JP3639980B2 - Retaining wall block - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a retaining wall block comprising a fixing wall and a retaining wall, and more particularly to a retaining wall block capable of smoothly guiding underground water and surface water inside the retaining wall to the outside of the retaining wall. .
[0002]
Many roads can be found on national roads, prefectural roads, and other main roads, but road A where the road surface is higher than the surrounding ground is often seen by filling or cutting. And the retaining wall block 910,920,930,940 for earth retaining as shown in FIGS. 10-13 is used for the road A by which embankment or cutting was carried out in this way. These retaining wall blocks 910, 920, 930, and 940 are constituted by earth retaining walls 911, 921, 931, and 941, and fixing walls 912, 922, 932, and 942, respectively.
[0003]
[Problems to be solved by the invention]
Here, FIG. 21 is a diagram showing an installation example of the retaining wall block 910 of the prior art. In the case of the installation example shown in FIG. 21, a drainage groove B1 is formed at the end of the roadway A1. For this reason, when it rains on the road A, the surface water collected on the road A1 is drained through the drainage groove B1. On the other hand, the surface water collected on the sidewalk A2 loses its escape, reaches the installation location of the retaining wall block 910, and is drained toward the outside of the road A (retaining wall block 910).
[0004]
However, there is a problem that the surface water drained toward the outside of the retaining wall block 910 jumps out in a horizontal direction. For this reason, the drained surface water does not fall into the drainage groove B2 provided on the side of the retaining wall block 910, etc., or the surface water is sprayed and people or buildings that pass near the installation location of the drainage groove B2 This is not preferable.
[0005]
On the other hand, FIG. 22 is a figure which shows the Example of the retaining wall block 920 of a prior art. In the case of the embodiment shown in FIG. 22, the upper end surface of the earth retaining wall 921 is made higher than the road surface of the sidewalk A2 with respect to the prior art shown in FIG. For this reason, there existed a problem that surface water collected on the upper surface of sidewalk A2.
[0006]
Moreover, FIG. 23 is a figure which shows the other Example of the retaining wall block 930 of a prior art. In the embodiment shown in FIG. 23, a drainage groove B3 is provided on the sidewalk A2 side. Thus, if the drainage groove B3 is provided, it can be prevented that the drain wall B3 protrudes to the outer wall side of the retaining wall block 930. However, if the drainage groove B3 is provided on the side of the sidewalk A2, the width of the sidewalk A2 will be reduced accordingly. That is, there is a problem that the road A cannot be effectively used. Further, if the drainage groove B3 is installed on the sidewalk A2 side in this way, it is not preferable from the viewpoint of barrier-free.
[0007]
Furthermore, FIG. 24 is a figure which shows the further another Example of the retaining wall block 940 of a prior art. In the case of the embodiment shown in FIG. 24, drainage grooves 941b are formed on the inner wall surface 941a of the retaining wall 941, and the draining grooves 941b are communicated with the outer wall surface 941b in the middle portion of the retaining wall 941. For this purpose, a drain hole 941c is formed. Thereby, not only the surface water on the sidewalk A2, but also the underground water in the sidewalk A2 can be drained to the drainage groove B2 along the arrow (1). However, with such a configuration, the drainage groove 941b and the drainage hole 941c are clogged with use, and eventually jump out to the outer wall side of the retaining wall block 930 as indicated by the arrow (2). was there. In the case of the conventional example shown in FIG. 13, even when it rains, it can be discharged only after penetrating deeply into the ground, and there is a problem that the ground becomes muddy.
[0008]
Accordingly, the present invention has been devised, and the present invention provides a retaining wall block capable of smoothly and quickly draining surface water and underground water to the outer wall side of the retaining wall. It is an object.
[0009]
[Problems to be solved by the invention]
In order to achieve this object, the retaining wall block according to claim 1 is provided with a fixing wall and a soil retaining wall, and a soil hole is formed at a location where a through hole or a notch is formed in an upper end portion of the soil retaining wall. A groundwater drainage member fixed so as to be opposed to a soil material or road pavement to be fastened, and an outer wall surface of the earth retaining wall, and from the location of the groundwater drainage member A recessed portion for water conveyance that extends downward from the earth retaining wall, and the groundwater drainage member is configured to remove underground water contained in the earth material or road pavement from the outside of the earth retaining wall. While draining to the wall surface, the recessed portion for guiding water guides underground water drained from the underground water draining member below the retaining wall.
[0010]
The retaining wall block according to claim 2, wherein the retaining wall block includes a fixing wall and a retaining wall, wherein the retaining wall block has a through hole or a notch formed at an upper end portion of the retaining wall. A surface water drainage member fixed to the upper end surface side or the inner wall surface side of the earth retaining wall, and an outer wall surface side of the soil retaining wall, and the surface water drainage member is disposed from the location of the surface water drainage member. A surface water drainage member extending downward from the wall, and the surface water drainage member drains the surface water accumulated on the top surface of the earth material or road pavement material to the outer wall surface of the earth retaining wall. On the other hand, the recessed part for water conveyance guides the surface water drained from the surface water draining member to the lower side of the earth retaining wall.
[0011]
The retaining wall block according to claim 3 is the retaining wall block according to claim 1, wherein the retaining wall block is formed integrally with the underground water drainage member and is fixed to the upper end surface side or the inner wall surface side of the earth retaining wall. A water drainage member is provided, and the water guide recess also guides the surface water drained through the surface water drainage member and guides the water downward to the earth retaining wall.
[0012]
The retaining wall block according to claim 4 is the retaining wall block according to any one of claims 1 to 3, wherein the underground water contained in the earth material or road pavement to be retained, or the earth material or road pavement. A guide portion is provided for guiding the surface water accumulated on the material to the location where the underground water drainage member or the surface water drainage member is disposed.
[0013]
The retaining wall block according to claim 5 is the retaining wall block according to any one of claims 1 to 4, wherein a concave and convex portion for buffering for slowing the flow of drainage is formed on the surface of the concave portion for water conveyance. Yes.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. Of course, since the following examples only show preferred examples of the present invention, the technical scope of the present invention is not limited to the following examples.
[0015]
FIG. 1 is a perspective view of a retaining wall block 1 showing an embodiment of the present invention. As shown in FIG. 1, the retaining wall block 1 has a substantially L-shaped cross section, and mainly includes a soil retaining wall 11, a fixing wall 12, a drainage member 13, and a water guiding recess 14. It is constituted by. Here, the shape of the retaining wall block 1 is, of course, not limited to the one having a substantially L-shaped cross section, and may be a trapezoidal shape or the like as long as it includes a retaining wall portion and a fixing wall portion. Needless to say, the shape may be any other shape.
[0016]
The earth retaining wall 11 is disposed on the side surface of the road A where embankment or cutting is performed, and is for retaining earth (preventing landslide). The fixing wall 12 is for fixing the retaining wall block 1 to the ground, and is integrally formed below the earth retaining wall 11. The drainage member 13 is for draining the water on the upper surface or the inside of the road A disposed on the inner wall surface 11a side of the retaining wall 11 to the outer wall surface 11b of the retaining wall 11, and has an upper end surface. The surface water drain plate 13a disposed on the 11c side and the ground water drain plate 13b disposed on the inner wall surface 11a side are configured. The material of the drainage member 13 is not limited in any way. For example, the drainage member 13 may be metallic such as iron, may be porous concrete, and may be a filter or other suction preventing material. However, a hard material is preferable.
[0017]
The surface water drainage plate 13a is disposed on the upper end surface 11c side of the earth retaining wall 11, and the surface water collected on the upper surface of the road pavement material C (see FIG. 3) to be earth retaining is used for the earth retaining wall 11. The surface wall 11b is provided with a plurality of surface water through holes 13c whose opening faces the direction of the upper end surface of the earth retaining wall 11. The surface water is drained through the surface water through holes 13c.
[0018]
The underground water drainage plate 13b is disposed on the inner wall surface 11a side of the retaining wall 11, and the underground water collected inside the road pavement C that is the target of retaining soil is removed from the retaining wall 11. It is for draining to the side wall surface 11b, and is provided with a plurality of underground water through holes 13d whose opening faces are directed to the road pavement material C. The underground water is drained through the underground water through hole 13d.
[0019]
Here, the surface water drain plate 13a and the underground water drain plate 13b are integrally formed so as to have a substantially L-shaped cross section. Therefore, the configuration of the retaining wall plate 1 that can drain both surface water and underground water can be simplified. Of course, the shape of the drainage plate 13 is not limited to a shape having a substantially L-shaped cross section, and may be various shapes such as a box shape (housing shape).
[0020]
The water guide recess 14 is for guiding the surface water and underground water drained by the surface water drain plate 13 a and the underground water drain plate 13 b to the lower side of the soil retaining wall 11. It is the side wall surface 11b, Comprising: It extends in the concave shape toward the downward direction from the arrangement | positioning location of the member 13 for drainage. And since it is formed in a concave shape in this way, that is, it is recessed compared with the other outer wall surface 11b, the passage of drainage can be limited. As a result, for example, even if a large amount of rain falls, it is possible to prevent the drained surface water and underground water from flowing in unexpected directions, and for soil retention due to stains generated over time due to drainage. It is possible to prevent the beauty of the wall 11, that is, the beauty of the retaining wall block 1 from being damaged.
[0021]
Hereinafter, with reference to FIG. 3, the installation example of the retaining wall block 1 is demonstrated. In the case shown in FIG. 3, the road pavement material C to be soiled is water-permeable, and therefore the height of the upper end surface 11 c of the soil retaining wall 11 is the same as the height of the upper surface of the road pavement C. It is said that the height. And according to the retaining wall block 1 installed in this way, when underground water is generated inside the road pavement material C due to rain or the like, this underground water becomes the installation location of the retaining wall 11. It flows to (inner wall surface 11a). The underground water that has reached the inner wall surface 11a is guided along the inner wall surface 11a to the place where the drainage member 13 is disposed. That is, in the case of the installation example shown in FIG. 3, the guide portion 15 that guides the underground water to the place where the drainage member is disposed is constituted by the upper portion of the inner wall surface 11 a of the earth retaining wall 11. Of course, some underground water reaches the drainage member 13 without reaching (in contact with) the inner wall surface 11a.
[0022]
The underground water drained to the outer wall surface 11b of the retaining wall 11 through the underground water through-hole 13d of the draining member 13 is the water guide recess 14 formed on the outer wall surface 11b of the retaining wall 11. The water is led to the inside of the drainage groove B2 disposed on the lower side of the retaining wall 11. Here, the recessed part 14 for water conveyance is provided to the height of the upper end surface of the drainage groove B2, and the lower side is embedded below the height. Thereby, all the underground water drained can be led to the drainage groove B2. Of course, when a large or small river flows instead of the drainage groove B2, water may be guided to the river.
[0023]
The upper end surface 11c of the earth retaining wall 11 may be formed obliquely so that the outer wall surface 11b becomes higher (not shown). If formed in this way, even when the surface of the road pavement C does not penetrate into the interior of the road pavement C and flows to the installation site of the earth retaining wall 11 as the surface water, this skew is formed. A guide portion for guiding the surface water to the installation location of the drainage member 13 can be formed by the upper end surface 11 c of the earth retaining wall 11.
[0024]
Next, referring to FIG. 4, it is a diagram illustrating another installation example of the retaining wall block 1. In addition, the same code | symbol is attached | subjected to the part same as the installation example shown in FIG. 3, description is abbreviate | omitted, and only a different part is demonstrated. In the case shown in FIG. 4, the road pavement material C to be soiled is non-permeable, and therefore the height of the upper end surface 11 c of the soil retaining wall 11 is higher than the height of the upper surface of the road pavement C. Is also high. And according to the retaining wall block 1 installed in this way, when surface water is generated on the upper surface of the road pavement material C due to rain or the like, the surface water is disposed at the place where the earth retaining wall 11 is installed (inside Flow to the side wall 11a). The surface water that has reached the inner wall surface 11a is guided along the inner wall surface 11a to the place where the drainage member 13 is disposed. That is, in the case of the installation example shown in FIG. 4, the guide portion 15 that guides the surface water to the place where the drainage member is disposed is constituted by the upper portion of the inner wall surface 11 a of the earth retaining wall 11. Of course, some surface waters reach the drainage member 13 without reaching (contacting) the inner wall surface 11a. In addition, when the height of the upper end surface 11c of the retaining wall 11 is higher than the height of the upper surface of the road pavement material C, the same effect is exhibited even if the road pavement material C is water permeable. Is omitted.
[0025]
The surface water drained to the outer wall surface 11b of the retaining wall 11 through the underground water through hole 13d of the draining member 13 is supplied to the recessed portion 14 for guiding water formed on the outer wall surface 11b of the retaining wall 11. The water is led to the inside of the drainage groove B <b> 2 disposed on the lower side of the earth retaining wall 11. That is, by using the installation example shown in FIG. 4, surface water can be drained through the groundwater drainage plate 13a which is the main purpose for draining groundwater.
[0026]
"Second Example"
Next, another embodiment (second embodiment) of the present invention will be described with reference to FIG. In addition, the same code | symbol is attached | subjected to the part same as 1st Example, the description is abbreviate | omitted, and only a different part is demonstrated. According to the retaining wall block 2 of the second embodiment shown in FIG. 5, the drainage member 23 and the drainage recess 24 are provided on the longitudinal end 11d side of the earth retaining wall 11 (only one is shown). . By combining the two retaining wall blocks 2 and 2, the drainage member 13 and the drainage recess 24 shown in the first embodiment have the same configuration. Therefore, compared with the case where the retaining wall block 1 is manufactured, the production of the retaining wall block 2 can be simplified.
[0027]
“Third Example”
Next, still another embodiment (third embodiment) of the present invention will be described with reference to FIG. In addition, the same code | symbol is attached | subjected to the part same as the said Example, the description is abbreviate | omitted, and only a different part is demonstrated. The retaining wall block 3 of the third embodiment shown in FIG. 6 is obtained by omitting the surface water drainage plate 13a from the retaining wall block 1 of the first embodiment. That is, the drainage member is constituted only by the underground water drainage plate 13b.
[0028]
"4th Example"
Next, still another embodiment (fourth embodiment) of the present invention will be described with reference to FIG. In addition, the same code | symbol is attached | subjected to the part same as the said Example, the description is abbreviate | omitted, and only a different part is demonstrated. The retaining wall block 4 of the fourth embodiment shown in FIG. 7 is obtained by omitting the underground water drainage plate 13b from the retaining wall block 1 of the first embodiment. That is, the drainage member is constituted only by the surface water drainage plate 13a.
[0029]
"5th Example"
Next, still another embodiment (fifth embodiment) of the present invention will be described with reference to FIG. In addition, the same code | symbol is attached | subjected to the part same as the said Example, the description is abbreviate | omitted, and only a different part is demonstrated. The retaining wall block 5 of the fifth embodiment shown in FIG. 8 is obtained by providing a guiding convex wall 55 on the upper end surface 11c of the earth retaining wall 11 with respect to the retaining wall block 1 of the first embodiment. Even if the retaining wall block 5 is installed as shown in FIG. 8, the surface water can be guided to the location where the drainage member 13 is disposed by the guide convex wall 55.
[0030]
“Sixth Example”
Next, still another embodiment (sixth embodiment) of the present invention will be described with reference to FIG. In addition, the same code | symbol is attached | subjected to the part same as the said Example, the description is abbreviate | omitted, and only a different part is demonstrated. In the retaining wall block 6 of the sixth embodiment shown in FIG. 9, a buffer uneven portion 14 a for slowing the flow of drainage is formed on the surface of the water guide recess 14. Thereby, even if a large amount of drainage flows, it is possible to prevent the splashing of water from splashing.
[0031]
"Seventh Example"
Next, still another embodiment (seventh embodiment) of the present invention will be described with reference to FIGS. In addition, the same code | symbol is attached | subjected to the part same as the said Example, the description is abbreviate | omitted, and only a different part is demonstrated.
[0032]
The retaining wall block 7 of the seventh embodiment shown in FIGS. 10 to 12 is provided with a grating 73 along the upper end portion of the inner wall surface 11a of the retaining wall 11 and over the entire upper end portion thereof. The grating 73 is capable of draining both underground water and surface water, and the cross section in the height direction is formed in a lattice shape, and a plurality of through holes 73b are formed on the contact surface 73a side with the road pavement material C. It is formed on the entire surface. Therefore, even when a large amount of underground water is generated in the road pavement material C, the ground water can be quickly drained without being submerged under the road pavement material C (deep underground). Moreover, since it is formed in a lattice shape, a large amount of surface water generated on the road pavement material C can be drained through the lattice holes 73c.
[0033]
Similar to the water guide recess 14 and the water guide recess 24, the water guide recess 74 is for guiding surface water and underground water to the lower side of the soil retaining wall 11, and the side wall surface 11 b of the soil retaining wall 11. It is configured to include a communication portion 74a that is formed on the side and the end portion 11d in the longitudinal direction and communicates with the grating 73 disposed on the inner wall surface 11a side. Thus, since the water introduction recessed part 74 connected to the grating 73 is formed in the side edge part of the earth retaining wall 11, the formation operation of the water supply recessed part 74 connected to the grating 73 can be made easy. In addition, when the main retaining wall blocks 7 are arranged, as shown in FIG. 12, the water introduction recesses 74 are positioned adjacent to each other, and a large amount of underground water and surface water can be introduced.
[0034]
“Eighth Example”
Next, still another embodiment (eighth embodiment) of the present invention will be described with reference to FIGS. In addition, the same code | symbol is attached | subjected to the part same as the said Example, the description is abbreviate | omitted, and only a different part is demonstrated. In the retaining wall block 8 shown in FIGS. 13 and 14, the underground water drainage plate 13 b is fixed to the upper end portions of the earth retaining walls 11, 11 arranged at adjacent positions by screws 70 or the like. Therefore, the underground water drain plate 13b can be retrofitted after the retaining wall block 8 is installed, and the adjacent retaining wall blocks 8 can be joined to each other via the underground water drain plate 13b. The underground water drained through the underground water draining plate 13b is drained through the water guide recess 24.
[0035]
"Ninth Example"
Next, still another embodiment (Ninth Embodiment) of the present invention will be described with reference to FIGS. In addition, the same code | symbol is attached | subjected to the part same as the said Example, the description is abbreviate | omitted, and only a different part is demonstrated. The retaining wall block 9 of the ninth embodiment shown in FIGS. 15 and 16 is provided with a surface water drain plate 13a integrally with the underground water drain plate 13b constituting the retaining wall block 8 of the eighth embodiment. Is. Therefore, not only underground water but also surface water can be drained smoothly.
[0036]
“Tenth Embodiment”
Next, still another embodiment (tenth embodiment) of the present invention will be described with reference to FIGS. In addition, the same code | symbol is attached | subjected to the part same as the said Example, the description is abbreviate | omitted, and only a different part is demonstrated. In the retaining wall block 1A shown in FIGS. 17 and 18, two attachment points for the underground water drainage plate 13b are formed on one earth retaining wall 11. Thus, there may be a plurality of attachment locations of the underground water drainage plate 13b, and the attachment locations are not limited to the longitudinal end portion 11d of the earth retaining wall 11.
[0037]
The underground water drainage plate 13b is composed of a first underground water drainage plate 13b1 made of porous concrete, and a second underground water drainage plate 13b2 made of an iron material having a plurality of through holes. Yes. In this way, the underground water drain plate 13b may have a laminated structure. Of course, the material for the laminated structure is not limited to the above embodiment. For example, the material of the first underground water drainage plate 13b1 may be a filter material or the like, but in the case of a laminated structure, the first underground water drainage plate 13b1 (that is, the one in contact with the road pavement material C ( The material of the drainage plate on the inner wall surface 11a side) is preferably finer than the material of the second underground water drainage plate 13b2 (drainage plate on the outer wall surface 11b side). By having such a laminated structure, even if the earth retaining object is a fine earth material, it flows out to the outer wall surface 11b side of the earth retaining wall 11 through the underground water drainage plate 13b. It can be prevented.
[0038]
Also on the outer wall surface 11b side of the earth retaining wall 11, a plurality of water guide recesses 14 (two in this embodiment) are formed. A communication hole 14b that communicates from the outer wall surface 11b side of the earth retaining wall 11 to the inner wall surface 11a side is formed above the water guide recess 14. And the surface water drained through the underground water drain plate 13b and the underground water are guided to the recessed portion 14 for guiding water through the communication hole 14b.
[0039]
“Eleventh Example”
Next, still another embodiment (an eleventh embodiment) of the present invention will be described with reference to FIGS. In addition, the same code | symbol is attached | subjected to the part same as the said Example, the description is abbreviate | omitted, and only a different part is demonstrated. The retaining wall block 1B of the eleventh embodiment shown in FIGS. 19 and 20 has a plurality of slits (notches) 113 communicating with the upper end of the retaining wall 11 from the inner wall surface 11a side to the outer wall surface 11b side. Is formed. And underground water and surface water are drained through the slit 113. The retaining wall block 1B of the eleventh embodiment is effective when the earth retaining object is the road pavement material C. This is because the road pavement material C does not flow as a slit, unlike the soil material. For this reason, reduction of manufacturing cost and simplification of construction work can be realized.
[0040]
A plurality of water guide recesses 14 corresponding to the slits 113 are formed on the outer wall surface 11b side of the earth retaining wall 1B. Then, the surface water and the underground water drained through the slit 113 are guided downward through the water guide recess 14.
[0041]
The present invention has been described based on the embodiments. However, the embodiments of the present invention are not limited to the above-described embodiments, and various improvements and modifications can be made without departing from the spirit of the present invention. Can be easily guessed. The technical scope of the present invention includes these various improved modifications.
[0042]
The present invention includes the following inventions.
[0043]
The soil material or road pavement is fixed to the earth hole or road paving material to be earthed, in a through hole or notch formation portion formed at the upper end of the retaining wall constituting the retaining wall block. The retaining wall block drainage member (A), wherein underground water contained in the material is drained to an outer wall surface of the retaining wall.
[0044]
Soil that is fixed to the upper end surface side or the inner wall surface side of the retaining wall and is soiled and is a place where a through hole or a notch is formed in the upper end portion of the retaining wall constituting the retaining wall block. A drainage member (B) for a retaining wall block, wherein surface water collected on the upper surface of the lumber or road pavement is drained to an outer wall surface of the retaining wall.
[0045]
A retaining wall block drainage member (C) formed integrally with the retaining wall block (A) and fixed to the upper end surface side or the inner wall surface side of the retaining wall.
[0046]
A retaining wall block having a fixing wall and a retaining wall, and a drainage notch formed at the upper end of the retaining wall so as to communicate with the retaining wall from the inner wall surface side to the outer wall surface side And a water guide recess formed on the outer wall surface side of the retaining wall and extending downward from the retaining wall to the drainage notch, and the drainage notch The section drains ground water contained in the earth material or road pavement to be earthed and surface water collected on the upper surface of the earth material or road pavement to the outer wall surface of the retaining wall, The retaining wall block (D), wherein the recessed portion for guiding water guides surface water and underground water drained from the notch for draining to the lower side of the wall for earth retaining.
[0047]
【The invention's effect】
According to the retaining wall block according to claim 1, the underground water is transferred to the outer wall surface of the earth retaining wall by the underground water drainage member fixed so as to face the earth material to be earthed or the road pavement material. Since it drains, there exists an effect that it can prevent that water accumulates in the earth material or road pavement material to be earthed. In particular, it becomes possible to quickly drain water near the surface without penetrating deeply into the ground.
[0048]
Further, since the underground water is drained to the outer wall surface of the retaining wall by the underground water drainage member, it is possible to prevent the splashing from flying to the side of the retaining wall. .
[0049]
Further, the groundwater drained by the underground water drainage member is formed by the recessed portion for water introduction formed on the outer wall surface of the soil retaining wall and extending from the location where the underground water drainage member is disposed to the lower side of the soil retaining wall. Since the middle water is introduced below the retaining wall, the passage of water can be limited, and even if a large amount of underground water is generated due to rain, etc. There is an effect that water can be guided to the lower side of the wall.
[0050]
Furthermore, since the underground water drainage member is formed in the through hole or notch formation portion of the upper end portion of the earth retaining wall, the underground water is smoothly drained to the outer wall surface of the earth retaining wall. There is also an effect of being able to.
[0051]
According to the retaining wall block of claim 2, the surface water is drained from the surface of the retaining wall by the surface water drainage member fixed to the upper side of the through hole or notch forming portion formed in the upper end of the retaining wall. Since it drains to an outer wall surface, there exists an effect that it can prevent that surface water accumulates on the upper surface of the earth material or road pavement material retained.
[0052]
In addition, since the surface water is drained to the outer wall surface of the retaining wall by the surface water draining member, it is possible to prevent the splashing of water from flying to the side of the retaining wall. Play.
[0053]
Furthermore, the underground water drained by the underground water drainage member is formed by the recessed portion for water introduction formed on the outer wall surface of the soil retaining wall and extending from the location where the surface water drainage member is disposed to the lower side of the soil retaining wall. Since the water is introduced below the retaining wall, it is possible to limit the passage of water. As a result, even if a large amount of surface water is generated due to rain, etc., the large amount of surface water is moved below the retaining wall. There is an effect that it is possible to guide water.
[0054]
Furthermore, since the underground water drainage member is fixed to the through hole or notch formation portion at the upper end of the retaining wall, the groundwater can be smoothly drained to the outer wall surface of the retaining wall. In addition, it is possible to perform the fixing operation of the underground water drainage member even after the retaining wall block is installed.
[0055]
According to the retaining wall block according to claim 3, in addition to the effect produced by the retaining wall block according to claim 2, further, by the underground water fixed so as to face the earth material to be earthed or the road pavement material The groundwater contained in the soil material or road pavement is drained to the outer wall surface of the retaining wall, while the groundwater drained from the groundwater draining member is used for retaining soil by the recessed portion for water conveyance. Since the water is guided to the lower side of the wall, the same effect as the retaining wall block according to claim 1 can be obtained.
[0056]
According to the retaining wall block according to claim 4, in addition to the effect produced by the retaining wall block according to any one of claims 1 to 3, the retaining wall block is further included in the earth material or road pavement material retained by the guide portion. Ground water or surface water that accumulates on those earth materials or road pavement materials is guided to the location of the ground water drainage member or surface water drainage member, so drainage of surface water or ground water There exists an effect that it can be made smooth.
[0057]
According to the retaining wall block according to claim 5, in addition to the effect produced by the retaining wall block according to any one of claims 1 to 4, Since the flow of the water is slowed down, it is possible to prevent the occurrence of splashing when the wastewater collides with an object disposed below the retaining wall.
[Brief description of the drawings]
FIG. 1 is a perspective view from the inner wall surface side of a retaining wall block according to an embodiment of the present invention.
FIG. 2 is a perspective view from the outer wall surface side of the retaining wall block shown in FIG. 1;
FIG. 3 is a diagram showing an installation example of a retaining wall block shown in FIG. 1;
4 is a view showing another installation example of the retaining wall block shown in FIG. 1. FIG.
FIG. 5 is a perspective view showing a state in which the retaining wall blocks of the second embodiment are arranged.
FIG. 6 is a diagram illustrating an installation example of a retaining wall block according to a third embodiment.
FIG. 7 is a diagram illustrating an installation example of a retaining wall block according to a fourth embodiment.
FIG. 8 is a diagram illustrating an installation example of a retaining wall block according to a fifth embodiment.
FIG. 9 is a diagram illustrating an installation example of a retaining wall block according to a sixth embodiment.
FIG. 10 is a perspective view from the inner wall surface side of the retaining wall block of the seventh embodiment.
11 is a perspective view from the outer wall surface side of the retaining wall block shown in FIG.
12 is a plan view showing a state in which the retaining wall blocks shown in FIG. 10 are installed side by side. FIG.
FIG. 13 is a perspective view from the inner wall surface side of the retaining wall block of the eighth embodiment.
14 is a perspective view from the outer wall surface side of the retaining wall block shown in FIG. 13; FIG.
FIG. 15 is a perspective view from the inner wall surface side of the retaining wall block of the ninth embodiment.
16 is a perspective view from the outer wall surface side of the retaining wall block shown in FIG. 15. FIG.
FIG. 17 is a perspective view from the inner wall surface side of the retaining wall block of the tenth embodiment.
18 is a perspective view from the outer wall surface side of the retaining wall block shown in FIG.
FIG. 19 is a perspective view from the inner wall surface side of the retaining wall block of the eleventh embodiment.
20 is a perspective view from the outer wall surface side of the retaining wall block shown in FIG. 19. FIG.
FIG. 21 is a view showing an installation example of a retaining wall block according to the prior art.
FIG. 22 is a view showing another installation example of the retaining wall block of the prior art.
FIG. 23 is a view showing still another installation example of the retaining wall block of the prior art.
FIG. 24 is a view showing still another installation example of the retaining wall block of the prior art.
[Explanation of symbols]
1 Retaining wall block
2 Retaining wall blocks
3 Retaining wall blocks
4 Retaining wall blocks
5 Retaining wall blocks
6 Retaining wall block
7 Retaining wall block
8 Retaining wall block
9 Retaining wall block
1A Retaining wall block
1B Retaining wall block
11 retaining wall
11a inner wall
11b Outside wall
12 Fixing wall
13 Material for drainage
13a Surface water drain plate
13b Groundwater drain plate
13b1 First underground water drainage plate
13b2 Second underground water drainage plate
14 Recess for water conveyance
15 Guide
23 Drainage members
24 Concavity for water conveyance
55 Convex wall for guidance
73 Grating
74 Recess for water conveyance
113 slit

Claims (5)

In retaining wall block with fixing wall and retaining wall,
A member for groundwater drainage fixed to the earth material or road pavement material to be earthed, in the through hole or notch formation portion formed in the upper end portion of the earth retaining wall,
Formed on the outer wall surface of the soil retaining wall, and provided with a recessed portion for guiding water that extends downward from the location of the soil retaining wall from the location where the underground water drainage member is disposed,
While the underground water drainage member drains underground water contained in the earth material or road pavement material to the outer wall surface of the earth retaining wall,
The retaining wall block characterized in that the recessed portion for guiding water guides underground water drained from the member for draining underground water to the lower side of the wall for earth retaining. In retaining wall block with fixing wall and retaining wall,
A surface water drainage member which is a through-hole or notch formation portion formed in the upper end portion of the earth retaining wall and is fixed to the upper end surface side or the inner wall surface side of the earth retaining wall;
Formed on the outer wall surface side of the soil retaining wall, and provided with a recessed portion for water conveyance extending from the location of the surface water drainage member to the lower side of the soil retaining wall,
While the surface water drainage member drains the surface water collected on the upper surface of the soil material or road pavement material to the outer wall surface of the soil retaining wall,
The retaining wall block is characterized in that the recessed portion for guiding water guides the surface water drained from the surface water draining member to the lower side of the earth retaining wall. A surface water drainage member that is integrally formed with the underground water drainage member and is fixed to the upper end surface side or the inner wall surface side of the earth retaining wall,
2. The retaining wall block according to claim 1, wherein the recessed portion for guiding water guides the surface water drained through the surface water draining member to the lower side of the earth retaining wall. Guide the underground water contained in the soil material or road pavement to be retained, or the surface water accumulated on the soil material or road pavement to the location of the groundwater drainage member or surface water drainage member The retaining wall block according to claim 1, further comprising a guide portion. The retaining wall block according to any one of claims 1 to 4, wherein an uneven portion for buffering for slowing a flow of drainage is formed on a surface of the recessed portion for water conveyance.

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