JP2021031981A - Mat foundation work method, and formwork fixing device - Google Patents

Mat foundation work method, and formwork fixing device Download PDF

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JP2021031981A
JP2021031981A JP2019154178A JP2019154178A JP2021031981A JP 2021031981 A JP2021031981 A JP 2021031981A JP 2019154178 A JP2019154178 A JP 2019154178A JP 2019154178 A JP2019154178 A JP 2019154178A JP 2021031981 A JP2021031981 A JP 2021031981A
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formwork
base portion
solid foundation
rising
forming
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廣昭 天野
Hiroaki Amano
廣昭 天野
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Amano Hiroaki
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Amano Hiroaki
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Abstract

To provide a mat foundation work method capable of forming a base portion and a foundation rising portion integrally and simultaneously, which comprises convenience where a workman can easily perform a work of adjusting height of a rising portion and width of a base portion at a site.SOLUTION: In a mat foundation work method forming concrete of a base portion and a rising portion by single concrete installation, a wooden formwork (30) is used as a formwork for forming an outside wall surface of the rising portion provided at an outer periphery of the base portion, and a metal formwork (50) is used as a formwork for forming an inside wall surface of the rising portion provided at the outer periphery of the base portion. The metal formwork (50) is fixed to the wooden formwork (30) by using a formwork fixing device (1).SELECTED DRAWING: Figure 6

Description

本発明は、ベタ基礎工事方法及び型枠固定具に関する。 The present invention relates to a solid foundation construction method and a formwork fixture.

従来、ベース部と基礎立上部とを一時に一体的に形成することができるベタ基礎工事方法がある。 Conventionally, there is a solid foundation construction method in which the base portion and the rising portion of the foundation can be integrally formed at one time.

特開平１０−１４７９４４公報Japanese Unexamined Patent Publication No. 10-147944

しかし、特許文献１に示す技術では、型枠に金属製型枠板３２、３３を用いる構成であるため、基礎立上部の高さが、予め準備した型枠の高さにあわない場合において、現場にて職人が容易に立上部の高さやベース部の厚みを調整する作業が行えないという問題がある。 However, in the technique shown in Patent Document 1, since the metal formwork plates 32 and 33 are used for the formwork, when the height of the upper part of the foundation does not match the height of the formwork prepared in advance, There is a problem that the craftsman cannot easily adjust the height of the rising portion and the thickness of the base portion at the site.

本発明の目的は、このようなことに鑑みてなされたものであり、現場にて職人が容易に立上部の高さやベース部の厚み調整する作業が行える利便性を備えたベース部と基礎立上部とを一時に一体的に形成することができるベタ基礎工事方法を提供することである。 An object of the present invention has been made in view of the above, and the base portion and the foundation portion having the convenience that a craftsman can easily adjust the height of the rising portion and the thickness of the base portion at the site. It is to provide a solid foundation construction method that can form the upper part integrally at one time.

上記目的は、
ベース部と立上部のコンクリートを１回のコンクリート打ちで形成するベタ基礎工事方法であって、
前記ベース部の外周に設ける前記立上部の外側の壁面を形成するための型枠は、木製型枠（３０）を用い、
前記ベース部の外周に設ける前記立上部の内側の壁面を形成するための型枠は、金属製型枠（５０）を用い、
前記金属製型枠（５０）は、前記木製型枠（３０）に型枠固定具（１）を用いて固定する、ベタ基礎工事方法、
によって達成される。 The above purpose is
It is a solid foundation construction method that forms the concrete of the base part and the rising part with one concrete casting.
A wooden formwork (30) is used as a formwork for forming the outer wall surface of the rising portion provided on the outer periphery of the base portion.
A metal mold (50) is used as a mold for forming the inner wall surface of the rising portion provided on the outer periphery of the base portion.
The metal formwork (50) is fixed to the wooden formwork (30) by using a formwork fixture (1), which is a solid foundation construction method.
Achieved by.

また、上記目的は、
前記型枠固定具（１）は、前記木製型枠（３０）に孔をあけて、該孔に該型枠固定具（１）を嵌合して固定する、上記のベタ基礎工事方法、
によって達成される。 The above purpose is
The formwork fixture (1) is the above-mentioned solid foundation construction method, wherein a hole is made in the wooden formwork (30), and the formwork fixture (1) is fitted and fixed in the hole.
Achieved by.

また、上記目的は、
前記ベース部の外周以外に設ける前記立上部を形成するための型枠は、金属製型枠（５０）を用いる、上記のベタ基礎工事方法、
によって達成される。 The above purpose is
The solid foundation construction method described above, wherein a metal formwork (50) is used as the formwork for forming the rising portion provided on the outer periphery of the base portion.
Achieved by.

本発明によれば、現場にて職人が臨機応変に型枠の高さを調整する作業が行える利便性を備えたベース部と基礎立上部とを一時に一体的に形成することができるベタ基礎工事方法を提供することができる。 According to the present invention, a solid foundation capable of temporarily and integrally forming a base portion and a foundation rising portion having the convenience of allowing a craftsman to flexibly adjust the height of the formwork on site. A construction method can be provided.

本発明の実施形態による型枠固定具１を説明する図である。It is a figure explaining the formwork fixture 1 by embodiment of this invention. 本発明の実施形態による型枠固定具１を説明する図である。It is a figure explaining the formwork fixture 1 by embodiment of this invention. 本発明の実施形態による型枠固定具１の使用例を説明する図である。It is a figure explaining the use example of the formwork fixture 1 by embodiment of this invention. 本発明の実施形態による型枠固定具２０を説明する図である。It is a figure explaining the formwork fixture 20 by embodiment of this invention. 本発明の実施形態による型枠固定具２０を説明する図である。It is a figure explaining the formwork fixture 20 by embodiment of this invention. 本発明の実施形態による型枠固定具１、２０の使用例を説明する図である。It is a figure explaining the use example of the formwork fixtures 1 and 20 by embodiment of this invention.

以下、図１〜図６を用いて、本発明の実施形態によるベース部と基礎立上部とを一時に一体的に形成することができるベタ基礎工事方法を説明する。なお、以下の全ての図面においては、理解を容易にするため、各構成要素の寸法や比率などは適宜異ならせて図示する場合がある。 Hereinafter, with reference to FIGS. 1 to 6, a solid foundation construction method capable of integrally forming the base portion and the foundation rising portion according to the embodiment of the present invention will be described. In all the drawings below, in order to facilitate understanding, the dimensions and ratios of the respective components may be appropriately different from each other.

図１は、本発明の実施形態によるベタ基礎工事方法にて用いる型枠固定具１の正面図であり、図２は、型枠固定具１の上面図である。型枠固定具１は、棒状の本体部３、本体部３の一端に設けられた後述する金属製型枠５０を嵌めて立たせる型枠立設部５、本体部３の他端に設けられたねじ切加工が施された嵌合部６、後述する木製型枠３０に設けられた孔に嵌合部６を嵌めてナットを用いて木製型枠３０に挟持させる挟持部７、及び本体部３に連結、あるいは一体形成され、木製型枠３０にあてることで本体部３を補助的に支持する本体部支持部８とで構成される。本実施形態の型枠固定具１は、鉄製であり、少なくとも、嵌合部６と本体部支持部８のコンクリート基礎から露出する箇所付近についてはさび止め処理を施している。なお、型枠固定具１は、鉄以外の金属を用いてもよいし、剛性の高いプラスチックや木材やセラミックス等を用いてもよい。 FIG. 1 is a front view of the formwork fixture 1 used in the solid foundation construction method according to the embodiment of the present invention, and FIG. 2 is a top view of the formwork fixture 1. The formwork fixture 1 is provided at the rod-shaped main body 3, the formwork standing portion 5 for fitting and standing the metal mold 50 described later provided at one end of the main body 3, and the other end of the main body 3. A fitting portion 6 that has been threaded, a holding portion 7 that fits the fitting portion 6 into a hole provided in the wooden form 30 described later and is sandwiched between the wooden form 30 using a nut, and a main body portion 3. It is composed of a main body support portion 8 that is connected to or integrally formed with the wooden mold 30 and auxiliaryly supports the main body 3 by hitting the wooden form 30. The formwork fixture 1 of the present embodiment is made of iron, and at least the vicinity of the fitting portion 6 and the main body portion supporting portion 8 exposed from the concrete foundation is subjected to rust prevention treatment. The formwork fixture 1 may be made of a metal other than iron, or may be made of highly rigid plastic, wood, ceramics, or the like.

図３は、本発明の実施形態によるベース部と立上部のコンクリートを１回のコンクリート打ちで形成するベタ基礎工事方法を用いて形成したベタ基礎１００の外周部の立上部の断面状態を示している。図３に示す点線部は、コンクリート鉄筋を示している。 FIG. 3 shows a cross-sectional state of the rising portion of the outer peripheral portion of the solid foundation 100 formed by using the solid foundation construction method in which the concrete of the base portion and the rising portion is formed by one concrete casting according to the embodiment of the present invention. There is. The dotted line portion shown in FIG. 3 indicates a concrete reinforcing bar.

図３に示すように、本実施形態によるベタ基礎工事方法によれば、ベタ基礎の外周部の立上部の型枠を立設させるのに型枠固定具１を用い、立設させた型枠を上端で固定させるのに型枠固定具１０を用いている。ベタ基礎の外周部の立上部の外側の壁面を形成するための型枠は木製型枠３０を用い、ベタ基礎の外周部の立上部の内側の壁面を形成するための型枠は金属製型枠５０を用いる。なお、型枠固定具１の下部に薄板状の型枠をあて込み、コンクリート打ちを行うようにしてもよい。このようにすることで、立上の内側をきれいに仕上げることが容易となる。 As shown in FIG. 3, according to the solid foundation construction method according to the present embodiment, the formwork fixture 1 is used to erect the formwork on the rising portion of the outer peripheral portion of the solid foundation, and the formwork is erected. The formwork fixture 10 is used to fix the shape at the upper end. A wooden formwork 30 is used as a formwork for forming the outer wall surface of the rising portion of the outer peripheral portion of the solid foundation, and a metal mold is used for forming the inner wall surface of the rising portion of the outer peripheral portion of the solid foundation. The frame 50 is used. A thin plate-shaped formwork may be applied to the lower part of the formwork fixture 1 to cast concrete. By doing so, it becomes easy to finish the inside of the rise cleanly.

図４は、本発明の実施形態によるベタ基礎工事方法にて用いる型枠固定具２０の正面図であり、図５は、型枠固定具２０の右側面図である。型枠固定具２０は、型枠固定具２０は、ベタ基礎の外周部の内側の立上部を形成するために用いられる。型枠固定具２０は、土台２１、金属製型枠５０を嵌めて立たせる第１型枠立設部２５ａ、第２型枠立設部２５ｂを有する型枠立設部２５、及び土台２１と型枠立設部２５とを連結して支持する支持軸２３とで構成される。本実施形態の型枠固定具２０は、鉄製である。なお、型枠固定具２０は、鉄以外の金属を用いてもよいし、剛性の高いプラスチックや木材やセラミックス等を用いてもよい。 FIG. 4 is a front view of the formwork fixture 20 used in the solid foundation construction method according to the embodiment of the present invention, and FIG. 5 is a right side view of the formwork fixture 20. The formwork fixture 20 is used to form an inner rising portion of the outer peripheral portion of the solid foundation. The formwork fixture 20 includes a base 21, a first formwork standing portion 25a for fitting and standing a metal formwork 50, a formwork standing portion 25 having a second formwork standing portion 25b, and a base 21. It is composed of a support shaft 23 that connects and supports the formwork standing portion 25. The formwork fixture 20 of the present embodiment is made of iron. The formwork fixture 20 may be made of a metal other than iron, or may be made of highly rigid plastic, wood, ceramics, or the like.

図４に示すように、型枠固定具２０の支持軸２３は、型枠立設部２５の中心に連結し、逆コの字状に左側に折れ曲がっている。これにより、ベース部の縦に走る鉄筋をよける空間が確保されることになる。また、支持軸２３の上端部には型枠立設部２５の高さを調整するためのねじ部が設けられる。 As shown in FIG. 4, the support shaft 23 of the formwork fixture 20 is connected to the center of the formwork standing portion 25 and is bent to the left in an inverted U shape. As a result, a space is secured to avoid the reinforcing bars running vertically in the base portion. Further, a screw portion for adjusting the height of the formwork standing portion 25 is provided at the upper end portion of the support shaft 23.

図６は、本発明の実施形態によるベース部と立上部のコンクリートを１回のコンクリート打ちで形成するベタ基礎工事方法を用いて形成したベタ基礎１００の断面状態を示している。図６に示す点線部は、コンクリート鉄筋を示している。 FIG. 6 shows a cross-sectional state of a solid foundation 100 formed by using a solid foundation construction method in which concrete of a base portion and a rising portion is formed by one concrete casting according to an embodiment of the present invention. The dotted line portion shown in FIG. 6 indicates a concrete reinforcing bar.

図６に示すように、本発明の実施形態によるベタ基礎工事方法においては、ベース部の外周に設けられる立上部の型枠には、木製型枠３０と金属製型枠５０が用いられ、ベース部の外周内側に設けられる立上部の型枠には、金属製型枠５０が用いられる。 As shown in FIG. 6, in the solid foundation construction method according to the embodiment of the present invention, a wooden formwork 30 and a metal formwork 50 are used for the formwork of the rising portion provided on the outer periphery of the base portion, and the base is used. A metal mold 50 is used for the rising mold provided on the inside of the outer periphery of the portion.

本発明の実施形態によるベタ基礎工事方法を用いることで、以下の効果を奏する。
（あ）金属製の型枠のみを用いる場合よりも、コストを低く抑えることができる。
（い）外側の型枠を木製型枠にすることで、職人が現場にて木製型枠の高さを容易に調整する加工を施すことで立上部の高さを調整することが可能である。
（う）ベース部の外周に設ける立上部を形成するための型枠固定具を安価な木製型枠に孔を設けて固定することで、施工の容易性とコスト低下が実現できる。
（え）ベース部の外周に設ける立上部を形成するための型枠固定具を設ける位置を容易に変更することでベース部の厚みの変更が容易であり、汎用性が高い。
（お）３種類の型枠固定具のみを用いることでベース部と立上部のコンクリートを１回のコンクリート打ちで形成することが可能であるため、施工の簡便性、期間の短縮、および低コストが実現できる。
（か）ベース部の外周の内側の立上部には金属製型枠を用いることで、金属性型枠のメリット（作業の確実性や再利用による劣化減等）も享受できる。 By using the solid foundation construction method according to the embodiment of the present invention, the following effects can be obtained.
(A) The cost can be kept lower than when only the metal formwork is used.
(I) By making the outer formwork a wooden formwork, it is possible for craftsmen to adjust the height of the rising part by performing processing to easily adjust the height of the wooden formwork at the site. ..
(C) By providing a hole in an inexpensive wooden formwork and fixing the formwork fixture for forming the rising portion provided on the outer periphery of the base portion, it is possible to realize ease of construction and cost reduction.
(E) The thickness of the base portion can be easily changed by easily changing the position where the formwork fixture for forming the rising portion provided on the outer periphery of the base portion is provided, and the versatility is high.
(E) Since it is possible to form the concrete of the base part and the rising part with one concrete casting by using only three types of formwork fixtures, the construction is easy, the period is shortened, and the cost is low. Can be realized.
(Or) By using a metal formwork on the inner rising part of the outer circumference of the base part, the advantages of the metal formwork (reliability of work, reduction of deterioration due to reuse, etc.) can be enjoyed.

上述の実施形態は、本発明の好適な一例であるので、技術的に好ましい種々の限定が付されているが、本発明の範囲は、上述の説明によって不当に限定されるものではない。また、上述の実施形態で説明される構成の全てが本発明の必須の構成要件ではない。また、上述の実施形態で説明される構成は相互に付け足したり組み合わせたりしてもよい。 Since the above-described embodiment is a preferable example of the present invention, various technically preferable limitations are added, but the scope of the present invention is not unreasonably limited by the above description. Moreover, not all of the configurations described in the above-described embodiments are essential constituent requirements of the present invention. In addition, the configurations described in the above-described embodiments may be added to or combined with each other.

本発明は、木製及び金属製の型枠を用いたベース部と立上部のコンクリートを１回のコンクリート打ちで形成するベタ基礎工事方法のみならず、木製のみ又は金属製のみの型枠を用いたベース部と立上部のコンクリートを１回のコンクリート打ちで形成するベタ基礎工事方法や通常のベース部と立上部のコンクリートを２回のコンクリート打ちで形成するベタ基礎工事方法やこれらのベタ基礎工事方法に用いる型枠固定具においても広く利用可能である。 The present invention uses not only a solid foundation construction method in which the concrete of the base portion and the rising portion using a wooden and metal formwork is formed by one concrete casting, but also a wooden or metal-only formwork. Solid foundation work method to form concrete of base part and rising part with one concrete casting, solid foundation work method to form concrete of normal base part and rising part with two concrete castings, and these solid foundation work methods It can also be widely used in the formwork fixture used for.

１、１０、２０ 型枠固定具
３ 本体部
５、２５ 型枠立設部
６ 嵌合部
７ 挟持部
８ 本体部支持部
３０ 木製型枠
５０ 金属製型枠
１００ ベタ基礎 1, 10, 20 Formwork fixtures 3 Main body 5, 25 Formwork standing part 6 Fitting part 7 Holding part 8 Main body support part 30 Wooden formwork 50 Metal formwork 100 Solid foundation

Claims (3)

ベース部と立上部のコンクリートを１回のコンクリート打ちで形成するベタ基礎工事方法であって、
前記ベース部の外周に設ける前記立上部の外側の壁面を形成するための型枠は、木製型枠を用い、
前記ベース部の外周に設ける前記立上部の内側の壁面を形成するための型枠は、金属製型枠を用い、
前記金属製型枠は、前記木製型枠に型枠固定具を用いて固定する、ベタ基礎工事方法。 It is a solid foundation construction method that forms the concrete of the base part and the rising part with one concrete casting.
A wooden formwork is used as a formwork for forming the outer wall surface of the rising portion provided on the outer periphery of the base portion.
A metal formwork is used as a formwork for forming the inner wall surface of the rising portion provided on the outer periphery of the base portion.
The metal formwork is a solid foundation construction method in which the wooden formwork is fixed to the wooden formwork using a formwork fixture. 前記型枠固定具は、前記木製型枠に孔をあけて、該孔に該型枠固定具を嵌合して固定する、請求項１に記載のベタ基礎工事方法。 The solid foundation construction method according to claim 1, wherein the formwork fixture is fixed by making a hole in the wooden formwork and fitting the formwork fixture into the hole. 前記ベース部の外周以外に設ける前記立上部を形成するための型枠は、金属製型枠を用いる、請求項１または請求項２に記載のベタ基礎工事方法。 The solid foundation construction method according to claim 1 or 2, wherein a metal formwork is used as a formwork for forming the rising portion provided on a portion other than the outer periphery of the base portion.
JP2019154178A 2019-08-26 2019-08-26 Mat foundation work method, and formwork fixing device Pending JP2021031981A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114000537A (en) * 2021-10-18 2022-02-01 上海建工四建集团有限公司 Single-side formwork erecting method suitable for ultra-high outer wall of deep foundation pit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114000537A (en) * 2021-10-18 2022-02-01 上海建工四建集团有限公司 Single-side formwork erecting method suitable for ultra-high outer wall of deep foundation pit

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