JP2008007938A - Foundation construction method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To form a work environment not influenced by a weather or the like and to perform a series of foundation construction works in such a work space. <P>SOLUTION: A lot G for constructing a foundation is surrounded with a tent 1, a series of foundation construction works are conducted in the tent 1, and after concrete is placed in a foundation form 8, the concrete C is cured in the tent 1. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a foundation construction method.

Conventionally, in the construction of foundations for houses, when concrete is placed in the foundation formwork, it is usually avoided during rainy days.
In addition, the concrete placed in the foundation mold is dried in a short time by strong sunlight in summer, so cracks such as shrinkage drying cracks occur in the foundation, and in the winter, the concrete freezes before solidification, There were problems such as not being able to obtain strength.
In order to solve such problems, for example, in Patent Document 1, the upper opening of the foundation mold in which the concrete is placed is covered with a cover, thereby insulating the concrete in the foundation mold from the outside air and keeping it warm. It prevents rainwater and strong sunlight from hitting the concrete before it is solidified, and prevents the concrete from freezing and cracking regardless of the weather.
Japanese Patent Laid-Open No. 11-100995

However, since the above cover is designed to cover the upper opening of the foundation mold after placing the concrete in the foundation mold, for example, during heavy rain or snowfall, the concrete is naturally in the work environment. Has the problem that it cannot be placed.
Therefore, the present invention forms a work environment (space) that is not affected by the weather, etc., and a foundation construction method in which a series of foundation construction work is performed in the work space in addition to placing concrete in the foundation formwork. The purpose is to provide.

  In view of the above problems, the present invention surrounds a site where a foundation is constructed with a tent, performs a series of foundation construction work in the tent, and after concrete placement in the foundation formwork, curing the concrete in the tent. I do.

In short, the present invention surrounds the site where the foundation is constructed with a tent, and by performing a series of foundation construction work in the tent, it is possible to maintain a work space where work can be performed even in rainy weather or snowfall, The foundation construction work can be performed continuously regardless of the weather.
Moreover, it is possible to create a work environment that avoids direct sunlight in the summer and cold in the winter, thereby reducing the burden on the operator and further improving the workability.
In addition, since the construction work and foundations in the tent can be protected, for example, even after the placement into the foundation formwork, the foundation formwork will not be exposed to rain. The reinforced concrete adheres well when the concrete is placed, and the strength of the constructed foundation can be prevented from decreasing.
Furthermore, by completely closing the tent when construction is interrupted, it can be used as a storage place for building materials, tools, and other equipment, and it is possible to prevent outsiders from entering the site.

Then, after placing the concrete in the foundation mold, the concrete is cured in the tent, so that the tent protects the concrete in the foundation mold from direct sunlight, wind and rain, etc. Water loss can be prevented, and cracks can be prevented.
In addition, concrete curing can be performed by keeping the inside of the tent at an appropriate temperature and humidity by using a blower or a humidifier if necessary, or by keeping the tent in the winter to keep the inside of the tent warm. When the concrete placed in the frame is prevented from freezing, and when necessary, the inside of the tent is heated with a jet heater, etc. Depending on the external environment, the concrete can be cured effectively by creating an appropriate curing environment for the concrete.

Embodiments of the present invention will be described below with reference to the drawings.
In the foundation construction method according to the present invention, first, as shown in FIG. 1, a site G on which a foundation is constructed at a construction site such as a house is surrounded by a tent 1.

As shown in FIG. 1, the frame 2 of the tent 1 is a gable shape that includes a mountain-shaped hanging lumber 3 that is inclined to the left and right and a column 4 that is suspended from each of the lower ends of the hanging lumber 3. A plurality of frame members 5 are arranged side by side, and a plurality of girders 6 are installed between the hanging lumbers 3 of the adjacent gable frame members 5.
Although the frame 2 of the tent 1 is not limited to the above-described configuration, the frame 2 having the above-described configuration does not have studs that support the hanging lumber 3 in the enclosed space of the site G. This is better because the frame 2 can be formed relatively easily.

After the frame 2 is formed, the tent curtain material 7 is stretched between the gable frame material 5 and the gable side of the frame 2.
In the tent curtain material 7, the portions corresponding to the gable side and the eaves side of the tent 1 are formed so as to be openable and closable as a banner 7a. It is used as a doorway for building materials, tools, etc., workers' doorways, and vents.

  As described above, after the tent 1 is formed, a series of foundation construction work is performed in the tent 1. In other words, the root cutting work that digs the ground of the site G to build the foundation, the gravel and stones that are laid down and solidified on the bottom of the root to increase the support capacity of the ground, and then disposed of on the ground Construction, formwork for assembling the foundation formwork 8 on the abandoned concrete, rebar construction for placing reinforcing bars in the assembled foundation formwork 8, concrete for placing concrete C in the placed foundation formwork 8 Perform construction in sequence.

In this way, by carrying out a series of foundation construction work in the tent 1, work can be done even in rainy weather or snowfall, and under the tent 1, the summer can avoid strong sunlight and the winter can avoid cold. It will be a good working environment for the workers.
Depending on the working season, weather, construction details, and other conditions, each banner 7a of the tent 1 is completely closed, or some or all of the banners 7a are opened, and the tent 1 has an appropriate working environment. It is made.
Further, when the construction is interrupted, all the banners 7a of the tent 1 are completely closed, so that the inside of the tent 1 can be used as a storage space for tools, building materials, or the like, or an outsider or the like can be prevented from entering the site G. In particular, the reinforcing bars arranged in the foundation form 8 before the concrete work are protected from rain and dew by the tent 1, thereby preventing the reinforcing bars from being rusted.

After concrete work, the concrete foundation is cured in the tent 1. FIG. 2 shows an example of the curing.
The tent 1 is sunshade and wind and rain protection, protects the concrete C placed in the foundation mold 8 from direct sunlight, wind and rain, prevents sudden loss of moisture from the surface of the concrete C, cracks, etc. Preventing the occurrence of

In addition, if necessary, the inside of the tent 1 is maintained at an appropriate temperature and humidity by using a blower or a humidifier (not shown), and is wet-cured.
In particular, in winter, the entire banner 7a is closed to keep the tent 1 warm and prevent the concrete C in the foundation form 8 from freezing.
Also at this time, the tent 1 is supplied with heat by a jet heater (not shown) or the like as necessary to perform heat supply curing.
In this way, the inside of the tent 1 is set to an appropriate curing environment for the concrete C according to the time of foundation construction and the external environment.

  After the curing period of the concrete C, a demolding operation for removing the base formwork 8 is performed, the removed base formwork 8 is taken out from the tent 1, and then the tent 1 is disassembled to complete the foundation construction work. .

It is a perspective view which shows the state which enclosed the site with the tent. It is a simplified perspective view which shows an example of the curing of the concrete foundation in a tent.

Explanation of symbols

1 Tent 8 Foundation formwork C Concrete G Site

Claims (2)

  A foundation construction method characterized by surrounding a site where a foundation is constructed with a tent and performing a series of foundation construction works in the tent. The foundation construction method according to claim 1, wherein the concrete is cured in a tent after the concrete is placed in the foundation formwork.

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