JP2004353179A - Foundation for structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a foundation for a building capable of reducing construction cost of the foundation by utilizing waste tires and having excellent base isolation property. <P>SOLUTION: This foundation 1 provided on the ground for the building is composed of a lower part foundation 1a in which many waste tire units 3 formed by overlapping waste tires 2 into a plurality of steps are arranged in parallel and a concrete upper part foundation 1b formed on the lower part foundation 1a. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a foundation provided on a ground on which various structures are installed, and more particularly to a foundation for a structure using waste tires.
[0002]
[Prior art and its problems]
Conventional foundations for structures cannot be specifically cited in the known literature, but since almost all of the foundations are made of concrete, construction costs are high and cracks occur during strong earthquakes. It was easy to occur and unequal settlement sometimes occurred.
[0003]
The present invention has been made in view of the above problems, and by using waste tires, it is possible to reduce the construction cost of the foundation, and to take a large pressure receiving area against the ground to avoid uneven settlement, and for a structure excellent in seismic isolation. The purpose is to provide the basis.
[0004]
[Means for Solving the Problems]
The foundation for a structure according to claim 1 is a foundation provided on the ground on which the structure is installed, and is characterized by being composed of a single or a plurality of stacked waste tires 2.
[0005]
The structure foundation according to claim 2 is a foundation provided on the ground on which the structure is installed, and as shown in FIGS. 10 to 13, a single waste tire 2 or a waste tire 2 is provided in a plurality of stages. It is characterized in that a plurality of stacked waste tire units 3 are juxtaposed.
[0006]
The structure foundation according to claim 3 is a foundation provided on the ground on which the structure is installed, as shown in FIG. 9, from a single waste tire 2 or a plurality of stacked waste tires 2. And a concrete upper foundation 1b formed on the lower foundation 1a.
[0007]
The structure foundation according to claim 4 is a foundation provided on the ground on which the structure is installed, and as shown in FIGS. 1 to 8, a single waste tire 2 or a plurality of waste tires 2 It is characterized by comprising a lower foundation 1a in which a plurality of stacked waste tire units 3 are juxtaposed, and an upper foundation 1b made of concrete formed on the lower foundation 1a.
[0008]
The structural foundation according to claim 5 is the structural foundation according to any one of claims 1 to 4, wherein the filler 4 is packed in the hollow portion 2o of each waste tire 2 as shown in, for example, FIG. Is characterized by the following.
[0009]
According to a sixth aspect, in the structural foundation according to the second, fourth, or fifth aspect, the waste tires 2 stacked in a plurality of stages are welded to each other, for example, as shown in FIG. Alternatively, they are integrally connected to each other by bonding.
[0010]
According to a seventh aspect, in the structural foundation according to the second, fourth, or fifth aspect, a plurality of waste tires 2 stacked in a plurality of stages are used as the plurality of waste tires 2 as shown in FIG. Of the connecting shaft reinforcing member 5 is axially pierced at intervals in the circumferential direction, and the fixing brackets 6 applied to the upper and lower ends of the plurality of waste tires 2 are attached to both ends of each connecting shaft reinforcing member 5. By being fixed, they are integrally connected to each other.
[0011]
BEST MODE FOR CARRYING OUT THE INVENTION
FIG. 1 is a perspective view showing a structural foundation 1 according to the present invention, FIG. 2 is a longitudinal sectional view of the structural foundation 1, and FIG. 3 is a more detailed longitudinal sectional view of the structural foundation 1. The structural foundation 1 includes a lower foundation 1a formed by juxtaposing a large number of waste tire units 3 in which waste tires 2 are stacked in a plurality of stages, and a concrete upper foundation 1b formed on the lower foundation 1a. Consists of The upper foundation 1b of the structural foundation 1 is made of a cloth foundation A.
[0012]
The waste tire 2 is, for example, a tire for a heavy truck, and a hollow portion 2o of each waste tire 2 is filled with a filler 4 as shown in FIG. As the filler 3, concrete, mortar, cement milk, concrete shell, foam mortar, tire chips, earth and sand, polystyrene foam, and the like are used. In order to pack the filler 3 into each waste tire 2, while rotating the waste tire 2, the hollow portion 2 o is filled with the fresh concrete, mortar, cement milk, or the like using centrifugal force, or is filled with concrete shells, tire chips. , Earth and sand, tile pieces, brick pieces, pottery pieces, tile pieces, glass pieces, styrofoam, etc. each alone or a mixture of two or three of them (for example, concrete shell and styrofoam) in the hollow portion 2o. Try to stuff them. Further, as another method of filling the waste tire 2 with the filler 3 such as concrete or mortar, the waste tire 2 is erected or laid down and fixed in a hopper through a hole formed in a side surface or an outer peripheral surface of the waste tire 2. The filling material 4 may be poured. The waste tire 2 may be left empty without filling the hollow portion 2o with the filler 3 in some cases.
[0013]
The waste tire unit 3 is formed by adhering, for example, three waste tires 2 in which the filler 4 is packed in the hollow portions 2o to the vertically adjacent waste tires 2, 2 with an adhesive, or By heating and fusing and welding the joint surfaces of the waste tires 2 and 2 adjacent to each other, the waste tires 2 are integrally connected to each other. The waste tire unit 3 shown in FIGS. 2 and 3 is formed by stacking waste tires 2 having the same diameter in a plurality of stages, but may be formed by alternately stacking waste tires 2 having different diameters. Good.
[0014]
The waste tire unit 3 integrally connects the plurality of waste tires 2 by welding or bonding the vertically adjacent waste tires 2 to each other, as in the waste tire 2 shown in FIG. A plurality of (for example, four to eight) connecting shaft reinforcing members 5 are passed through the waste tire 2 which is superimposed in a plurality of upper and lower stages in the axial direction at intervals in the circumferential direction so that the waste tire unit 3 The plurality of waste tires 2 may be integrally connected to each other by fixing the fixing brackets 6 applied to the waste tires 2 on both ends to both ends of each connecting shaft member 5. In this case, a connecting bar 8 for connecting to the upper foundation 1b is attached to the upper end of each connecting shaft bar 5 by welding. The connecting streaks 8 may be attached to the upper fixing bracket 6 with bolts.
[0015]
A PC steel wire or a deformed reinforcing bar is used for the connecting shaft reinforcing member 5. The PC steel wire is made of a high tensile strength steel wire having a diameter of, for example, 9 to 12 mm. Male threads are formed at both ends, and a large-diameter head (bolt) 9 for locking is formed at one end. Have been. The deformed rebar is, for example, a rebar having a diameter of 19 to 35 mm with knotted projections on the rebar surface. FIG. 4 illustrates the case of a PC steel wire.
[0016]
FIG. 5 shows a state in which the waste tire unit 3 in which the waste tires 2 are stacked in a plurality of stages is fixed in the ground by a plurality of anchors 12. (A) is a waste tire unit 3 in which waste tires 2 are stacked in three stages, (b) is a waste tire unit 3 in which two stages are stacked, and (c) is a plan view thereof. The anchor fitting 12 is composed of a rod-shaped main body 12a and a downwardly U-shaped hook portion 12b connected to the upper end of the rod-shaped main body 12a. For example, as shown in FIG. The rod-shaped main body 12a is driven along the inner surface of the stacked waste tires 2, and the hook portions 12b are engaged with the uppermost waste tires 2.
[0017]
The structure foundation 1 having the above structure, that is, a lower foundation 1a in which a large number of waste tire units 3 are juxtaposed, and a cloth foundation A which is a concrete upper foundation 1b formed on the lower foundation 1a. In order to construct the structural foundation 1 as shown in FIG. 1, first, the ground for a building is excavated to a predetermined depth over a predetermined range, and a gravel, crushed stone or chestnut stone layer G is provided at the bottom thereof. By arranging the waste tire units 3 in a row on the gravel, crushed stone or chestnut stone layer G in a state where the waste tire units 3 are adjacent to each other along the arrangement line of the fabric foundation A formed as shown in FIG. , The lower foundation 1a is formed. In this case, the waste tire 2 of the waste tire unit 3 has a diameter larger than the bottom width w (see FIG. 2) of the cloth foundation A. The filler 4 is packed in each waste tire 2 of the waste tire unit 3.
[0018]
As described above, if the waste tire units 3 are arranged on the gravel, crushed stone, or chestnut stone layer G along the arrangement line of the cloth foundation A, the hollow portion of each waste tire unit 3 is as shown in FIG. After filling the excavated earth and sand S (or may be filled with the filler 4 made of concrete, concrete shell, etc.), concrete form panels for forming a cloth foundation are temporarily provided on the three rows of the waste tire units. By casting concrete, a cloth foundation A as the upper foundation 1b as shown in FIGS. 1 to 3 is formed. In this case, the length of the cloth foundation A may be sufficiently lower than the conventional cloth foundation in which the entire foundation is formed of concrete. Further, when forming the fabric foundation A, as shown in FIG. 4, the connecting bars 8 connected to the upper end portions of the connecting shaft members 5 of the waste tire unit 3 are protruded into the form panel, Each waste tire unit 3 and the concrete cloth foundation A can be integrated. The connecting bar 8 may be bolted to the fixing bracket 6 on the upper side.
[0019]
After the structural foundation 1 composed of the lower foundation 1a composed of a large number of waste tire units 3 and the upper foundation 1b composed of the cloth foundation A is formed on the building ground in this way, as shown in FIG. The construction of the structural foundation 1 is completed by backfilling the excavated soil S so as to fill about half its height.
[0020]
According to the structural foundation 1 including the lower foundation 1a and the upper foundation 1b as described above, the lower foundation 1a is formed by juxtaposing a large number of waste tire units 3 in which waste tires 2 are stacked in a plurality of stages. Since the waste tire 2 is used for the lower foundation 1a, a large pressure receiving area of the foundation can be obtained by the waste tire 2, and uneven settlement can be prevented. Further, since the elasticity of the rubber of the waste tire 2 is used, a seismic isolation effect is exerted, and it is effective when an earthquake occurs. Further, since the lower foundation 1a is formed by using the waste tire 2 which has been incinerated as industrial waste, the lower foundation 1a does not pollute the environment as in the case of incinerating the waste tire. The object can be used effectively. In addition, by using the waste tire 2 for the lower foundation 1a, the material cost of the foundation is much lower than that of concrete, and the construction cost is greatly reduced as compared with the conventional structure foundation in which the entire foundation is formed of concrete. It is possible to achieve a significant reduction. Furthermore, a desired basic supporting force can be obtained by selecting the diameter of the waste tire 2 and the stacking height of the waste tire 2. For example, if a large diameter waste tire 2 such as a large truck is used, a large supporting force can be obtained.
[0021]
Further, by filling the hollow portion 2o of the waste tire 2 with the filler 3 such as concrete, mortar, cement milk, concrete shell, foam mortar, tire chip, earth and sand, and styrene foam, the strength and rigidity of the lower foundation 1a are increased. In addition to the above, the performance of the lower foundation 1a can be adjusted, and it can be used according to the ground condition, and the effective use of waste materials such as concrete shells, tire chips, and styrene foam can be achieved.
[0022]
6 is a perspective view showing another structural foundation 11 according to the present invention, FIG. 7 is a longitudinal sectional view of the structural foundation 11, and FIG. 8 is a sectional view taken along line XX of FIG. The structure foundation 11 is formed on the lower foundation 1a in which a large number of waste tire units 3 in which waste tires 2 are stacked in a plurality of stages are juxtaposed, similarly to the structure foundation 1, and formed on the lower foundation 1a. The upper foundation 1b is different from the structural foundation 1 in that the upper foundation 1b comprises a solid foundation B. The configuration of each waste tire unit 3 of the lower foundation 1a is exactly the same as the configuration of the structural foundation 1 described above, and each waste tire 2 has a hollow portion 2o filled with a filler 4.
[0023]
In order to construct this structural foundation 11, as in the case of the structural foundation 1, the ground for the building is excavated to a predetermined depth over a predetermined range, and a gravel, crushed stone, or a chestnut stone layer G is provided at the bottom thereof. The lower foundation 1a is formed by arranging a large number of waste tire units 3 in a state as shown in the plan views of FIGS. 7 and 8 over the entire upper surface of the gravel, crushed stone, or chestnut stone layer G. After the excavated earth and sand S is packed in the hollow portion of each waste tire unit 3 (or the filler 4 made of concrete, concrete shell or the like may be packed), a solid foundation is placed above the waste tire units 3. By temporarily placing a concrete form panel for forming and casting concrete, a solid foundation B as the upper foundation 1b as shown in FIG. 6 is formed.
[0024]
In this embodiment, the large number of waste tire units 3 forming the lower foundation 1a are arranged so that there is almost no gap in front, rear, left and right, but they may be arranged at an appropriate interval from each other. When the upper foundation 1b is made of the solid foundation B as in this embodiment, the disposal of the waste tire unit 3 is easy, so that the construction is easy. The operational effects of the waste tire unit 3 and each waste tire 2 forming the lower foundation 1a are the same as in the case of the structural foundation 1 described above.
[0025]
FIGS. 9A and 9B are perspective views showing the structural foundation 21 according to the present invention. The structure foundation 21 shown in (a) comprises a lower foundation 1a made of a single waste tire 2 and a concrete upper foundation 1b formed on the lower foundation 1a. The structural foundation 21 shown is composed of a lower foundation 1a composed of waste tires 2 stacked in a plurality of levels, for example, two levels, and a concrete upper foundation 1b formed on the lower foundation 1a. It is. The upper foundation 1b is composed of a concrete bundle foundation C supporting the bundle 13. The waste tire 2 of the lower foundation 1a has the same configuration as that of the structural foundations 1 and 11 described above, and the filler 4 is packed in the hollow portion 2o of each waste tire 2. Since the structural foundation 21 also uses the waste tire 2 for the lower foundation 1a, the pressure receiving area of the foundation can be increased by this waste tire 2, and uneven settlement can be prevented, and the elasticity of the rubber of the waste tire 2 is utilized. Therefore, the seismic isolation effect is exerted and is effective when an earthquake occurs.
[0026]
10A and 10B show a structural foundation 31 according to the present invention, wherein FIG. 10A is a side view, and FIG. 10B is a perspective view. The structural foundation 31 is a foundation provided on a ground on which a relatively small concrete U-shaped gutter 14 having a groove width and a groove depth of 240 to 600 mm, respectively, is installed. (Not piled up in a row). The structure of the waste tires 2 is the same as that of the structural foundations 1 and 11 described above, and each of the waste tires 2 has a hollow portion 2o filled with a filler 4. In order to construct the foundation 31, as shown in FIGS. 10 (a) and (b), the waste tires 2 are juxtaposed in a line on a gravel, crushed stone, or griffin layer G to form the foundation 31. Then, the ready-made U-shaped side groove 14 may be placed on the foundation 31 composed of the one row of waste tires 2 via the mortar 15. The central opening of each waste tire 2 may be filled with earth and sand.
[0027]
FIG. 11 shows a structure foundation 31 similar to that shown in FIG. 10, and two left and right waste tires 2 and a single waste tire 2 are placed on a gravel, crushed stone, or chestnut stone layer G. The U-shaped side grooves 14 are alternately arranged along the longitudinal direction. According to such a foundation 31, the pressure receiving area can be made sufficiently large, and the U-shaped side groove 14 can be supported in a more stable state.
[0028]
(A) and (b) of FIG. 12 show the structural foundation 31 provided on the ground on which the large concrete U-shaped gutter 14 having a groove width of 1200 to 2000 mm and a groove depth of 1100 to 1500 mm is installed. In this case, the waste tires 2 are arranged, for example, in four rows along the longitudinal direction of the U-shaped side groove 14 on the gravel, crushed stone or chestnut stone layer G as shown in (b). . The structure of the waste tires 2 is the same as that of the structural foundations 1 and 11, and each waste tire 2 is filled with a filler in the hollow portion. In this case, the concrete U-shaped side groove 14 is formed on the foundation 31 by casting in place.
[0029]
(A) and (b) of FIG. 13 are perspective views showing the structural foundation 41 according to the present invention. The foundation 41 for the structure is, for example, a ground on which a concrete box culvert (for example, the inner width is 1000 to 5000 mm and the inner height is also 1000 to 5000 mm) 16 used as a tunnel member for a human road or a road is installed. And a plurality of waste tire units 3 in which waste tires 2 are stacked in plural stages, for example, two stages. The waste tires 2 have the same structure as the structural foundations 1, 11, 31. Each of the waste tires 2 has a hollow portion filled with a filler.
[0030]
In order to construct the foundation 41, as shown in FIGS. 13A and 13B, the waste tire 2 is, for example, stacked in two steps on a gravel, crushed stone, or a gritty stone layer G. The foundation 41 is formed by juxtaposing a large number of waste tire units 3 in, for example, four rows along the longitudinal direction of the U-shaped side groove 14. The hollow portion of each waste tire unit 3 may be filled with earth and sand. On the foundation 41 thus formed, the concrete box culvert 16 is formed by casting in place.
[0031]
According to the structure foundations 31 and 41 as described above, since a large number of waste tires 2 are used, the pressure receiving area of the foundation can be increased by these waste tires 2, uneven settlement can be prevented, and the waste tires 2 can be prevented. By using the elasticity of rubber, the seismic isolation effect is exerted and effective when an earthquake occurs. A desired supporting force can be obtained by selecting the diameter of the waste tire 2, the number of the disposed tires, the number of stacked tires, and the like. In addition, by filling the hollow portion 2o of each waste tire 2 with the filler 4, the strength of the foundation can be increased.
[0032]
Although not shown, the foundation according to the present invention can be constituted by one waste tire 2. For example, when installing a relatively small structure such as a copper statue, a waste tire 2 of a large truck, for example, larger than the diameter of the structure, can be used as a structure base. In this case as well, the waste tire 2 allows a large pressure receiving area of the foundation to be obtained, preventing uneven settlement and exerting a seismic isolation effect, which is effective when an earthquake occurs.
[0033]
【The invention's effect】
Since the structural foundation of the invention according to claim 1 is composed of a single or a plurality of stacked waste tires, the waste tire allows a large pressure receiving area of the foundation to prevent uneven settlement. In addition, since the elasticity of the rubber of the waste tire is used, a seismic isolation effect is exhibited, which is effective when an earthquake occurs. In addition, since this foundation is formed using waste tires that have been incinerated as industrial waste, it does not pollute the environment as in the case of incinerating waste tires. And construction costs can be reduced. Further, the basis of the present invention is effectively applied when supporting a small structure.
[0034]
The structure foundation of the invention according to claim 2 is a structure in which a single waste tire or a plurality of waste tire units in which waste tires are stacked in a plurality of stages are juxtaposed, from relatively small structures to large structures. They can be used as a foundation for directly supporting them, and the use of these waste tires can increase the pressure receiving area of the foundation, prevent uneven settlement, and use the elasticity of the rubber of waste tires. A seismic effect is exerted and is effective when an earthquake occurs. In addition, the effective use of industrial waste can be achieved.
[0035]
The structural foundation of the invention according to claim 3 includes a lower foundation made of a single waste tire or a plurality of stacked tires, and a concrete upper foundation formed on the lower foundation. This is applied when the upper foundation is a bundle foundation and waste tires are used for the lower foundation, so that the pressure receiving area of the foundation can be made large and uneven settlement can be prevented. Further, since the elasticity of the rubber of the waste tire is used, a seismic isolation effect is exerted, which is effective when an earthquake occurs, and the industrial waste can be effectively used. Also, by using waste tires for the lower foundation, the cost of material for the foundation is much lower than for concrete, as compared to conventional structural foundations in which the entire foundation is made of concrete. Reduction can be achieved. When stacking waste tires in a plurality of stages, a desired basic support force can be obtained by selecting the diameter of waste tires or the number of waste tires to be stacked.
[0036]
The structural foundation of the invention according to claim 4 is formed on a lower foundation in which a single waste tire or a plurality of waste tire units in which waste tires are stacked in a plurality of stages are juxtaposed, and on the lower foundation. Since it consists of a concrete upper foundation, it is effective when the upper foundation is a cloth foundation or a solid foundation. Other effects are the same as the effects of the invention according to claim 3.
[0037]
According to the structural foundation of the invention according to claim 5, by filling the filler in the hollow portion of the waste tire, the strength of the foundation pile can be increased, and the performance of the foundation pile can be adjusted. Use according to the ground condition becomes possible, and effective use of waste materials such as concrete shells, tire chips, styrofoam and the like can be achieved.
[0038]
According to the structural foundation of the invention according to claim 6, a large number of waste tires can be easily connected in a superposed manner by welding or bonding together vertically adjacent waste tires.
[0039]
According to the structural foundation of the invention according to claim 7, a plurality of connecting shaft reinforcing members are axially penetrated through a large number of waste tires at intervals in the circumferential direction, and are provided at upper and lower ends of these waste tires. By fixing the applied fixing brackets at both ends of each connecting shaft member, the connection strength of the waste tire can be increased, and the connection operation of the waste tire can be performed quickly and easily.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a structural foundation according to the present invention.
FIG. 2 is a longitudinal sectional view of a structural foundation.
FIG. 3 is a more detailed longitudinal sectional view of a structural foundation.
FIG. 4 is a longitudinal sectional view of a waste tire unit using a connecting shaft member.
FIGS. 5A and 5B are cross-sectional views showing a state in which the waste tire unit is fixed in the ground with anchors, and FIG. 5C is a plan view.
FIG. 6 is a perspective view showing another structural foundation according to the present invention.
FIG. 7 is a longitudinal sectional view of the same structure foundation.
FIG. 8 is a sectional view taken along line XX of FIG. 6;
9 (a) and (b) are perspective views of another structural foundation according to the present invention.
10 (a) is a side view and FIG. 10 (b) is a perspective view showing another structure foundation for the present invention.
11 (a) is a side view and FIG. 11 (b) is a perspective view showing another structure foundation of the present invention.
12A and 12B show another structure foundation of the present invention, wherein FIG. 12A is a side view and FIG. 12B is a perspective view.
13 (a) is a side view, and FIG. 13 (b) is a perspective view, showing another structural foundation for the present invention.
[Explanation of symbols]
1,11,21,31,41 Structural foundation 1a Lower foundation 1b Upper foundation 2 Waste tire 2o Waste tire hollow 3 Waste tire unit 4 Filler 5 Connecting shaft reinforcement 6 Fixture A Cloth foundation B Solid foundation C bundle foundation 14 Concrete U-shaped gutter 16 Box culvert

Claims (7)

A foundation for a structure provided on the ground on which the structure is to be installed, comprising a single or a plurality of stacked waste tires. A foundation for a structure provided on a ground on which a structure is installed, wherein a single waste tire or a plurality of waste tire units in which waste tires are stacked in a plurality of stages are juxtaposed. A foundation provided on the ground where the structure is installed, a lower foundation consisting of a single waste tire or a stack of waste tires, and a concrete upper foundation formed on the lower foundation. , Consisting of a foundation for structures. A foundation provided on the ground on which the structure is installed, a lower foundation formed by juxtaposing a single waste tire or a plurality of waste tire units in which waste tires are stacked in a plurality of stages, and formed on the lower foundation. A structural foundation consisting of a concrete upper foundation to be made. The structural foundation according to any one of claims 1 to 4, wherein a filler is packed in a hollow portion of each waste tire. The structural foundation according to claim 2, 4 or 5, wherein the waste tires stacked in a plurality of stages are integrally connected to each other by welding or bonding together vertically adjacent waste tires. The waste tires stacked in a plurality of stages are applied to the upper and lower ends of the plurality of waste tires by passing a plurality of connecting shaft reinforcements through the plurality of waste tires in the axial direction at intervals in the circumferential direction. The structural foundation according to claim 2, 4 or 5, wherein the fixing brackets attached are fixed to both ends of each connecting shaft reinforcing member to be integrally connected to each other.

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