JPH111930A - Foundation constructing method - Google Patents
Foundation constructing methodInfo
- Publication number
- JPH111930A JPH111930A JP15369397A JP15369397A JPH111930A JP H111930 A JPH111930 A JP H111930A JP 15369397 A JP15369397 A JP 15369397A JP 15369397 A JP15369397 A JP 15369397A JP H111930 A JPH111930 A JP H111930A
- Authority
- JP
- Japan
- Prior art keywords
- foundation
- formwork
- partition
- deep
- bottom plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Foundations (AREA)
Abstract
Description
【0001】[0001]
【産業上の利用分野】本発明は、住宅等の建物の基礎の
施工方法、より詳しくは、建物外周において地中深くま
で延びる深基礎と、該深基礎より浅い位置まで延びる間
仕切り基礎とを有する基礎の施工方法に関するものであ
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of constructing a foundation for a building such as a house, and more particularly, to a deep foundation extending deep into the ground at the periphery of the building, and a partition foundation extending to a position shallower than the deep foundation. It relates to the method of construction of the foundation.
【0002】[0002]
【従来の技術】図7に従来の基礎構造を示す。建物外周
の深基礎1は、例えば、下端部における広幅のフーチン
グ1aの上面までの高さHが1800mm程度と地中深くまで
延びており、この深基礎1の内側面側に、深基礎1より
浅い位置まで延びる間仕切り基礎2が深基礎1と直交す
るように接合されている。間仕切り基礎2の下端部に
は、断面略半円状で凸部2aと凹部2bを交互に有する
フーチング2cが設けられるとともに、深基礎1との接
合部において、間仕切り基礎2から同一厚さで深基礎1
のフーチング1aに向かって下垂するコーナ連結部2d
が設けられている。2. Description of the Related Art FIG. 7 shows a conventional basic structure. The deep foundation 1 on the outer periphery of the building extends deep into the ground, for example, with a height H to the upper surface of the wide footing 1a at the lower end of about 1800 mm. A partition foundation 2 extending to a shallow position is joined so as to be orthogonal to the deep foundation 1. At the lower end of the partition foundation 2, a footing 2 c having a substantially semicircular cross section and having alternately convex portions 2 a and concave portions 2 b is provided, and at the joint with the deep foundation 1, the same depth from the partition foundation 2 with the same thickness. Basic 1
Corner connecting portion 2d hanging down toward the footing 1a
Is provided.
【0003】図8に上記基礎を施工するための型枠の組
立状態を示す。地盤を掘削してなる凹部3内に深基礎1
用の内外1対の鋼製型枠4が配設されて鉄筋ベース5上
に載置されるとともに、両鋼製型枠4間に鉄筋6が配置
されている。鋼製型枠4は、縦バタ材7で支持されると
ともに、凹部3との間に設置された金属製または木製の
支持部材8a、8bにより支持され、且つ鋼製型枠4の
下方には、フーチング1a用の内外1対の型枠9(コン
クリート用型枠合板等)が配置されている。FIG. 8 shows an assembled state of a formwork for constructing the foundation. Deep foundation 1 in recess 3 formed by excavating the ground
A pair of inner and outer steel forms 4 are arranged and mounted on a reinforcing bar base 5, and a reinforcing bar 6 is arranged between the steel forms 4. The steel form 4 is supported by the vertical flap 7 and supported by metal or wooden supporting members 8 a and 8 b provided between the recess 3 and the steel form 4. , A pair of inner and outer formwork 9 (such as concrete formwork plywood) for the footing 1a is arranged.
【0004】内側の鋼製型枠4には、間仕切り基礎2に
対応する位置で鋼製型枠4と直交して屋内側へ折曲する
左右1対の折曲部4a(図8では片側のみ図示)が形成
され、これら折曲部4aの略下半部に隣接して、折曲部
4aと平行に上下方向へ延びる左右1対の鋼製のコーナ
型枠10が配置されて、金具11等により折曲部4aに
連結されている。A pair of left and right bent portions 4a (only one side in FIG. 8) which are bent to the indoor side at right angles to the steel formwork 4 at a position corresponding to the partition foundation 2 are provided on the inner steel formwork 4. A pair of left and right steel corner forms 10 extending in the vertical direction in parallel with the bent portion 4a is disposed adjacent to approximately the lower half of the bent portion 4a. It is connected to the bent part 4a by the like.
【0005】また、これらコーナ型枠11の内方端に隣
接させて、コンクリート用型枠合板(以下、コンパネと
いう)またはEPSブロック等からなる仕切り材12が
鋼製型枠4と平行に配置され、鋼製型枠4と仕切り材1
2との間に木製等の支持部材13が介設されている。[0005] Adjacent to the inner ends of the corner forms 11, a partition 12 made of concrete form plywood (hereinafter referred to as a control panel) or an EPS block or the like is arranged in parallel with the steel form 4. , Steel formwork 4 and partition material 1
A support member 13 such as a wooden member is provided between the support member 2 and the support member 2.
【0006】仕切り材12の内方で、凹部3が埋め戻し
土14により埋め戻され、更に、埋め戻し土14上に砕
石15(クラッシャラン)が敷設されている。そして、
砕石15上に、フーチング2a用の左右1対の樹脂製等
の型枠16が設置されるとともに、これら型枠16及び
前記コーナ型枠10上に間仕切り基礎2用の左右1対の
鋼製型枠17が設置され、鋼製型枠17の外方端は前記
折曲部4aに連結されている。[0006] Inside the partition member 12, the concave portion 3 is backfilled with backfill soil 14, and crushed stone 15 (crusher orchid) is laid on the backfill soil 14. And
On the crushed stone 15, a pair of left and right molds 16 made of resin or the like for the footing 2a are installed, and a pair of left and right steel molds for the partition foundation 2 are placed on these molds 16 and the corner formwork 10. A frame 17 is installed, and an outer end of the steel mold 17 is connected to the bent portion 4a.
【0007】[0007]
【発明が解決しようとする課題】ところが、上記のよう
な型枠を用いた基礎の施工方法では、型枠16及び鋼製
型枠17を設置するために、コーナ型枠10及び仕切り
材12の周辺で凹部3を埋め戻し土14で埋め戻すよう
にしているので、上記の埋め戻しを行った後、基礎の施
工前または施工後に、鋼製型枠4より内側の凹部3内で
作業をしている作業者が、間仕切り基礎2の一方側から
他方側へ移動する場合、凹部3を通って移動することが
できず、一旦、凹部3の上方の地盤18上に登った後、
更に、間仕切り基礎2用の鋼製型枠17または施工済の
間仕切り基礎2を乗り越えて移動する必要があり、移動
が面倒であった。However, in the method of constructing a foundation using a formwork as described above, in order to install the formwork 16 and the steel formwork 17, the corner formwork 10 and the partition member 12 need to be installed. Since the recess 3 is backfilled with the backfill soil 14 around the periphery, after performing the above backfill, work is performed in the recess 3 inside the steel formwork 4 before or after construction of the foundation. When the worker moves from one side to the other side of the partition foundation 2, the worker cannot move through the recess 3, and once climbs on the ground 18 above the recess 3,
Further, it is necessary to move over the steel formwork 17 for the partition foundation 2 or the completed partition foundation 2, and the movement is troublesome.
【0008】また、上記埋め戻し土14の土圧が、仕切
り材12から支持部材13を介して深基礎1用の鋼製型
枠4に加わるため、鋼製型枠4は上記の土圧に耐え得る
ように強固に固定する必要があり、鋼製型枠4の固定に
も手間が掛かる問題を有していた。Further, since the earth pressure of the backfill soil 14 is applied from the partition member 12 to the steel formwork 4 for the deep foundation 1 via the support member 13, the steel formwork 4 is subjected to the above-mentioned earth pressure. It has to be firmly fixed so that it can withstand, and there is a problem that fixing the steel formwork 4 is also troublesome.
【0009】更に、仕切り材12はコンパネまたはEP
Sブロック等を工事現場で適宜に調達し、必要により、
これを所定サイズに加工した上で使用しているので、コ
ーナ連結部2dの周囲の型枠を組み上げるのに手間と時
間を要する問題があった。Further, the partition member 12 is made of a control panel or an EP.
Procurement of S blocks etc. at the construction site as appropriate, and if necessary,
Since this is used after being processed to a predetermined size, there is a problem that it takes time and effort to assemble the form around the corner connecting portion 2d.
【0010】[0010]
【課題を解決するための手段】本発明は前記の課題を解
決して、間仕切り基礎(または間仕切り基礎用の型枠)
の一方側から他方側への移動を容易に行える基礎の施工
方法を提供することを目的としている。そのため、本発
明の請求項1の基礎の施工方法は、地中深くまで延びる
深基礎と、この深基礎より浅い位置まで延び且つ上記深
基礎に略直交するように接合される間仕切り基礎とを有
する基礎の施工方法において、地盤に凹部を形成して該
凹部内に上記深基礎用の型枠を設置する一方、上記凹部
より浅い地盤上に上記間仕切り基礎用の型枠を上記深基
礎用の型枠と略直交する方向に設置するとともにこの間
仕切り基礎用の型枠の上記深基礎用の型枠との接合部近
傍を底板を有する型枠構造として該接合部近傍を上記凹
部上に架設状態で設置した後、上記各型枠内にコンクリ
ートを打設するようにしたことを特徴とするものであ
る。According to the present invention, there is provided a partitioning foundation (or a formwork for a partitioning foundation) which solves the above-mentioned problems.
It is an object of the present invention to provide a method of constructing a foundation that can easily move from one side to the other side. Therefore, the method for constructing a foundation according to claim 1 of the present invention includes a deep foundation extending deep into the ground, and a partition foundation extending to a position shallower than the deep foundation and joined so as to be substantially orthogonal to the deep foundation. In the method of constructing a foundation, while forming a concave portion in the ground and installing the formwork for the deep foundation in the concave portion, the formwork for the partition foundation is formed on the ground shallower than the concave portion by the mold for the deep foundation. In the state of being installed in the direction substantially perpendicular to the frame and near the joint of the mold for the partition foundation with the mold for the deep foundation as a formwork structure having a bottom plate, the vicinity of the joint is laid on the recess. After the installation, concrete is poured into each of the molds.
【0011】請求項2の基礎の施工方法は、請求項1の
方法において、上記接合部近傍の下方における上記凹部
の底部により、略垂直方向へ延びる支持棒の下端部を支
持し、この支持棒の上端部を上記底板に連結するように
したことを特徴とするものである。According to a second aspect of the present invention, in the method of the first aspect, the lower end portion of the support rod extending in a substantially vertical direction is supported by the bottom of the recess below the vicinity of the joint. Is connected to the bottom plate.
【0012】[0012]
【発明の実施の形態】以下、本発明の実施の形態を図面
に基づいて説明する。まず、図1に本実施の形態におけ
る基礎構造を示すが、図7の従来例と共通する部分には
同一の参照番号を付して重複した説明を省略する。図7
の従来例では間仕切り基礎2のコーナ連結部2dに隣接
する位置までフーチング2cを設けていたのに対し、本
実施の形態では、コーナ連結部2dの近傍にはフーチン
グ2cを設けず、その代わりに、コーナ連結部2dの上
部とフーチング2c間のフーチング2cと同一高さ範囲
に、間仕切り基礎2本体と同一厚みを有する下方延長部
2eを設けている。なお、フーチング2cの代わりに下
方延長部2eを設けた部位の間仕切り基礎2は、強度が
若干低くなる傾向があるため、住宅本体の建築に際し
て、この下方延長部2eの上方の間仕切り基礎2上に
は、柱を設けないことが好ましい。Embodiments of the present invention will be described below with reference to the drawings. First, FIG. 1 shows a basic structure according to the present embodiment. Parts common to those in the conventional example shown in FIG. 7 are denoted by the same reference numerals, and redundant description is omitted. FIG.
In the conventional example, the footing 2c is provided up to a position adjacent to the corner connecting portion 2d of the partition foundation 2, whereas in the present embodiment, the footing 2c is not provided near the corner connecting portion 2d, and instead In the same height range as the footing 2c between the upper portion of the corner connecting portion 2d and the footing 2c, a lower extension 2e having the same thickness as the partition foundation 2 main body is provided. In addition, since the partition base 2 provided with the lower extension 2e instead of the footing 2c tends to have a slightly lower strength, when building the main body of the house, the partition base 2 is provided on the partition base 2 above the lower extension 2e. It is preferable that no pillar is provided.
【0013】次に、図2に本実施の形態の基礎を施工す
るための型枠の組立状態を示す。ここでも、図8の従来
の型枠と同一部分には同一参照番号を付して重複した説
明を省略する。本実施の形態では、間仕切り基礎2のフ
ーチング2c用の樹脂製等の型枠16が短めに形成さ
れ、型枠16の外方端は、凹部3と該凹部3より浅く略
平坦な地盤18との境界部付近に位置している。Next, FIG. 2 shows an assembled state of a formwork for constructing the foundation of the present embodiment. Here, the same portions as those of the conventional mold shown in FIG. 8 are denoted by the same reference numerals, and duplicate description will be omitted. In the present embodiment, a mold 16 made of resin or the like for the footing 2c of the partition foundation 2 is formed to be shorter, and the outer end of the mold 16 is formed with the concave portion 3 and the substantially flat ground 18 shallower than the concave portion 3. It is located near the boundary of.
【0014】また、本実施の形態では、上記コーナ連結
部2dを施工するために、従来のコーナ型枠10及び仕
切り材12に代えて、左右1対の鋼製のコーナ型枠20
(図2では左側のみ図示)が用いられるとともに、コー
ナ型枠20の上部と型枠16との間の型枠16と略同一
高さ範囲に、上記下方延長部2eを施工するための鋼製
の架設用型枠21が配設されている。上記コーナ型枠2
0と架設用型枠21とで間仕切り基礎通り抜け用型枠2
2を構成している。In the present embodiment, a pair of left and right steel corner forms 20 is used in place of the conventional corner form 10 and the partition member 12 in order to construct the corner connecting portion 2d.
(Only the left side is shown in FIG. 2), and a steel plate for mounting the lower extension 2 e in a height range substantially equal to the form 16 between the upper part of the corner form 20 and the form 16. Is provided. The corner formwork 2
0 and the erection formwork 21 form the partitioning base formwork 2
2.
【0015】図3に間仕切り基礎通り抜け用型枠22の
組立状態での斜視図を、また、図4に左側のコーナ型枠
20の斜視図を示す。このコーナ型枠20は垂直方向に
延びる本体20aと、本体20aの上端部を除く部位に
一体に設けられて本体20aの一端(住宅の内方端)か
ら本体20aと直交する方向へ延びる横断壁20bとを
備えている。FIG. 3 is a perspective view showing the assembled state of the partition base passing through formwork 22, and FIG. 4 is a perspective view of the left corner formwork 20. The corner form 20 includes a main body 20a extending in a vertical direction, and a transverse wall integrally provided at a portion other than an upper end of the main body 20a and extending from one end of the main body 20a (the inner end of the house) in a direction orthogonal to the main body 20a. 20b.
【0016】横断壁20bは、本体20aの略下半部に
位置する垂直部20cと、垂直部20cの上端から斜め
方向へ延びる傾斜部20dとからなり、垂直部20cの
先端には、本体20aと平行な方向へ折曲されたフラン
ジ20eが一体に形成されている。傾斜部20dより上
方の、本体20aの上端部に対応する部位は開放されて
いる。The cross wall 20b includes a vertical portion 20c located substantially in the lower half of the main body 20a, and an inclined portion 20d extending obliquely from the upper end of the vertical portion 20c. The flange 20e bent in a direction parallel to the direction is integrally formed. A portion above the inclined portion 20d and corresponding to the upper end of the main body 20a is open.
【0017】また、右側のコーナ型枠20は上記左側の
コーナ型枠20と左右対称に構成されており、図3に示
すように、左右1対のコーナ型枠20の本体20a同士
を上記コーナ連結部2dの厚みに対応した間隔を隔てて
互いに平行に配置するとともに、横断壁20bを対向す
るコーナ型枠20側に延びるように配置してフランジ2
0e同士を突き合わせ、両フランジ20eを金具11等
で連結している。The right corner form 20 is symmetrical to the left corner form 20. As shown in FIG. 3, the main bodies 20a of the pair of right and left corner forms 20 are connected to each other. The flanges 2 are arranged in parallel with each other at intervals corresponding to the thickness of the connecting portion 2d, and are arranged so that the transverse walls 20b extend toward the opposed corner form 20 side.
The two flanges 20e are connected by metal fittings 11 or the like.
【0018】上記架設用型枠21は、左右1対の側板2
3と底板24とを有する。図5に左側の側板23を示す
ように、この側板23は本体23aと、本体23aの一
端から外側方へ垂直に折れ曲がる折曲部23bとからな
る。折曲部23bの上下幅は本体23aの上下幅より大
きく、折曲部23bは本体23aより下方まで延びてい
る。右側の側板23は左側の側板23と左右対称に構成
されている。The erection formwork 21 includes a pair of left and right side plates 2.
3 and a bottom plate 24. As shown in the left side plate 23 in FIG. 5, the side plate 23 includes a main body 23a and a bent portion 23b which is vertically bent outward from one end of the main body 23a. The vertical width of the bent portion 23b is larger than the vertical width of the main body 23a, and the bent portion 23b extends below the main body 23a. The right side plate 23 is configured symmetrically with the left side plate 23.
【0019】底板24は図6に示すように、平板状の本
体24aの略中央にボルト挿通用の孔24bが設けられ
るとともに、本体24aの周囲に下向きの折曲部24c
乃至24e及び上向きの折曲部24fが形成されてい
る。また、凹部3との間で底板24を支持する支持棒2
5は、ボルト26と、筒状連結棒27と、下端支持棒2
8とからなり、筒状連結棒27の下端部には大径の嵌合
部27aが形成されるとともに、下端支持棒28の下端
部には基板28aが一体的に設けられている。As shown in FIG. 6, the bottom plate 24 is provided with a bolt insertion hole 24b at substantially the center of a flat plate-shaped main body 24a and a downward bent portion 24c around the main body 24a.
To 24e and an upward bent portion 24f are formed. Further, the support rod 2 supporting the bottom plate 24 with the recess 3
5 is a bolt 26, a cylindrical connecting rod 27, and a lower end supporting rod 2
8, a large-diameter fitting portion 27a is formed at the lower end of the cylindrical connecting rod 27, and a substrate 28a is integrally provided at the lower end of the lower-end support rod 28.
【0020】上記左右1対の側板23は、左右1対のコ
ーナ型枠20と本体20a、23a同士が連続して同一
面を成すように配置され、コーナ型枠20の上部に側板
23の他端(住宅の外方端)が金具11等で接続され
る。また、側板23の上記一端の折曲部23bは、架設
用型枠21より横幅の広いフーチング2c用の型枠16
の端部に接合される。The pair of left and right side plates 23 is disposed so that the pair of left and right corner forms 20 and the main bodies 20a and 23a are continuously formed on the same plane. The ends (outer ends of the house) are connected by metal fittings 11 or the like. Further, the bent portion 23b at one end of the side plate 23 is provided with a formwork 16 for the footing 2c having a width wider than the formwork formwork 21.
Is joined to the end.
【0021】底板24は両側板23の下端間で水平方向
に配置され、両側板23と底板24とで全体として上方
が開いた断面略コ字型の型枠を構成している。上記底板
24は、その下方の凹部3の底部から略垂直上方へ延び
る支持棒25により支持される。すなわち、ボルト26
の上端部を孔24bに挿通して、本体24aの上部及び
下部で各々ナット30を螺合することにより、ボルト2
6の上端部が底板24に固定される。The bottom plate 24 is horizontally disposed between the lower ends of the both side plates 23, and the both side plates 23 and the bottom plate 24 constitute a generally U-shaped cross-section form whose upper part is open as a whole. The bottom plate 24 is supported by a support rod 25 extending substantially vertically upward from the bottom of the recess 3 below the bottom plate 24. That is, the bolt 26
Is inserted into the hole 24b, and the nut 30 is screwed into each of the upper and lower parts of the main body 24a.
6 is fixed to the bottom plate 24.
【0022】また、ナット30の下方でボルト26に上
下位置調整用のナット31を螺合した上でボルト26の
下部を筒状連結棒27の上端部に嵌合すると、ナット3
1が筒状連結棒27の上端面に当接することにより、上
下位置が定まり、ボルト26が筒状連結棒27により支
持される。そして、上記嵌合部27aを下端支持棒28
の上端部に嵌合し、基板28aを含む下端支持棒28の
下部を凹部3の底部で地中に埋設することにより、底板
24を支持棒25を介して凹部3の底部で支持させてい
る。なお、下端支持棒28の下部を凹部3の底部表面に
固定するようにしてもよい。When a nut 31 for adjusting the vertical position is screwed to the bolt 26 below the nut 30 and the lower part of the bolt 26 is fitted to the upper end of the cylindrical connecting rod 27, the nut 3
1 is in contact with the upper end surface of the cylindrical connecting rod 27, the vertical position is determined, and the bolt 26 is supported by the cylindrical connecting rod 27. Then, the fitting portion 27a is connected to the lower end support rod 28.
The bottom plate 24 is supported by the bottom of the concave portion 3 via the support bar 25 by burying the lower portion of the lower end support bar 28 including the substrate 28 a in the ground at the bottom of the concave portion 3. . Note that the lower portion of the lower end support bar 28 may be fixed to the bottom surface of the recess 3.
【0023】上記の構成を有する型枠を用いて基礎の施
工を行う場合、まず、地盤に深い凹部3を形成して、こ
の凹部3内に深基礎1用の鋼製型枠4及びフーチング1
a用の型枠9を設置する。また、凹部3より屋内側に位
置し、凹部3より浅い地盤18上に砕石15(クラッシ
ャラン)を敷設し、この砕石15上に間仕切り基礎2の
フーチング2c用の型枠16を設置する。When the foundation is to be constructed using the formwork having the above structure, first, a deep recess 3 is formed in the ground, and a steel form 4 and a footing 1 for the deep foundation 1 are formed in the recess 3.
The mold 9 for a is installed. A crushed stone 15 (crusher orchid) is laid on the ground 18 located on the indoor side from the recess 3 and shallower than the recess 3, and a formwork 16 for the footing 2 c of the partition foundation 2 is installed on the crushed stone 15.
【0024】また、鋼製型枠4の折曲部4aに左右1対
のコーナ型枠20を接続するとともに、これらコーナ型
枠20に左右1対の側板23を接続し、側板23の折曲
部23bを型枠16の端部に接合する。そして、上記の
ように、両側板23の下端間に底板24を水平に配置し
て、底板24の下方の凹部3から略垂直上方に延びる支
持棒25により上記底板24を支持する。A pair of left and right corner forms 20 is connected to the bent portion 4a of the steel form 4 and a pair of left and right side plates 23 are connected to the corner forms 20 to bend the side plates 23. The part 23b is joined to the end of the formwork 16. Then, as described above, the bottom plate 24 is horizontally disposed between the lower ends of the both side plates 23, and the bottom plate 24 is supported by the support rod 25 extending substantially vertically upward from the recess 3 below the bottom plate 24.
【0025】また、型枠16に隣接する凹部3の上端部
付近に、型枠16と架設用型枠21の境界位置に合わせ
て、型枠16の下端から凹部3に向けて略垂直方向に延
びる仕切り材32(コンパネまたはEPSブロック等)
を配置する。仕切り材32の上端部は、側板23の折曲
部23b及び底板24の折曲部24cに当接させる。Further, in the vicinity of the upper end of the concave portion 3 adjacent to the mold 16, substantially vertically from the lower end of the mold 16 toward the concave portion 3 in accordance with the boundary position between the mold 16 and the erection mold 21. Extending partition material 32 (control panel or EPS block, etc.)
Place. The upper end of the partition member 32 is brought into contact with the bent portion 23b of the side plate 23 and the bent portion 24c of the bottom plate 24.
【0026】そして、コーナ型枠20、架設用型枠21
及び型枠16上に、間仕切り基礎2用の鋼製型枠17を
設置し、側板23の上端と鋼製型枠17の下端とをクラ
ンプ部材33で固定する。このようにして本実施の形態
では、間仕切り基礎2用の鋼製型枠17における深基礎
1用の鋼製型枠4との接合部近傍17a及びその下方に
位置する架設用型枠21を凹部3上に架設した状態とす
る。Then, the corner form 20 and the erection form 21
The steel form 17 for the partition foundation 2 is installed on the form 16, and the upper end of the side plate 23 and the lower end of the steel form 17 are fixed by the clamp member 33. In this manner, in the present embodiment, in the steel mold 17 for the partition foundation 2, the vicinity of the joint 17 a with the steel mold 4 for the deep foundation 1 and the erection mold 21 located thereunder are recessed. 3 is installed.
【0027】その後、仕切り材32と砕石15との間の
隙間34に生コンクリートを注入するとともに各型枠内
に生コンクリートを打設し、所定期間養生した後、底板
24を除く各型枠を取り外すことにより、基礎の施工を
終了する。なお、上記フーチング1a、2cを含む深基
礎1及び間仕切り基礎2の下部を埋め戻す際に、底板2
4及び支持棒25は地中に埋め殺しにして使用する。Then, fresh concrete is poured into the gap 34 between the partition member 32 and the crushed stone 15 and the fresh concrete is poured into each formwork, and after curing for a predetermined period, each formwork except the bottom plate 24 is removed. By removing, the construction of the foundation is completed. When backfilling the lower part of the deep foundation 1 and the partition foundation 2 including the footings 1a and 2c, the bottom plate 2
4 and the support rod 25 are buried in the ground and used.
【0028】上記の施工方法によれば、間仕切り基礎2
の鋼製型枠17の深基礎1用の鋼製型枠4との接合部近
傍17a及びその下方の架設用型枠21を凹部3上に架
設した状態で各型枠内へのコンクリートの打設を行うよ
うにし、基礎の施工の段階では凹部3の埋め戻しを行わ
ないようにしたので、基礎の施工前または基礎の施工後
の埋め戻し前に、鋼製型枠4より屋内側の凹部3内で作
業をしている作業者は、架設用型枠21の下方または施
工済の間仕切り基礎2の下方延長部2eの下方を容易に
通り抜けることができ、且つ架設用型枠21または下方
延長部2eの下方を通して各種部材の運搬を行うことが
できるので、作業性は良好である。According to the above construction method, the partition foundation 2
Concrete is cast into each of the steel formwork 17 in a state in which the vicinity of the joint 17a of the steel formwork 17 with the steel formwork 4 for the deep foundation 1 and the erection formwork 21 thereunder are laid on the recess 3. Since the recesses 3 are not backfilled during the foundation construction stage, the recesses on the indoor side of the steel formwork 4 before the foundation construction or before the backfilling after the foundation construction. 3 can easily pass under the erection formwork 21 or below the lower extension 2e of the installed partition base 2, and can also pass through the erection formwork 21 or the lower extension. Since various members can be transported below the portion 2e, workability is good.
【0029】また、基礎の施工時には凹部3の埋め戻し
を行わないので、従来のように埋め戻し土の土圧が深基
礎1用の鋼製型枠4に作用することがなく、鋼製型枠4
の固定作業も比較的容易に行える。更に、コーナ連結部
2dを施工するためのコーナ型枠20に横断壁20bを
一体に設けて、左右1対のコーナ型枠20のみでコーナ
連結部2dの施工を行えるようにしたので、従来のよう
に、コンパネ等からなる仕切り材12(図8参照)を使
用する必要がなくなり、型枠の組立作業が容易になる。Since the recess 3 is not backfilled when the foundation is being constructed, the earth pressure of the backfill soil does not act on the steel formwork 4 for the deep foundation 1 as in the prior art. Frame 4
Can be fixed relatively easily. Further, since the transverse wall 20b is provided integrally with the corner formwork 20 for constructing the corner connecting portion 2d, the corner connecting portion 2d can be constructed only with the pair of left and right corner formwork 20. As described above, there is no need to use the partition member 12 (see FIG. 8) made of a control panel or the like, and the assembling work of the mold is facilitated.
【0030】なお、両側板23を省略して、接合部近傍
17aにおける左右1対の鋼製型枠17の下端位置に底
板24を配置してコンクリートの打設を行うことも可能
であるが、本実施の形態のように、鋼製型枠17の下方
に、左右1対の側板23を介して底板24を配置する
と、完成した間仕切り基礎2において、コーナ連結部2
dの上部とフーチング2cとを下方延長部2eにより連
結することができ、強度上好ましいものである。また、
接合部近傍17aにおいては、フーチング2cを設け
ず、間仕切り基礎2本体と同一厚みの下方延長部2eを
設けるようにしたので、基礎の施工時に底板24より支
持するコンクリートの量が過度に多くなることもない
が、下方延長部2eの厚みを間仕切り基礎2本体の厚み
と同一とすることは必須ではない。It is also possible to omit the side plates 23 and to cast concrete by disposing the bottom plate 24 at the lower end position of the pair of left and right steel molds 17 near the joint 17a. As in the present embodiment, when the bottom plate 24 is arranged below the steel formwork 17 via a pair of left and right side plates 23, the corner connecting portion 2 in the completed partition foundation 2 is formed.
The upper part of d and the footing 2c can be connected by the lower extension 2e, which is preferable in terms of strength. Also,
In the vicinity of the joint 17a, the footing 2c is not provided, and the lower extension 2e having the same thickness as the main body of the partition foundation 2 is provided. Therefore, the amount of concrete supported by the bottom plate 24 during construction of the foundation becomes excessively large. However, it is not essential that the thickness of the lower extension 2e be equal to the thickness of the partition base 2 main body.
【0031】また、上記実施の形態では、底板24及び
支持棒25を埋め殺すようにしたが、支持棒25の上端
部、ここではボルト26の上端部が底板24の上部に突
出しない構造のものであれば、基礎の施工後に充分な養
生期間を置き、底板24及び支持棒25を取り外して再
使用するようにしてもよい。In the above embodiment, the bottom plate 24 and the support rod 25 are buried, but the upper end of the support rod 25, here, the upper end of the bolt 26 does not protrude above the bottom plate 24. In this case, a sufficient curing period may be provided after the foundation is installed, and the bottom plate 24 and the support rod 25 may be removed and reused.
【0032】更に、1対のコーナ型枠20としては、左
右対称のものを用いたが、例えば、一方のコーナ型枠2
0のみに横幅の広い横断壁を一体に設けてもよく、底板
24を埋め殺しにしない場合は、いずれか一方の側板2
3と底板24とを一体構造としてもよく、或いは、コー
ナ型枠20と側板23とを一体構造とする等の変更は自
由に行える。また、上記実施の形態では各型枠を鋼製と
し、これにより、施工後の基礎の表面形状を安定化させ
ることができる利点があるが、各型枠を鋼製とすること
は必須ではない。Further, although a pair of corner forms 20 is symmetrical, for example, one corner form 2 may be used.
0 may be provided integrally with a wide transverse wall, and when the bottom plate 24 is not to be buried, one of the side plates 2 may be provided.
3 and the bottom plate 24 may be formed as an integrated structure, or the corner mold 20 and the side plate 23 may be formed as an integrated structure. Further, in the above embodiment, each mold is made of steel, which has an advantage that the surface shape of the foundation after construction can be stabilized, but it is not essential that each mold is made of steel. .
【0033】[0033]
【発明の効果】本発明の請求項1の基礎の施工方法は、
地中深くまで延びる深基礎と、この深基礎より浅い位置
まで延び且つ上記深基礎に略直交するように接合される
間仕切り基礎とを有する基礎の施工方法において、地盤
に凹部を形成して該凹部内に上記深基礎用の型枠を設置
する一方、上記凹部より浅い地盤上に上記間仕切り基礎
用の型枠を上記深基礎用の型枠と略直交する方向に設置
するとともにこの間仕切り基礎用の型枠の上記深基礎用
の型枠との接合部近傍を底板を有する型枠構造として該
接合部近傍を上記凹部上に架設状態で設置した後、上記
各型枠内にコンクリートを打設するようにしたので、上
記基礎の施工前または施工後に、上記深基礎用の型枠よ
り内側の凹部内で、間仕切り基礎の一方側から他方側へ
移動する場合、上記接合部近傍の下方の空間を通り抜け
て移動することができ、作業者の移動が容易になる利点
がある。The method for constructing a foundation according to claim 1 of the present invention is as follows.
In a method of constructing a foundation having a deep foundation extending deep into the ground and a partition foundation extending to a position shallower than the deep foundation and joined so as to be substantially perpendicular to the deep foundation, a concave portion is formed in the ground to form the concave portion. While installing the formwork for the deep foundation inside, while installing the formwork for the partition foundation on the ground shallower than the recess in a direction substantially orthogonal to the formwork for the deep foundation, After setting the vicinity of the joint of the formwork with the formwork for the deep foundation as a formwork structure having a bottom plate, the vicinity of the joint is installed on the concave portion in a erected state, and then concrete is poured into each of the formworks. As described above, before or after construction of the foundation, when moving from one side of the partition foundation to the other side in the recess inside the formwork for the deep foundation, the lower space near the joint is removed. Moving through Come, there is an advantage that facilitates the movement of workers.
【0034】また、上記凹部上に架設状態で設けられる
上記接合部近傍は、その底部が上記底板で覆われている
ので、基礎の施工に際して上記接合部近傍に流し込まれ
るコンクリートが上記底板で受けられ、基礎の施工は円
滑に行われる。Further, since the bottom portion of the vicinity of the joint provided on the recess is covered with the bottom plate, concrete poured into the vicinity of the joint at the time of foundation construction is received by the bottom plate. The construction of the foundation is performed smoothly.
【0035】更に、上記接合部近傍を上記凹部上に架設
状態で設けており、各型枠内にコンクリートを打設して
基礎を施工する段階では、上記凹部の埋め戻しは行わな
いので、従来のように、深基礎用の型枠に埋め戻し土の
土圧が作用することがなく、従って、本発明では深基礎
用の型枠の設置も容易に行える。Further, the vicinity of the joint is provided in a state of being erected on the recess, and at the stage of placing concrete in each formwork and constructing the foundation, the recess is not backfilled. As described above, the earth pressure of the backfill soil does not act on the deep foundation formwork, and therefore, the deep foundation formwork can be easily installed in the present invention.
【0036】請求項2の基礎の施工方法は、請求項1の
方法において、上記接合部近傍の下方における上記凹部
の底部により、略垂直方向へ延びる支持棒の下端部を支
持し、この支持棒の上端部を上記底板に連結するように
したものであるから、上記接合部近傍にコンクリートが
流し込まれた後、コンクリートが凝固するまでの間、上
記底板が上記支持棒を介して地盤により安定的に支持さ
れ、基礎の施工の信頼性が向上する利点がある。According to a second aspect of the present invention, in the method of the first aspect, the lower end of the support rod extending in a substantially vertical direction is supported by the bottom of the concave portion below the vicinity of the joint. Since the upper end of the bottom plate is connected to the bottom plate, after the concrete is poured in the vicinity of the joint, the bottom plate is more stable to the ground via the support rod until the concrete solidifies. And there is an advantage that the reliability of foundation construction is improved.
【図1】本発明の実施の形態における基礎構造を示す斜
視図。FIG. 1 is a perspective view showing a basic structure according to an embodiment of the present invention.
【図2】上記基礎を施工するための型枠構造を示す概略
側面図。FIG. 2 is a schematic side view showing a formwork structure for installing the foundation.
【図3】上記型枠中の間仕切り基礎通り抜け用型枠の組
立状態を示す斜視図。FIG. 3 is a perspective view showing an assembled state of a formwork for passing through a partition foundation in the formwork.
【図4】上記間仕切り基礎通り抜け用型枠におけるコー
ナ型枠を示す斜視図。FIG. 4 is a perspective view showing a corner formwork in the formwork for passing through the partition foundation.
【図5】上記間仕切り基礎通り抜け用型枠における側板
を示す斜視図。FIG. 5 is a perspective view showing a side plate of the partition foundation passing through formwork.
【図6】上記間仕切り基礎通り抜け用型枠における底板
及び支持棒を示す分解斜視図。FIG. 6 is an exploded perspective view showing a bottom plate and a support rod in the partition foundation passing through formwork.
【図7】従来の基礎構造を示す斜視図。FIG. 7 is a perspective view showing a conventional basic structure.
【図8】従来の型枠構造を示す概略側面図。FIG. 8 is a schematic side view showing a conventional mold structure.
1 深基礎 2 間仕切り基礎 3 凹部 4 鋼製型枠(深基礎用の型枠) 17 鋼製型枠(間仕切り基礎用の型枠) 17a 接合部近傍 24 底板 25 支持棒 DESCRIPTION OF SYMBOLS 1 Deep foundation 2 Partition foundation 3 Concave part 4 Steel form (form for deep foundation) 17 Steel form (form for partition foundation) 17a Near joint area 24 Bottom plate 25 Support rod
Claims (2)
礎より浅い位置まで延び且つ上記深基礎に略直交するよ
うに接合される間仕切り基礎とを有する基礎の施工方法
において、 地盤に凹部を形成して該凹部内に上記深基礎用の型枠を
設置する一方、上記凹部より浅い地盤上に上記間仕切り
基礎用の型枠を上記深基礎用の型枠と略直交する方向に
設置するとともにこの間仕切り基礎用の型枠の上記深基
礎用の型枠との接合部近傍を底板を有する型枠構造とし
て該接合部近傍を上記凹部上に架設状態で設置した後、
上記各型枠内にコンクリートを打設するようにしたこと
を特徴とする基礎の施工方法。1. A method of constructing a foundation having a deep foundation extending deep into the ground and a partition foundation extending to a position shallower than the deep foundation and joined so as to be substantially perpendicular to the deep foundation. While forming and installing the mold for the deep foundation in the recess, the mold for the partition foundation is installed on the ground shallower than the recess in a direction substantially orthogonal to the mold for the deep foundation. After setting the vicinity of the junction with the form for the deep foundation of the form for the partition foundation as a form structure having a bottom plate, the vicinity of the junction is installed in a state of being erected on the recess,
A method for constructing a foundation, wherein concrete is poured into each of the formwork.
の底部により、略垂直方向へ延びる支持棒の下端部を支
持し、この支持棒の上端部を上記底板に連結するように
したことを特徴とする請求項1記載の基礎の施工方法。2. A bottom portion of the concave portion below the vicinity of the joint portion supports a lower end portion of a support rod extending substantially vertically, and connects an upper end portion of the support bar to the bottom plate. The method for constructing a foundation according to claim 1, wherein
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15369397A JP3656873B2 (en) | 1997-06-11 | 1997-06-11 | Foundation construction method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15369397A JP3656873B2 (en) | 1997-06-11 | 1997-06-11 | Foundation construction method |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH111930A true JPH111930A (en) | 1999-01-06 |
JP3656873B2 JP3656873B2 (en) | 2005-06-08 |
Family
ID=15568079
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JP15369397A Expired - Fee Related JP3656873B2 (en) | 1997-06-11 | 1997-06-11 | Foundation construction method |
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Country | Link |
---|---|
JP (1) | JP3656873B2 (en) |
-
1997
- 1997-06-11 JP JP15369397A patent/JP3656873B2/en not_active Expired - Fee Related
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---|---|
JP3656873B2 (en) | 2005-06-08 |
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