JP4027028B2 - Slope block for planting - Google Patents

Description

[0001]
[Technical field to which the invention belongs]
This invention relates to the planting slope block which has a main-body part in which a side cross section is a substantially rectangular shape and a front side surface is substantially flat especially among planting slope blocks.
[0002]
[Prior art]
Traditionally, slope blocks have been used to prevent slope collapse and river bank protection. This slope block is very effective for the intended purpose, but it is not necessarily good from the viewpoint of environmental conservation and nature conservation, such as preventing the generation of plants and simplifying the environment.
[0003]
Therefore, as a so-called planting slope block having a planting function in the slope block, for example, one disclosed in JP-A-8-302715 (hereinafter referred to as the block of Conventional Example 1) has been proposed.
[0004]
As shown in FIGS. 9 to 11, in this state after the block is installed, the substantially horizontal bottom wall 32 and the substantially semicircular arc substantially vertical front wall portion 31 are placed forward of the front surface of the block main body 30. A projecting portion 34 is formed in the main body 30 and a planting space 39 is formed by the space formed by the projecting bottom wall 32 and the front wall portion 31 and the recessed portion 34. In addition, a convex strip 35 extending in the vertical direction is formed on one of the left and right side wall portions 33, 33 of the block, and a concave groove 36 extending in the vertical direction is formed on the other side. In the upper part of the groove 36, semi-arc-shaped engaging recesses 37, 37 are formed, and in the center of the bottom surface of the bottom wall 32, one engaging protrusion 38 protruding outward is formed. .
[0005]
When the blocks are arranged in the left-right direction during construction of the blocks, the protruding ridges 35 and the recessed grooves 36 formed in the adjacent block side wall portions 33 and 33 are engaged with each other, and above the protruding ridges 35 and the recessed grooves 36. The formed semicircular arc engaging recesses 37 are combined to form one circular engaging recess 37.
[0006]
Next, when the upper block is stacked, an engagement convex portion 38 formed at the center of the bottom surface of the bottom wall 32 is fitted into the circular engagement concave portion 37 so that the upper and lower blocks are shifted by a half. Form a slope block for planting.
[0007]
However, the block of the conventional example 1 has the following drawbacks. That is, the block of the conventional example 1 is formed by a substantially horizontal bottom wall 32 that protrudes forward in the planting space 39 in front of the block, and a front wall portion 31 that is substantially semicircular and substantially vertical. Therefore, the space for planting 39 can be made large, and many plants can be planted, which is satisfactory from the viewpoint of environmental conservation and nature protection, but blocks only the bottom wall 32 and the front wall portion 31 protruding from the front of the slope block. This increases the amount of concrete for manufacturing and increases the manufacturing cost.
[0008]
In the block of the conventional example 1, the circular engaging concave portions 37 of the left and right side wall portions 33, 33 of the block and the engaging convex portion 38 at the center of the bottom surface of the bottom wall 32 are shifted by 1/2 in the upper and lower stages. One of the features is the engaging means to be fitted, so you have to use planting blocks for all blocks during construction, and only a part of all slope blocks to be installed are planting blocks In addition, it is not possible to deal with such cases, and it cannot be arranged in the same row, so that flexibility is inferior.
[0009]
By the way, the slope block is often used for revetment of rivers, but the slope block for revetment must be able to cope with river flooding, at least hinder the flow of water, In general, the surface is formed to be substantially flat so that the driftwood or the like does not break or get caught by the driftwood.
[0010]
However, river floods occur at least several times a year, and most of them are in a dry state where the concrete block on the surface of the revetment is exposed, and again for revetment. However, there is a strong demand for slope blocks for planting.
[0011]
Therefore, when the block of the conventional example 1 is adopted as the slope block for revetment, a planting space 39 is formed by the bottom wall 32 and the front wall portion 31 that protrude greatly in front of the main body portion 30. Therefore, there is a possibility that the flow of water will be hindered during a flood, or driftwood will hit and break, and sometimes driftwood will be caught and cause further secondary damage. It is difficult to use as a product.
[0012]
Furthermore, as is clear from the plan view of FIG. 11, the block of the conventional example 1 is exposed to the outside almost the entire surface of the planting space 39 after the block is installed. Or, although there is an advantage that larger plants can be planted, the large ground surface that is directly exposed to the outside means that the area heated by the sun's heat is large, and the amount of moisture evaporation increases accordingly. Most of the water in the planting slope block depends on rainwater, and if the sun continues, the water in the branch will evaporate quickly, which is fatal to the plant.
[0013]
On the other hand, for example, a planting slope block as shown in FIGS. 12 to 14 (hereinafter referred to as a block of Conventional Example 2) is considered.
[0014]
That is, when the block of the conventional example 2 is made to correspond to the configuration of the present invention, the body section 40 having a substantially rectangular side cross section and the front surface 41 substantially flat, and on the front surface 41 upward from the lower end thereof. A substantially flat front wall portion 42 that protrudes, and substantially triangular left and right side wall portions 43, 43 formed between left and right end portions of the front wall portion 42 and the front surface 41 of the main body portion 40. The front side surface 41, the front wall portion 42, and the left and right side wall portions 43, 43 of the main body portion 40 form a planting space 44, and one engagement with each of the center portions of the upper and lower surfaces 45, 46 of the main body portion 40. This is a planting slope block in which convex portions 47 or engaging concave portions 48 are formed.
[0015]
And in such a planting slope block, it is necessary to adopt the planting for all slope blocks at the time of construction due to high cost by projecting forward, which is a disadvantage of the conventional block 1 The inconvenience that cannot be placed in the same row, and the difficulty of using it for revetment are all cleared.
[0016]
However, in the block of the conventional example 2, one engaging convex portion 47 or engaging concave portion 48 is formed at the center of the upper and lower surfaces 45 and 46 of the main body 40, respectively. One of the features is that these blocks (all of them may be planting blocks or part of them may be planting blocks as shown in FIG. 14) are stacked up and down by engaging means. Therefore, the main body portion 40 is not formed with a concave portion as a planting space like the block of the conventional example 1, and it is not considered at all to form a concave portion at that location. is there.
[0017]
In the first place, plants need only have a space on the ground surface where at least stems, trunks, etc. can grow, but in the ground the roots need a sufficient space to absorb moisture, and are a planting block. As long as the conditions are not satisfied in use, large or many plants cannot be planted over a long period of time.
[0018]
From this point of view, when viewing the block of Conventional Example 2, the space 44 for planting has a vertex formed by the front surface 41 of the main body 40, the front wall 42, and the left and right side walls 43, 43. It is only a space with a triangular cross-section, and the ground surface area is not a problem, but the volume in the ground is not sufficient, and the shape is also located on the lower side because of the nature of the plant roots extending downwards. This is not preferable because it concentrates on the apex portion of the triangle and causes rooting and the like, and causes problems such as inability to absorb sufficient moisture. That is, the block of Conventional Example 2 has a major drawback that the amount and shape of the space for planting are not sufficient.
[0019]
[Problems to be solved by the invention]
The invention of the present application solves the above-mentioned problems of the prior arts at the same time, that is, reduces the amount of evaporation of moisture, secures a sufficient planting space, and has compatibility in arrangement. Furthermore, it aims at providing the slope block for planting suitable also as a block for revetment.
[0020]
[Means for Solving the Problems]
In order to achieve the above object, the present invention adopts the following configuration.
[0021]
In the invention according to claim 1, a main body portion having a substantially rectangular side cross section and a substantially flat front surface, a substantially flat front wall portion projecting upward from a lower end portion on the front surface, A substantially triangular left and right side wall portion formed between the left and right end portions of the front wall portion and the front side surface of the main body portion, and two upper and lower surfaces spaced apart from each other by a predetermined distance on the left and right sides of the main body portion. An engaging convex part or engaging concave part arranged to form a pair, and a concave part that is located in the vicinity of the central part of the main body part and is formed to open to the upper surface and the front surface thereof A space for planting is formed by the space formed by the front side surface, the front wall portion and the left and right side wall portions of the main body portion, and the recessed portion. , The engaging convex part or the engaging concave part has a configuration in which the front side surface 7a is substantially vertical and the rear side surface 7b is inclined rearward after the block is installed.
[0022]
And by this structure, it is possible to secure a sufficient space for planting without projecting the front wall portion forward, and it can be applied only to a part of all the slope blocks at the time of construction on an inclined land. Further, the arrangement in the same row or the arrangement shifted by ½ is also possible.
[0023]
In addition, even if the planting slope block is used for revetment, the front wall portion does not protrude forward from the front surface of the main body portion and has a flat shape. Even if water resistance or the like occurs, the original function as the slope protection block is not impaired because it is slightly smaller than the block of the conventional example 1.
[0024]
Furthermore, when this planting slope block is stacked up and down, the front side surface of the main body is substantially flat, so the upper surface opening of the recessed part will be covered by the bottom surface of the block placed on the upper part, and on the ground Although the exposed ground surface area is reduced, the volume of the planting space in the ground can be increased, and the shape of the ground surface can be made wider, the water retention capacity is increased, and sufficient moisture can be obtained without causing rooting. And the like, so that the growth of the plant is promoted and the sun light does not directly hit the concave portion, so that the evaporation of water is reduced accordingly.
Furthermore, When the upper block is installed on the upper surface of the block, the upper block is self-supporting without being displaced backward by simply dropping the engaging concave portion on the lower surface of the upper block into the engaging convex portion on the upper surface of the lower block.
[0025]
In the invention which concerns on Claim 2, the structure which provided the engaging convex part thru | or the engaging recessed part in the position of about 1/4 from the right-and-left side edge part of a main-body part. With this configuration, when the slope blocks are stacked, it is possible to arrange in the same row and to shift by 1/2.
[0027]
Claim 3 In the invention which concerns, the structure which shall have the bottomed surface of the planting space substantially the same depth. With this configuration, the depth of the planting space can be formed as deep as possible, the planting space can be widely taken, and the bottom surface is bottomed, so that soil and water are discharged from the planting space. The water is retained for a long time without doing so.
[0028]
Claim 4 In the invention which concerns, the structure which made the outer periphery of the left-right side wall part into the substantially circular arc shape. And with this configuration, when a person sees the planting slope block, the corners are rounded, giving a soft feeling, and for use as a revetment, and for all the slope blocks to be installed In the case of providing a part for planting at a predetermined interval in part, the water resistance is further reduced in combination with the flat shape of the front wall, and the risk of catching driftwood, etc. is reduced. Achieve the original function for revetment more reliably.
[0029]
Claim 5 In the invention which concerns, the structure which provided the water retention material in the space for planting. With this configuration, even if the planting space has no bottom surface (in that case, there is a net or the like at the bottom of the space to prevent discharge of soil, etc.). It is possible to retain the rainwater and the like for a long period of time.
[0030]
Claim 6 In the invention which concerns, the structure which provided the cover in the upper surface opening part of the recessed part. And with this configuration, even if the upper and lower blocks are horizontally shifted by ½ using a planting slope block having side recesses, the concrete poured between adjacent side recesses is recessed in the lower block. It will not flow into the part.
[0031]
DETAILED DESCRIPTION OF THE INVENTION
Example 1
1 to 3 show an embodiment of the present invention. FIG. 1 is a plan view, FIG. 2 is a side view, and FIG. 3 is a side view after construction of an inclined surface.
[0032]
As shown in FIG. 2, the main body 1 has a substantially rectangular shape close to a parallelogram, the front surface 2 of the front surface thereof is substantially flat, and the side surface thereof is greatly cut away. The side recess 13 and the rear surface have left and right flanges 12 and 12 protruding sideways.
[0033]
Further, on the upper surface 5 of the main body portion, approximately the same pyramid-shaped engaging convex portions 7 and 7 as shown in FIGS. At the same time, on the lower surface 6 of the main body portion, slightly larger engaging concave portions 8 and 8 having the same shape as the engaging convex portions 7 and 7 are drilled on the lower surface of the engaging convex portions 7 and 7.
[0034]
Therefore, when installing the upper block above the lower block, when the block is installed, the upper block can be placed in the same row as the lower block. Since the two engaging recesses 8 and 8 formed on the lower surface 6 of the main body portion of one block placed on the upper stage can be engaged with the engaging protrusions 7 and 7 of each block, It is also possible to install them shifted by half each.
[0035]
Further, the engaging projections 7 and 7 are formed so that the front side surface 7a is substantially vertical and the rear side surface 7b is inclined rearward after the block is installed, and the upper block is formed on the upper surface of the block. When installing, the upper block can stand on its own without shifting backward by simply dropping the engagement recess 8 on the lower surface of the upper block into the engagement protrusion 7 on the upper surface of the lower block.
[0036]
That is, the upper block has a center of gravity behind the lower block and tends to shift rearward, but the substantially vertical front side surface 7a of the engagement convex portion 7 of the lower block has an engagement with the engagement concave portion 8 of the upper block. Since it engages with a substantially vertical front side surface, simply placing the upper block prevents the upper block from moving rearward, eliminating the need for a separate support for self-supporting and easily building a predetermined gradient. it can.
[0037]
The engaging projections 7 and the engaging recesses 8 may be mounted upside down, and when the upper block is arranged on the lower block, the invention according to claims 1 and 2. Then, any shape may be used as long as the upper block can be temporarily fixed.
[0038]
On the other hand, the front surface 2 of the main body 1 is integrally formed with a substantially flat front wall 3 projecting upward from the lower end thereof, and the front wall 3 and the front side of the main body 1. Between the left and right end portions of the surface 2, substantially triangular left and right side wall portions 4 and 4 are integrally formed, and the front side surface 2, the front wall portion 3, and the left and right side wall portions 4 and 4 are three members. A front side space K1 for planting having a substantially triangular cross section is formed.
[0039]
Further, the central portion of the main body portion 1 is opened to the front surface 2 and the main body upper surface 5 and is dug down to the same depth as the deepest portion of the front space K1 with substantially the same width in the vertical direction. A recessed portion 9 is formed as the rear space K2, and the front space K1 and the rear space K2 form a whole planting space.
[0040]
It should be noted that the shapes of the spaces K1 and K2 are not limited to the shapes shown and described, and their respective depths are not necessarily the same.
[0041]
Next, 14 and 15 are water holes for taking rainwater into the planting spaces K1 and K2, and the two water holes 14 and 14 provided on both sides of the main body 1 are the above-mentioned. The water passage hole 15 provided in the central portion of the front space K1 communicates with the rear space K2, but the water passage holes 14 and 14 on both sides or the central water passage 15 only. There may be.
[0042]
In addition, water retaining substances 11 and 11 capable of retaining water are provided in the front space K1 and the rear space K2. The water-retaining substances 11 and 11 may be any water-absorbing polymer that is currently widely used as sanitary napkins or disposable diapers, for example, and the water-retaining substances 11 and 11 are previously placed under the soil. In this way, it is possible to retain the introduced water such as rain for a long period of time, and even if the sunshine continues for a while, the risk of dying of the plant is reduced.
[0043]
The outline of the construction of the planting slope block according to the present invention will be described with reference to FIG. 3. First, the slope 18 for laying the block is flattened to some extent, and the back for backfill is provided thereon. Lay quarry 16
[0044]
Next, the base 20 is installed on the flat part below the slope 18, and the first block is placed side by side on the top of the base 20, and then between the block and the back quarry 16 and further adjacent blocks. Between the side recesses 13 and 13 formed between them, the back concrete 17 and the back concrete 17a for back and back use are poured and hardened. By doing so, the block and the concrete are more strongly coupled by the flange 12 of the main body 1. Reference numeral 19 denotes a water conduit, one of which communicates with the slope 18 and the other communicates with the water holes 14 and 15 formed in the main body 1.
[0045]
When the first stage block is arranged, the second stage block is arranged on the upper stage, and the two engagement projections 7 and 7 of the lower stage block are formed on the main body lower surface 6 of the upper stage block. The joint recesses 8 and 8 are placed so as to engage with each other.
[0046]
Thereafter, the back concrete 17 and the trunk concrete 17a are poured and hardened in the same manner as the first stage to complete the second stage. All the blocks are arranged by repeating the procedure. In addition, although the thing of FIG. 3 showed all the blocks as a thing for planting, it cannot be overemphasized that only one part may be sufficient.
[0047]
In addition, the filling time for filling the planting space or planting the plant may be at the time of block construction, but at the time of block construction due to the ordering, planting time or maintenance, etc. Even if it is not possible, the concrete casted on both sides of the block is integrated vertically and horizontally, so it is possible to skip the above-mentioned filling work without interrupting the block work and continue the filling work after building the block. It is.
[0048]
(Example 2)
FIG. 4 is a plan view of another embodiment. The shape of the side wall portion is different from that in the first embodiment, and the other portions are the same as those in the first embodiment.
[0049]
That is, the side wall portion 10 has an arc shape. By making the arc shape like this, when a person sees the planting slope block, the corners are rounded so that the entire surface of the block looks smooth and gives a soft feeling, and for revetment In the case where the planting part is provided for a part of all slope blocks to be installed, the resistance of water is further reduced in combination with the flat shape of the front wall 3. The risk of catching driftwood is reduced.
[0050]
(Example 3)
By the way, although the slope block of this invention was demonstrated as what has the side surface recessed part 13 in Example 1 (it is not necessarily required), it is a lower stage at the time of block construction using such a slope face block for planting. In the case where the upper block is shifted by a half horizontally above the other block, when the intruded concrete 17a is poured between the adjacent side surface recesses 13, 13, a part of the intruded concrete 17a becomes the recessed portion 9 of the lower block. This is to solve the problem.
[0051]
5 to 8 show an embodiment for that purpose, and the feature thereof is that a lid and a locking portion of the lid are provided in the upper surface opening portion of the recessed portion 9, and the others are the same as in the first embodiment.
[0052]
That is, FIG. 5 shows a plan view, and the locking portions 21 for locking the lid 23 are formed on the three upper side portions 21 a, 21 a, 21 b that form the upper surface opening of the recessed portion 9. . As shown in FIG. 7, the locking portion 21 has a stepped shape, and a lid 23 is placed on the stepped locking portion 21 to close the upper surface opening of the recessed portion 9.
[0053]
The lid 23 is made of a flat plate such as concrete or iron plate, and is set to be substantially flush with the upper surface 5 of the main body when the upper opening of the recessed portion 9 is closed.
[0054]
FIG. 8 shows the locking portion 22 having a tapered shape. In this case, the portion of the lid 23 that is in contact with the tapered locking portion 22 is also tapered, and can be closed with such a shape. Even when the lid is closed, the lid 23 slides down on the locking portion 22 with its weight even if the lid 23 is not placed on the locking portion 22 and can be easily placed at a predetermined position.
[0055]
In addition, although the lid | cover separate from a block main-body part was demonstrated as FIG. 5 thru | or FIG. 8, the lid | cover which closes an upper surface opening part may be integrally formed at the time of a planting slope block formation, In that case Therefore, the locking portions 21 and 22 are not necessary.
[0056]
The invention of the present application is not limited to the configuration of the above embodiment, and it is needless to say that the design can be changed as appropriate without departing from the gist of the invention.
[0057]
【The invention's effect】
In the invention according to claim 1, a main body portion having a substantially rectangular side cross section and a substantially flat front surface, a substantially flat front wall portion projecting upward from a lower end portion on the front surface, A substantially triangular left and right side wall portion formed between the left and right end portions of the front wall portion and the front side surface of the main body portion, and two upper and lower surfaces spaced apart from each other by a predetermined distance on the left and right sides of the main body portion. An engaging convex part or engaging concave part arranged to form a pair, and a concave part that is located in the vicinity of the central part of the main body part and is formed to open to the upper surface and the front surface thereof A space for planting is formed by the space formed by the front side surface, the front wall portion and the left and right side wall portions of the main body portion, and the recessed portion. , The engagement convex portion or the engagement concave portion is formed so that the front side surface 7a is substantially vertical and the rear side surface 7b is inclined rearward after the block is installed, so that the protruding wall portion on the front side surface of the stacked body portion is not much. Since a sufficient space for planting can be ensured without projecting to the front side, the amount of concrete for block production can be reduced, and the production cost can be reduced.
[0058]
In addition, the planting slope block can be applied to only a part of all the slope blocks during construction on an inclined land, and further, it is possible to arrange in the same row or shift by 1/2. , Various slope blocks can be combined to increase flexibility.
[0059]
Furthermore, even if the planting slope block is used for revetment, the front wall of the overhanging wall has a flat shape and does not hinder the flow of water or the like, thereby impairing the original function for revetment. Therefore, the planting block can be installed without worrying about its installation location.
[0060]
Furthermore, when this planting slope block is stacked up and down, the front surface of the main body is substantially flat, so the upper opening of the recessed portion will be covered by the bottom surface of the block placed on the top, Although the exposed surface area of the ground is reduced, the volume of the planting space in the ground can be increased, and the shape of the bottom surface can be made wider, so that the water retention capacity is increased and sufficient without causing rooting. It can absorb moisture, etc., and can promote the growth of plants. Sunlight is not directly applied to the recesses, and the evaporation of water is reduced accordingly. Can be reduced.
Furthermore, By simply dropping the engaging recess 8 on the lower surface of the upper block into the engaging convex portion 7 on the upper surface of the lower block, the upper block can be made independent without being displaced backwards. The gradient can be built and the manufacturing cost can be reduced.
[0061]
In the invention according to claim 2, when slope blocks are stacked up and down, the arrangement in the same row and the arrangement shifted by ½ are possible, so that flexibility during construction can be improved.
[0063]
Claim 3 In the invention according to the above, by making the planting space a bottom surface having substantially the same depth, the depth of the planting space can be formed as deep as possible at the same time, and the planting space can be widely taken, Since both bottoms are bottomed, soil and water are not discharged from the planting space, it is possible to give favorable conditions to the plant, it can maintain functions for planting for a long period of time, environmental conservation and nature Can greatly contribute to protection.
[0064]
Claim 4 In the invention according to the above, by making the outer circumferences of the left and right side walls substantially arc-shaped, when a person sees the block, the corners are rounded to give a soft feeling and soften the feeling Can do.
[0065]
In addition, when the slope for planting is used for revetment, and the part for all the slope blocks to be installed is provided for planting at predetermined intervals, the overhanging wall portion In combination with the flat shape of the front wall, the resistance of water is reduced, and driftwood and the like are less likely to be caught. Secondary disasters such as levee breaks caused by catching etc. can be more reliably prevented.
[0066]
Claim 5 In the invention according to the above, by providing a water-retaining substance in the planting space, water can be accumulated in the planting space for a long period of time, and even if it is in hot weather, water evaporation is minimized. Therefore, favorable conditions can be given to the plant, the function for planting can be maintained for a long period of time, and it can greatly contribute to environmental conservation and nature conservation.
[0067]
Claim 6 In the invention according to the above, even if the upper and lower blocks are horizontally shifted by a half by using a planting slope block having side recesses by providing a lid on the upper surface opening of the recess, Since the concrete poured between the matching side surface recesses does not flow into the recessed portion of the lower block, a plurality of slope blocks can be arranged.
[0068]
Further, by integrally forming the lid at the time of forming the slope block, it is not necessary to provide the lid and the locking portion, and the cost can be reduced.
[Brief description of the drawings]
FIG. 1 is a plan view of a planting slope block according to the present invention.
FIG. 2 is a side view of a planting slope block according to the present invention.
FIG. 3 is a side view after construction of a planting slope block according to the present invention.
FIG. 4 is a plan view of another embodiment of a planting slope block according to the present invention.
FIG. 5 is a plan view of still another embodiment of a planting slope block according to the present invention.
[Fig. 6] Fig. 6 is a plan view showing still another embodiment of the planting slope block of the present invention when closed.
FIG. 7 is a cross-sectional view taken along line AA in FIG.
8 is another embodiment of the cross-sectional view taken along the line AA of FIG.
FIG. 9 is a plan view of a conventional planting slope block.
FIG. 10 is a side view of a conventional planting slope block.
FIG. 11 is a plan view after construction of a planting slope block according to a conventional example.
FIG. 12 is a plan view of another planting slope block in the conventional example.
FIG. 13 is a side view of another planting slope block according to a conventional example.
FIG. 14 is a side view after construction of another planting slope block for a conventional example.
[Explanation of symbols]
1 Body
2 Front side surface
3 Front wall
4 Side wall
5 Main body top surface
6 Lower surface of main body
7 engaging projection
8 Engaging recess
9 Recess
10 Arc-shaped side wall
11 Water retention substances
12 Flange
13 Side recess
14 Side water vent
15 Central water vent
16 Back quarry
17 Backed concrete
17a lining concrete
18 Slope
20 foundation stand
21 Stepped locking part
22 Tapered locking part
23 Lid
K1 front space
K2 rear space

Claims (6)

A main body having a substantially rectangular side section and a substantially flat front surface;
A substantially flat front wall portion projecting upward from the lower end portion on the front surface;
A substantially triangular left and right side wall portion formed between left and right end portions of the front wall portion and the front surface of the main body portion;
An engagement convex portion or an engagement concave portion disposed so as to be paired on the upper and lower surfaces of each of the upper and lower surfaces of the main body portion with a predetermined distance left and right,
It is located in the vicinity of the central portion of the main body portion, and has a concave portion formed to open to the upper surface and the front surface thereof,
A space formed by the front surface of the main body, the front wall, and the left and right side walls;
Form a space for planting with the recessed portion ,
The engaging convex portion or the engaging concave portion is a planting slope block characterized in that the front side surface 7a is substantially vertical and the rear side surface 7b is inclined rearward after the block is installed.   The planting slope according to claim 1, wherein the engaging convex part or the engaging concave part is provided at a position substantially 1/4 from the left and right end parts of the main body part. The planting slope block according to claim 1 or 2 , wherein the planting space has a bottom surface having substantially the same depth. The planting slope according to any one of claims 1 to 3, wherein the left and right side walls have a substantially arcuate outer periphery. The planting slope block according to any one of claims 1 to 4, wherein a water retention substance is provided in the planting space. The planting slope block according to any one of claims 1 to 5, wherein a lid is provided on an upper surface opening of the recessed portion.

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