JP2003184310A - Heating and curing method for building foundation - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a heating and curing method for a building foundation capable of efficiently supplying a heated gas to the foundation on the inside without introducing a duct to the inside of the foundation. <P>SOLUTION: A sheet supporting frame is built up upward of the foundation 3 before a form is removed by using at least part of steam introducing pipes 7 having a large number of exhaust nozzles 7a. Steam supply branch hoses 10 branched from steam ducts 11 are connected to the steam introducing pipes 7. Sheets 12 and 13 are covered on the frame and, at the same time, steam is supplied to the steam introducing pipes 7 to make the steam jet out from the exhaust nozzles 7a. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heating and curing method for building foundations.

[0002]

2. Description of the Related Art As a method of constructing the foundation of a building, it is common to assemble a formwork on the land, place concrete in the formwork, and wait for it to dry naturally. In an area where the setting of concrete is relatively slow, such as in cold regions, heat the placed concrete to accelerate hardening,
Attempts have been made to reduce the construction period.

FIG. 7A is an explanatory view showing a conventional heating and curing method for a building foundation. In this heating and curing method, a bellows-shaped steam duct 50 is arranged so as to surround the outermost basic formwork, and the steam supply device 51 to the steam duct 5 are arranged.
0 is supplied with steam, and the steam is blown out from the hole formed in the steam duct 50. Although not shown, a waterproof sheet or a heat insulating sheet covers the entire foundation construction area, and a frame is assembled on the foundation construction area to prevent the sheets from falling. ing.

[0004]

However, in the above-mentioned conventional heating and curing method for building foundations, only the bellows-shaped steam duct 50 is arranged so as to surround the outermost foundation, and the foundation on the inner side is arranged. It cannot supply steam efficiently. On the other hand, as shown in FIG. 7 (b), it is considered that the steam duct 50 is arranged on the inner side of the foundation to guide the steam to the inner side of the foundation. In the construction method in which the steam duct 50 is integrally cast, the steam duct 50 cannot be placed on the soil concrete 53 immediately after the cast.

In view of the above circumstances, the present invention can efficiently supply heated gas to the inner foundation without introducing a duct into the inner foundation, and pour concrete between soils. Even in this case, it is an object of the present invention to provide a building foundation heating curing method capable of heating curing the soil concrete.

[0006]

In order to solve the above-mentioned problems, the building foundation heating and curing method according to the present invention uses a pipe member having an ejection hole as at least a part of the building base before removing the formwork. The sheet supporting frame is assembled to the above, the sheet is covered on the frame, the heating gas is supplied to the pipe member, and the heating gas is blown out from the ejection hole.

With the above structure, the seat supporting frame is assembled above the foundation, and the seat supporting frame also exists inside the foundation. At least a part of the seat supporting frame is provided. Has a pipe member having a jet hole, and since heated gas blows out from the jet hole of this pipe member,
Heating gas can be efficiently supplied to the inner foundation without introducing ducts to the inner side of the foundation, and heating curing is applied to this concrete even when placing it. be able to.

Among the foundations, a leg member that straddles the foundation is arranged on the inner foundation, and a member that serves as the ridge of the frame is horizontally mounted on the leg member, and the member that serves as the ridge is the uppermost member. It is good to arrange it in an inclined manner. According to this, rainwater can be prevented from collecting on the seat. Further, even if the supplied steam as the heating gas cools and becomes water drops on the back surface side of the sheet, the water drops are guided to the outside of the foundation.

It is preferable that the pipe member having the ejection holes is inclined with the side of the member serving as the ridge being the uppermost side. According to this, when the steam as the heating gas supplied to the pipe member cools and becomes water, this water flows to the side opposite to the ridge in the pipe member arranged in an inclined manner, It is possible to prevent the situation where the water flows and leaks to the inside.

It is preferable that the pipe member is engaged with the horizontal member by a hook provided at the tip of the pipe member having the ejection hole. According to this, it becomes possible to install the pipe member even if the worker does not enter the inside of the foundation (even when applying the soil concrete).

It is preferable that the pipe member having the ejection hole is arranged so that the ejection hole is located on the lateral side. According to this, when the steam as the heating gas supplied to the pipe member cools and becomes water, the water can be prevented from dripping from the ejection hole.

As the tube member having the ejection hole, it is preferable to use a tube member having an outer tube and an inner tube and having a variable length.
According to this, various building shapes and site shapes can be dealt with.

As the pipe member having the ejection holes, a pipe member having a T-shape may be used.

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION A heating and curing method for a building foundation according to an embodiment of the present invention will be described below with reference to FIGS.

FIG. 1 shows a state in which concrete to be the foundation 3 is placed in the formwork 2 arranged on the land 1. In this example, the rising portion 31 of the foundation 3 and the soil concrete 32 are cast integrally. Leg member 4 is foundation 3
It is arranged so as to straddle the rising portion 31 (31a) on the inner side of, and the rod-shaped member 5 serving as a ridge is laterally mounted on the leg member 4. Specifically, as shown in FIG. 2, a plurality of leg members 4 are arranged along the rising portion 31a at predetermined intervals, and the rod-shaped members 5 are connected by the fasteners provided on the upper portion thereof. There is. In the case of placing the soil concrete 32, for example, by disposing the tubular member 6 into which the lower end portion of the leg member 4 is inserted, it is possible to prevent the lower end portion from being fixed by the soil concrete 32. can do. Alternatively, a columnar member may be arranged instead of the tubular member 6, and the lower end portion of the leg member 4 may be placed on the upper end surface of this columnar member. Alternatively, the leg member 4
The lower ends of the legs may be formed so as to be separable, and the separated portions may be left in the soil concrete 32. on the other hand,
If the soil concrete 32 is not placed, the above-mentioned tubular member and the like are unnecessary.

After connecting the rod member 5 to the leg member 4,
As shown in FIG. 3, the work of hooking one end side of the steam introducing pipe 7 on the rod-shaped member 5 is performed. In this embodiment, as shown in FIG. 4, a hook member 9 is provided on one end side of the steam introduction pipe 7, and the hook member 9 is used to hook the steam introduction pipe 7 on the rod-shaped member 5. The steam introducing pipe 7 that has been stretched over is in an inclined arrangement in which the rod-shaped member 5 side is the highest and the outer side of the foundation is positioned lower. When the support rods 8 are arranged outside the foundation and the other end of the steam introducing pipe 7 is supported by the support rods 8, the arrangement height of the support rods 8 should be smaller than the arrangement height of the rod-shaped members 5. Is also lowered to secure the inclined arrangement of the steam introduction pipe 7.

A large number of jet outlets 7a ... Are formed at predetermined intervals in the steam introducing pipe 7. The spouts 7a are located on the left and right (lateral side) in a state where the steam introducing pipe 7 is hung over the rod-shaped member 5 using the hook member 9.

A steam supply branch hose 10 is attached to the other end of the steam introducing pipe 7. This steam supply branch hose 10
Is a branch from the steam duct 11. The steam duct 11 is arranged on the ground so as to surround the outer periphery of the foundation. Steam is supplied to the steam duct 11 from a steam supply device (not shown). The steam duct 11 also has a jet port (not shown).

By connecting the leg member 4, the rod member 5, the steam introducing pipe 7, the supporting rod member 8 and the like, the seat supporting frame is assembled. First, the blue sheet 12 is put on the sheet supporting frame, and the heat insulating sheet 13 is put on the blue sheet 12. Since the steam introducing pipes 7 which constitute the frame for supporting the seat are arranged in an inclined position so that they are located lower toward the outside of the foundation, these seats 12 are
・ 13 will also be positioned lower toward the outside of the foundation. Then, the net 14 is covered on the heat insulating sheet 13, and the end of the net 14 is fixed to the ground by the pile 15. After such work, the steam supply device 51 is driven to transfer steam to the steam duct 11
By supplying the steam to the steam introducing pipe 7, the steam is blown out from the jet port 7a and is uniformly supplied to the inside of the foundation.

In this way, the seat supporting frame is assembled on the base 3, and this seat supporting frame exists also on the inner side of the base 3, and the jet outlet 7a is provided in this seat supporting frame. Since there is a steam introduction pipe 7 that has, and the steam blows out from the jet port 7a of this steam introduction pipe 7,
It is possible to efficiently supply steam to the foundation 3 on the inner side without introducing the steam duct 11 to the inner side of the foundation 3,
Even when the soil concrete 31 is cast, the soil concrete 31 can be heated and cured.

Since the seats 12 and 13 are positioned lower toward the outside of the foundation, it is possible to prevent rainwater from collecting on the seat, and further, the supplied steam cools to form water drops on the back surface side of the seat. Even so, this water droplet will be guided to the outside of the foundation. Further, since the steam introducing pipe 7 has an inclined arrangement in which the rod-shaped member 5 side is the uppermost position and is located lower toward the outside of the foundation, when the steam supplied to the steam introducing pipe 7 becomes cold and becomes water, this water is inclined. It is possible to prevent a situation in which the water flows into the steam introducing pipe 7 arranged to the side opposite to the rod-shaped member 5 serving as the ridge, and the water flows and leaks to the inner side of the foundation 3.

Further, since the hook member 9 is provided on one end side of the steam introducing pipe 7 and the steam introducing pipe 7 is hooked on the rod-shaped member 5 by using this hook member 9, the worker is allowed to use the inner side of the foundation ( The steam introducing pipe 7 can be installed without entering the place where the soil concrete 32 is placed.

Further, the steam inlet pipes 7 are laid on the left and right (sideways) in a state where the steam inlet pipes 7 are hung over the rod-shaped member 5 by using the hook members 9, so that the steam inlet pipes 7 are It is possible to prevent the water from dripping from the ejection ports 7a ... When the steam supplied to the water cools and becomes water.

In FIG. 5A, a steam introducing pipe 17 having a substantially T shape is used, and the steam introducing pipe 17 is bridged between the rising portions 31 of the foundation 3. The steam introducing pipe 17 has a T-shaped joint portion 17a at approximately the middle thereof,
The steam supply branch hose 10 is connected to the T-shaped joint portion 17a. The steam supply branch hose 10 is bound to a support rod member 18 connected to a steam introduction pipe 17, and the binding prevents the hang down. The other end of the support rod member 18 is connected to, for example, the support rod member 8 described above. As shown in FIG. 5 (b), the T-shaped joint portion 17 a has an ejection port 17 b which is positioned straight with respect to the ejection port of the steam supply branch hose 10. Steam will blow out vigorously from this jet 17b,
It is possible to compensate for the shortage of steam blown out in the steam introduction pipe 7.

FIG. 6 (a) shows an expandable vapor introducing pipe 2
0 is shown, and the support rod member 21 which is expandable and contractible is shown in FIG. The steam introducing pipe 20 is composed of an inner pipe 20a and an outer pipe 20b, and jet outlets 20c ... Are formed at equal pitches in each. By setting the vapor introducing pipe 20 to an appropriate length, aligning the jet ports 20c of the inner pipe 20a and the outer pipe 20b, and inserting the pin 20d, the set length can be fixed. The support rod member 21 is composed of an inner pipe 21a and an outer pipe 21b, and through holes are formed at predetermined intervals on the side surface of the outer pipe 21b. A nut 21c is fixed to the through hole forming portion by welding. There is. Support rod member 2
1 is set to an appropriate length, and the nut 21c is attached to the thumbscrew 21d.
By screwing in, the set length can be fixed.
Various building shapes and site shapes can be accommodated by using the expandable steam introducing pipe 20 and the supporting rod member 21.

Although steam is used as the heating gas in the above example, the present invention is not limited to this, and heating air may be used. Further, although the steam introducing pipe is used as a part of the seat supporting frame, it is possible to configure the entire seat supporting frame by the steam introducing pipe.

[0027]

As described above, according to the present invention, there is a pipe member having an ejection hole in at least a part of the seat supporting frame assembled above the foundation, and heating is performed from the ejection hole of the pipe member. Since gas blows out, it is possible to efficiently supply heated gas to the inner foundation without introducing ducts to the inner side of the foundation, and even when placing concrete into the foundation, Can be heated and cured. Moreover, since the frame for supporting the sheet fulfills the function of blowing the heated gas, no extra work is required for blowing the heated gas, and the building foundation can be efficiently heated and cured.

[Brief description of drawings]

FIG. 1 is an explanatory view showing a heating and curing method for a building foundation according to an embodiment of the present invention.

FIG. 2 is a perspective view showing a state where leg members are arranged on a foundation rising portion.

FIG. 3 is a perspective view showing a state in which a steam introducing pipe is stretched over a rod-shaped member horizontally mounted on a leg member.

FIG. 4 is an enlarged perspective view showing a hook at the tip of the steam introducing pipe.

FIG. 5 (a) is a perspective view showing a state in which a T-shaped steam introducing pipe is arranged at the foundation rising portion, and FIG. 5 (b) is a sectional view of the T-shaped steam introducing pipe.

FIG. 6A is a perspective view of an expandable steam introducing pipe, and FIG. 6B is a perspective view of an expandable support rod member.

FIG. 7 is a diagram showing a conventional example, FIG. 7A is an explanatory diagram of a heating and curing method for a building foundation, and FIG. 7B is a partially enlarged view.

[Explanation of symbols]

3 basics 4 leg members 5 Bar-shaped member 7 Steam introduction pipe 7a spout 9 Hook members 10 Steam supply branch hose 11 steam duct

Claims (7)

[Claims] 1. A sheet supporting frame is assembled above a foundation before mold removal by using a tube member having an ejection hole in at least a part thereof, a sheet is covered on the frame, and heated gas is applied to the tube member. A heating and curing method for a building foundation, which comprises supplying and blowing heated gas from the ejection holes. 2. The heat curing construction method for a building foundation according to claim 1, wherein a leg member straddling the foundation is arranged on an inner foundation of the foundation, and the frame ridge is formed on the leg member. A heating and curing method for a building foundation, characterized in that the members are laid horizontally, and the sheet is inclined with the side of the member serving as the ridge facing upward. 3. The heating and curing method for a building foundation according to claim 2, wherein the pipe member having the ejection hole is arranged so as to be inclined with the side of the member serving as the ridge being the uppermost side. Curing method. 4. The heating and curing method for a building foundation according to claim 1, wherein the pipe member is a horizontal member by a hook provided at a tip of the pipe member having the ejection hole. A heating and curing method for building foundations characterized by engaging. 5. The method for heating and curing a building foundation according to any one of claims 1 to 4, wherein the pipe member having the ejection holes is arranged so that the ejection holes are located laterally. Heat curing method for building foundation. 6. The heating and curing method for a building foundation according to claim 1, wherein the pipe member having the ejection holes has a variable length consisting of an outer pipe and an inner pipe. A heat curing method for building foundations, characterized by using. 7. The building foundation heating and curing method according to any one of claims 1 to 6, wherein the pipe member having the ejection hole has a T-shaped pipe line. Building curing method for building foundation.