JPS63181831A - Underground construction - Google Patents
Underground constructionInfo
- Publication number
- JPS63181831A JPS63181831A JP62011133A JP1113387A JPS63181831A JP S63181831 A JPS63181831 A JP S63181831A JP 62011133 A JP62011133 A JP 62011133A JP 1113387 A JP1113387 A JP 1113387A JP S63181831 A JPS63181831 A JP S63181831A
- Authority
- JP
- Japan
- Prior art keywords
- retaining wall
- floor slab
- floor
- supported
- underground
- 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.)
- Pending
Links
- 238000010276 construction Methods 0.000 title description 9
- 230000002787 reinforcement Effects 0.000 claims description 6
- 239000004567 concrete Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 230000003014 reinforcing effect Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000009415 formwork Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 239000011150 reinforced concrete Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Landscapes
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、山止め壁を本設の構造体として、この山止め
壁に地下階の床スラブの端部を支持させることで、山止
め壁に、それが本来備えている仮設的な山止め機能に加
えて本設的な機能を持たせ、従来多用されていた支持杭
の使用を少なくしてコストダウンを計った地下構築物に
関する。[Detailed Description of the Invention] [Industrial Application Field] The present invention provides a retaining wall as a permanent structure, and by supporting the end of the floor slab of a basement floor on the retaining wall, the retaining wall is installed as a permanent structure. This invention relates to an underground structure in which the wall has a permanent function in addition to the temporary pile-stopping function that the wall originally has, and the cost is reduced by reducing the use of supporting piles, which have been used frequently in the past.
上述の地下構築物としては、従来、山止め壁における各
地下階に相当する箇所それぞれに鉄板や鉄筋からなるシ
アーコネクターを設け、このシアーコネクターを、床ス
ラブの端部、場合によっては地下構築物の外周部の梁や
外壁のコンクリート中に埋設させることで、床スラブの
端部をこのシアーコネクターを介して山止め壁に支持さ
せるようにしたものが知られている（文献を示すことが
できない）。Conventionally, for the above-mentioned underground structures, shear connectors made of iron plates or reinforcing bars were installed at each location of the retaining wall corresponding to each basement floor, and these shear connectors were connected to the ends of the floor slabs, or in some cases to the outer periphery of the underground structure. It is known that the ends of the floor slab are supported by the retaining walls through the shear connectors by embedding them in the concrete of the shear beams and exterior walls (I cannot provide any references).
しかし、上述した従来による場合には、床スラブの山止
め壁への支持を、山止め壁における各地下階に相当する
箇所に設けたシアーコネクターにより行うもので、この
シアーコネクターは通常、山止め壁内に埋設されるブラ
ケット等に現場で溶接されるものであり、地下の階数が
増えるほどシアーコネクターが数多く必要になるので、
その施工に手間が掛かるとともにコストアップを招来す
るものであった。However, in the conventional case described above, the support of the floor slab to the retaining wall is achieved by sheer connectors installed at locations corresponding to each basement floor on the retaining wall; They are welded on-site to brackets etc. buried in the wall, and as the number of floors underground increases, more shear connectors are required.
The construction was time consuming and increased costs.
また、床スラブおよび地下構築物の外壁や外周部の梁等
の施工は、山止め壁にシアーコネクターを取り付けた後
に行われるものであるから、数多くのシアーコネクター
があるために、それらの鉄筋の施工が困難になりがちで
、手間を要するものであった。In addition, since the construction of floor slabs and the outer walls and peripheral beams of underground structures is carried out after installing shear connectors on the retaining walls, there are many shear connectors, so it is difficult to install those reinforcing bars. This tends to be difficult and requires time and effort.
本発明の目的は、上記実情に鑑み、床スラブ端部を山止
め壁に支持するための施工を、簡単でコスト的にも有利
に行える地下構築物を提供することにある。SUMMARY OF THE INVENTION In view of the above circumstances, an object of the present invention is to provide an underground structure in which construction for supporting the end of a floor slab to a retaining wall can be performed easily and cost-effectively.
〔問題点を解決するための手段〕
本発明による地下構築物の特徴構成は、床スラブのうち
、上方の床スラブの端部を山止め壁に支持さｕ゛るとと
もに、下方の床スラブの端部を前記」二方の床スラブに
吊下げ具を介して吊り下げ支持させたこと（、こある。[Means for Solving the Problems] The characteristic configuration of the underground structure according to the present invention is that the ends of the upper floor slabs are supported by retaining walls, and the ends of the lower floor slabs are supported by retaining walls. The above-mentioned section is suspended and supported from the two floor slabs via hanging tools.
つまり、上方の床スラブの端部を山止め壁に支持させる
とともに上方の床スラブに吊下げ具を介して下方の床ス
ラブの端部を吊り下げさせることにより、床スラブの端
部を山止め壁に支持させるため、従来各地下階毎に必要
としていたシアーコネクターを極力少なくできる。In other words, by supporting the end of the upper floor slab on the retaining wall and suspending the end of the lower floor slab from the upper floor slab via a hanging device, the end of the floor slab is secured against the retaining wall. Since it is supported by the wall, the number of shear connectors that were conventionally required for each basement floor can be minimized.
特に、」一方の床スラブの端部を山止め壁の頂部に載置
した梁に吊下げ具を介して吊り下げ支持させる場合には
、シアーコネクターが全く不要で、しかも、そのために
、梁を山止め壁の頂部どいった、開放され、かつ、作業
性の良い箇所に載置するだけでよいから、施工の繁雑化
を来す虞が少ない。In particular, when suspending and supporting the end of one floor slab from a beam placed on the top of a retaining wall via a hanging device, there is no need for a shear connector at all; Since it is only necessary to place it in an open and easy-to-work location, such as the top of a retaining wall, there is little risk of complicating the construction process.
その結果、従来必要としたシアーコネクターの山止め壁
に対する溶接等による取付作業を少なく、あるいはなく
すことができるとともに、地下構築物の床スラブや外壁
、外周部の梁の鉄筋の施工を多数のシアーコネクターに
邪魔されることなく能率よく行えるから、地下階の床ス
ラブを本設の構造体としての山止め壁に支持させるにあ
たって、その施工を簡単に、しかも、コスト的に有利に
行えるようになった。As a result, it is possible to reduce or eliminate the installation work such as welding the shear connector to the retaining wall that was previously required, and it is also possible to install a large number of shear connectors on the floor slabs of underground structures, external walls, and reinforcing bars on the outer peripheral beams. Because this work can be carried out efficiently without being disturbed by construction, it has become easier and more cost-effective to support the basement floor slab on the retaining wall as a permanent structure. .
特に、上方の床スラブを山止め壁に載置した梁から吊り
下げ支持する場合には、シアーコネクターを全くなくす
ことができて、より一層効果的である。In particular, when the upper floor slab is suspended and supported from a beam placed on a retaining wall, the shear connector can be completely eliminated, which is even more effective.
以下、図面に基づいて、本発明の詳細な説明する。 Hereinafter, the present invention will be described in detail based on the drawings.
第４図に示すように、地下構築物の一例である建物の地
下階部分（Ｂ）を、その周囲に設けた山止め壁（１）に
よって支持しである。As shown in FIG. 4, a basement floor portion (B) of a building, which is an example of an underground structure, is supported by a retaining wall (1) provided around the basement floor portion (B).
即ち、この地下階部分（Ｂ）の外周部の地表面（ＧＬ）
近傍に位置する１陰型（２）を、側方に張り出すように
形成し、この張出部分（２ａ）を、前記山止め壁（１）
の頂部に載置する状態に設けである。そして、この１陰
型（２）、吊下げ具となる地下階部分（Ｂ）の外壁の縦
筋（３）を介して、地下の下方の各階の床スラブ（＋７
Ｂ） （（Ｆｌｌｌ）、 （Ｆ８Ｚ）−）を吊り下げ支
持させてある。That is, the ground surface (GL) of the outer periphery of this underground floor part (B)
A 1-shade mold (2) located nearby is formed so as to project sideways, and this projecting portion (2a) is connected to the retaining wall (1).
It is designed to be placed on top of the Then, this 1 negative mold (2) is connected to the floor slab (+7
B) ((Fllll), (F8Z)-) is suspended and supported.
従って、地下階部分（Ｂ）の鉛直荷重、即ち、構造体の
自重や積載荷重は、縦筋（３）を介して１陰型（２）に
伝達され、この１陰型（２）の張出部分（２ａ）が山止
め壁（１）の頂部に載置されていることで山止め壁（１
）に伝達され、山止め壁（１）が本設の構造体となって
地下階部分（Ｂ）を支持することとなる。Therefore, the vertical load of the basement floor part (B), that is, the structure's own weight and live load, is transmitted to the first negative mold (2) via the vertical reinforcement (3), and the tension of this single negative mold (2) is Since the protruding part (2a) is placed on the top of the retaining wall (1), the retaining wall (1)
), and the retaining wall (1) becomes a permanent structure to support the basement floor part (B).
なお、地下階部分（Ｂ）の外壁の縦筋（３）によって床
スラブ（ＦＢ） （（Ｆｌｌｌ）、 （ｐ＊ｚ）・・）
を吊り下げ支持するにあたって、その全部を用いなくて
も、一部分の縦筋（３）のみを用いるようにしてもよい
。また、縦筋（３）に替えて、或いは、縦筋（３）に併
せて、別の、例えば、鋼材等からなる吊下げ具を用いて
もよい。In addition, the floor slab (FB) ((Fllll), (p*z)...) is created by vertical stripes (3) on the outer wall of the basement floor part (B).
In suspending and supporting the vertical bars (3), only a part of the vertical bars (3) may be used instead of using all of them. Further, in place of or in conjunction with the vertical reinforcement (3), another hanging tool made of steel or the like may be used.
次に、この地下階部分（Ｂ）の構築の手順を説明する。Next, the procedure for constructing this basement floor portion (B) will be explained.
く１〉まず、第１図に示すように、構築予定箇所の周囲
に山止め壁（１）を造成する。この山止め壁（１）とし
ては、ＲＣによる連続壁弐によるものであっても、各種
の柱列式によるものであってもよく、その形式は不問で
ある。1> First, as shown in Figure 1, a retaining wall (1) is constructed around the planned construction site. This retaining wall (1) may be a continuous wall made of RC, or may be made of various types of columns, and its format is not limited.
く２〉次に、第２図に示すように、山止め壁（１）に囲
まれた部分を１階分掘削排土し、この部分に、１階スラ
ブ（Ｆｌ）及び１階乗（２）等の型枠を設置し、配筋し
た後、コンクリート打設する。このとき、１階乗（２）
として、山止め壁（１）の頂部に載置する張出部分（２
ａ）を一体的にコンクリート打設できるように型枠を組
む。2> Next, as shown in Figure 2, the area surrounded by the retaining wall (1) is excavated and removed for one floor, and this area is filled with a first floor slab (Fl) and a first floor slab (Fl). ) etc., and after arranging reinforcement, concrete is poured. At this time, the first factorial (2)
, the overhanging part (2) placed on the top of the retaining wall (1)
Assemble a formwork so that a) can be poured in one piece with concrete.
〈３〉コンクリート打設後、所定の養生期間を経過して
から、第３図に示すように、上述と同様に地盤をさらに
１階分掘り下げて排土し、次の型枠を設置する。このと
き、上階の外壁の縦筋（３）を下方に伸ばしておき、そ
れに、新たな縦筋（３）を、ガス圧接、スリーブ圧着等
の手段で接続することで、縦筋（３）を下方に延長して
行く。<3> After a predetermined curing period has elapsed after pouring the concrete, as shown in Figure 3, the ground is further dug for one floor and the soil is removed in the same manner as described above, and the next formwork is installed. At this time, the vertical reinforcement (3) on the outer wall of the upper floor is stretched downward, and a new vertical reinforcement (3) is connected to it by means such as gas pressure welding or sleeve crimping. Extend downward.
く４〉その後、上述のく２〉とく３〉の工程を繰り返し
、外壁のコンクリートも順次後打ちして、第４図に示す
ように、地下階部分（Ｂ）が完成する。4> Thereafter, the above-mentioned steps 2 and 3 are repeated, and the concrete for the outer walls is also post-cast in sequence, completing the basement floor part (B) as shown in Figure 4.
第５図に、本発明による地下構築物の別の実施例を示す
。FIG. 5 shows another embodiment of the underground construction according to the invention.
この実施例では、上方の床スラブである地下１階の床ス
ラブ（Ｆ、）に連設された地下１階梁（Ｇｌｌ）の端部
にのみ、山止め壁（１）に付設したシアーコネクター（
４）を埋設させることでこの床スラブ（ＦＢｎ）の端部
を山止め壁（１）に支持させ、かつ、この地下１階の床
スラブ（ＦＢＩ）の端部に吊下げ具である外壁の縦筋（
３）を介して下方の床スラブである地下２階以下の床ス
ラブ（’Ｆ、、）。In this example, a shear connector attached to the retaining wall (1) is attached only to the end of the first basement floor beam (Gll) connected to the upper floor slab (F,) of the first basement floor. (
By burying 4), the end of this floor slab (FBn) is supported by the retaining wall (1), and the hanging fixture of the outer wall is attached to the end of this basement floor slab (FBI). Vertical stripes (
3) The floor slab below the second basement floor ('F,,) which is the lower floor slab through.
（ＦＢＩ３） 、（Ｆｌ４）を吊り下げ支持させてある
。そして、この実施例においては、地下１階部分は上方
に開放されたオーブンスペースとなっている。(FBI3) and (Fl4) are suspended and supported. In this embodiment, the first basement floor is an oven space that is open upward.
なお、地下階部分（Ｂ）の梁間寸法及び桁行寸法がさほ
ど大きくない場合には、地下の最下部において杭等を用
いて支持しなくてもよいが、それら両寸法が大きくなれ
ば、それに応じて、中央部分に適宜杭等を施工するよう
にしてもよい。In addition, if the dimensions between the beams and the beam dimensions of the basement floor part (B) are not very large, it is not necessary to use piles, etc. to support it at the lowest part of the basement, but if both dimensions become large, it may be necessary to Then, a pile or the like may be constructed as appropriate in the central part.
先の実施例では鉄筋コンクリート造の建築物の地下階部
分（Ｂ）を例にとって説明したが、本発明は、その他、
鉄骨鉄筋コンクリート造の建築物の地下階部分、或いは
、それらいずれかの構造による地下タンクや地下倉庫等
にも適用することができ、用途に拘らず、それら地下に
設けられる構築物を地下構造物（８）と総称する。In the previous embodiment, the basement floor part (B) of a reinforced concrete building was explained as an example, but the present invention also has other features.
It can be applied to underground floors of steel-framed reinforced concrete buildings, underground tanks, underground warehouses, etc. made of any of these structures. ).
尚、特許請求の範囲の項に図面との対照を便利にする為
に符号を記すが、該記入により本発明は添付図面の構造
に限定されるものではない。Incidentally, although reference numerals are written in the claims section for convenient comparison with the drawings, the present invention is not limited to the structure shown in the accompanying drawings.
図面は本発明に係る地下構築物の実施例を示し、第１図
ないし第３図は地下構築物の施工工程を示す断面図、第
４図は完成時の地下構築物の断面図、第５図は別の実施
例を示す第４図に相当する断面図である。
（１）・・・・・・山止め壁、（２）・・・・・・梁、
（３）・・・・・・吊下げ具、（Ｆｌ３）・・・・・・
床スラブ。The drawings show examples of the underground structure according to the present invention, FIGS. 1 to 3 are cross-sectional views showing the construction process of the underground structure, FIG. 4 is a cross-sectional view of the underground structure when completed, and FIG. 5 is a separate diagram. FIG. 4 is a sectional view corresponding to FIG. 4 showing an example of the present invention. (1)......Mountain wall, (2)...Beam,
(3)...Hanging tool, (Fl3)...
floor slab.
Claims (1)
壁（１）に地下階の床スラブ（ＦＢ）の端部を支持させ
てある地下構築物において、前記床スラブ（ＦＢ）のう
ち、上方の床スラブ（Ｆ＿Ｂ＿ｎ）の端部を前記山止め
壁（１）に支持させるとともに、下方の床スラブ（Ｆ＿
Ｂ＿ｎ＿＋＿１）の端部を前記上方の床スラブ（Ｆ＿Ｂ
＿ｎ）に吊下げ具（３）を介して吊り下げ支持させてあ
る地下構築物。 ２、前記上方の床スラブ（Ｆ＿Ｂ＿ｎ）の端部を前記山
止め壁（１）の頂部に載置した梁（２）に吊下げ具（３
）を介して吊り下げ支持させてある特許請求の範囲第１
項に記載の地下構築物。 ３、前記吊下げ具（３）が外壁の縦筋である特許請求の
範囲第１項又は第２項に記載の地下構築物。[Claims] 1. In an underground structure in which the retaining wall (1) is a permanent structure and the end of the floor slab (FB) of the basement floor is supported by the retaining wall (1), Among the floor slabs (FB), the ends of the upper floor slab (F_B_n) are supported by the retaining wall (1), and the lower floor slab (F_B_n) is supported by the retaining wall (1).
B_n_+_1) to the upper floor slab (F_B
_n) is suspended and supported by a hanging device (3). 2. Attach the end of the upper floor slab (F_B_n) to the hanging tool (3) on the beam (2) placed on the top of the retaining wall (1).
) The claim 1 is suspended and supported via
Underground structures described in Section. 3. The underground structure according to claim 1 or 2, wherein the hanging tool (3) is a vertical reinforcement of an outer wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62011133A JPS63181831A (en) | 1987-01-20 | 1987-01-20 | Underground construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62011133A JPS63181831A (en) | 1987-01-20 | 1987-01-20 | Underground construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63181831A true JPS63181831A (en) | 1988-07-27 |
Family
ID=11769519
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62011133A Pending JPS63181831A (en) | 1987-01-20 | 1987-01-20 | Underground construction |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63181831A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07119168A (en) * | 1993-10-28 | 1995-05-09 | Kajima Corp | Method of reversely driving construction |
| JP2013057218A (en) * | 2011-09-09 | 2013-03-28 | Takenaka Komuten Co Ltd | Subsurface structure construction method |
| JP2018135658A (en) * | 2017-02-21 | 2018-08-30 | 大成建設株式会社 | Building structure |
-
1987
- 1987-01-20 JP JP62011133A patent/JPS63181831A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07119168A (en) * | 1993-10-28 | 1995-05-09 | Kajima Corp | Method of reversely driving construction |
| JP2013057218A (en) * | 2011-09-09 | 2013-03-28 | Takenaka Komuten Co Ltd | Subsurface structure construction method |
| JP2018135658A (en) * | 2017-02-21 | 2018-08-30 | 大成建設株式会社 | Building structure |
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