JPS6350491B2 - - Google Patents
Info
- Publication number
- JPS6350491B2 JPS6350491B2 JP58050993A JP5099383A JPS6350491B2 JP S6350491 B2 JPS6350491 B2 JP S6350491B2 JP 58050993 A JP58050993 A JP 58050993A JP 5099383 A JP5099383 A JP 5099383A JP S6350491 B2 JPS6350491 B2 JP S6350491B2
- Authority
- JP
- Japan
- Prior art keywords
- formwork
- underground wall
- wall
- outer frame
- inner frame
- 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.)
- Expired
Links
- 238000009415 formwork Methods 0.000 claims description 44
- 239000000463 material Substances 0.000 claims description 24
- 239000002699 waste material Substances 0.000 claims description 14
- 238000010276 construction Methods 0.000 claims description 13
- 230000003014 reinforcing effect Effects 0.000 claims description 13
- 239000004576 sand Substances 0.000 claims description 6
- 239000004567 concrete Substances 0.000 claims description 5
- 239000002689 soil Substances 0.000 claims description 4
- 229920006248 expandable polystyrene Polymers 0.000 claims description 3
- 230000002787 reinforcement Effects 0.000 claims description 2
- 238000005520 cutting process Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 239000011150 reinforced concrete Substances 0.000 description 4
- 238000005266 casting Methods 0.000 description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 229920006328 Styrofoam Polymers 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000001568 sexual effect Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000008261 styrofoam Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/18—Bulkheads or similar walls made solely of concrete in situ
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Bulkheads Adapted To Foundation Construction (AREA)
Description
【発明の詳細な説明】
本発明は、連続地中壁工法に関するものであ
る。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a continuous underground wall construction method.
一般木造住宅を建設するにおいて、土地利用の
点から地下室を設け、この地下室に上家の基礎を
兼ねさせることがある。そして地下室は従来その
躯体を鉄筋コンクリート現場打により成形されて
いた。しかし前記した従来の鉄筋コンクリート現
場打工法では、仮設工事において根切り時仮囲
い、切土面崩落防止処置、鉄筋足場や型枠足場な
どが必要であり、また土工事における余掘り、法
切りにより根切り・埋戻量が増大するものであつ
た。そしてコンクリート工事においても作業条件
の悪い根切り部で型枠建込みや鉄筋加工組立てを
行なわなければならなかつた。またこのように鉄
筋コンクリート現場打における地下室の躯体形成
は工程が多く複雑であるため工期が長期にわたる
とともに、各作業に危険が伴い、一般木造住宅の
建設コストが著しく高くなる欠点があつた。 When constructing a general wooden house, a basement is sometimes provided from the viewpoint of land use, and this basement also serves as the foundation of the upper house. Conventionally, the framework of the basement was formed by pouring reinforced concrete in-situ. However, the conventional reinforced concrete on-site casting method described above requires temporary fencing during root cutting, measures to prevent the cut surface from collapsing, reinforcing scaffolding, formwork scaffolding, etc.; The amount of cutting and backfilling increased. And even in concrete work, it was necessary to erect formwork and process and assemble reinforcing bars at root cuttings, where working conditions were poor. In addition, forming the framework of a basement using reinforced concrete cast on-site is a complicated process with many steps, which leads to long construction times, each work is dangerous, and the cost of constructing a regular wooden house increases significantly.
本発明は、上記した従来の欠点を考慮してなさ
れたもので、予め掘削された溝に複数の壁型枠と
コーナー型枠とから捨型枠を設け、該捨型枠によ
り地中壁を形成したのち地中壁に囲まれた地盤を
掘削し、土間を形成することから、仮設工事にお
ける根切り時の山留めを不必要にし、根切り・埋
戻量を最小限におさえて地下室の躯体形成コスト
を下げるとともに、躯体形成の工期を短縮させる
ことを目的とするものである。 The present invention has been made in consideration of the above-mentioned conventional drawbacks, and includes providing a waste form made of a plurality of wall forms and corner forms in a pre-excavated trench, and using the waste form to form an underground wall. After the formation, the ground surrounded by the underground wall is excavated to form the earthen floor, which eliminates the need for heap retaining during root cutting during temporary construction work, and minimizes the amount of root cutting and backfilling. The purpose is to reduce the construction cost and shorten the construction period for building the framework.
次に、本発明を図示の一実施例に基づいて詳細
に説明する。 Next, the present invention will be explained in detail based on an illustrated embodiment.
図中１は壁型枠で、壁型枠１はパネル状の外枠
材４と内枠材５、そして外枠材４と内枠材５との
間に設けられた鉄筋格子６とからなるものであ
る。なお外枠材４と内枠材５はスタイロフオーム
などの加工性の良い押出発泡ポリスチレン板を用
いる。そして外枠材４の上端縁と内枠材５の上端
縁とに架設されたトツププレート７と、外枠材４
の下端縁と内枠材５の下端縁とに架設されたベー
スプレート８とには、それぞれＵ字溝状の鉄筋支
持部７ａ，８ａが設けられており、またセパレー
タ９にも鉄筋格子６が着脱自在に取着する凹部９
ａが設けられており、前記したトツププレート７
とベースプレート８との鉄筋支持部７ａ，８ａ
と、セパレータ９の凹部９ａとに鉄筋格子６が支
持され外枠材４と内枠材５との間に位置決め固定
される。 In the figure, 1 is a wall formwork, and the wall formwork 1 consists of a panel-shaped outer frame material 4, an inner frame material 5, and a reinforcing bar lattice 6 provided between the outer frame material 4 and the inner frame material 5. It is something. As the outer frame material 4 and the inner frame material 5, extruded foamed polystyrene plates with good workability, such as Styrofoam, are used. A top plate 7 is installed between the upper edge of the outer frame member 4 and the upper edge of the inner frame member 5, and the outer frame member 4
A base plate 8 installed between the lower end edge and the lower end edge of the inner frame member 5 is provided with U-shaped reinforcing bar support portions 7a and 8a, respectively, and a reinforcing bar grid 6 is also attached to and detached from the separator 9. Recessed part 9 for attaching freely
a is provided, and the above-mentioned top plate 7
and the reinforcing bar support parts 7a, 8a of the base plate 8
A reinforcing bar lattice 6 is supported by the recesses 9a of the separator 9 and positioned and fixed between the outer frame member 4 and the inner frame member 5.
２はコーナー型枠である。該コーナー型枠２は
上記壁型枠１と同様に外枠材４と内枠材５、そし
て外枠材４と内枠材５との間に設けられた鉄筋格
子６とからなるもので、２枚の外枠材４と２枚の
内枠材５とがそれぞれコーナージヨイント部材１
１を介して直角に突き合わされ、鉄筋格子６も相
互定着するように直角に重ね合わされている。そ
して鉄筋格子６はトツププレート７とベースプレ
ート８とセパレータ９とにより位置決め固定され
ている。 2 is a corner formwork. The corner formwork 2 consists of an outer frame material 4, an inner frame material 5, and a reinforcing bar lattice 6 provided between the outer frame material 4 and the inner frame material 5, similar to the wall formwork 1 described above. Two outer frame members 4 and two inner frame members 5 each form a corner joint member 1.
1 are abutted against each other at right angles, and the reinforcing bar grids 6 are also overlapped at right angles so as to be mutually anchored. The reinforcing bar grid 6 is positioned and fixed by a top plate 7, a base plate 8, and a separator 9.
壁型枠１とコーナー型枠２との鉄筋格子６の上
端には上家布基礎用さし筋ｄが結束されており、
左右端は壁型枠１同士および壁型枠１とコーナー
型枠２とが連設された際重なり合い相互定着する
ように、外枠材４および内枠材５の側縁より側方
に突出して設けられている。 At the upper end of the reinforcing bar lattice 6 of the wall formwork 1 and corner formwork 2, struts d for the upper house cloth foundation are tied,
The left and right ends protrude laterally from the side edges of the outer frame material 4 and the inner frame material 5 so that when the wall formworks 1 and the wall formwork 1 and the corner formwork 2 are installed in series, they overlap and are fixed to each other. It is provided.
次に施工手順を示す。 The construction procedure is shown below.
(イ) 地中壁形成域全てに亘つて予め所定の深さに
溝１５を掘削し、溝１５の底部にガイドポール
１０の設置場所をマーキングしてガイドポール
１０を垂直に設置する。ガイドポール１０は第
５図に示すように、打込み側先端に水平に突き
出たレベル設定用ツバｃが設けられており、レ
ベル設定用ツバｃの側端は下方に折曲されてア
ウトリガーを形成している。(a) A groove 15 is excavated in advance to a predetermined depth throughout the entire underground wall forming area, the installation location of the guide pole 10 is marked on the bottom of the groove 15, and the guide pole 10 is installed vertically. As shown in FIG. 5, the guide pole 10 is provided with a level setting collar c projecting horizontally at the driving side tip, and the side end of the level setting collar c is bent downward to form an outrigger. ing.
(ロ) コーナー型枠２のベースプレート８とトツプ
プレート７とに穿設されたガイド孔７ｂ，８ｂ
にガイドポール１０を挿入し、該ガイドポール
１０を案内としてコーナー型枠２を溝１５のコ
ーナーに落とし込み設置する。落とし込まれた
コーナー型枠２の側部にコーナー型枠２と同様
にしてガイドポール１０を壁型枠１のベースプ
レート８とトツププレート７とのガイド孔７
ｂ，８ｂに挿入し壁型枠１を落とし込む。そし
て落とし込まれた壁型枠１の側部に複数個の壁
型枠１を次々に落とし込んで連設し溝１５に地
中盤の捨型枠３を形成する。１２は断面Ｈ状の
ジヨイント部材で、外枠材４と外枠材４との
間、および内枠材５と内枠材５との間に設けら
れて枠材同士を連結し、連設される複数枚の外
枠材４および内枠材５を面一にするものであ
る。また１３は断面コ字型の笠木で、捨型枠３
の連続した外枠材４および内枠材５の上端に冠
着されている。該笠木１３に固定金具を係止さ
せることにより捨型枠３の形状修正および支持
固定することができるものである。(b) Guide holes 7b, 8b bored in the base plate 8 and top plate 7 of the corner formwork 2
A guide pole 10 is inserted into the groove 15, and the corner formwork 2 is dropped into the corner of the groove 15 and installed using the guide pole 10 as a guide. In the same way as the corner formwork 2, guide poles 10 are attached to the side of the dropped corner formwork 2 through the guide holes 7 between the base plate 8 and the top plate 7 of the wall formwork 1.
b, 8b and drop the wall formwork 1 into it. Then, a plurality of wall formworks 1 are successively dropped into the side of the dropped wall formwork 1 and installed in series to form a subterranean waste formwork 3 in the groove 15. Reference numeral 12 denotes a joint member having an H-shaped cross section, which is provided between the outer frame members 4 and between the inner frame members 5 and between the inner frame members 5, and connects the frame members to each other. A plurality of outer frame members 4 and inner frame members 5 are made flush with each other. In addition, 13 is a Kasagi with a U-shaped cross section, and the waste form frame 3
It is attached to the upper ends of the continuous outer frame material 4 and inner frame material 5. By locking a fixing metal fitting to the cap 13, the shape of the waste form 3 can be modified and the shape can be supported and fixed.
(ハ) 捨型枠３と溝１５の側面との間に山砂１４を
埋戻すとともに捨型枠３の底部に山砂１４を土
間厚分埋戻し、捨型枠３内に水を打つて山砂１
４を平坦に分布させる。そして地中壁コンクリ
ートを打設して地中壁を形成する。(c) Backfill mountain sand 14 between the waste form 3 and the side of the trench 15, backfill the bottom of the waste form 3 with mountain sand 14 to the thickness of the soil floor, and pour water into the waste form 3. Mountain sand 1
4 is distributed evenly. Then, underground wall concrete is poured to form the underground wall.
(ニ) 地中壁により囲まれた地盤を掘削し、地中壁
の土間打継ぎ部分の山砂１４を取り除く。なお
ｅはカイモノである。(d) Excavate the ground surrounded by the underground wall and remove mountain sand 14 from the earthen floor joint of the underground wall. Note that e is Kaimono.
(ホ) 土間配筋を行ない土間コンクリートを打設
し、基礎兼用地下室の躯体を形成する。(E) Arrange soil reinforcement and pour concrete on the soil floor to form the framework of the basement that also serves as the foundation.
したがつて上記した本発明によれば、地中壁設
置場所以外の作業性の良い場所で型枠を形成する
ので、鉄筋足場や型枠足場が不要となり、型枠の
寸法精度を高くすることができるとともに、外枠
材と内枠材との加工性がすこぶる良く、型枠形成
コストを低減し、型枠作成作業が簡単に行えるよ
うになる。また根切り時の山留めが不要となるば
かりか、土工事における根切り・埋戻量を減少さ
せることができ、従来の鉄筋コンクリート現場打
に比べて工期が短かく躯体形成コストを低減させ
るなど、実用性にすぐれた効果を奏するものであ
る。 Therefore, according to the present invention described above, since the formwork is formed in a place with good workability other than the place where the underground wall is installed, there is no need for reinforcing steel scaffolding or formwork scaffolding, and the dimensional accuracy of the formwork can be improved. In addition to this, the workability of the outer frame material and the inner frame material is extremely good, the cost of forming the formwork is reduced, and the work of forming the formwork can be easily performed. In addition, it not only eliminates the need for mountain retaining when cutting roots, but also reduces the amount of root cutting and backfilling during earthworks, shortening the construction period and reducing the cost of building a frame compared to conventional reinforced concrete site casting. It has excellent sexual effects.
第１図は本発明の捨型枠による連続地中壁工法
の一実施例における壁型枠の説明図、第２図は同
じく一実施例におけるコーナー型枠の説明図、第
３図は同じく一実施例におけるトツププレートと
ベースプレートの斜視図、第４図は同じく一実施
例におけるセパレータの説明図、第５図は同じく
一実施例におけるガイドポールの説明図、第６図
から第１２図は本発明の捨型枠による連続地中壁
工法の一実施例の説明図である。
１……壁型枠、２……コーナー型枠、３……捨
型枠、４……外枠材、５……内枠材、６……鉄筋
格子。
FIG. 1 is an explanatory diagram of wall formwork in one embodiment of the continuous underground wall construction method using waste formwork of the present invention, FIG. 2 is an explanatory diagram of corner formwork in the same embodiment, and FIG. A perspective view of a top plate and a base plate in an embodiment, FIG. 4 is an explanatory diagram of a separator in an embodiment, FIG. 5 is an explanatory diagram of a guide pole in an embodiment, and FIGS. 6 to 12 are illustrations of the present invention. FIG. 2 is an explanatory diagram of an example of a continuous underground wall construction method using abandoned formwork. 1... Wall formwork, 2... Corner formwork, 3... Discarded formwork, 4... Outer frame material, 5... Inner frame material, 6... Rebar lattice.
Claims (1)
掘削された溝に押出発泡ポリスチレン板よりなる
外枠材と押出発泡ポリスチレン板よりなる内枠材
と鉄筋格子とからなる複数個の壁型枠とコーナー
型枠とを連設させて落とし込み捨型枠を形成し、
該捨型枠と溝の側面との間を山砂により埋戻しか
つ捨型枠の土間打継ぎ部に山砂を埋戻し、捨型枠
に地中壁コンクリートを打設して地中壁を形成
し、該地中壁によつて囲まれた地盤を掘削したの
ち、根切り底にて土間配筋を行ない土間コンクリ
ートを打設して前記地中壁と連続した土間を形成
することを特徴とする捨型枠による連続地中壁工
法。 ２ 外枠材と内枠材とに架設されるセパレータと
ベースプレートとトツププレートにより鉄筋格子
を位置決め固定する特許請求の範囲第１項記載の
捨型枠による連続地中壁工法。 ３ 壁型枠とコーナー型枠とのそれぞれの上端に
取着されるトツププレートと、壁型枠とコーナー
型枠とのそれぞれの下端に取着されるベースプレ
ートとに設けられたガイド孔に、予め溝に立てら
れたガイドポールを挿入して、壁型枠とコーナー
型枠とを掘削溝へ垂直に落とし込む特許請求の範
囲第１項記載の捨型枠による連続地中壁工法。 ４ 外枠材と内枠材のそれぞれの側縁にジヨイン
ト部材を設けかつそれぞれ連続した複数個の外枠
材と内枠材の上端にコ字型の笠木を冠着する特許
請求の範囲第１項記載の捨型枠による連続地中壁
工法。[Scope of Claims] 1. An outer frame material made of an extruded foamed polystyrene board, an inner frame material made of an extruded foamed polystyrene board, and a reinforcing bar grid in a trench previously excavated to the bottom of the root cut throughout the entire underground wall forming area. A plurality of wall formwork and corner formwork are installed in series to form a dropped formwork,
Backfill the space between the waste form and the side of the trench with mountain sand, backfill the soil joint of the waste form with mountain sand, and pour underground wall concrete into the waste form to form the underground wall. After excavating the ground surrounded by the underground wall, earth reinforcement is placed at the bottom of the root cut and earth concrete is poured to form an earthen floor that is continuous with the underground wall. Continuous underground wall construction method using abandoned formwork. 2. A continuous underground wall construction method using a waste form according to claim 1, in which a reinforcing bar grid is positioned and fixed by a separator, a base plate, and a top plate constructed between an outer frame member and an inner frame member. 3. Guide holes provided in the top plate attached to the upper ends of the wall formwork and the corner formwork, and the base plate attached to the lower ends of the wall formwork and the corner formwork, are pre-inserted. A continuous underground wall construction method using waste formwork according to claim 1, wherein a guide pole set in the groove is inserted and the wall formwork and corner formwork are vertically dropped into the excavated groove. 4. Claim 1, in which a joint member is provided on each side edge of the outer frame material and the inner frame material, and U-shaped caps are crowned at the upper ends of a plurality of continuous outer frame materials and inner frame materials, respectively. Continuous underground wall construction method using abandoned forms as described in Section 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5099383A JPS59177422A (en) | 1983-03-26 | 1983-03-26 | Construction work of underground continuous wall using disposable formwork |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5099383A JPS59177422A (en) | 1983-03-26 | 1983-03-26 | Construction work of underground continuous wall using disposable formwork |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59177422A JPS59177422A (en) | 1984-10-08 |
| JPS6350491B2 true JPS6350491B2 (en) | 1988-10-11 |
Family
ID=12874308
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5099383A Granted JPS59177422A (en) | 1983-03-26 | 1983-03-26 | Construction work of underground continuous wall using disposable formwork |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59177422A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102605763B (en) * | 2012-03-19 | 2014-10-08 | 葛洲坝集团第一工程有限公司 | Construction method for bottomless formwork of concrete protecting wall of slide-resistant pile |
| KR101705719B1 (en) * | 2016-07-01 | 2017-02-14 | 장성훈 | Underground wall having improved earthquake-resistant |
| CN108221957A (en) * | 2018-03-12 | 2018-06-29 | 中铁第四勘察设计院集团有限公司 | A kind of continuous underground wall structure |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4854713A (en) * | 1971-11-10 | 1973-08-01 |
-
1983
- 1983-03-26 JP JP5099383A patent/JPS59177422A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4854713A (en) * | 1971-11-10 | 1973-08-01 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59177422A (en) | 1984-10-08 |
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