JPH07145622A - Foundation structure for wooden building or the like and construction method thereof - Google Patents

Abstract

PURPOSE:To prevent uneven settlement, lean, etc., due to soft ground and obtain a sufficient bearing force as a foundation for a relatively large building, by supporting a slab by the whole top face of binding fillers and continuous footings. CONSTITUTION:Rubble stones 3 are laid in a cut ditch 2 in the ground 1 and compacted and a leveling concrete 4 is placed to form a foundation base 5. And continuous footing 6 forms are assembled along the foundation base 5 to nearly correspond to the arrangement place of the external walls and partition walls of an upper structure to be constructed. Next, binding fillers 12 are charged in the space 11 formed between continuous footings 6 and a slab 18 is laid on the top thereof to support it by the fillers and footings and obtain a foundation structure. The load of the upper structure constructed on the slab 18 is dispersed almost evenly to the fillers 12 and the continuous footings 6 through the slab 18 and transmitted to the ground 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to improvement of a basic structure for a wooden building and the like and a construction method thereof.

[0002]

2. Description of the Related Art Generally, a foundation structure plays a role of evenly transmitting the total load of an upper structure to the ground to keep a building safe, and therefore, its scale, use, ground condition, etc. It is necessary to make it a solid one that complies with the above, but conventionally, as this kind of basic structure, there is one as shown in FIG. 4, for example.

That is, in this conventional one, the crushed stone 3a is laid on the excavated ground 1a, and the concrete 4a is discarded on the crushed stone 3a.
The cloth foundation 6a is arranged via the bases, and the pillars 22 are erected on the base 21 attached to the cloth foundation 6a, or the joists 23 are installed to attach the floor boards.

[0004]

However, in the above-mentioned conventional foundation structure, the load of the upper structure is directly borne by the cloth foundation 6a, so that, for example, the ground is soft or heavy construction is performed. When constructing objects, there is a problem that the bearing capacity is insufficient and the applicable range is limited.

Further, in order to attach the floor plate, it is necessary to lay a large number of joists on the base 21 as described above, and a series of work on the site becomes very complicated, so that the construction period is longer than necessary. However, there was a big problem that the workability was remarkably lacking.

Further, when constructing the foundation structure, so-called root cutting work is first performed to excavate the ground. Although a part of the excavated earth and sand is used for embankment, etc., most of it is unnecessary. In addition, there is an inconvenience that a work for carrying this out is required separately.

Therefore, the present invention has been made in order to solve the above-mentioned conventional problems, and enables the construction of a solid foundation structure and simplifies the work on site. The challenge is to significantly shorten the construction period.

[0008]

[Means for Solving the Problems] That is, in order to solve the above-mentioned problems, a foundation structure for a wooden building or the like according to the present invention is a foundation ground 5 made of split stone, etc. laid on the ground 1.
A cloth foundation 6 formed in a framework along the foundation 5, and a space filling material 12 filled in a space 11 formed between the cloth foundations 6.
And a slab 18 supported by the padding material 12 and the entire top surface of the cloth foundation 6.

In addition, the method of constructing a basic structure for a wooden building or the like according to the present invention is such that, after arranging split stones etc. on the ground 1 to form the basic ground 5, along the basic ground 5, The cloth foundation 6 is formed into a frame so as to be substantially aligned with the positions of the outer peripheral wall and the partition wall of the upper structure to be constructed, and then the space 12 formed between the cloth foundations 6 is filled with the filling material 12. After that, the slab 18 is placed on the top surface of the padding material 12 and the cloth foundation 6 to support the top surface.
Is arranged to construct a basic structure.

[0010]

Therefore, the basic structure having the above structure is
Since the slab 18 is supported by the packing material 12 and the entire top surface of the cloth foundation 6, the load of the upper structure built on the slab 18 is increased by the packing material 12 and the cloth through the slab 18. It will be distributed substantially evenly over the entire foundation 6 and transmitted to the ground 1.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a method for constructing a foundation structure according to the present invention will be described below with reference to the drawings.

First, root cutting work is performed to install a foundation structure. The ground 1 is excavated so as to substantially coincide with the positions of the outer peripheral wall and the partition wall of the upper structure to be constructed.

Then, as shown in FIG. 1, a crushed stone 3 is laid in the excavation groove 2 and crushed, and then a discarded concrete 4 is cast on the crushed stone 3 in a substantially flat form to form a foundation 5. To do.

Next, after the discarded concrete 4 is hardened, the concrete block 6 having a constant height, which is formed in advance in a shape such as an I-shaped section, an L-shaped section, and a T-shaped section as shown in FIG. A frame is formed as shown in FIG.

A plurality of rebars 8 are formed on the end face of the block 6 in the longitudinal direction and on the top face at predetermined intervals, and a plurality of rebars 8 project from the end face of the rebar 8 on the side of the recesses 7. Blocks facing each other after welding and connecting metal fittings
Concrete 9 is placed between the end faces of the to integrate them.

Since the series of work is performed by appropriately combining the blocks 6 manufactured in advance in the factory, it is possible to ensure a certain accuracy and also to simplify the work on site. Therefore, the construction period can be greatly shortened and the construction cost can be reduced.

After filling the excavation groove 2 with the earth and sand 10 excavated in the root cutting work as shown in FIG. 1, a space material 11 formed between the blocks 6 is filled with a filling material 12. However, the interstitial material 12 is the remaining excavated earth and sand 10, earth and sand 13 mixed with split stone or ground improvement agent, and discarded concrete.
14, a moisture-proof film 15 and a heat insulating material 16, which are laminated in this order to close the space 11.

Since the filling material 12 having such a structure is stronger than a simple ballast layer, it is possible to secure substantially the same bearing capacity as the old ground 1. The heat insulating material 16 is so constructed that its upper surface is substantially flush with the top surface of the block 6.

Further, since the remaining excavated soil 10 is used as a part of the filling material 12 as described above, it can be effectively utilized, and the work for carrying out the excavated soil 10 is not necessary.

Next, after the other reinforcing bars 17 are arranged between the reinforcing bars 8 protruding from the top surface of the block 6, concrete is poured so as to be supported by the filling material 12 and the entire top surface of the block 6. Then, the slab 18 is formed.

By this, the construction of the foundation structure is completed, but the joint metal fittings and the like are fixed at predetermined positions on the slab 18 to form the framework 19 such as the pillar and the base, and the floor base material and the floor. The finishing material 20 is laid to construct an upper structure that is a wooden building.

The upper structure is the block 6 and the filling material.
The load applied to the slab 18 is favorably distributed to the block 6 and the filling material 12 and is transmitted to the ground 1 in order to be supported by a solid foundation structure that integrates the three members of the 12 and the slab 18. Becomes

Therefore, even if the ground 1 is a soft ground, it is possible to prevent the occurrence of unequal subsidence, inclination, etc., and to have a bearing capacity that can withstand even when the upper structure is relatively large.

In addition, as in the above-mentioned embodiment, the block is provided with the cloth foundation 6
When used as the above, the advantage that the construction accuracy can be improved and the workability can be improved can be obtained. However, the cloth foundation 6 according to the present invention may be appropriately formed on the site with a mold.

The filling material 12 in the above embodiment is composed of excavated earth and sand 10, earth and sand 13 mixed with split stone or ground improvement agent, discarded concrete 14, moisture-proof film 15 and heat insulating material 16. The specific constituent member is not limited to this, and the essential point is that it can firmly support the slab 18 together with the cloth foundation 6.

Further, the present invention is not limited to the wooden construction as in the above-mentioned embodiment, but can be applied as a basic structure for a lightweight steel frame structure or the like.

In addition, the specific configuration such as the shape of the upper structure can be arbitrarily changed in design within the scope intended by the present invention.

[0028]

As described above, according to the present invention, the slab is supported by the entire top surface of the stuffing material and the cloth foundation, so that the load of the superstructure constructed on the slab does not affect the slab. Thus, the particles are distributed substantially evenly on the filling material and the cloth foundation and transmitted to the ground.

Therefore, as in the conventional foundation structure which receives the full load only by the cloth foundation, it is possible to satisfactorily avoid the occurrence of uneven settlement or inclination due to the soft ground, and as a foundation for a relatively large superstructure. In order to have a bearing capacity that can withstand enough, the application range has been broadened compared to the past, and the particular effect has been obtained.

Further, as described above, since the construction work of the foundation structure according to the present invention is simple, there is a practical effect that the construction period and the construction cost can be shortened.

[Brief description of drawings]

FIG. 1 is a partial sectional front view showing an embodiment of the present invention.

FIG. 2A to FIG. 2C are plan views of blocks.

FIG. 3 is a plan view showing a construction state.

FIG. 4 is a partially enlarged sectional view showing a conventional example.

[Explanation of symbols]

 1 ... Ground 5 ... Foundation 6 ... Fabric foundation 11 ... Space 12 ... Filling material 18 ... Slab

Claims (2)

[Claims] 1. A foundation ground (5) laid on the ground (1) and made of split stone, a cloth foundation (6) framed along the foundation ground (5), and the cloth foundation (5). 6) Space formed between (11)
Wooden structure, etc., characterized in that it comprises a filling material (12) filled in the space and a slab (18) supported by the entire filling material (12) and the top surface of the cloth foundation (6). Foundation structure for. 2. A foundation ground by laying split stones etc. on the ground (1)
After forming (5), along the foundation (5) above, the fabric foundation (6) is formed into a frame so as to be substantially aligned with the positions of the outer peripheral wall and the partition wall of the upper structure to be constructed, Next, after filling the space (11) formed between the cloth foundations (6) with the space filling material (12), it is supported by the space filling material (12) and the entire top surface of the cloth foundation (6). In order to do so, a slab (18) is arranged on the top surface to construct a basic structure, which is a method for constructing a basic structure for a wooden building or the like.