JP6867136B2 - Insulated foundation structure - Google Patents

Description

The present invention, the side surface of the frame-shaped outer peripheral foundation supporting the buildings about the adiabatic basis structure covered by heat insulating material.

The following Patent Document 1, for example, is known as a conventional technique relating to the above-mentioned heat insulating foundation structure. As shown in FIG. 10, the heat insulating foundation structure of Patent Document 1 covers the entire surface of the frame-shaped outer peripheral foundation 101 that supports the building and the outer surface 101a (left side surface of FIG. 10) of the outer peripheral foundation 101. It has a heat insulating material 109 attached so as to. The heat insulating material 109 is composed of two upper and lower members, that is, a lower heat insulating material 109a and an upper heat insulating material 109b provided immediately above the lower heat insulating material 109a, and covers the upper surface of the lower heat insulating material 109a and the side surface in the vicinity of the upper surface thereof. A stainless mesh anti-termite sheet 107 is folded back and attached.

Japanese Unexamined Patent Publication No. 2000-110267

According to the heat insulating foundation structure (FIG. 10) disclosed in Patent Document 1, termite-proof sheets 107 prevent termites living in the soil from crawling upward through the inside of the lower heat insulating material 109a. It is possible to prevent termites from feeding damage to wooden parts of buildings such as foundations and pillars.

However, in the technique of Patent Document 1, since the termite-proof sheet 107 is made of stainless steel mesh, when the termite-proof sheet 107's termite-proof performance deteriorates due to corrosion or the like, it invades the lower heat insulating material 109a. There was a concern that termites would sneak through the anti-termite sheet 107 and enter the upper heat insulating material 109b to reach the building. In order to avoid such a problem, it is desirable to replace the anti-termite sheet 107 regularly, but for this replacement work, it is necessary to temporarily remove the heat insulating material 109 (109a, 109b), which complicates the work. ..

The present invention has been made in view of the above circumstances, and an object of the present invention is to more reliably cut off the entry path of termites and to facilitate the filling work of the termite-proof chemical solution performed at the time of maintenance of the heat insulating foundation structure. And.

To solve the above problems, the present invention is a heat insulating foundation structure in which the side surface of the outer peripheral foundation supporting the building is insulated, and the lower heat insulating material attached to the lower side of the side surface of the outer peripheral foundation. And, at least the peripheral end is in contact with the side surface of the outer peripheral foundation and is arranged so as to cover the upper surface of the lower heat insulating material, and the anti-termite sheet is in contact with the upper surface of the anti-termite sheet and the side surface of the outer peripheral foundation. It is provided with an upper heat insulating material attached to the upper side, the outer peripheral foundation is formed so as to rise upward from the ground, a soil slab is placed on the upper surface of the ground, and the upper heat insulating material is formed with the soil slab. The anti-termite sheet is attached to the side surface of the outer peripheral foundation while being sandwiched between the outer peripheral foundation, and the anti-termite sheet is injected with an anti-termite chemical solution injected into the gap between the upper heat insulating material and the outer peripheral foundation during maintenance after construction. It is composed of a material that can be dammed up or a material that can be impregnated with an anti-termite chemical solution, and the upper surface of the lower heat insulating material and the lower surface of the anti-termite sheet are bonded by an adhesive. (Claim 1).

According to the present invention, since the termite-proof sheet is provided so as to cover the upper surface of the lower heat insulating material, the termite-proof sheet prevents termites that have invaded the lower heat insulating material from reaching the upper heat insulating material. Can be done. Further, since the peripheral end of the termite-proof sheet is in contact with the side surface of the outer peripheral foundation, it is possible to surely cut off the termite entry path.

Moreover, when the anti-termite sheet is made of a material capable of blocking the anti-termite liquid, the anti-termite solution is injected into the side surface of the outer peripheral foundation located above the anti-termite sheet to prevent the anti-termite. The ant chemical solution flows down the side surface of the outer peripheral foundation and is received by the ant-proof sheet, and can be accumulated on the upper surface of the ant-proof sheet and can be permeated into the lower end portion of the upper heat insulating material at a high concentration. As a result, the anti-termite chemical solution can be replenished at the intersection of the side surface of the outer peripheral foundation and the anti-termite sheet while the upper heat insulating material and the lower heat insulating material are attached to the outer peripheral foundation. If the anti-termite sheet is made of a material that can be impregnated with the anti-termite solution, the anti-termite solution is injected into the side surface of the outer peripheral foundation located above the anti-termite sheet. The chemical solution flows down the side surface of the outer peripheral foundation and is impregnated in the anti-termite sheet. As a result, the anti-termite sheet can be impregnated with the anti-termite chemical solution while the upper heat insulating material and the lower heat insulating material are attached to the outer peripheral foundation. By providing the anti-termite sheet made of these materials, the work of filling the anti-termite chemical solution at the time of maintenance of the heat insulating foundation structure becomes easy. By periodically replenishing the termite-proof chemical solution in addition to the termite-proof chemical solution, the termite-proof effect at the intersection of the side surface of the outer peripheral foundation and the termite-proof sheet or the termite-proof sheet itself is long. Since it is maintained for a period of time, it is possible to reliably prevent the invasion of termites through the gap between the side surface of the outer peripheral foundation and the anti-termite sheet.

Furthermore, since the lower heat insulating material and the anti-termite sheet are fixed by an adhesive, termites rise upward from the underside of the anti-termite sheet in an attempt to break through the anti-termite sheet and force a force in the direction of the surface of the anti-termite sheet. The peripheral edge of the termite-proof sheet can be kept in contact with the side surface of the outer peripheral foundation even when the ant-proof sheet acts. As a result, the anti-termite chemical solution can be transmitted to the side surface of the outer peripheral foundation and reliably received by the anti-termite sheet at the time of maintenance, and the maintainability of the anti-termite performance can be further improved. Moreover, by fixing the upper surface of the lower heat insulating material and the anti-termite sheet with an adhesive, the anti-termite sheet is less likely to be misaligned when the anti-termite sheet is applied to the upper surface of the lower heat insulating material. Easy to place.

In the above configuration, the adhesive is preferably composed of a material having an anti-termite function ( claim 2 ).

According to the above configuration, since the adhesive has anti-termite performance, it is possible to more reliably prevent termites from invading the gap between the lower heat insulating material and the anti-termite sheet.

The heat insulating foundation structure according to another aspect of the present invention is a heat insulating foundation structure in which the side surface of the outer peripheral foundation supporting the building is insulated, and the lower heat insulating material attached to the lower side of the side surface of the outer peripheral foundation. , At least the peripheral end is in contact with the side surface of the outer peripheral foundation and is arranged so as to cover the upper surface of the lower heat insulating material, and the anti-termite sheet is in contact with the upper surface of the anti-termite sheet and the upper side of the side surface of the outer peripheral foundation. The anti-termite sheet is a material capable of blocking the anti-termite liquid injected into the gap between the upper heat insulating material and the outer peripheral foundation at the time of maintenance after construction. The upper heat insulating material is composed of a material capable of impregnating the anti-termite liquid, and the upper heat insulating material can be introduced along the side surface of the outer peripheral foundation while the upper heat insulating material is attached to the outer peripheral foundation. The height position of the upper surface of the material is set to be lower than the upper surface of the outer peripheral foundation ( claim 3 ).

According to the above configuration, it is possible to secure a gap for injecting the anti-termite solution from above the upper surface of the upper heat insulating material to the side surface of the outer peripheral foundation. By injecting the anti-termite solution into the side surface of the outer peripheral foundation through this gap, the anti-termite solution flows down the side surface of the outer peripheral foundation and is received by the anti-termite sheet, and is collected on the upper surface of the anti-termite sheet and of the upper heat insulating material. The lower end can be impregnated with the anti-termite solution at a high concentration, or the anti-termite sheet can be impregnated with the anti-termite solution. As a result, the anti-termite chemical solution can be replenished at the intersection of the side surface of the outer peripheral foundation and the anti-termite sheet or the anti-termite sheet itself while the upper heat insulating material and the lower heat insulating material are attached to the outer peripheral foundation. It is easy to fill the heat insulating foundation structure with the anti-termite chemical solution.

The heat insulating foundation structure according to still another aspect of the present invention is a heat insulating foundation structure in which the side surface of the outer peripheral foundation supporting the building is insulated, and the lower heat insulating material attached to the lower side of the side surface of the outer peripheral foundation. And, at least the peripheral end is in contact with the side surface of the outer peripheral foundation and is arranged so as to cover the upper surface of the lower heat insulating material, and the anti-termite sheet is in contact with the upper surface of the anti-termite sheet and the side surface of the outer peripheral foundation. The anti-termite sheet is provided with an upper heat insulating material attached to the upper side, and the anti-termite sheet is a material capable of blocking the anti-termite liquid injected into the gap between the upper heat insulating material and the outer peripheral foundation during maintenance after construction. Alternatively, a ground made of a material capable of being impregnated with an anti-termite chemical solution, which is in contact with the side surface of the lower heat insulating material and which is raised to substantially the same height as the upper surface of the lower heat insulating material is further provided, and the anti-termite sheet is provided. Is provided so as to cover the upper surface of the lower heat insulating material and the upper surface of the ground ( claim 4 ).

According to the above configuration, since the upper surfaces of the lower heat insulating material and the ground are substantially the same height, it is easy to arrange one end of the anti-termite sheet so as to be in contact with the lower heat insulating material. Further, when a gap is formed between the upper surface of the lower heat insulating material and the upper surface of the ground due to a slight difference, the gap may serve as an entry path for ants. According to the configuration, since no gap is formed between the upper surface of the lower heat insulating material and the upper surface of the ground, it is possible to more reliably cut off the entry path of ants.

According to the present invention, it is possible to provide a heat-insulating foundation structure to further facilitate the refilling operation of the anti-termite chemical to be performed during maintenance of the heat insulating substructure with break off approach route of termite more reliably.

It is a top view which shows the heat insulation basic structure which concerns on embodiment of this invention. It is sectional drawing along the line II-II of FIG. It is explanatory drawing (the 1) for demonstrating the construction method of the said insulation foundation structure. It is explanatory drawing (the 2) of the said construction method. It is explanatory drawing (the 3) of the said construction method. It is explanatory drawing (the 4) of the said construction method. It is explanatory drawing (the 5) of the said construction method. It is a figure for demonstrating maintenance work performed on the said insulation foundation structure. It is a figure after the maintenance work of FIG. It is a figure for demonstrating the conventional example of a heat insulation foundation structure.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. It should be noted that the following embodiments are examples embodying the present invention and do not limit the technical scope of the present invention.

(1) Overall Description of Insulated Foundation Structure FIG. 1 is a plan view showing a floor structure of a building according to an embodiment of the present invention, and FIG. 2 is a plan view in which the entrance floor 5, the rising stile 6 and the base T are removed from FIG. -II is a cross-sectional view. The heat-insulating foundation structure of this embodiment shown in these figures is applied to the entrance on the first floor of a building such as a house, and the outer peripheral foundation concrete 1 placed in a frame shape to support the building and the entrance. The soil slab 2 placed so as to cover the upper surfaces of the grounds E1 to E3 below, the boundary foundation concrete 3 placed so as to extend parallel to the entrance door 9 separating the indoor S1 and the outdoor S2, and the soil slab. It is provided with an upper layer member 4 laid on the upper surface of 2. The upper layer member 4 on the outdoor S2 side of the entrance door 9 is the entrance porch, and the upper layer member 4 on the indoor S1 side of the entrance door 9 is the entrance entrance (that is, a place where shoes and the like are removed and placed).

The outer peripheral foundation concrete 1 has a plurality of frame sides 1A to 1E that are combined so as to be orthogonal to each other in the plan view shown in FIG. Of these, the three frame sides 1A, 1B, and 1C surrounding the circumference of the soil slab 2 have a U-shaped plan view open to the outdoor S2 side as a whole, and the U-shaped portion thereof. The position corresponding to the open surface is the entrance and exit of the building.

As shown in FIG. 2, the outer peripheral foundation concrete 1 is a so-called cloth foundation having an inverted T-shape in cross section, which is erected between the ground E1 on the indoor S1 side and the ground E3 on the underfloor space S3 side. , The outer peripheral foundation 11 formed so as to rise vertically upward from E3, and the footing 12 formed so as to project horizontally from the lower end of the outer peripheral foundation 11 embedded in the grounds E1 and E3. There is. On the upper surface of the outer peripheral foundation 11, a base T made of wooden square timber or the like constituting the skeleton of the floor of the building is fixed via anchor bolts or the like (not shown). A rising stile 6 made of wooden square timber or the like is attached to the side surface of the base T on the outdoor S2 side, and the entrance floor 5 extends from the upper surface and the side surface of the base T to the indoor S1 side. The upper surfaces of the entrance floor 5 and the rising stile 6 are flush with each other, and are positioned one step higher than the upper surface of the upper layer member 4 of the entrance rising entrance. The upper surface of the entrance floor 5 corresponds to the entrance corridor where the shoes and the like inside the building are taken off, and the underfloor space S3 extends below the entrance floor 5.

The height positions of the various boards E1 to E3 are individually set according to the parts of the indoor S1, the outdoor S2, and the underfloor space S3, and the ground E3 of the underfloor space S3 is intended to secure the underfloor space S3 as widely as possible. The height is set to be the lowest, and the ground E1 of the indoor S1 is set one step higher than the height of the ground E2 of the outdoor S2.

As shown in FIG. 2, the soil slab 2 is composed of an underfloor side soil slab 23 (so-called underfloor soil) covering the upper surface of the ground E3 in the underfloor space S3 rather than the outer peripheral foundation 11, and the outer peripheral foundation concrete 1 and the boundary foundation concrete 3. The part between them, that is, the indoor soil slab 21 (so-called entrance soil) that covers the upper surface of the ground E1 on the indoor S1 side, and the outdoor soil slab 22 (so-called entrance soil slab 22) that covers the upper surface of the ground E2 on the outdoor S2 side of the boundary foundation concrete 3. It has a pouch soil floor). The thickness of the soil slab 2 is not significantly changed depending on each part, and is substantially the same thickness.

The height of the upper surface of the indoor side soil slab 21 is set at the same position as the height of the upper surface of the boundary foundation concrete 3 described later, and the height of the upper surface of the outdoor side soil slab 22 is the height of the indoor side soil slab 21 and the boundary. It is set lower than the upper surface of the foundation concrete 3. In other words, the height of the upper surface of the indoor side soil slab 21 is set to a position one step higher than the outdoor side soil slab 22.

The upper layer member 4 is a member constituting the floor surface of the entrance, and is a mortar layer 41 coated so as to directly cover the upper surface of the soil slabs 21 and 22 on the indoor side and the outdoor side and the upper side of the outer surface 11b of the outer peripheral foundation 11. It has a pavement material 42 arranged and fixed on the upper surface of the mortar layer 41. The pavement material 42 can be composed of, for example, a plurality of stone tiles (or ceramic plates, bricks, etc.) arranged in a certain pattern.

As shown in FIG. 2, the entrance floor 5 is composed of an underfloor heat insulating material 51 for blocking cold air from under the floor and a decorative material 52 for covering the surface of the underfloor heat insulating material 51. The underfloor heat insulating material 51 is made of a resin material having excellent heat insulating properties such as expanded polystyrene and urethane foam, and has a predetermined thickness in a direction orthogonal to the upper surface of the outer peripheral foundation 11. The decorative material 52 is composed of a plate-shaped member having a smooth surface, and the upper surface of the decorative material 52 is set at the same height position as the upper surface of the rising stile 6.

A heat insulating material 7a is attached to the side surface of the outer peripheral foundation 11 on the underfloor space S3 side (hereinafter, also referred to as "inner side surface 11a") via, for example, an adhesive, and the side opposite to the inner side surface 11a of the outer peripheral foundation 11. The heat insulating material 7b is similarly attached to the side surface (hereinafter, also referred to as “outer surface 11b”).

The heat insulating materials 7a and 7b are made of the same material as the underfloor heat insulating material 51, and are plate-shaped members having a predetermined thickness in a direction orthogonal to the side surfaces 11a and 11b of the outer peripheral foundation 11. A plurality of the heat insulating materials 7a and 7b are attached side by side (in the direction orthogonal to the paper surface in FIG. 2) side by side on the side surfaces 11a and 11b of the outer peripheral foundation 11 according to the area thereof. The heat insulating material 7a is divided into upper and lower parts of the upper heat insulating material 72a and the lower heat insulating material 71a via an anti-termite sheet 8 described later.

The lower heat insulating material 71a is attached to the inner side surface 11a of the outer peripheral foundation 11 in a state of being sandwiched between the ground E3 and the outer peripheral foundation 11. Further, the upper heat insulating material 72a is attached to the inner side surface 11a of the outer peripheral foundation 11 with its lower side sandwiched between the underfloor side soil slab 23 and the outer peripheral foundation 11. When an adhesive is used to fix the heat insulating materials 71a and 72a, it is preferable to use an adhesive in which an anti-termite agent is kneaded. The specific examples of the chemicals that can be contained in the adhesive are basically the same as the chemicals exemplified in the description of the anti-termite chemical solution described later, and thus the description thereof will be omitted here.

The height position of the upper surface of the upper heat insulating material 72a is slightly lower than the upper surface of the outer peripheral foundation 11, and there is a slight gap between the entrance floor 5 and the upper heat insulating material 72a so that an injection needle can be inserted. Is secured.

Similar to the heat insulating material 7a, the heat insulating material 7b attached to the outer surface 11b side of the outer peripheral foundation 11 is also divided into upper and lower parts of the upper heat insulating material 72b and the lower heat insulating material 71b via the anti-termite sheet 8. The lower heat insulating material 71b is attached to the outer surface 11b of the outer peripheral foundation 11 in a state of being sandwiched between the ground E1 and the outer peripheral foundation 11. Further, the upper heat insulating material 72b is attached to the outer surface 11b of the outer peripheral foundation 11 in a state of being sandwiched between the indoor side soil slab 21 and the outer peripheral foundation 11. The upper surface of the upper heat insulating material 72b has substantially the same height as the indoor side soil slab 21, and is covered with the mortar layer 41 together with the indoor side soil slab 21.

As shown in FIG. 1, the boundary foundation concrete 3 is erected at a position corresponding to the entrance / exit of the building, that is, between the ground E1 on the indoor S1 side and the ground E2 on the outdoor S2 side, and the outer peripheral foundation concrete 1 Two frame sides 1B and 1C facing each other are connected to each other. As shown in FIG. 2, the boundary foundation concrete 3 is a so-called cloth foundation having an inverted T-shape in cross section similar to the outer peripheral foundation concrete 1, and the boundary foundation 31 formed so as to rise vertically upward from the grounds E1 and E2. And a footing 32 formed so as to project horizontally from the lower end of the boundary foundation 31 buried in the grounds E1 and E2. The entrance door 9 (FIGS. 1 and 2) is installed on the upper surface of the outdoor S2 side of the boundary foundation concrete 3. A boundary side heat insulating material 7c is attached to the inner side surface 31a of the boundary foundation 31.

The boundary side heat insulating material 7c is made of the same material as the heat insulating materials 7a and 7b, and like the heat insulating materials 7a and 7b, the upper heat insulating material 72c and the lower heat insulating material 71c are connected to each other via the anti-termite sheet 8. It is divided into upper and lower parts, each of which is fixed to the inner side surface 31a of the boundary foundation 31 via, for example, an adhesive 73. The upper surface of the upper heat insulating material 72c is covered with the mortar layer 41.

Between the grounds E1 to E3 and the soil slab 2, termite-proof sheets 8 are laid to prevent termites from invading above the grounds E1 to E3. The ant-proof sheet 8 sandwiched between the ground E3 and the underfloor soil slab 23 extends so as to cover a wider area than the upper surface of the underfloor soil slab 23, and a part thereof protrudes from the outside of the underfloor soil slab 23. The upper part of the lower heat insulating material 71a is covered, and the peripheral end of the anti-termite sheet 8 is in contact with the inner side surface 11a of the outer peripheral foundation 11. The peripheral end of the anti-termite sheet 8 is fixed to the upper surface of the lower heat insulating material 71a via, for example, an adhesive.

The anti-termite sheet 8 sandwiched between the indoor side soil slab 21 and the ground E1 protrudes from the outside of the indoor side soil slab 21 and covers the upper parts of the lower heat insulating materials 71b and 71c, and the peripheral edge of the anti-termite sheet 8 is the outer peripheral foundation. It is in contact with the outer surface 11b of 11 and the inner surface 31a of the boundary foundation 31, respectively. The peripheral end of the anti-termite sheet 8 is fixed to the upper surfaces of the lower heat insulating materials 71b and 71c via, for example, an adhesive.

The anti-termite sheet 8 may be of any type as long as it is a sheet-like material having an anti-termite function and capable of blocking the anti-termite chemical solution. For example, an anti-termite chemical is kneaded into the sheet. A film or plate made of a rolled resin molded body can be used as the anti-termite sheet 8. Examples of the resin molded body used here include polyethylene resin, polypropylene resin, ethylene-vinyl acetate copolymer (EVA) resin, polyvinyl chloride resin, and polyethylene terephthalate resin.

(2) Construction method Next, a method of constructing the above-mentioned heat insulating foundation structure will be described with reference to FIGS. 3 to 7 and the like. As a premise of this explanation, the outer peripheral foundation concrete 1 and the boundary foundation concrete 3 have already been placed between the ground E1 and the ground E3 and between the ground E1 and the ground E2, and the side surface 11a of the outer peripheral foundation 11 , 11b and the lower heat insulating materials 71a to 71c are attached to the lower side of the inner side surface 31a of the boundary foundation 31 via an adhesive, respectively.

The lower heat insulating material 71b, the lower heat insulating material 71c, and the ground E1 have substantially the same upper surface height as shown in FIG. 3, and the lower heat insulating material 71a and the ground E3 have substantially the same upper surface height, respectively. ing.

As a work starting from the above state, first, as shown in FIG. 4, an adhesive 73 for fixing the anti-termite sheet 8 is applied to the upper surfaces of the lower heat insulating materials 71a to 71c.

Next, as shown in FIG. 5, an anti-termite sheet 8 is laid so as to cover the upper surfaces of the lower heat insulating materials 71a to 71c and the grounds E1 and E3, and a predetermined range on the outdoor S2 side adjacent to the boundary foundation 31. Anti-termite sheets 8 are laid on the upper surface of the ground E2. At this time, the peripheral end portion of the anti-termite sheet 8 is fixed to the upper surfaces of the lower heat insulating materials 71a to 71c via the adhesive 73. When laying each anti-termite sheet 8, the peripheral end of the anti-termite sheet 8 is inside the side surfaces 11a and 11b of the outer peripheral foundation 11 and the boundary foundation 31 in order to completely block the entry path of termites from the grounds E1 to E3. It is arranged so as to be in contact with the side surface 31a.

The number of anti-termite sheets 8 used in the laying work here is not limited to one. When a plurality of anti-termite sheets 8 are used, for example, a strip-shaped anti-termite sheet 8 prepared to cover only a portion relatively close to the outer peripheral foundation 11 and the boundary foundation 31 and the central portion of the grounds E1 to E3 are used. It is preferable to lay the rectangular anti-termite sheet 8 prepared to cover a relatively wide area including the ant-proof sheet 8 while partially superimposing the sheet.

Next, as shown in FIG. 5, upper heat insulating materials 72a, 72b, 72c are attached to the side surfaces 11a, 11b of the outer peripheral foundation 11 and the inner side surface 31a of the boundary foundation 31, respectively. That is, by fixing the back surfaces of the upper heat insulating materials 72a and 72b to the side surfaces 11a and 11b of the outer peripheral foundation 11 via an adhesive or the like, the upper side of the side surfaces 11a and 11b of the outer peripheral foundation 11 and the peripheral end of the anti-termite sheet 8 The upper heat insulating materials 72a and 72b are attached so as to cover the above. Similarly, by fixing the back surface of the upper heat insulating material 72c to the inner side surface 31a of the boundary foundation 31 via an adhesive or the like, the upper side of the inner surface 31a of the boundary foundation 31 and the peripheral end of the anti-termite sheet 8 are covered. The upper heat insulating material 72c is attached as described above. The adhesive used for fixing the upper heat insulating materials 72a to 72c is the same as the adhesive used for fixing the lower heat insulating materials 71a to 71c.

Next, as shown in FIG. 6, each soil slab 21 to 23 is constructed so as to cover the upper surface of the ant-proof sheet 8 on the underfloor space S3 side, the indoor S1 side, and the outdoor S2 side. As a result, the anti-termite sheets 8 are sandwiched and fixed by the grounds E1 to E3 and the soil slabs 21 to 23. At this time, the upper surface of the indoor side soil slab 21 is adjusted to be substantially the same height as the upper surface of the upper heat insulating materials 72b and 72c, and the upper surface of the outdoor side soil slab 22 is higher than the upper surface of the boundary foundation 31. Adjusted to be low. The upper heat insulating materials 72a to 72c are more firmly fixed by being sandwiched between the soil slabs 21 to 23 and the outer peripheral foundation 11 and the boundary foundation 31.

Next, the upper layer member 4 is laid so as to completely cover the upper surface of the indoor side soil slab 21, the outdoor side soil slab 22, the boundary foundation concrete 3, and the outer surface 11b of the outer peripheral foundation 11. That is, as shown in FIG. 7, the upper surfaces of the indoor side soil slab 21 and the outdoor side soil slab 22, the upper surfaces of the boundary foundation 31 and the upper heat insulating material 72a, and the exposed portion of the outer surface 11b of the outer peripheral foundation 11 are both covered. The mortar layer 41 is applied as described above. Then, the upper layer member 4 is formed by disposing the pavement material 42 on the upper surface of the mortar layer 41.

Next, as shown in FIG. 2, a base T such as a wooden square timber and a rising stile 6 are assembled to the upper surface of the outer peripheral foundation concrete 1 via an anchor bolt or the like (not shown), and the entrance floor extending to the side surface of the base T on the indoor S1 side. Install 5. Finally, the entrance door 9 is attached between the indoor S1 and the outdoor S2 at the entrance. As described above, the heat insulating foundation structure of the present embodiment shown in FIG. 2 is constructed.

(3) Maintenance work The work procedure for performing maintenance to maintain the anti-termite effect on the heat insulating foundation structure constructed by the above method will be described.

Termites in the soil basically have a range of action in the dark, so when trying to invade a building, for example, they pass through the gap between the inner side surface 11a of the outer peripheral foundation 11 and the heat insulating material 7a, or the outer peripheral foundation 11 It tries to crawl upward through the gap between the outer surface 11b and the heat insulating material 7b. In the structure of the present embodiment, since the side surfaces 11a and 11b of the outer peripheral foundation 11 are in contact with the peripheral end of the termite-proof sheet 8, the termite-proof sheet 8 basically prevents the termites from crawling up. However, the peripheral edge of the termite-proof sheet 8 is separated from the side surfaces 11a and 11b of the outer peripheral foundation 11 when the termite-proof effect at the peripheral edge of the termite-proof sheet 8 is weakened due to aged deterioration or when the termite-proof sheet 8 shrinks due to drying. If they are equal, the termites will pass through the gap between the side surfaces 11a and 11b of the outer peripheral foundation 11 and the ant-proof sheet 8 and crawl further upward, causing damage (eating damage) that the building is eaten by the termites. It is possible. In order to suppress such damage caused by termites, it is preferable to improve the termite-proof performance at a position where the side surface of the outer peripheral foundation 11 and the peripheral end of the termite-proof sheet 8 are in contact with each other.

In the present embodiment, the work of introducing the anti-termite chemical solution can be performed from the surface side of the heat insulating materials 7a and 7b while the heat insulating materials 7a and 7b are attached to the outer peripheral foundation 11. An example thereof is shown in FIG. FIG. 8 illustrates a case where a syringe 20 is used to introduce an anti-termite chemical solution into a portion where the side surfaces 11a and 11b of the outer peripheral foundation 11 and the anti-termite sheet 8 intersect.

In the example of FIG. 8, when replenishing the portion where the inner side surface 11a of the outer peripheral foundation 11 on the underfloor space S3 side and the anti-termite sheet 8 intersect with the anti-termite chemical solution, the worker fills the underfloor space S3 of the building. By entering and pushing the piston of the syringe 20 in a state where the needle tip of the syringe 20 is passed through the gap between the entrance floor 5 and the upper heat insulating material 72a and is in contact with the inner side surface 11a of the outer peripheral foundation 11, the ant-proof inside the syringe 20 is prevented. The chemical solution is injected into the inner side surface 11a of the outer peripheral foundation 11. The anti-termite chemical solution injected into the inner side surface 11a of the outer peripheral foundation 11 flows down along the inner surface 11a of the outer peripheral foundation 11, is received by the anti-termite sheet 8, and accumulates on the upper surface of the anti-termite sheet 8. As a result, a permeation region 30a in which the anti-termite liquid is permeated at a high concentration is formed at the lower end of the upper heat insulating material 72a.

Further, when replenishing the anti-termite chemical solution to the portion where the outer surface 11b of the outer peripheral foundation 11 and the anti-termite sheet 8 intersect, the needle tip of the syringe 20 is passed between the ascending stile 6 and the mortar layer 41 from the lower surface of the ascending stile 6. An anti-termite chemical is injected into the outer surface 11b of the outer peripheral foundation 11. The anti-termite chemical solution injected into the outer surface 11b of the outer peripheral foundation 11 flows down along the outer surface 11b of the outer peripheral foundation 11, is received by the anti-termite sheet 8, and accumulates on the upper surface of the anti-termite sheet 8. As a result, a permeation region 30a in which the anti-termite liquid is permeated at a high concentration is formed at the lower end of the upper heat insulating material 72b.

The anti-termite chemical solution is a drug having a function of preventing the invasion of white ants (anti-termite function) and fluidity, and the drug is not particularly limited as long as it has an anti-termite function. Drugs (silafluofen, etofenprox, etc.), pyrethroid drugs (bifenthrin, cypermethon, deltamesrin, permethrin, permethrin, allethrin, traromesrin, etc.), carbament drugs (proboxul, fenocarb, sevin, etc.), chlornicotyl drugs (imidacloprid, acetacloprid, etc.) Crotianicin, etc.), nitroganylin drugs (dinotefuran, etc.), organophosphorus insecticides (hoxim, tetraclocupinphos, fenitrothion, probetanphos, etc.), pyrethroids (fibronyl, etc.), chlorphenol drugs (4-promo-2, etc.) 5-Dichlorphenol (BDCP), etc.), phenylpyreth (chlorphenavir, etc.), hiba oil, turmeric, capric acid, palm oil, palm oil, etc. can be used as the above-mentioned chemicals.

(4) Action and Effect As described above, in the above embodiment, the heat insulating foundation in which the side surfaces 11a and 11b of the outer peripheral foundation 11 of the frame-shaped outer peripheral foundation concrete 1 supporting the building are covered with the heat insulating materials 7a and 7b. In the structure, the following characteristic structure was adopted.

That is, in the above embodiment, the lower heat insulating materials 71a and 71b attached to the lower side of the side surfaces 11a and 11b of the outer peripheral foundation 11 and at least the peripheral end are in contact with the side surfaces 11a and 11b of the outer peripheral foundation 11 and the lower heat insulating material is provided. The termite-proof sheet 8 arranged so as to cover the upper surfaces of the materials 71a and 71b, and the upper heat insulating materials 72a and 72b which are in contact with the upper surface of the termite-proof sheet 8 and are attached to the upper side of the side surfaces 11a and 11b of the outer peripheral foundation 11. Therefore, the termite-proof sheet 8 can prevent termites that have invaded the lower heat insulating materials 71a and 71b from reaching the upper heat insulating materials 72a and 72b. Further, since the peripheral end of the termite-proof sheet 8 is in contact with the side surface of the outer peripheral foundation 11, it is possible to surely cut off the entry route of termites.

Moreover, since the anti-termite sheet 8 is made of a material capable of blocking the anti-termite chemical solution injected into the gap between the upper heat insulating materials 72a and 72b and the outer peripheral foundation 11 during maintenance after construction, the anti-termite sheet By injecting the anti-termite solution into the side surfaces 11a and 11b of the outer peripheral foundation 11 located above 8, the anti-termite solution flows down along the side surfaces 11a and 11b of the outer peripheral foundation 11 and is received by the anti-termite sheet 8. The anti-termite liquid can be accumulated in the upper surface of the anti-termite sheet 8 and the anti-termite chemical solution can be permeated into the lower ends of the upper heat insulating materials 72a and 72b at a high concentration. As a result, while the upper heat insulating materials 72a and 72b and the lower heat insulating materials 71a and 71b are attached to the outer peripheral foundation 11, the anti-termite chemical solution is applied to the portion where the side surfaces 11a and 11b of the outer peripheral foundation 11 and the anti-termite sheet 8 intersect. Since it can be replenished, the anti-termite chemical solution can be easily replenished after the upper heat insulating materials 72a and 72b are attached.

Further, since the upper surfaces of the lower heat insulating materials 71a and 71b and the lower surface of the anti-termite sheet 8 are adhered by the adhesive 73, the termites try to break through the anti-termite sheet 8 from the lower side of the anti-termite sheet 8 and face upward. The peripheral end of the termite-proof sheet 8 can be kept in contact with the side surfaces 11a and 11b of the outer peripheral foundation 11 even when a force is applied to the surface of the termite-proof sheet 8. As a result, the anti-termite chemical solution can be transmitted to the side surfaces 11a and 11b of the outer peripheral foundation 11 and reliably received by the anti-termite sheet 8, and the maintainability of the anti-termite performance can be further improved. Moreover, by fixing the upper surfaces of the lower heat insulating materials 71a and 71b and the anti-termite sheet 8 with the adhesive 73, the anti-termite sheet 8 can be attached when the anti-termite sheet 8 is applied to the upper surfaces of the lower heat insulating materials 71a and 71b. Since it is difficult for the position to shift, it is easy to arrange the anti-termite sheet 8. Moreover, since the adhesive 73 is made of a material having an anti-termite function, it is possible to more reliably prevent termites from entering the gap between the lower heat insulating materials 71a and 71b and the anti-termite sheet 8. ..

Further, in the above embodiment, the height of the upper surface of the upper heat insulating materials 72a and 72b so that the anti-termite chemical solution can be introduced along the side surface of the outer peripheral foundation 11 while the upper heat insulating materials 72a and 72b are attached to the outer peripheral foundation 11. Since the position is lower than the upper surface of the outer peripheral foundation 11, a slight gap is formed between the upper surfaces of the upper heat insulating materials 72a and 72b and the entrance floor 5 so that the needle tip of the injection needle can be inserted. By inserting the needle tip of the injection needle into this gap, the anti-termite chemical solution can be injected into the side surfaces 11a and 11b of the outer peripheral foundation 11. The anti-termite chemical solution injected in this way flows down along the side surfaces 11a and 11b of the outer peripheral foundation 11 and is received by the anti-termite sheet 8, collects on the upper surface of the anti-termite sheet 8 and lower ends of the upper heat insulating materials 72a and 72b. The ant-proof chemical solution can be permeated into the part at a high concentration. As a result, while the upper heat insulating materials 72a and 72b and the lower heat insulating materials 71a and 71b are attached to the outer peripheral foundation 11, the anti-termite chemical solution is applied to the portion where the side surfaces 11a and 11b of the outer peripheral foundation 11 and the anti-termite sheet 8 intersect. Since it can be replenished, it is easy to replenish the anti-termite chemical solution to the heat insulating foundation structure.

In the above embodiment, the grounds E1 to E3 which are in contact with the side surfaces of the lower heat insulating materials 71a and 71b and are raised to substantially the same height as the upper surfaces of the lower heat insulating materials 71a and 71b are further provided, and the ant-proof sheet 8 is on the lower side. Since it is provided so as to cover the upper surfaces of the heat insulating materials 71a and 71b and the upper surfaces of the grounds E1 to E3, it becomes easy to arrange one end of the anti-termite sheet 8 so as to be in contact with the lower heat insulating materials 71a and 71b. The dovetail sheet 8 can be installed more easily. Further, since no gap is formed between the upper surfaces of the lower heat insulating materials 71a and 71b and the upper surface of the ground E1, the upper surfaces of the lower heat insulating materials 71a and 71b and the upper surface of the ground E1 are slightly different from each other. Compared to the case where a gap is formed between the ants, it is possible to more reliably cut off the entry path of ants.

As in the above embodiment, after the upper heat insulating materials 72a and 72b are attached, the anti-termite solution is injected into the side surfaces 11a and 11b of the outer peripheral foundation 11, so that the anti-termite solution is transmitted through the side surfaces 11a and 11b of the outer peripheral foundation 11. It flows down and is received by the anti-termite sheet 8, and can be accumulated on the upper surface of the anti-termite sheet 8 and the anti-termite chemical solution can be permeated into the lower ends of the upper heat insulating materials 72a and 72b at a high concentration.

When the anti-termite effect of the anti-termite solution is reduced, an additional anti-termite solution is supplied to the side surfaces 11a and 11b of the outer peripheral foundation 11 with respect to the anti-termite solution arranged at the above-mentioned location to insulate the upper side. The anti-termite chemical solution can be easily replenished while the materials 72a and 72b and the lower heat insulating materials 71a and 71b are attached to the side surfaces 11a and 11b of the outer peripheral foundation 11. As a result, it is not necessary to bother to remove the heat insulating materials 7a and 7b in order to replenish the anti-termite chemical solution for maintenance, and the workability of maintenance can be remarkably improved.

Further, by periodically replenishing the termite-proof chemical solution with an additional termite-proof chemical solution, the termite-proof effect at the portion where the side surfaces 11a and 11b of the outer peripheral foundation 11 and the termite-proof sheet 8 intersect is maintained for a long period of time. Since it is maintained over a period of time, it is possible to reliably prevent termites from entering through the gap between the side surfaces 11a and 11b of the outer peripheral foundation 11 and the anti-termite sheet 8.

(Modification example)
In the above embodiment, the case where the ant-proof sheet 8 made of a material capable of blocking the ant-proof chemical solution is used has been described, but the ant-proof sheet 8 is not limited to the ant-proof sheet 8 made of such a material. May be composed of a material that can be impregnated with an anti-termite solution. Here, as a specific example of the material that can be impregnated with the anti-termite chemical solution, a non-woven fabric or a woven fabric made of a resin molded body such as a polyethylene resin, a polypropylene resin, an EVA copolymer resin, a polyvinyl chloride resin, or a polyethylene terephthalate resin. Cloth can be mentioned. Such a non-woven fabric or a woven fabric impregnated with a chemical solution exhibiting anti-termite performance may be used. By constructing the anti-termite sheet 8 with such a material, when the anti-termite liquid is injected into the side surfaces 11a and 11b of the outer peripheral foundation 11 located above the anti-termite sheet 8, the anti-termite liquid is applied to the outer peripheral foundation 11. It flows down along the side surfaces 11a and 11b of the ant-proof sheet 8 and is impregnated with the ant-proof sheet 8. As a result, the anti-termite sheet 8 can be impregnated with the anti-termite chemical solution while the upper heat insulating materials 72a and 72b and the lower heat insulating materials 71a and 71b are attached to the outer peripheral foundation 11, so that the anti-termite chemical solution can be impregnated during maintenance of the heat insulating foundation structure. The work of filling the ant chemical solution becomes easy.

In the above embodiment, a guide means may be provided to guide the anti-termite chemical solution injected into the side surfaces 11a and 11b of the outer peripheral foundation 11 to the anti-termite sheet 8. When the anti-termite sheet 8 is made of a material capable of impregnating with an anti-termite chemical solution, as a guiding means, a guide hole penetrating the upper heat insulating materials 72a and 72b in the thickness direction and the upper heat insulating material 72a, A guide groove that extends from the outlet of the guide hole that opens on the back surface of the 72b along the back surface of the upper heat insulating materials 72a and 72b and reaches the upper surface of the anti-termite sheet 8 can be used. According to this configuration, the anti-termite solution is surely introduced toward the anti-termite sheet 8 by a simple method such as injecting the anti-termite solution into the guide holes and the guide grooves provided in the upper heat insulating materials 72a and 72b. Can be done. Moreover, since the anti-termite sheet 8 is made of a material that can be impregnated with the anti-termite chemical solution, the anti-termite chemical solution that has reached the anti-termite sheet 8 is diffused in the plane of the anti-termite sheet 8. There is.

The guiding means may be a woven fabric or a non-woven fabric attached so as to cover at least a part of the back surface of the upper heat insulating materials 72a and 72b. Here, the back surfaces of the upper heat insulating materials 72a and 72b mean the surfaces of the upper heat insulating materials 72a and 72b that are attached to the side surfaces 11a and 11b of the outer peripheral foundation 11. By injecting the anti-termite solution into the non-woven fabric attached to the back surfaces of the upper heat insulating materials 72a and 72b, the anti-termite solution can be reliably introduced into the anti-termite sheet 8 through the non-woven fabric. Further, the guide means may be a combination of a guide hole penetrating the upper heat insulating materials 72a and 72b in the thickness direction and a non-woven fabric attached to the back surface of the upper heat insulating materials 72a and 72b. As a result, the anti-termite chemical solution injected into the guide hole is impregnated into the non-woven fabric, and the anti-termite chemical solution can be reliably introduced into the anti-termite sheet 8 through the non-woven fabric. In this case, the guide groove provided on the back surface side of the upper heat insulating materials 72a and 72b can be omitted.

When the guide means is provided, it is not necessary to set the height position of the upper surfaces of the upper heat insulating materials 72a and 72b below the upper surface of the outer peripheral foundation 11 as in the above embodiment, and the upper heat insulating materials 72a and 72b and the outer peripheral foundation are provided. The height position of the upper surface of 11 can be the same.

In the above embodiment, the anti-termite solution is high on the anti-termite sheet 8 by injecting the anti-termite solution into the side surfaces 11a and 11b of the outer peripheral foundation 11 from the gap between the upper surface of the upper heat insulating material 72a and the entrance floor 5. Although the case of forming the permeation region 30a filled with the concentration has been described, the supply route of the anti-termite chemical solution is not limited to the portion shown in the above embodiment, and for example, a syringe is provided in the gap between the entrance floor 5 and the outer peripheral foundation concrete 1. It is also possible to insert the needle tip of the above needle and supply the anti-termite chemical solution from the needle tip to the outer surface 11b of the outer peripheral foundation 11. Further, as another method of supplying the anti-termite chemical solution, a split groove that divides the upper heat insulating materials 72a, 72b, 72c into upper and lower parts may be formed, and an inset type heat insulating material that can be fitted into the divided groove may be provided. In this case, when injecting the anti-termite chemical solution, the inset type heat insulating material may be removed to expose the side surfaces 11a and 11b of the outer peripheral foundation 11, and the anti-termite chemical solution may be injected from the side surfaces 11a and 11b of the exposed outer peripheral foundation 11. ..

E Ground 1 Outer circumference foundation concrete 2 Soil slab 3 Boundary foundation concrete 4 Upper layer member 5 Entrance floor 6 Rising stile 7a, 7b Insulation material 8 Anti-termite sheet 11 Outer circumference foundation 11a Inner side surface 11b Outer side surface 30a Penetration area 31 Boundary foundation 71a, 71b, 71c Lower insulation 72a, 72b, 72c Upper insulation 73 Adhesive

Claims (4)

It is a heat-insulating foundation structure in which the sides of the outer peripheral foundation that supports the building are insulated.
The lower heat insulating material attached to the lower side of the side surface of the outer peripheral foundation,
An anti-termite sheet arranged so that at least the peripheral end is in contact with the side surface of the outer peripheral foundation and covers the upper surface of the lower heat insulating material.
It is provided with an upper heat insulating material that is in contact with the upper surface of the anti-termite sheet and is attached to the upper side of the side surface of the outer peripheral foundation.
The outer peripheral foundation is formed so as to rise upward from the ground.
A soil slab is placed on the upper surface of the ground,
The upper heat insulating material is attached to the side surface of the outer peripheral foundation in a state of being sandwiched between the soil slab and the outer peripheral foundation.
The anti-termite sheet is a material capable of blocking the anti-termite liquid injected into the gap between the upper heat insulating material and the outer peripheral foundation during maintenance after construction, or a material capable of impregnating the anti-termite liquid. Configured ,
A heat insulating basic structure characterized in that an upper surface of the lower heat insulating material and a lower surface of the anti-termite sheet are adhered with an adhesive. In the heat insulating foundation structure according to claim 1,
The adhesive is a heat insulating basic structure characterized in that it is made of a material having an anti-termite function. It is a heat-insulating foundation structure in which the sides of the outer peripheral foundation that supports the building are insulated.
The lower heat insulating material attached to the lower side of the side surface of the outer peripheral foundation,
An anti-termite sheet arranged so that at least the peripheral end is in contact with the side surface of the outer peripheral foundation and covers the upper surface of the lower heat insulating material.
It is provided with an upper heat insulating material that is in contact with the upper surface of the anti-termite sheet and is attached to the upper side of the side surface of the outer peripheral foundation.
The anti-termite sheet is a material capable of blocking the anti-termite liquid injected into the gap between the upper heat insulating material and the outer peripheral foundation during maintenance after construction, or a material capable of impregnating the anti-termite liquid. Configured,
The height position of the upper surface of the upper heat insulating material is set higher than the upper surface of the outer peripheral foundation so that the anti-termite solution can be introduced along the side surface of the outer peripheral foundation while the upper heat insulating material is attached to the outer peripheral foundation. Insulated foundation structure characterized by being on the lower side. It is a heat-insulating foundation structure in which the sides of the outer peripheral foundation that supports the building are insulated.
The lower heat insulating material attached to the lower side of the side surface of the outer peripheral foundation,
An anti-termite sheet arranged so that at least the peripheral end is in contact with the side surface of the outer peripheral foundation and covers the upper surface of the lower heat insulating material.
It is provided with an upper heat insulating material that is in contact with the upper surface of the anti-termite sheet and is attached to the upper side of the side surface of the outer peripheral foundation.
The anti-termite sheet is a material capable of blocking the anti-termite liquid injected into the gap between the upper heat insulating material and the outer peripheral foundation during maintenance after construction, or a material capable of impregnating the anti-termite liquid. Configured,
Further, a ground that is in contact with the side surface of the lower heat insulating material and is raised to substantially the same height as the upper surface of the lower heat insulating material is further provided.
The ant-proof sheet is a heat insulating foundation structure provided so as to cover the upper surface of the lower heat insulating material and the upper surface of the ground.

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