JPH0733675B2 - Forming method for formwork-integrated cloth foundation and formwork-integrated cloth foundation - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention is applicable to general houses, garages,
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a formwork-integrated cloth foundation suitable for forming a cloth foundation in the case of constructing a steel frame building, a retaining wall, etc. and a method for forming the formwork-integrated cloth foundation.

[0002]

2. Description of the Related Art Conventionally, the following construction methods have been generally used for forming a cloth foundation of a building. That is, after performing root cutting and rolling compaction of stones, as a first step, assembling a formwork for leveling concrete, placing and curing leveling concrete, disassembling and cleaning the formwork. As the second step, marking out the base formwork, assembling the base formwork, binding the base reinforcement,
Placing and curing base concrete, dismantling and cleaning the base formwork. Furthermore, as the third step, assembling the fabric foundation reinforcement, assembling the inner and outer frames for the fabric foundation, adjusting the frames with the home tie, reinforcing the formwork with a single pipe, placing and curing the cloth concrete, the inner frame And dismantle the outer frame. Then, finally, the work of backfilling the soil around the cloth foundation is performed, thereby completing the cloth foundation forming operation.

[0003]

As described above, according to the prior art, roughly three steps are required, but these steps have the following drawbacks. (B) In order to place and cure leveling concrete, base concrete and cloth concrete in the root cutting respectively,
It requires a long period of construction. (B) Since the width of the inner frame and the outer frame needs to be determined by the home tie after the formwork is reinforced with the tall wood, workability is extremely poor. (C) The formwork (concrete panel) can be reused 2-3 times, but it requires a great deal of effort because cleaning and oiling work must be performed to remove concrete pieces each time it is used. Is. In addition, a storage place for the formwork is also required.

(D) Since there is an error in assembling the formwork, it is necessary to chip the concrete connection portion, which requires a great deal of work. (E) Since the scaffolding is bad until the concrete is hardened and backfilled after root cutting, workability is impaired and there is a risk. (F) Base bar arrangement and horizontal muscle binding work are required,
Requires skill. Moreover, there is a case where the reinforcement is disturbed during the assembling of the formwork or when pouring the ready-mixed concrete. (G) A single pipe (reinforcement pipe) must be used to support the outside of the formwork against the internal pressure when pouring fresh concrete, which requires materials and labor.

(H) Since the leveling concrete, the base concrete and the cloth concrete are placed in three times, the adhesion between the concretes is poor and the durability is likely to be impaired. (I) Since many work steps are required, it takes a long period of time for construction, and it is easily affected by weather such as rain, snow, and wind, and there are cases where the work must be stopped. (G) It is necessary to dismantle and remove materials such as formwork and single pipes after forming the fabric foundation. (L) After pouring ready-mixed concrete, a large number of anchor bolts must be planted at specified intervals, but some of the anchor bolts are forgotten to be planted, the intervals vary, and the anchor bolts tilt. There may be cases where

(E) A professional carpenter carpenter is required to assemble the formwork. (W) Since the top end is finished with mortar, cracks or cracks may occur in the mortar, resulting in poor adhesion to the base, or even deformation of the base. (F) The outer surface of the cloth foundation projecting upward from the ground needs to be painted. As described above, in the conventional technique, many steps are required, and a skilled worker is required for each step, so that there is a problem that the working period becomes long and a molding operation cost increases.

The present invention has been made in view of the above-mentioned many drawbacks of the prior art, and it is possible to greatly reduce the number of mold frame-integrated cloth foundations which are easy to assemble and have high strength, and the molding process as compared with the conventional art. Moreover, since each process is simplified, it is an object to provide a method for forming a mold-integrated cloth foundation that can significantly reduce the construction period.

[0008]

The formwork-integrated cloth foundation of the present invention constructed to solve the above-mentioned problems is provided with a base formwork support plate 7 adjustable in the height direction, and a root cutting 1 widthwise center at a, and a plurality of formwork support 3 erected in longitudinally spaced, grid pattern between the mold frame support 3 is positioned on the lower side of the respective mold support 3 Base reinforcement that is fixedly attached to the
8 , base mold parts 9 that are arranged in a row in the root cutting 1 while being horizontally supported by the base mold support plate 7 so as to cover the base bar arrangement parts 8 , and the base mold parts 9 A horizontal bar 13 which is located above the frame and is installed between the formwork supports 3, and the horizontal bar 1
3 and the cloth base mold part 14 that is stacked on the base mold part 9 in a state of being engaged with the mold support body 3, and is cast from the cloth base mold part 14 into the base mold part 9 . Ready-to-use concrete
A, and a rectangular top end finishing plate 18 fixed to the upper end of the cloth foundation mold part 14 .

It is preferable that a plurality of anchor bolts 19 are provided on the top end finishing plate 18 so as to project in both upper and lower surfaces in the longitudinal direction.

The method for forming a cloth foundation integrated with a formwork according to the present invention includes (1) a step of excavating a root cutting 1 having a predetermined depth in a site, (2) a uniform cutting on the bottom surface of the root cutting 1. A step of forming a cobblestone layer 2 , (3) a plurality of formwork supports 3 provided with a base formwork support plate 7 adjustable in the height direction, in the widthwise center of the root cutting 1 and in the longitudinal direction A step of standing up at a predetermined interval, (4) supporting the base formwork on the lower side of the formwork support 3
A step of arranging a lattice-shaped base reinforcing bar portion 8 in the root cutting 1 located above the plate 7 , (5) the base reinforcing bar portion 8 in the state of being engaged with the mold support 3 ; A step of arranging the base mold parts 9 on the base mold support plate 7 so as to cover them, (6) laying a horizontal streak 13 between the mold frame supports 3 located above the base mold parts 9 And (7) stacking a plurality of stages of cloth foundation form parts 14 on the base form part 9 in a state of being engaged with the form support 3 and forming cloth base forms 15 of each stage , A step of arranging the horizontal streaks 13 in 16 and 17 in a state of intersecting with the form support 3 ; (8) backfilling of soil on both outer side surfaces of the base form 9 and the cloth foundation form 14 ; step for embankment, (9) after backfilling and embankment soil, a step of pouring the fresh concrete a to the base mold part 9 and fabric foundation mold portion 14 (10) after casting of the raw concrete A, the step of laying the Tentan finishing plate 18 to the upper end of the fabric foundation formwork section 14, (11) after curing of the raw concrete A, the fabric foundation formwork section 14 The step of removing the embankment from both sides of the outer surface.

[0011]

The formwork supporter provided upright in the root cutting supports the base formwork part and the cloth foundation formwork part in horizontal and vertical states. Concrete adheres to the base reinforcement and horizontal reinforcement, increasing the strength of the fabric foundation. The upper end of the cloth foundation can be formed flat by a top finishing plate. The anchor bolts can be held at equal intervals and vertically by being planted on the top end finishing plate.

Further, in the method for forming the cloth foundation, the molds can be easily assembled by stacking the base mold part and the cloth base mold part. The internal pressure applied to the base formwork and the cloth foundation formwork at the time of pouring fresh concrete is received by the backfilled soil and the embankment, and the entrapment phenomenon of these formwork parts is prevented.

[0013]

Embodiments of the present invention will now be described in detail with reference to the drawings. In the figure, 1 indicates a root cutting excavated in the site A,
The root cutting is formed in the same manner as the conventional root cutting when forming a cloth foundation. Reference numeral 2 denotes a rubble stone layer laid on the bottom surface 1A of the root cutting 1, and the rubble stone layer 2 has a large number of rubble stones 2A, 2A,
Is uniformly compacted by a compaction means or the like.

.. are base mold parts 9 to be described later.
And a formwork support for supporting the cloth foundation formwork 14 in a horizontal and vertical state, wherein each formwork support 3 includes a jack part 4, support columns 5, 5 ,. 6 and a base form supporting plate 7. Here, the jack part 4 has a male screw engraved on the outer peripheral surface thereof, and a pivot 4A having an axially recessed female screw part on the upper end side, and a level adjusting plate rotatably attached to the upper end side of the pivot 4A. 4B and an elevating lever 4C which is screwed into the pivot 4A and is rotated to elevate and lower the level adjusting plate 4B. Each support column 5 is made of a metal round bar having a female screw portion on the lower end side and a male screw portion on the upper end side, and is screwed to the upper end of the pivot 4A or the upper end of another support column 5. ing.

Further, the plate 6 is composed of a rectangular flat plate made of metal or recycled plastic, and is located at the center in the width direction and has a plurality of pillar insertion holes (not shown) in the longitudinal direction and an adhesive force of concrete. Holes 6A, 6A for increasing
・ Has formed. Then, the plate 6 is fixed on the level adjusting plate 4B and arranged in the longitudinal direction in the root cutting 1. Reference numerals 7, 7, ... Show base formwork support plates fixed on the plate 6. Each of the base form supporting plates 7 is formed in a rectangular flat plate shape, and has an arm portion 7 having a column insertion hole at the center thereof.
A, and frame supporting portions 7B, 7B bent and formed in a substantially U shape at both longitudinal ends of the arm portion 7A.

Reference numeral 8 denotes the base form supporting plates 7, 7, ...
Shown above is a horizontally laid base rebar portion, and the base rebar portion 8 has short base horizontal bars 8A, 8A, ... And long base vertical bars 8B, 8B ,. It has a structure in which it is connected in a lattice shape, and is fixed to the plate 6 via a bolt (not shown).

Reference numeral 9 denotes a base form part which is arranged in the root cutting 1 in a state of covering the base reinforcement part 8. The base form part 9 is a form support part 7B of the base form support plate 7. , 7B. Here, the base mold part 9 has a linear base mold 10, an L-shaped corner corner base mold 11, and a T-shaped connection base mold 12, and each mold 10, 11,
12 is a pair of lower side walls 10 having a linear shape, an L shape, or a T shape.
A, 10A, 11A, 11A, 12A, 12A and the inclined side walls 10B, 11B, 12B which are inclined and rise inward from the upper ends of the respective lower side walls 10A, 11A, 12A, and the inclined side walls 10B, 11B, 12B. Upper side walls 10C, 11C, 12C rising vertically from the upper end of the, and a pair of closing walls 10D, 10D, 11D formed on both ends in the longitudinal direction,
11D, 12D, 12D and the respective closing walls 10D, 11
Upper side wall 10C, 10C, 11 located between D and 12D
Reinforcing wall 10 connected between C, 11C, 12C and 12C
E, 11E, 12E and the respective closing walls 10D, 11D, 12
D and the reinforcing walls 10E, 11E, 12E and the cutout-shaped communication ports 10F, 11F, 12F formed on the lower side and the vertically long horizontal bar fitting grooves 10G, 11G, 12G formed on the upper side.
And cylindrical support portions 10H, 11H, 12H integrally formed on one side of each of the reinforcing walls 10E, 11E, 12E.

Reference numeral 13 denotes a horizontal streak provided between the frame supports 3, 3, .... Each of the transverse lines 13 is a base formwork 10, 1.
It is erected in a state of intersecting with the formwork supporting columns 3, 3, ... In a state of being fitted in the lateral streak fitting grooves 10G, 11G, 12G of 1 and 12.

Next, reference numeral 14 denotes a cloth base mold part arranged in a row on the base mold part 9, and the cloth base mold part 14 has a linear shape, L.
It is composed of a combination of letter-shaped and T-shaped cloth foundation forms 15, 16, 17. Here, each cloth foundation formwork 15, 1
Reference numerals 6 and 17 denote a pair of linear, L-shaped or T-shaped side walls 15A, 15A, 16A, 16A whose lower ends bulge outward so as to fit on the upper ends of the base molds 10, 11, 12. ,
17A, 17A, and step portions 15B, 16B, 17B formed inside the lower ends of the respective side walls 15A, 16A, 17A,
A pair of side walls 15A, 15A, 16A, 16A, 17A,
A pair of closing walls 15 formed at both ends in the longitudinal direction of 17A.
C, 16C, 17C and the respective closing walls 15C, 16C, 1
Notch-shaped communication ports 15D, 16D, and 17D formed in the shape of an ellipse from the middle of the vertical direction of 7C to the lower end, and each closing wall 15
Located between C, 16C, 17C, the side walls 15A, 16A,
Reinforcing walls 15E, 16E, 17E continuously provided between 17A,
Each closing wall 15C, 16C, 17C and reinforcing wall 15E, 1
Horizontally fitting groove 15 formed vertically on the upper side of 6E and 17E
F, 16F, 17F and respective reinforcing walls 15E, 16E, 17
Cylindrical support parts 15G, 16 integrally formed on one side of E
It is composed of G and 17G. And the above straight line,
The L-shaped and T-shaped cloth base molds 15, 16 and 17 are integrally formed of recycled plastic.

Reference numerals 18, 18, ... Show top end finishing plates fixed to the upper end of the cloth base form part, and each top end finishing plate 18 is a rectangular flat plate made of recycled plastic. The anchor bolts 19, 19,
... are planted so as to project upward. Reference numeral 20 designates a remodeling mouth, and the remodeling mouth 20 comprises the base mold 10 and the cloth foundation mold 1
The frame 20A is fitted in the rectangular opening formed in the frame 5. Reference numeral 21 denotes an underfloor ventilation port provided on the upper side of the cloth foundation form 14, and the underfloor ventilation port 21 is formed by fitting a frame body 21A into a horizontally long opening formed in the cloth foundation form 15. ing.

The present embodiment is constructed as described above. Next, the method for forming the cloth base using the cloth base molded body will be described in detail. First, the root cutting 1 is excavated on the site A. The depth of the root cutting 1 is the same as when forming a conventional cloth foundation. Once the root cutting 1 has been formed, the split stones 2A, 2A, ... on the bottom surface 1A of the root cutting 1
・ Introduce, and uniformly compact and compact to form a split stone layer 2.

Next, the mold supports 3, 3, ...
Are erected at the center in the width direction and spaced apart by a predetermined distance in the longitudinal direction. In this case, first, each jack portion 4 is driven from the split stone layer 2 into the ground, and the elevating lever 4C is rotated to adjust the level adjusting plate 4B so as to form the same plane.
The plate 6 is horizontally installed on the level adjusting plates 4B, 4B, ... Lined up, and the supporting column 5 is provided on the upper end of the pivot 4A.
Is installed by screwing.

As described above, the form supports 3, 3, ...
After the stand is erected, the base reinforcement 8 preassembled at the factory on the plate 6 is fixed by bolts and arranged. After that, the base form part 9 is placed on the base form supporting plates 7, 7, ... Then, the horizontal streak fitting grooves 10G, 11G, 1 of the base frame 9 are formed.
The horizontal bar 13 is provided in 2G. As a result, the support columns 5 and the base mold part 9 are held vertically.

Next, the cloth foundation mold part 1 is placed on the base mold part 9.
Stack 4 That is, the cylindrical support portions 15G, 16G, 17
The support columns 5, 5, ... Are respectively inserted into G and the first-stage cloth foundation molds 15, 16, 17 are fitted and overlapped on the corresponding base molds 10, 11, 12. . Further, the second-stage cloth foundation molds 15, 16, 17 are stacked on the first-stage cloth foundation molds 15, 16, 17 while being inserted into the support columns 5, 5 ,. The cloth base form parts 14 having a desired height are arranged in a row. Then, after fitting the frame body 20A for the revision opening 20 and the frame body 21A for the underfloor ventilation opening 21 into the openings of the mold parts 9 and 14, the revision opening 20 and the underfloor ventilation opening 21 are not shown in the figure. I will temporarily block by. By the above work,
The assembling of the base mold part 9 and the cloth foundation mold part 14 is completed.

Thereafter, the soil is backfilled and the embankment is performed from the inside of the root cutting 1 to the upper side on both sides of the outer surface of each of the mold parts 9 and 14.
By this backfilling and embankment, it is possible to prevent the phenomenon of the mold parts 9 and 14 being caught when pouring fresh concrete. If a sufficient space for embankment cannot be secured, a reinforcing material may be used together. Next, the ready-mixed concrete A is poured from the base form part 9 to the cloth base form 14. The poured ready-mixed concrete A wraps and hardens the support columns 5, the plates 6, the base reinforcements 8, the horizontal reinforcements 13 and the like, and as a result, the formed fabric foundation can have extremely high strength.

After pouring the ready-mixed concrete A up to the upper end of the cloth foundation form 14, the top end finishing plates 18 are fitted and lined up on the upper end of the cloth foundation form 14. As a result of the lower end side of the anchor bolts 19 penetrating through the top end finishing plate 18 being inserted into the fresh concrete, the top end finishing plate 18 is firmly held by the hardened concrete.

After the poured concrete is hardened, the embankment is removed, and the closing plate that has closed the re-entrant opening 20 and the underfloor ventilation opening 21 is removed, thereby completing the work of forming the cloth foundation.

This embodiment is as described above, and the disposable molds 20A and 21A for forming the reforming opening 20 and the underfloor ventilation opening 21 are fitted to the base molding portion 9 and the cloth foundation molding portion 14, respectively. Since it is configured to do so, it is possible to eliminate the frame body removing work and the chipping work after the concrete is hardened.

Further, since the base mold part 9 and the cloth base mold part 14 of this embodiment are made of recycled plastic, industrial waste can be reused and the manufacturing cost can be reduced. Moreover, the conventional finish coating can be eliminated.

Further, when a top end finishing plate without anchor bolts 19 is used, the base placed on the top end finishing plate and a frame 21A of the underfloor ventilation port 21 are sandwiched by a substantially U-shaped metal. The members may be integrally fitted, and the bolts may be inserted into the opposing tip sides of the sandwiching member and the nuts may be fastened.

Furthermore, in this embodiment, each cloth foundation form 1
The lower side of 5, 16, 17 is the base formwork 10, 11, 1
2 or other cloth base molds 15, 16 and 17 are fitted so as to cover the upper edges thereof, but the base mold part 9, the cloth base mold part 14 and the cloth base mold part 14 are fitted together. When these are done, each of these base molds 10 and 1 is formed so that the outer surface becomes flat.
You may change the connection structure of 1, 12 and the cloth foundation formwork 15, 16, 17. FIG. In a cold region, a heat insulating material may be attached to the inner surface of the mold part in advance.

[0032]

Since the formwork-integrated cloth foundation and the method for forming the formwork-integrated cloth foundation according to the present invention are constructed as described above, the following effects can be obtained. Since the entire cloth foundation is formed by one-time pouring of concrete, it is possible to obtain a cloth foundation with uniform strength and to significantly shorten the construction period. Since the pre-formed base formwork and fabric base formwork are used, the work such as positioning and dimension adjustment can be minimized, and a fabric base with high dimensional accuracy can be obtained. Therefore, it is possible to eliminate the hanging work which is conventionally required. Since the base formwork and cloth foundation formwork are disposable,
There is no need to dismantle and clean the formwork for reuse,
The storage location can be eliminated. The base reinforcement is locked to the form support, and the horizontal reinforcement is engaged with the form support and the base form or the cloth foundation form, so the reinforcement can be made accurately and when placing concrete. It is possible to reliably prevent the disorder of the bar arrangement that tends to occur. By using the top finishing plate, the work of finishing the mortar on the top, which has conventionally required skill, can be eliminated. By using the top finishing plate with the anchor bolts planted, the required number of anchor bolts can be vertically arranged in a row in the correct position, and as a result, the base can be assembled quickly. . As a result of reducing the number of steps as compared with the conventional technique, the construction period can be significantly shortened, and the influence of weather and the like can be eliminated, so that process control can be accurately performed. Both sides of the outer surface of the base formwork and the cloth foundation formwork are supported by the backfilled soil and the embankment, so it is possible to prevent the formwork from encroaching when pouring fresh concrete, and to reinforce the conventional reinforcement material. Also, the assembling and disassembling work thereof can be eliminated.

[Brief description of drawings]

FIG. 1 is an external perspective view of a formwork-integrated cloth foundation according to an embodiment of the present invention.

FIG. 2 is an external perspective view showing the process of assembling the form-integrated cloth foundation.

FIG. 3 is a vertical cross-sectional view of a form-integrated cloth foundation.

FIG. 4 is an explanatory view showing a state in which a mold support is erected in the root cutting.

FIG. 5 is a partial plan view of a mold support.

FIG. 6 is a partial perspective view showing the internal structure of a mold-integrated cloth foundation.

FIG. 7 is a plan view of a corner corner base mold.

FIG. 8 is a front view of a corner corner base mold.

FIG. 9 is a front view of a connecting base form.

FIG. 10 is a plan view of a connecting base form.

FIG. 11 is a plan view of a straight cloth foundation mold.

FIG. 12 is a sectional view taken along line XII-XII in FIG.

FIG. 13 is a perspective view showing a cloth foundation mold for corners with a part thereof broken away.

FIG. 14 is a front view of a cloth foundation formwork for connection.

FIG. 15 is a plan view of a cloth foundation mold for connection.

[Explanation of symbols]

 1 Negiri 2 Split quarry stone layer 3 Formwork support 7 Base formwork support plate 8 Base reinforcement part 9 Base formwork part 13 Lateral line 14 Cloth foundation formwork part 18 Top finish plate 19 Anchor bolt A Ready-mixed concrete

Claims (3)

[Claims] 1. A plurality of formwork supports 3 which are provided with a base formwork support plate 7 adjustable in the height direction, and which are erected at the center in the width direction of the root cutting 1 and spaced apart in the longitudinal direction. Each formwork support
3 located on the lower side of the base reinforcement portion 8 for distribution設固wear lattice shape between the mold frame support 3, horizontally to the base mold support plate 7 so as to cover the base reinforcement portion 8 a base mold part 9 arrayed to the root switch 1 in supported state, the lateral stripe 13 extended between the mold support member 3 is positioned above the base mold part 9, lateral muscle 13 And a cloth foundation form part that is stacked on the base form part 9 while being engaged with the form support 3
14 , a raw concrete A that is cast from the cloth base mold part 14 into the base mold part 9 , and a rectangular top end finishing plate 18 fixed to the upper end of the cloth base mold part 14. Formwork-integrated cloth foundation. 2. The formwork-integrated cloth foundation according to claim 1, wherein a plurality of anchor bolts 19 are spaced apart from each other in a longitudinal direction on the top end finishing plate 18 so as to project on both upper and lower surfaces. 3. A method for forming a mold-integrated cloth foundation comprising the following steps; (1) a step of excavating a root cutting 1 having a predetermined depth on a site, (2) a uniform bottom surface of the root cutting 1. A step of forming the split stone layer 2 , (3) a plurality of formwork supports 3 provided with a base formwork support plate 7 adjustable in the height direction, in the widthwise center of the root cutting 1 , and in the longitudinal direction (4) Supporting the base form on the lower side of the form support 3
A step of arranging a lattice-shaped base reinforcing bar portion 8 in the root cutting 1 located above the plate 7 , (5) the base reinforcing bar portion 8 in the state of being engaged with the mold support 3 ; A step of arranging the base mold parts 9 on the base mold support plate 7 so as to cover them, (6) laying a horizontal streak 13 between the mold frame supports 3 located above the base mold parts 9 And (7) stacking a plurality of stages of cloth foundation form parts 14 on the base form part 9 in a state of being engaged with the form support 3 and forming cloth base forms 15 of each stage , A step of arranging the horizontal streaks 13 in 16 and 17 in a state of intersecting with the form support 3 ; (8) backfilling of soil on both outer side surfaces of the base form 9 and the cloth foundation form 14 ; step for embankment, (9) after backfilling and embankment soil, a step of pouring the fresh concrete a to the base mold part 9 and fabric foundation mold portion 14 (10) after casting of the raw concrete A, the step of laying the Tentan finishing plate 18 to the upper end of the fabric foundation formwork section 14, (11) after curing of the raw concrete A, the fabric foundation formwork section 14 The step of removing the embankment from both sides of the outer surface.