reinforcing bar insertion hole and the earth insertion port are formed in a rectangular shape.

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