JP2006037484A - Construction method of unevenness correcting layer, construction method of artificial turf ground and artificial turf ground - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a construction method of an unevenness correcting layer and a construction method of the artificial turf ground for inexpensively constituting the artificial turf ground hardly being heated to a high temperature in a ground surface without requiring a complicated process for construction, and the artificial turf ground. <P>SOLUTION: This construction method of the unevenness correcting method 1 constitutes the artificial turf ground. The unevenness correcting layer 1 is formed by mixing a woody material 3 in the surface layer earth 2. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a method for constructing an uneven terrain layer and an artificial turf that constitute an artificial turf ground used as a sports ground such as a soccer field, golf course (green or fairway), various stadiums, tennis courts, baseball grounds, etc. The present invention relates to a ground construction method and an artificial turf ground.

  As a conventional artificial turf ground construction method, after excavating about 15 cm of the ground surface soil, crushed stone pavement is formed to form a lower roadbed, and this lower roadbed is paved with permeable asphalt concrete, and an artificial turf mat is placed thereon There is something to lay. Here, the water-permeable asphalt concrete is one in which asphalt is used as a consolidation material for consolidation of a plurality of aggregates. Therefore, in the construction method described above, by laying a mixture of aggregate and asphalt on the lower roadbed, a plurality of aggregates are consolidated and integrated after asphalt concrete curing to form an unsteady leveling layer.

  Also, as another construction method, a plurality of aggregates are spread on the lower roadbed, and adhesive resin is sprayed as a solidifying material, and the aggregates are consolidated and integrated to form an uneven surface leveling layer. There is also.

In other words, when the uneven surface layer is not provided as described above, the artificial turf installation surface becomes uneven due to heavy machinery operation, etc. when laying the artificial turf, and the finished artificial turf surface also has unevenness and its use Therefore, the formation of the uneven leveling layer is essential for the construction of the artificial turf ground.
JP-A-10-37122

  However, in the construction method as described above, the management is difficult due to the complicated process, and in addition, the processing of excavated soil (residual soil processing) and the like are costly and labor intensive. In addition, since the ground of the artificial turf is asphalt concrete or concrete, there is a problem that the ground becomes hot, which may interfere with sports on the ground, and the deterioration of the artificial turf progresses quickly. is there.

  The present invention has been made in consideration of the above-mentioned matters, and its purpose is to provide an artificial turf ground that constitutes an artificial turf ground that does not require a complicated process for construction, is inexpensive, and the ground surface is unlikely to be hot. It is providing the construction method, the construction method of the artificial turf ground, and the artificial turf ground.

  In order to achieve the above object, the construction method of the uneven ground leveling layer according to the present invention is a construction method of the uneven ground leveling layer constituting the artificial turf ground, and the uneven ground leveling layer is applied to the surface soil. A wood material is mixed and formed (claim 1).

  The volume ratio of the wood material to the surface soil is preferably 0.2 to 0.5 (Claim 2), and the wood material is formed in a chip shape, a small piece shape or a granular shape. (Claim 3).

  Moreover, in order to achieve the said objective, the construction method of the artificial turf ground of this invention lays the artificial turf on the upper side of the uneven surface leveling layer formed by the construction method in any one of Claims 1-3. (Claim 4), or forming a non-landing leveling layer by the construction method according to any one of claims 1 to 3, and laying artificial grass on the upper side (Claim 5) Yes.

  Moreover, in order to achieve the said objective, the artificial turf ground of this invention was formed by the construction method of Claim 4 or 5, It is characterized by the above-mentioned (Claim 6).

  In the invention according to claim 1, an inexpensive uneven terrain layer for artificial turf ground construction that does not require a complicated process for construction can be obtained. In other words, when constructing the uneven surface leveling layer constituting the artificial turf ground, the soil at the site can be used as it is, and in addition to the need for residual soil treatment, crushed stone and asphalt concrete are separately prepared. There is no need. Therefore, the construction method of the unevenness leveling layer is not only excellent in economic efficiency, but also the construction process is very simple, and the labor for construction can be reduced.

  Moreover, the construction method of the above-mentioned unevenness leveling layer does not use a binder agent such as asphalt, so it does not adversely affect or burden the environment. Therefore, effective use of resources that have been increasingly demanded in recent years is promoted. Moreover, when the artificial turf ground including the non-landing layer that has been constructed in the future needs to be repaired, the treatment can be easily performed.

  Furthermore, the surface soil and the wood material constituting the uneven land leveling layer have water retention, and when the surface temperature of the artificial turf ground including the uneven surface level rises, the water contained in the surface soil and the wooden material Evaporates. And by this transpiration action, the artificial grass ground has a structure in which the surface is not easily heated. Therefore, exercise on the artificial turf ground can be performed comfortably, and the deterioration of the artificial turf due to the temperature rise can be delayed and the life thereof can be extended.

  In addition, the wood material mixed with the surface soil can give the artificial turf ground including the uneven surface layer an appropriate cushioning property, and the burden on the body of the person exercising on the artificial turf ground is reduced. Can be reduced. In addition, the woody material can provide water permeability to the uneven surface layer to effectively prevent muddying of the ground due to rain or the like, so that the ground usability can be greatly improved.

  Further, in the invention according to claim 2, since the ratio of the wood material mixed with the surface soil is appropriately adjusted, there is almost no void in the uneven surface layer after the rolling, and the uneven surface state is reduced. It is possible to reliably prevent the occurrence of unevenness on the normal layer and the artificial turf surface laid on the upper side of the unevenness adjusting layer. Therefore, for example, a problem that the ball irregularly bounces during a ball game such as soccer on the artificial turf ground is extremely unlikely to occur.

  Furthermore, in the invention according to claim 3, it is easy to mix the wood material with the surface soil, and therefore, the mixed state becomes good, and an unsteady leveling layer for an artificial turf ground configuration with higher performance is obtained. It is done.

  And in the invention which concerns on Claims 4 and 5, the artificial turf ground containing the uneven ground leveling layer which concerns on Claims 1-3 which show said effect can be constructed, In the invention which concerns on Claim 6, An artificial turf ground with the effects of can be obtained.

  1 and 2 show an embodiment of the present invention. FIG. 1 is a longitudinal sectional view schematically showing a configuration of an artificial turf ground according to an embodiment of the present invention. In this figure, 1 is a mixture of at least the surface soil 2 and the wood material 3 in the construction zone. It is a formed leveling layer. This uneven land leveling layer 1 has a thickness of about 5 to 20 cm, preferably about 10 to 15 cm.

  The wooden material 3 is, for example, thinned wood (cutting tree) or building waste material that has been pulverized into chips or crushed, and also is a small piece or crushed material such as plant (fibrous) material such as bamboo or bark. Etc. The wood material 3 may be, for example, powdery particles having a diameter of about 0.5 to 3.0 mm, or larger than that, for example, a diameter of 3.0 to 10.0 mm and a length of 10.0 to 30. It may be in the form of a small piece of about 0 mm, or it may be a chip having a larger diameter, for example, a diameter of about 10 to 30 mm and a length of about 100 to 200 mm. Further, a mixture of these may be used, and in particular, a mixture of powder and small pieces is preferable because a more uniform uneven land leveling layer 1 can be formed.

  Here, the volume ratio (the volume of the wood material 3 / the volume of the surface soil 2) of the wood material 3 and the surface soil 2 in the uneven land leveling layer 1 is preferably 0.2 to 0.5, In particular, it is most preferably 0.3 to 0.4. That is, for example, if the volume ratio is about 0.1 or more, siltation of the artificial turf ground can be prevented to some extent. However, if the volume ratio is less than 0.2, the surface soil 2 is caused by too little wood material 3. There is a possibility that unevenness may occur in the uneven land leveling layer 1 without solidifying. In addition, when the volume ratio is larger than 0.5, the unevenness leveling layer 1 is not hardened due to too much wood material 3, and in addition, the cushioning property of the unevenness leveling layer 1 becomes too good. There is a risk of land formation and hindrance to competition on the artificial turf ground.

  An artificial turf (hereinafter referred to as an artificial turf mat) 4 formed in a mat shape is laid on the upper side of the unevenness leveling layer 1. As this artificial turf mat 4, it is possible to adopt a known structure used for a multipurpose ground or a multipurpose court capable of performing various ball games or athletics. In this embodiment, as the artificial turf mat 4, a large number of leaf stems (pile) 5 formed by imitating natural grass with chemical fibers are planted on the base cloth 6, and Uses long pile artificial turf filled with mesh sand (19 to 25 mm thick) 7 for buffering and configured to exhibit an impact absorbing function corresponding to a natural turf field.

  Next, an example of a construction method for constructing an artificial turf ground including the above-mentioned unevenness leveling layer 1 will be described with reference to FIG. First, a predetermined amount of the wood material 3 is spread over the entire construction zone (S1), and the surface soil 2 and the wood material 3 of the construction zone are mixed by a tractor equipped with a tilling device (S2). Here, the surface soil 2 is soil in a range from the ground surface of the construction zone to a depth of about 10 cm.

  Subsequently, the surface of the mixed layer formed by mixing the surface soil 2 and the wood material 3 is corrected by, for example, a bulldozer (S3), and then, for example, rolling is performed by a roller (S4). As a result, the surface soil 2 mixed with the wood material 3 is solidified in a state having water permeability, and further, for example, leveling (S5) is performed by a motor grader to form the uneven land leveling layer 1. Is done. Then, the artificial turf mat 4 is laid on the uneven ground leveling layer 1 (S6), thereby completing the construction of the artificial turf ground.

  The present invention is not limited to the above-described embodiment, and can be implemented with various modifications. For example, a buffer layer made of an appropriate buffer material (elastic material) such as urethane may be provided between the unevenness leveling layer 1 and the artificial turf mat 4.

  Further, as the artificial turf mat 4, one that is not filled with leaf sand 7 between the leaf stems 5 may be used.

  Here, the construction method of the artificial turf ground (and the construction method of the uneven surface layer) of the present invention is not limited to construction of a large-scale ground such as a soccer field, but construction of a small area such as a play lot in a park. It can also be applied to. In such a case, it is preferable to use a unit-type sand-filled artificial turf as the artificial turf mat 4 because a large machine or the like is not required.

It is a longitudinal cross-sectional view which shows schematically the structure of the artificial grass ground which concerns on one embodiment of this invention. It is a flowchart which shows roughly an example of the construction method for constructing the said artificial turf ground.

Explanation of symbols

1 Unevened layer 2 Surface soil 3 Wood material 4 Artificial grass

Claims (6)

  A method for constructing an uneven leveling layer that constitutes an artificial turf ground, wherein the uneven leveling layer is formed by mixing a wooden material with surface soil. .   The construction method of the unevenness leveling layer according to claim 1, wherein the volume ratio of the wood material and the surface soil is 0.2 to 0.5.   The construction method of the unevenness leveling layer according to claim 1 or 2, wherein the wooden material is formed in a chip shape, a small piece shape, or a powder shape.   An artificial turf ground construction method, wherein artificial turf is laid on the upper side of the uneven surface leveling layer formed by the construction method according to claim 1.   A construction method for an artificial turf ground, characterized in that an uneven surface leveling layer is formed by the construction method according to any one of claims 1 to 3 and artificial turf is laid on the upper side.   An artificial turf ground formed by the construction method according to claim 4 or 5.

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