JP3796382B2 - Pavement structure - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a pavement structure, and more particularly, to a structure for paving sidewalks, approach roads, parking lots and the like using granular fillers.
[0002]
[Prior art]
Pavement using granular materials such as crushed stone and gravel has been used for simple sidewalks, parking lots and the like since it is simpler and cheaper to construct than asphalt. Moreover, in the precincts of temples and shrines, pavement with gravel etc. is performed because it is not preferable for asphalt pavement etc. in view of the landscape. These construction methods have been performed by simply laying a granular material or by rolling with a roller after laying. Further, as another pavement method using a granular material, there is known a method of forming a surface material of a pavement by mixing the granular material with a binder of a synthetic resin adhesive (see Japanese Patent Laid-Open No. 61-172901).
[0003]
On the other hand, as a pavement method for the purpose of improving the natural environment, a method has been proposed in which a porous material as a purification material that adsorbs harmful substances in exhaust gas and wastewater is mixed into the raw material of a water-permeable concrete block. (See JP-A-11-152704).
[0004]
[Problems to be solved by the invention]
However, among the construction methods for pavement using conventional granular materials, the former construction method only lays crushed stones, gravel, etc., and no particular treatment is performed, and it is stiffened by the rolling pressure of a roller etc. Therefore, for example, when the vehicle moves on the construction surface created by this construction method, the gravel on the surface is moved, so it is dangerous to jump off the gravel, or a light vehicle such as a bicycle or a wheelchair is used. When the person who used it passes, the situation where a tire is taken and a run is prevented also occurs.
[0005]
In addition, during use for many years, the movement of gravel on the surface and the outflow of fine particles to the basement cause wrinkles and depressions, and the gap between gravel and the like is compressed by the load of a car, etc. In addition, the accumulation of fine particles such as mud causes a problem that water permeability is deteriorated and the water can be accumulated. Moreover, a lot of maintenance and management costs are required to repair these.
[0006]
On the other hand, in the construction method using the latter synthetic resin adhesive, there is no movement of gravel, but construction costs are expensive, or due to strength problems, it can not be used in applications that require a heavy load, such as vehicles, Furthermore, there is a problem that a large particle size such as crushed stone cannot be used.
[0007]
The permeable concrete block mixed with purification material is mainly intended for purification of rainwater and river water. When liquid containing harmful substances passes through products, It is made to adsorb | suck to remove from liquid. Therefore, when this is used as a pavement material for parking lots, roads, etc., it is effective for rainwater, but a purification action against exhaust gas could hardly be expected.
[0008]
Furthermore, examples of the porous body having a purification action include charcoal and shells in addition to ceramics and zeolite, and among these, there are those that are inappropriate in strength as aggregates of concrete, It is difficult to increase the mixing ratio. In addition, the surface of the porous body is covered with a concrete component, and the function of the porous body may not be fully utilized. Although it is conceivable to lay the porous body directly on the ground, it is weak in strength, so it is not suitable for a portion where a vehicle travels or a person passes.
[0009]
Therefore, the present invention can sufficiently exhibit the purification performance of the porous body, can withstand running of vehicles and walking of humans, and prevents surface depression, poor water permeability, and poor air permeability. It aims to provide a pavement structure that can be.
[0010]
[Means for Solving the Problems]
In order to achieve the above object, the pavement structure of the present invention includes a plurality of protrusions made of a hollow pressure receiving body having a pressure receiving surface at the top and a through hole on the side face, and a continuous wall that connects adjacent protrusions. A mat-like molded body made of a synthetic resin having a void portion surrounded by a mounting portion is connected and laid, and the void portion is filled with a granular filler containing a granular porous body, and The gap is characterized in that it is formed in a rectangular part having four pressure receiving bodies and four connecting sides connecting the pressure receiving bodies .
[0011]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 is a cross-sectional view showing an example of a pavement structure according to the present invention, FIG. 2 is a plan view in which a central portion showing an example of a mat-like molded body is omitted, and FIG. 3 is a front view of the main part.
[0012]
As shown in FIG. 1, the pavement structure shown in this embodiment has harmful components such as ceramic, zeolite, activated carbon, charcoal, and shells in the gap 2 provided in the mat-like molded body 10 laid on the roadbed 1. The filler 3 is filled with a granular porous body having an adsorbing action.
[0013]
As shown in FIGS. 2 and 3, the mat-shaped molded body 10 includes a pressure receiving body 11 composed of protrusions having upper and lower through holes 11a and 11b, and a connecting portion 12 that forms partition walls in a vertical direction and a horizontal direction, respectively. The same number is arranged at intervals, for example, made of a synthetic resin having an outer shape formed in a square shape of 50 cm square, and a male connection for connecting adjacent mat-shaped molded bodies 10 to each other when laid. A portion 13 and a female connecting portion 14 are provided.
[0014]
The pressure receiving body 11 is formed in the shape of a hollow square frustum gradually narrowing from the bottom contact surface 11c toward the top pressure receiving surface 11d, and on each side surface that becomes narrower upward, A vertically long through-hole 11e communicating with is provided.
[0015]
Further, the connecting portion 12 is provided so as to connect the corner portions of the pressure receiving body 11, and as shown in FIG. 3, the upper edge 12 a is at about half the height of the pressure receiving body 11, The lower edge 12 b is formed so as to be positioned slightly above the lower end of the pressure receiving body 1. Thus, the upper edge 12a of the connecting portion 12 is not exposed on the pavement surface, and a space serving as a water passage and an air passage is formed below the lower edge 12b.
[0016]
By forming the mat-like molded body 10 in this way, the four pressure-receiving bodies 11 are apexes, and the connecting parts 12 that connect them are formed into square-shaped parts having four sides, and the molded body is moved upward from the lower part to the upper part. Is formed in the shape of the gap 2.
[0017]
In addition, by forming the mat-like molded body 10 from a synthetic resin, the mat-like molded body 10 can be excellent in lightness, moldability, stability in soil, and the like compared to other materials such as concrete and metal. . The synthetic resin may have any mechanical strength as long as it has a mechanical strength that can withstand the load of a vehicle and the like, and can withstand outdoor use, and in particular, mechanical strength such as polypropylene, polyethylene, ABS, polyvinyl chloride, and FRP. The best synthetic resin is. The size of the mat-shaped molded body 10 may be set in consideration of workability, storage, and transportation. When constructing a vast place, it should be formed in a square or rectangle with a vertical and horizontal dimension of several meters. You can also.
[0018]
Next, the construction example of the pavement structure using this mat-shaped molded object 10 is demonstrated. First, the roadbed construction of the part to be paved is performed. For example, the level adjustment which consists of gravel etc. for obtaining flatness as needed is spread | laid with the thickness of 150-250 mm on the road bed 1a dug down about 200-300 mm in depth, and the crushed stone 1b of about C-40 is spread | laid. The road surface 1 for laying the mat-shaped molded body 10 is formed by adjusting the unevenness by laying and tamping the material with a thickness of about 20 mm. In addition, it is desirable to install partition materials, such as a suitable curbstone, in the outer periphery of a pavement part.
[0019]
Next, the mat-shaped molded bodies 10 are sequentially laid on the upper surface of the roadbed 1, and the adjacent mat-shaped molded bodies 10 are connected to each other by the male connecting portion 13 and the female connecting portion 14. At this time, a drainage material 4 made of a nonwoven fabric or the like may be laid under the mat-shaped molded body 10, and the mat-shaped molded body 10 is fixed to the roadbed 1 using a fixing member such as a pile as necessary. You may make it do. Finally, the filler 3 is put on the mat-like molded body 10 and leveling is performed so that the filler 3 is evenly filled into the gaps 2, and the paving work is completed.
[0020]
When pavement is performed in this way, the size (volume, height, opening area) of the gap 2 and the strength of the pressure receiving body 11 are not only the properties of the filler 3 to be used, but also the usage state of the pavement, In other words, the optimal state should be selected including the presence or absence of traffic of the vehicle and the feel during walking. For example, when the vehicle passes, if the opening width of the gap portion 2 is too wide, the filler 3 may move in the gap portion 2 and the tire may fall. There is a risk of taking a foot in the same way as wide. On the contrary, if the opening is made too narrow, it may hinder the filling of the granular material 2, and therefore it is desirable to make the opening as large as possible within a range that can prevent the tire from dropping.
[0021]
The opening area of the gap 6, that is, the interval between the pressure receiving bodies 11 differs depending on the area of the pressure receiving surface 11 d of the pressure receiving body 11, for example, when pavement is performed on a portion where a light vehicle such as a bicycle or a wheelchair passes. When the size of the pressure-receiving surface 11d is about 2 cm square, the number of the pressure-receiving bodies 11 to be installed is suitably about 15 × 15 for the 50 cm square square mat-shaped molded body 10. Moreover, when paving a car parking lot or the like, about 8 × 8 is appropriate under the same conditions. At this time, if the area of the pressure receiving surface 11d is excessively large, the filling amount of the filler 3 may be reduced and the purification effect may not be sufficiently exhibited. If the area of the pressure receiving surface 11d is excessively small, the pressure receiving body 11 Not only will the strength of the vehicle become weaker, but the feeling during walking will be impaired.
[0022]
Furthermore, if the volume of the gap 2 is too small compared to the average volume of the filler 3, for example, if it is less than 10 times, the filler 3 cannot be filled in the gap 2 on average, and the filler 3 It may protrude from 2. On the other hand, if the volume of the gap 2 is too large compared to the average volume of the filler 3, for example, if it exceeds 10,000 times, the filler 3 filled in the gap 2 cannot be sufficiently retained and blown away by the wind. , May be drained by rainwater.
[0023]
In addition, when the height of the gap 2, that is, the height of the pressure receiving body 11 is too low, the filling material 3 cannot be sufficiently held, and the filling property of the filling material 3 having a large volume also decreases. Conversely, when too high, it will have a bad influence on the moldability of the mat-like molded object 10, and will raise a manufacturing cost. Moreover, the quantity of the filling material 3 with which it fills increases, and construction cost may become high.
[0024]
In addition, by setting the shape and installation interval of the male connecting portion 13 and the female connecting portion 14 in accordance with the connecting portion 12, filling is also performed between the connecting portions of the mat-shaped molded bodies 10 in the same manner as the gap portion 2. The object 3 can be held.
[0025]
Thus, when paving with the filler 3 containing the porous body using the mat-like molded body 10, a gas phase is formed around the porous body in the filler 3 and the surface is not blocked. Therefore, as a matter of course, rainwater passes through the filling 3 portion in the gap 2 downward, and there are through holes 11a, 11b, 11e on the upper and lower sides (the ground contact surface 11c, the pressure receiving surface 11d) and the side surfaces of the pressure receiving body 11, Since there are spaces above and below the connecting portion 12, gas such as exhaust gas can pass through the portion of the filling 3 including the porous body.
[0026]
Therefore, by applying this pavement structure to a parking lot, a surrounding approach road, a sidewalk, and the like, harmful substances and the like in the exhaust gas can be effectively adsorbed and removed. Furthermore, a catalyst component such as a deodorizing agent, a fragrance, or titanium oxide can be attached to the filler 3 in advance, and these components can be kneaded and mixed with the resin forming the mat-like molded body 10. . Moreover, recycled materials, such as slag which generate | occur | produces in an incinerator etc., can also be used as a granular porous body.
[0027]
And by using the mat-like molded body 10 provided with the gap portion 2 as described above, it is possible to prevent the filler 3 from moving while being held in the gap portion 2, so that the filler 3 is dissipated. Disappears. Moreover, since most of the load can be received by the pressure receiving body 11 of the mat-like molded body 10, no wrinkles or depressions are generated. That is, since most of the load from tires, shoes, etc. can be received by the pressure receiving body 11, the filler 3 filled in the gap 2 is hardly compressed by the load, and even if it is compressed In addition, since the lateral movement of the filler 3 is regulated by the pressure receiving body 11 and the connecting portion 12, the occurrence of wrinkles and depressions can be prevented.
[0028]
Further, since the gaps between the fillers 3 are not compressed, fine particles such as mud are not compressed between the fillers 3 and are not clogged, so that the water permeability and air permeability are not lowered. In addition, crushed stone, gravel, boulder gravel, brick scraps and the like are generally used for such granular pavement, but since the load is hardly applied to the filler 3, it cannot be normally used on a pavement surface to which a load is applied. Various porous bodies having inferior mechanical strength and soft granular materials such as bark chips can be used as paving materials.
[0029]
Furthermore, by providing the drainage material 4 made of a nonwoven fabric or the like under the mat-like molded body 10, the drainage performance from the pavement can be improved, and even when the filler 3 has a small particle size, the drainage material. The filler 3 can be reliably held in the gap 2 by 4. Further, such a drainage material 4 can be integrally formed on the lower surface of the mat-like molded body 10 by adhesion or welding. Furthermore, a marker etc. can also be fixed using the upper through-hole 11a of the pressure receiving body 11.
[0030]
In addition, the shape of the mat-like molded body is arbitrary, and any shape may be used as long as it has a void portion that can prevent movement of the filler used as the paving material and can drain water. Furthermore, a porous body may be used as the entire filling material, but it can also be used by appropriately mixing with granular materials such as gravel and quarrying, and the pavement portion is composed of a porous body filling portion and a gravel filling portion. It can also be divided into
[0031]
【The invention's effect】
As described above, according to the pavement structure of the present invention, since the filler containing the granular porous body is filled in the void portion of the mat-like molded body, the porous body portion is secured while maintaining the air permeability. Prevents body movement and dissipation. Thereby, purification of gas such as exhaust gas can be performed effectively, and not only the occurrence of soot and depression can be prevented, but also the deterioration of water permeability and air permeability can be prevented.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view showing an example of a pavement structure according to the present invention.
FIG. 2 is a plan view in which a central portion showing an example of a mat-like molded body is omitted.
FIG. 3 is a front view of the main part of the same.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Roadbed, 2 ... Space | gap part, 3 ... Filling material, 4 ... Drainage material, 10 ... Mat-shaped molded object, 11 ... Pressure receiving body, 11a, 11b, 11e ... Through-hole, 11c ... Grounding surface, 11d ... Pressure receiving surface, 12 ... Connection part, 13 ... Male connection part, 14 ... Female connection part

Claims (2)

From a synthetic resin having a gap surrounded by a large number of protrusions made of a hollow pressure receiving body having a pressure receiving surface at the top and through holes on the side surfaces and a continuous portion forming a partition wall connecting adjacent protrusions. pavement structure laid by connecting a mat-like molded body, into the gap portion, and wherein the filled packing particulate comprising particulate porous material formed. 2. The pavement structure according to claim 1 , wherein the gap portion is formed in a quadrangular portion having four pressure receiving bodies and the connecting portion that connects them as four sides .

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