JP4133494B2 - Underfloor ant protection method - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an underfloor ant prevention method for constructing an underfloor ant structure in a building.
[0002]
[Prior art]
Conventionally, a building such as a wooden building is often damaged by white ants that have crawled up from the ground under the floor surrounded by the foundation. In order to reduce these damages, a structure as shown in FIG. 4 is disclosed in Patent Document 1 below.
[0003]
4, the ground S is dug down along the surface of the inside of the foundation 101 (in this specification, it means the lower floor side with respect to the foundation. In FIG. 3, the right side of the foundation 101 is indicated). Thus, a groove portion 102 is formed, and this groove portion is filled with an ant-proof material 105 having an ant-proof function. The soil concrete 103 is installed on the ant-proof material 105 and the ground S, and the end of the soil concrete 103 and the inner surface of the foundation 101 are in contact with each other. When this structure is adopted, the white ants that inhabit the ground S are prevented from climbing up to the building by the ant-proof material 105 and the soil concrete 103.
[0004]
[Patent Document 1]
Japanese Patent Laid-Open No. 2001-11963
[Problems to be solved by the invention]
In the above structure, the ant-proof material 105 and the soil concrete 103, and the ant-proof material 105 and the ground S are arranged in direct contact with each other, so that the ant-proof material 105 changes with time due to moisture contained in the ground S. There is a risk that the ant-proof effect of the ant-proof material 105 may be reduced. Moreover, when constructing such a structure, it is necessary to fill the groove portion 102 with the ant-proof material 105 in advance before installing the soil concrete 103. Therefore, when placing the soil concrete 103, the concrete at the time of placing is used. There is a possibility that the ant-proof effect of the ant-proof material 105 may be reduced by moisture or moisture contained, particularly strong alkaline water produced during the curing reaction of concrete. Therefore, there has been a demand for an underfloor ant structure that maintains the ant protection effect more reliably during long-term use.
[0006]
An object of this invention is to provide the underfloor ant prevention method for constructing the underfloor ant prevention structure which can hold the ant prevention effect for a long period of time.
[0007]
[Means for Solving the Problems]
The present invention is an underfloor ant prevention method for constructing an underfloor ant structure in which an underfloor ant-proof material and soil concrete are arranged in a lower floor portion surrounded by a building foundation ,
Forming a groove in the ground along the inner base surface of the lower floor portion;
A ground blocking sheet that blocks contact between the ant-proof material and the ground, and covers a region where the ground blocking sheet extends in a strip shape along the inner surface of the foundation and the ground at the bottom of the groove, and A step of installing the inner end of the ground blocking sheet so that it protrudes from the soil part inside the groove,
Filling the ant barrier material on the ground blocking sheet in the groove;
The interstitial concrete barrier sheet that shields the contact between the ant-preventive material and the interstitial concrete covers the ant-preventive material in the groove and the inner edge of the ground barrier sheet protruding from the groove. Laying in such a manner that the inner end of the ground blocking sheet and the blocking sheet for soil concrete is closely attached,
Placing the interstitial concrete on the interstitial part in a state of covering the interstitial concrete barrier sheet;
It is what has.
[0008]
According to this method , during the placement of the soil concrete, the components contained in the soil concrete during the placement work do not adhere to the above-mentioned termite-proof material, and the possibility of a decrease in the medicinal effectiveness of the termite-proof material is reduced. Is done. Furthermore, the order termite material and ground for shielding sheet for blocking contact between the ground is provided, it is less likely to adhere components to termiticidal material contained in the soil, the efficacy of termite material Is further reduced.
[0009]
Moreover, since a groove part is provided in the ground along the said inner surface of a foundation among the said underfloor parts, and this groove part is filled with an ant-proof material, an ant-proof material can be arrange | positioned in the fixed position reliably.
[0010]
The ground blocking sheet is installed along the ground at the bottom of the groove so that its inner end protrudes into the soil part inside the groove, and covers the inner edge and closely contacts the inner edge. since concrete shielding sheet is placed, a state where the inner surfaces of the geotextiles are completely covered with shielding sheet for earth floor concrete, earth floor concrete containing compounds in pouring operations from entering the installation location of the anti-termite material Is deterred.
[0011]
Moreover , since the ground blocking sheet covers a region extending in a strip shape along the inner side surface of the foundation, the ground is mistakenly applied during construction such as when the ground blocking sheet and the soil concrete are disposed. There is almost no risk of stepping on the blocking sheet, and the sheet is prevented from being displaced due to such stepping.
[0012]
Furthermore, the earth floor concrete shielding sheet and underfloor termite structure having anti-termite effect, if the ground for shielding sheet has an anti-termite effect, it is possible to improve the anti-termite effect.
[0013]
Further, when the soil concrete barrier sheet covers the entire area under the floor, the soil concrete placed thereon is reliably prevented from coming into contact with the ground barrier sheet. It is more reliably prevented that the soil-containing concrete-containing component intrudes into the installation place of the above-mentioned termite-proof material through the upper surface.
[0014]
Further, the interstitial concrete barrier sheet is flexible, and the interstitial concrete barrier sheet is in close contact with the foundation inner surface in a state where the outer end of the soil concrete barrier sheet is bent in a direction along the foundation inner surface. When the barrier sheet for concrete is installed, when the outer edge of the barrier sheet for soil concrete is not bent and is in contact with the inner side surface of the foundation, the sheet is slightly displaced. In addition, the contact state between the barrier sheet for soil concrete and the inner side surface of the foundation can be maintained. Moreover, the contact area of the said earth-blocking concrete shielding sheet and the said foundation inner side surface also becomes large. Therefore, the shielding effect between the ant-proof material and the soil concrete and the shielding effect between the ant-proof material and the ground are further improved.
[0015]
DETAILED DESCRIPTION OF THE INVENTION
An embodiment of the present invention will be described with reference to FIGS. However, the present invention is not limited to the following embodiments.
[0016]
FIG. 1 shows a schematic diagram of a structure in the present embodiment. In this figure, the foundation 31 is installed in the ground 41, and the building 10 is installed on it.
[0017]
The foundation 31 is installed on the ground 41 so as to surround an underfloor part of the building 10 (in this figure, the right side part of the foundation 31; the same applies to FIG. 2 and subsequent figures).
[0018]
In addition, the “inside” described below in the description of the present embodiment means the under floor side based on the foundation 31. In FIG. 1 and FIG. 2, the direction toward the right direction with respect to the foundation 31 is indicated.
[0019]
The ground 41 corresponding to the underfloor portion includes a groove portion 43 provided along the inner side surface 31a (corresponding to the inner surface of the foundation) of the foundation 31, and a dirt portion 42 (corresponding to the dirt portion) located inside the groove portion 43. It has. In addition, the groove part 43 is formed in the wedge-shaped shape where the lower side became thin.
[0020]
The ground blocking sheet 11 is a region including the region where the groove 43 is formed and the soil portion 42 and covers a region extending in a strip shape along the base inner side surface 31a. Specifically, the ground blocking sheet 11 is laid along the ground 41 at the bottom of the groove 43, and the inner end 11b of the sheet 11 is laid out from the groove 43 to the soil portion 42. The outer end portion 11a of the blocking sheet 11 is laid in a state in which the outer end portion 11a is in contact with the foundation inner side surface 31a. The nail 71 penetrates the ground blocking sheet 11 in the groove 43 and fixes the ground blocking sheet 11 to the ground 41.
[0021]
In the groove portion 43, the termite-proof material 51 is filled on the ground blocking sheet 11. That is, the contact between the ant-proof material 51 and the ground 41 is blocked by the ground blocking sheet 11.
[0022]
The soil concrete 61 is disposed on the ground 41 so as to cover the entire area under the floor. In addition, as an installation location of the dirt concrete 61, if it is arrange | positioned in the dirt part 42 in the state which covers the groove part 43 at least, it does not necessarily need to arrange in the state which covers the whole under floor part. Moreover, the ant-proof material 25 for soil concrete is arrange | positioned so that the clearance gap part of the upper surface of the soil concrete 61 and the foundation inner side surface 41a may be connected.
[0023]
The interstitial concrete blocking sheet 21 is installed between the interstitial concrete 61, the interstices 42 and the groove 43, and covers the entire area under the floor. That is, the entire area of the groove 43 and the soil portion 42 containing the ant protection material 51 is covered. Further, the outer end portion 21a is in close contact with the foundation inner side surface 31a in a state of being bent in a direction along the foundation inner side surface 31a. That is, the contact between the ant-preventive material 51 and the soil concrete 61 is blocked by disposing the soil concrete blocking sheet 21 between the groove 43 and the soil concrete 61.
[0024]
Therefore, the soil concrete blocking sheet 21 completely covers the portion of the ground blocking sheet 11 protruding from the soil portion 42 including the inner end 11b from above. In addition, the soil concrete blocking sheet 21 and the ground blocking sheet 11 are in close contact with each other.
[0025]
A sheet material mainly made of a synthetic resin material is used for the ground blocking sheet 11 and the soil concrete blocking sheet 21. Specifically, polyethylene such as EVA (ethylene-vinyl acetate copolymer) and low-density polyethylene, and olefin-based materials represented by polypropylene and ethylene-α olefin copolymer, PVC (polyvinyl chloride), ABS resin, Examples thereof include polystyrene, acrylic resin, and nylon. Such a material is preferably flexible. By providing such flexibility, it is possible to bend the outer end and improve the adhesion to the foundation inner side surface 31a. Moreover, in order to raise an ant-proof effect, you may knead an ant-preventive chemical | medical agent in the base material of these interruption | blocking sheets 11 and 21. FIG. Anti-anticides include pyrethroid-like drugs (silafluophene, etofenprox, etc.), pyrethoid drugs (bifenthrin, cypermestone, deltamethrin, permethrin, permethrin, allethrin, tralomethrin, etc.), carbament drugs (provoxl, phenocarb, sebin, etc.) , Chlornicotyl drugs (imidacloprid, acetapride, clothianisin, etc.), Nitroganillin drugs (dinotefuran, etc.), Organophosphorus insecticides (Hoxime, Tetraclocupinphos, Fenitrothion, Probetanfos etc.), Pyrazole drugs (Fibronyl, etc.), Chlorphenol Drugs (4-promo-2,5-dichlorophenol (BDCP), etc.), phenylpyrrole (chlorfenavir, etc.), Hiba oil, turmeric, capric acid, coconut oil Palm oil, and the like.
[0026]
The termite-proof material 51 is obtained by applying a coating agent in which the above-mentioned termite-preventing agent is mixed in a solvent to the surface of particles having a diameter of about 1 mm to 3 mm, or kneading the termite-preventing agent into the particles. Particle materials include inorganic particles (sand, pumice, zeolite, granite, quartz sand, clay talc, calcium carbonate, bentonite, diatomaceous earth, magnesium sulfate), organic powder particles (wood pieces, bamboo pieces), synthetic resins (polyethylene, polypropylene, EVA (ethylene-vinyl acetate alcohol copolymer), PVC (polyvinyl chloride), nylon, etc.). Examples of the solvent include water, organic solvents (ethanol, methanol, isopropyl alcohol, xylene, toluene, ethyl acetate, normal hexane, benzene, methyl ethyl ketone) and the like.
[0027]
Next, a method for constructing such an ant proof structure will be described with reference to FIGS.
[0028]
Process 1 (refer FIG. 2A) The ground 41 is dug down and the groove part 43 is formed.
[0029]
Process 2 (refer FIG.2 (b)) The interruption | blocking sheet | seat 11 for ground is laid in the groove part 43 and the dirt part 42. FIG. Specifically, the outer end portion 11a of the ground blocking sheet 11 is bent in a direction along the base inner side surface 31a, the outer end 11a is brought into contact with the base inner side surface 31a, and the sheet 11 is laid along the groove portion 43. On the other hand, the inner end 11 b protrudes from the groove 43 and is laid on the dirt portion 42. Then, the ground blocking sheet 11 is fixed to the ground 41 by hitting the nail 71 against the groove 41 in a state where the ground blocking sheet 11 is penetrated.
[0030]
Process 3 (refer FIG.2 (c)) The groove part 43 is filled with the termite-proof material 51. FIG.
[0031]
Process 4 (refer FIG.2 (d)) The part which protrudes the barrier | blocker sheet | seat 21 for earth-concrete from the groove | channel part 43, the ant-proof material 51, the part 42 between earth | grounds, and the earth | ground part 42 among the barrier | blocker sheets 11 for ground It is placed over the entire area under the floor so as to cover it. The outer end portion 21a is brought into contact with the foundation inner side surface 31a in a bent state so that the earth-concrete blocking sheet 21 and the inner end 11b of the ground blocking sheet 11 are in close contact with each other.
[0032]
Process 5 (refer FIG.3 (e)) The soil concrete 61 is installed on the shielding sheet 21 for soil concrete so that the whole lower floor part may be covered. Further, the soil-resistant concrete ant-proof material 25 is applied so as to connect the gap between the upper surface of the soil-concrete 61 and the foundation inner side surface 31a, and the ant-proof material 25 is solidified.
[0033]
In this structure, the ground blocking sheet 11 blocks the contact between the ant protection material 51 and the ground 41, so that moisture and other components contained in the ground 41 adhere to the ant protection material 51 and Decreasing the medicinal effect is suppressed, and the ant-proof effect can be maintained even during long-term use.
[0034]
Further, the interstitial concrete blocking sheet 21 is installed so that the contact between the ant-preventive material 51 and the interstitial concrete 61 is blocked before placing the interstitial concrete 61. Accordingly, components such as moisture and moisture contained in the interstitial concrete 61 during the placement work, in particular, strong alkaline water produced during the curing reaction of the concrete, components contained in the concrete material itself, and the like adhere to the ant protection material 51. In other words, the possibility of a decrease in the medicinal effect of the ant-proofing material 51 is reduced, and the ant-proofing effect can be maintained even after long-term use.
[0035]
Furthermore, since the ground blocking sheet 11 and the soil concrete blocking sheet 21 are installed together, not only the components included in the soil concrete 61 during the placing operation but also the components included in the ground 41 are ant-proofing materials. The possibility of adhering to 51 decreases, and the possibility that the medicinal effect of the termite-proofing material 51 is lowered can be further reduced.
[0036]
The ground blocking sheet 11 has its inner end 11b installed in the inter-soil portion 42, and the soil concrete blocking sheet 21 is installed so as to cover the inner end 11b. Therefore, it is prevented that the component contained in the soil concrete 61 during the placement work reaches the groove portion 43 along the upper surface of the ground blocking sheet 11 and adheres to the termite-proof material 51. Therefore, it is more effective in preventing the medicinal effect of the ant-proof material 51 from being lowered.
[0037]
Since the soil concrete blocking sheet 21 covers the entire area under the floor, the soil concrete 61 is reliably prevented from coming into contact with the ground blocking sheet 11, and the groove portion passes through the upper surface of the ground blocking sheet 11. It is more reliably prevented that the components contained in the interstitial concrete 61 during the placement work enter 43.
[0038]
Since the ground blocking sheet 11 covers only the region extending in a strip shape along the foundation inner side surface 31a, for example, when performing the process after the process 3, the ground blocking sheet already installed in the process 2 The possibility of causing the sheet 11 to be misplaced by stepping on the seat 11 by mistake is reduced. Therefore, the possibility that the termite-proof material 51 and the ground 41 are brought into contact by mistake is reduced. Therefore, the ant-proof material 51 and the ground 41 can be more reliably shut off.
[0039]
In addition, since the ground blocking sheet 11 and the soil concrete blocking sheet 21 are flexible, it is possible to improve adhesion to the foundation inner side surface 31a. Accordingly, it is possible to further improve the blocking effect between the ant-proof material 51 and the soil concrete 61 during the placing work and the blocking effect between the ant-proof material 51 and the ground 41.
[0040]
The outer edge 21 a of the soil concrete barrier sheet 21 is installed with the ground barrier sheet 11 and the soil concrete barrier sheet 21 so as to be in close contact with the foundation inner surface 31 a while being bent in a direction along the foundation inner surface 31. Yes. Therefore, compared with the case where the outer end 11b of the interstitial concrete barrier sheet 21 is not bent and is in contact with the base inner surface 31, even when the sheet is slightly displaced, these barrier sheets 11, 21 and the inner surface 31a of the foundation can be kept in contact with each other. Moreover, the contact area of the blocking sheet 21 for soil concrete and the foundation inner side surface 31a also increases. Therefore, it becomes possible to further improve the blocking effect between the ant-proof material 51 and the soil concrete 61 during the placing work.
[0041]
In addition, since the groove part 43 is provided in the ground 41 along the base inner surface 31a, and this groove part 43 is filled with the ant-proof material 51, the ant-proof material 51 is surely arranged at a fixed position. I can do it.
[0042]
Furthermore, since the groove part 43 is formed in a wedge-shaped shape with a narrower lower side, the groove part 43 is loaded on the contact portion between the ant-proof material 51 and the foundation inner side surface 31a as compared with the case where another shape is adopted. The pressure and the pressure applied to the close contact portion between the ground blocking sheet 11 and the foundation inner surface 31a increase. Therefore, it becomes possible to enhance the ant-proof effect.
[0043]
The ground blocking sheet 11 and the soil concrete blocking sheet 21 are kneaded with an ant-proof material, that is, have an ant-proof effect. Therefore, the ant-proof effect can be further improved.
[0044]
Further, since the nail 71 is installed so as to fix the ground blocking sheet 11 to the ground 41, it is possible to prevent the positional displacement of the ground blocking sheet 11.
[0045]
Hereinafter, in the description of the embodiment different from the embodiment of the present invention, the same components as those in the above embodiment are denoted by the same reference numerals, and the description thereof is omitted.
[0046]
Unlike the above-described embodiment, the underfloor ant structure of this form does not form the groove 43 (see FIG. 1), and is provided with the ant-proof material 51 on the ground 41 portion along the foundation inner side surface 31a. . The ground blocking sheet 11 covers only the ground 41 portion extending in a strip shape along the base inner side surface 31 a and is fixed to the ground 41 with a nail 71.
[0047]
Other Embodiments (1) The outer end portion 11a of the ground blocking sheet 11 does not necessarily have to be bent as in the above embodiment, and the outer end portion 11a only needs to be in close contact with the foundation inner side surface 31a. For example, the structure in which the outer side part 11a contact | abuts to the foundation inner side surface 31a may be sufficient. However, when the outer end portion 11a is bent, the adhesion between the blocking sheet 11 and the base inner surface 31a can be improved, and the blocking effect between the ant-proof material 51 and the soil concrete 61, and the ant-proofing This is more effective in improving the blocking effect between the material 51 and the ground 41. In addition, if it arrange | positions so that the position of the front-end | tip of the said outer end part 11a may become a position higher than the upper surface of the soil concrete 61, it is effective at the point which improves the interruption | blocking effect with the ant-proof material 51 and the soil concrete 61. FIG.
[0048]
(2) The ground blocking sheet 11 may be laid in a state in which the outer end portion 11a is bent in the direction along the foundation inner side surface 31a and is in close contact with the foundation inner side surface 31a.
[0049]
(3) The interstitial concrete blocking sheet 21 does not necessarily need to cover the entire area under the floor. For example, the earth-blocking concrete blocking sheet 21 covers the inner end 11b of the ground blocking sheet 11 but covers only a region slightly inside the inner end 11b, and does not cover the entire area below the floor. May be.
[0050]
(4) The properties of the termite-proof material 51 are not particularly limited to those of inorganic particles or pellets. For example, it is also possible to use a liquid or a paste that is solidified in the shape of the groove 43.
[0051]
(5) In the number of laying the ground blocking sheet 11 and the soil concrete blocking sheet 21, the structure may be divided into a plurality of sheets, or may be installed with only one sheet. There is no particular limitation.
[0052]
【The invention's effect】
As is apparent from the above description, the present invention includes both the soil concrete barrier sheet and the ground barrier sheet, and therefore includes not only the components contained in the soil concrete but also the ground. It is possible to reduce the possibility of the components to be adhered to the ant-proofing material, and to more effectively suppress the medicinal effect of the ant-proofing material.
[Brief description of the drawings]
FIG. 1 is a schematic view showing an embodiment of an underfloor ant structure according to a first embodiment of the present invention.
FIGS. 2A to 2E show the construction procedure of the underfloor ant structure according to the first embodiment.
FIG. 3 is a schematic view showing an embodiment of an underfloor ant structure according to a second embodiment of the present invention.
FIG. 4 is a schematic view showing an embodiment of a conventional underfloor ant structure.
[Explanation of symbols]
11 Ground blocking sheet 11a Outer end (outside edge of ground blocking sheet)
11b Inner edge (inner edge of ground blocking sheet)
21 Blocking sheet for soil concrete 21a Outer end (outside edge of blocking sheet for soil concrete)
31 Foundation 31a Inner side surface 41 Ground 42 Soil part (soil part)
43 Groove 51 Anti-rust material 61 Dust concrete

Claims (1)

An underfloor ant prevention method for constructing an underfloor ant structure in which an underfloor ant-proof material and soil concrete are arranged in the underfloor part surrounded by the foundation of the building,
Forming a groove in the ground along the inner base surface of the lower floor portion;
A ground blocking sheet that blocks contact between the ant-proof material and the ground , and covers a region where the ground blocking sheet extends in a strip shape along the inner surface of the foundation and the ground at the bottom of the groove , and A step of installing the inner end of the ground blocking sheet so that it protrudes from the soil part inside the groove,
Filling the ant barrier material on the ground blocking sheet in the groove;
The interstitial concrete barrier sheet that shields the contact between the ant-preventive material and the interstitial concrete covers the ant-preventive material in the groove and the inner edge of the ground barrier sheet protruding from the groove. Laying in such a manner that the inner end of the ground blocking sheet and the blocking sheet for soil concrete is closely attached,
Placing the interstitial concrete on the interstitial part in a state of covering the interstitial concrete barrier sheet;
An underfloor ant prevention method comprising:

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