JPH11172748A - Constructing method for large culvert - Google Patents
Constructing method for large culvertInfo
- Publication number
- JPH11172748A JPH11172748A JP36983897A JP36983897A JPH11172748A JP H11172748 A JPH11172748 A JP H11172748A JP 36983897 A JP36983897 A JP 36983897A JP 36983897 A JP36983897 A JP 36983897A JP H11172748 A JPH11172748 A JP H11172748A
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- Prior art keywords
- precast
- block
- cast
- concrete
- base
- Prior art date
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Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は暗渠断面が概ね３０ｍ２
以上の大型暗渠に関するもので、大型暗渠の構築費用の
低減，構築期間の短縮，構築人員の削減等を目的とする
ものである。The present invention relates to a culvert having a cross section of approximately 30 m 2.
The above-mentioned large culvert is intended to reduce the construction cost of a large culvert, shorten the construction period, reduce the number of construction personnel, and the like.
【０００２】[0002]
【従来の技術】従来は、暗渠断面が概ね３０ｍ２以上の
大型暗渠は、ほとんどが現場打鉄筋コンクリートによる
構築方法をとっていた。 2. Description of the Related Art Conventionally, a large underdrain having a cross section of approximately 30 m 2 or more has been constructed by using in-situ reinforced concrete.
【０００３】[0003]
【発明が解決しようとする課題】暗渠断面が概ね３０ｍ
２以上の大型暗渠は車両制限令により、プレキャストコ
ンクリート製品では施工現場までの輸送手段に問題があ
り、ほとんどが現場打鉄筋コンクリートによる構築方法
をとっていた。そこで本発明は輸送に問題のないプレキ
ャストコンクリート製品を用い、主に現場打鉄筋コンク
リートによる構築方法の間題点である次の点を解決しよ
うとしている。１）構築費用の低減。２）構築期間の短
縮。３）構築に携わる人員の削減。The cross section of a culvert is approximately 30 m.
Two or more large culverts have a problem in the means of transportation to the construction site for precast concrete products due to the restrictions on vehicles, and most of them have been constructed using cast-in-place reinforced concrete. Therefore, the present invention uses a precast concrete product having no problem in transportation, and aims to solve the following points which are problems in a construction method mainly using cast-in-place reinforced concrete. 1) Reduction of construction cost. 2) Shortening the construction period. 3) Reduction in the number of personnel involved in construction.
【０００４】[0004]
【課題を解決するための手段】そこで前記課題を解決す
るために、プレキャスト又は現場打床版（１）の上に、
現場打基礎底版コンクリート（２）を構築する際の、鉄
筋組み立て用の通し鉄筋孔（３）を有し、さらに上載す
るＴ型プレキャストブロック（１６）の受け枠を兼ね備
えた、人力でも簡単にレベル調整等が出来る前壁とその
後側面に突設した控壁を有するベースブロック（４）を
配列し、前壁とその後側面に突設し積み重ねて側壁を形
成する為に中空とした控壁を有した、Ｔ型プレキャスト
ブロック（７）に現場打基礎底版コンクリート（２）を
構築する際の、鉄筋組み立て用の通し鉄筋孔（３）を設
けたＴ型プレキャストブロック（１６）をベースブロッ
ク（４）に上載し、その後ベースブロック（４）及び、
上載のＴ型プレキャストブロック（１６）の通し鉄筋孔
（３）に基礎底版用鉄筋（９）をそれぞれ配筋し、控壁
中空部（８）の所定の位置に、必要量のポスト鉄筋
（５）を、ポスト鉄筋位置決め材（１０）で固定配列
し、スターラップ鉄筋（１２）でポスト鉄筋（５）を巻
き立て、控壁中空部（８）に側壁のＴ型プレキャストブ
ロック（７，１６）と現場打基礎底版コンクリート
（２）が完全一体化する様、胴込コンクリート（６）の
打設と、現場打基礎底版コンクリート（２）の打設を同
時に行い、Ｔ型プレキャストブロック（７）を順次積み
重ねて側壁を構築し、側壁最上部にはプレキャスト頂版
（１３）の、受台を兼ね備えたＴ型プレキャスト受台ブ
ロック（１４）を重設して、プレキャスト頂版（１３）
を架設して構築する。In order to solve the above-mentioned problems, a pre-cast or cast-in-place slab (1) is provided.
When constructing cast-in-place foundation bottom slab concrete (2), it has through-holes (3) for assembling rebar, and also has a receiving frame for T-type precast block (16) on top. A base block (4) having an anterior wall that can be adjusted and a retaining wall protruding from the rear side is arranged, and a hollow retaining wall is provided so as to protrude from the front wall and the rear side and stack to form a side wall. A T-type precast block (16) provided with a through-hole (3) for assembling a reinforcing bar when constructing a cast-in-place foundation bottom slab concrete (2) on a T-type precast block (7) is used as a base block (4). And then base block (4) and
Reinforcing bars (9) for the foundation bottom slab are respectively arranged in through-holes (3) of the T-type precast block (16) mounted above, and a required amount of post reinforcing bar (5) is provided at a predetermined position in the hollow portion (8) of the retaining wall. ) Is fixedly arranged with a post reinforcing bar positioning material (10), a post reinforcing bar (5) is wound up with a stirrup reinforcing bar (12), and a T-shaped precast block (7, 16) having a side wall is formed in a hollow portion of a retaining wall (8). The casting concrete (6) and the casting of the cast-in-place foundation slab (2) are simultaneously performed to completely integrate the cast-in-place foundation slab concrete (2) and the T-type precast block (7). A side wall is constructed by sequentially stacking, and a T-type precast cradle block (14) also serving as a cradle for the precast top slab (13) is superimposed on the uppermost portion of the side wall to form a precast top slab (13).
And construct it.
【０００５】[0005]
【作用】現場打基礎底版コンクリート（２）に内蔵され
る基礎底版用鉄筋（９）と、Ｔ型プレキャストブロック
（７，１６）の控壁部（１１）に内蔵されるポスト鉄筋
（５）、及び胴込コンクリート（６）の組み合わせによ
り、現場打基礎底版コンクリート（２）とＴ型プレキャ
ストブロック（７，１６）は、強力に合成一体化された
側壁となる。更に[Function] Reinforcing bar for base slab (9) built into cast-in-place foundation slab concrete (2), post reinforcing bar (5) built into retaining wall (11) of T-type precast block (7, 16), Due to the combination of the concrete and the body concrete (6), the cast-in-place base slab concrete (2) and the T-type precast blocks (7, 16) are strongly integrated side walls. Further
【図５】に示すごとく、大型暗渠を構築する為のプレキ
ャスト頂版（１３）の受台を兼ね備えたＴ型プレキャス
ト受台ブロック（１４）を、Ｔ型プレキャストブロック
（７）に重設し、プレキャスト頂版（１３）をＴ型プレ
キャスト受台ブロック（１４）に架設して、大型暗渠を
構築する。As shown in FIG. 5, a T-type precast cradle block (14) also serving as a cradle for a precast top plate (13) for constructing a large culvert is superimposed on a T-type precast block (7). The precast top plate (13) is erected on the T-type precast receiving block (14) to construct a large underdrain.
【０００６】[0006]
【実施例】本発明の実施例を図面によって説明するとBRIEF DESCRIPTION OF THE DRAWINGS FIG.
【図６】は、本発明に係る大型暗渠構築の実施例を示す
斜視図であり、同大型暗渠構築はプレキャスト又は現場
打床版（１）の上に、現場打基礎底版コンクリート
（２）を構築する際の鉄筋組み立て用の通し鉄筋孔
（３）を有し、さらに上載するＴ型プレキャストブロッ
ク（１６）の受け枠を兼ね備えた、人力でも簡単にレベ
ル調整等が出来る前壁とその後側面に突設した控壁を有
するベースブロック（４）を配列し、前壁とその後側面
に突設し積み重ねて側壁を形成する為に中空とした控壁
を有した、Ｔ型プレキャストブロック（７）に現場打基
礎底版コンクリート（２）を構築する際の、鉄筋組み立
て用の通し鉄筋孔（３）を設けたＴ型プレキャストブロ
ック（１６）をベースブロック（４）に上載し、その後
ベースブロック（４）及び、上載のＴ型プレキャストブ
ロック（１６）の通し鉄筋孔（３）に基礎底版用鉄筋
（９）をそれぞれ配筋し、Ｔ型プレキャストブロック
（７，１６）の控壁中空部（８）の所定の位置に、必要
量のポスト鉄筋（５）を配列し、Ｔ型プレキャストブロ
ック（７，１６）の控壁中空部（８）に、側壁のＴ型プ
レキャストブロック（７，１６）と現場打基礎底版コン
クリート（２）が完全一体化する様、胴込コンクリート
（６）の打設と現場打基礎底版コンクリート（２）の打
設を同時に行い、Ｔ型プレキャストブロック（７）を順
次積み重ねて側壁を構築する。尚、Ｔ型プレキャストブ
ロック（７，１６）の控壁部（１１）は、側壁下部ほど
土圧や地震力等の外力を強く受ける為、相応の断面耐力
を考慮し、側壁下部ほど控壁部（１１）は、上層の控壁
部（１１）よりも後方に延ばし、且つポスト鉄筋（５）
及び胴込コンクリート（６）を多く使用する構造にして
いる。このように側壁を構築し側壁最上部には、大型暗
渠を構築する為のプレキャスト頂版（１３）の受台を兼
ね備えたＴ型プレキャスト受台ブロック（１４）を重設
して、プレキャスト頂版（１３）を架設して構築する。FIG. 6 is a perspective view showing an embodiment of a large culvert construction according to the present invention. In the large culvert construction, a cast-in-place foundation bottom slab concrete (2) is placed on a precast or cast-in-place slab. It has a through-hole (3) for assembling the reinforcing bar when building, and also has a receiving frame for the T-type precast block (16) to be mounted on it. A T-type precast block (7) having a base block (4) having a protruding retaining wall arranged thereon, and protruding from a front wall and a rear side surface thereof and having a hollow retaining wall for forming a side wall by stacking. When constructing the cast-in-place foundation bottom slab concrete (2), a T-type precast block (16) provided with through-holes (3) for assembling reinforcing bars is placed on the base block (4), and then the base block (4). as well as Reinforcing bars (9) for the base bottom slab are respectively arranged in through-holes (3) of the T-type precast block (16) mounted thereon, and a predetermined hollow portion (8) of the retaining wall (8) of the T-type precast block (7, 16) is provided. The required amount of post reinforcement (5) is arranged at the position, and the T-type precast block (7, 16) on the side wall and the cast-in-place base slab are placed in the hollow portion (8) of the retaining wall of the T-type precast block (7, 16). In order to completely integrate the concrete (2), the casting concrete (6) and the cast-in-place base slab concrete (2) are simultaneously cast, and the T-type precast blocks (7) are sequentially stacked to construct the side wall. I do. Since the lower wall portion (11) of the T-type precast block (7, 16) receives more external force such as earth pressure and seismic force at the lower side wall, the lower the side wall, the lower the lower wall portion. (11) extends rearward from the upper retaining wall (11), and has a post reinforcing bar (5).
In addition, the construction is such that a large amount of concrete (6) is used. In this way, a T-type precast cradle block (14), which also serves as a cradle for a precast top plate (13) for constructing a large underdrain, is superimposed on the top of the side wall. (13) is erected and constructed.
【０００７】[0007]
【発明の効果】本発明によれば、According to the present invention,
【図５】に示すように大型暗渠の側壁背面側は、土圧等
の外力が作用すれば、引張力を受け、同時に側壁前面側
は圧縮力を受ける。側壁背面側と側壁前面側との間に、
引張力も圧縮力も生じない境界面、つまり中立面があ
り、中立面より後部の引張力圏内にある断面は、贅肉部
であり、この部分は贅肉部を剃り落としたＴ型プレキャ
ストブロック（７，１６）及び、Ｔ型プレキャスト受台
ブロック（１４）のように、スリムで無駄のない経済断
面として供給することで、大幅にコンクリートの使用量
を削減できることにより、構築コストの低減をはかる。
尚、As shown in FIG. 5, when an external force such as earth pressure is applied, the rear side of the side wall of the large culvert receives a tensile force, and at the same time, the front side of the side wall receives a compressive force. Between the side wall back side and the side wall front side,
There is a boundary surface where neither tensile force nor compressive force is generated, that is, a neutral surface, and a section in the tensile force range behind the neutral surface is a thick portion. This portion is a T-type precast block (7) in which the thick portion is shaved off. , 16) and a T-type precast cradle block (14), which can be supplied as a slim and lean economical cross section, so that the amount of concrete used can be greatly reduced, thereby reducing the construction cost.
still,
【図６】は、側壁部が深い場合の構築例を示したもので
あり、基礎部に近い下層ほど土圧等が増大する為、下層
のＴ型プレキャストブロック（７，１６）の控壁部（１
１）が、上層のＴ型プレキャストブロック（７）の控壁
部（１１）よりも、後方に延ばして土圧等に十分対応さ
せて、無駄のない最もスリムで経済的に構成した構築費
用の低減をはかったものである。この様に、本発明の暗
渠の構築は、工場で十分品質管理の上、生産されたプレ
キャスト製品であるベースブロック（４）やＴ型プレキ
ャストブロック（７，１６），Ｔ型プレキャスト受台ブ
ロック（１４）を使用して側壁部を構築のうえ、頂版部
のプレキャスト頂版（１３）を架設する。これらの各部
材の施工はほとんどが機械による作業である為、構築期
間の大幅な短縮と、大幅な人員削減となり、今後の新工
法としての大きな効果が期待できる。FIG. 6 shows an example of construction in a case where the side wall portion is deep. Since the earth pressure and the like increase in the lower layer closer to the foundation, the retaining wall portion of the lower T-type precast block (7, 16) is shown. (1
1) is the most slim and economical construction cost that is extended to the rear of the upper layer T-type precast block (7), extending backward from the retaining wall portion (11) to sufficiently cope with earth pressure, etc. It is intended to reduce it. As described above, the construction of the culvert according to the present invention is based on the base block (4), the T-type precast block (7, 16), and the T-type precast receiving block (T-type precast block), which are produced under sufficient quality control in the factory. After constructing the side wall portion using 14), a precast top plate (13) of the top plate portion is erected. Since the construction of each of these members is mostly performed by a machine, the construction period is greatly shortened and the number of personnel is significantly reduced, and a great effect as a new construction method in the future can be expected.
【図１】 プレキャスト又は現場打床版（１）にベース
ブロック（４）を配列した状態を示すFIG. 1 shows a state where base blocks (4) are arranged on a precast or cast-in-place slab (1).
【図２】FIG. 2
【図１】に於いてＴ型プレキャストブロック（１６）を
配列した状態を示すFIG. 1 shows a state in which T-type precast blocks (16) are arranged.
【図３】FIG. 3
【図２】に於いて基礎底版用鉄筋（９）及びポスト鉄筋
位置決め材（１０）を配筋し、ポスト鉄筋（５）をスタ
ーラップ鉄筋（１２）で巻き立てした状態を示すFIG. 2 shows a state in which a reinforcing bar (9) for a base bottom plate and a post reinforcing bar positioning material (10) are arranged, and a post reinforcing bar (5) is wound up with a stirrup reinforcing bar (12).
【図４】FIG. 4
【図３】に於いて現場打基礎底版コンクリート（２）と
胴込コンクリート（６）を打設した状態を示すFIG. 3 shows a state in which a cast-in-place foundation bottom slab concrete (2) and a casting concrete (6) are cast.
【図５】 本発明の大型暗渠で、現場打基礎底版コンク
リート（２）がフーチングタイプで、プレキャスト頂版
（１３）がＴ型ばりで、構築した実施例の斜視図を示すFIG. 5 is a perspective view of an embodiment of the large underdrain constructed according to the present invention, in which the cast-in-place foundation bottom slab concrete (2) is a footing type, and the precast top slab (13) is a T-shaped beam.
【図６】 本発明の大型暗渠で、側壁部が深い場合に、
Ｔ型プレキャストブロック（７）の控壁部（１１）が、
下層なほど後方に延ばして構築した実施例の斜視図を示
すFIG. 6 shows a large culvert of the present invention in which the side wall is deep;
The retaining wall (11) of the T-type precast block (7)
FIG. 2 shows a perspective view of an embodiment constructed by extending backward as far as the lower layer.
【図７】 本発明の大型暗渠で、現場打基礎底版コンク
リート（２）が一体の実施例の斜視図を示すFIG. 7 shows a perspective view of an embodiment of the large culvert of the present invention, in which the cast-in-place foundation bottom slab concrete (2) is integrated.
【図８】 本発明の大型暗渠で、土被りが多い場合の実
施例でプレキャスト頂版（１３）をアーチ型で、現場打
基礎底版コンクリート（２）が一体の実施例の斜視図を
示すFIG. 8 is a perspective view of an embodiment of the present invention in which a large culvert has a lot of earth covering, and in which the precast top slab (13) is an arch type and the cast-in-place foundation bottom slab concrete (2) is integrated.
【図９】 本発明の大型暗渠で、２連式で暗渠中間にプ
レキャスト中間支柱（１５）を使用して、プレキャスト
頂版（１３）をＴ型ばりで構築した実施例の斜視図を示
すFIG. 9 is a perspective view of an embodiment of a large underdrain according to the present invention in which a precast top plate (13) is constructed of a T-shaped beam using a precast intermediate support (15) in the middle of a double underdrain.
１；プレキャスト又は現場打床版 ２；現場打基礎底版コンクリート ３；通し鉄筋孔 ４；ベースブロック ５；ポスト鉄筋 ６；胴込コンクリート ７；Ｔ型プレキャストブロック ８；控壁中空部 ９；基礎底版用鉄筋 １０；ポスト鉄筋位置決め材 １１；控壁部 １２；スターラップ鉄筋 １３；プレキャスト頂版 １４；Ｔ型プレキャスト受台ブロック １５；プレキャスト中間支柱 １６；通し鉄筋孔を設けたＴ型プレキャストブロック 1; precast or cast-in-place slab 2; cast-in-place foundation bottom slab concrete 3; through-reinforcing hole 4; base block 5; post-reinforcing bar 6; body concrete 7; T-type precast block 8; Reinforcing bar 10; Post reinforcing bar positioning material 11; Retaining wall portion 12; Stirrup reinforcing bar 13; Precast top plate 14; T-type precast receiving block 15; Precast intermediate support 16; T-type precast block provided with through-holes
Claims (1)
に、現場打基礎底版コンクリート（２）を構築する際
の、鉄筋組み立て用の通し鉄筋孔（３）を有し、さらに
上載するＴ型プレキャストブロック（１６）の受け枠を
兼ね備えた、人力でも簡単にレベル調整等が出来る前壁
とその後側面に突設した控壁を有するベースブロック
（４）を配列し、前壁とその後側面に突設し積み重ねて
側壁を形成する為に中空とした控壁を有した、Ｔ型プレ
キャストブロック（７）に現場打基礎底版コンクリート
（２）を構築する際の、鉄筋組み立て用の通し鉄筋孔
（３）を設けたＴ型プレキャストブロック（１６）をベ
ースブロック（４）に上載し、その後ベースブロック
（４）及び、上載のＴ型プレキャストブロック（１６）
の通し鉄筋孔（３）に基礎底版用鉄筋（９）をそれぞれ
配筋し、控壁中空部（８）の所定の位置に、必要量のポ
スト鉄筋（５）を、ポスト鉄筋位置決め材（１０）で固
定配列し、スターラップ鉄筋（１２）でポスト鉄筋
（５）を巻き立て、控壁中空部（８）に側壁のＴ型プレ
キャストブロック（７，１６）と現場打基礎底版コンク
リート（２）が完全一体化する様、胴込コンクリート
（６）の打設と、現場打基礎底版コンクリート（２）の
打設を同時に行い、Ｔ型プレキャストブロック（７）を
順次積み重ねて側壁を構築し、側壁最上部にはプレキャ
スト頂版（１３）の、受台を兼ね備えたＴ型プレキャス
ト受台ブロック（１４）を重設して、プレキャスト頂版
（１３）を架設してなる 【図５】の様な大型暗渠の構築方法。1. A precast or cast-in-place casting slab (1) having a through-hole (3) for assembling a reinforcing bar when constructing a cast-in-place base slab concrete (2). A base block (4) having a front wall having a receiving frame of a mold precast block (16) and capable of easily adjusting the level by manual power and a retaining wall protruding from a rear side thereof is arranged. Through-holes for assembling reinforcing bars when constructing cast-in-place foundation bottom slabs (2) on T-type precast blocks (7) having hollow retaining walls to protrude and stack to form side walls ( The T-type precast block (16) provided with 3) is mounted on the base block (4), and then the base block (4) and the T-type precast block (16) mounted on the base block (4).
Reinforcing bars (9) for the base bottom slab are arranged in the through-holes (3), and a required amount of post-reinforcing bar (5) is placed at a predetermined position in the hollow portion (8) of the retaining wall. ), The post reinforcing bar (5) is rolled up with the stirrup reinforcing bar (12), the T-type precast block (7, 16) on the side wall and the cast-in-place foundation bottom slab concrete (2) in the hollow wall (8). The casting concrete (6) and the cast-in-place foundation bottom slab concrete (2) are simultaneously performed so that the concrete is completely integrated, and the T-type precast blocks (7) are sequentially stacked to construct a side wall. At the top, a T-type precast receiving block (14) also serving as a receiving base for the precast top plate (13) is superposed, and the precast top plate (13) is erected. How to build a large culvert.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP36983897A JP4013170B2 (en) | 1997-12-12 | 1997-12-12 | How to build a large culvert |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP36983897A JP4013170B2 (en) | 1997-12-12 | 1997-12-12 | How to build a large culvert |
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| Publication Number | Publication Date |
|---|---|
| JPH11172748A true JPH11172748A (en) | 1999-06-29 |
| JP4013170B2 JP4013170B2 (en) | 2007-11-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| JP36983897A Expired - Fee Related JP4013170B2 (en) | 1997-12-12 | 1997-12-12 | How to build a large culvert |
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| JP (1) | JP4013170B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100446046B1 (en) * | 2002-03-05 | 2004-08-30 | 한국건설기술연구원 | Culvert and culvert method by segmental block |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101135082B1 (en) | 2010-04-19 | 2012-04-13 | 민동구 | Temporary levee structure |
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1997
- 1997-12-12 JP JP36983897A patent/JP4013170B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100446046B1 (en) * | 2002-03-05 | 2004-08-30 | 한국건설기술연구원 | Culvert and culvert method by segmental block |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4013170B2 (en) | 2007-11-28 |
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