JP2554027B2 - Retaining wall block and retaining wall construction method - Google Patents
Retaining wall block and retaining wall construction methodInfo
- Publication number
- JP2554027B2 JP2554027B2 JP6259046A JP25904694A JP2554027B2 JP 2554027 B2 JP2554027 B2 JP 2554027B2 JP 6259046 A JP6259046 A JP 6259046A JP 25904694 A JP25904694 A JP 25904694A JP 2554027 B2 JP2554027 B2 JP 2554027B2
- Authority
- JP
- Japan
- Prior art keywords
- retaining wall
- block
- wall block
- bottom slab
- vertical wall
- 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 - Fee Related
Links
- 238000010276 construction Methods 0.000 title description 12
- 230000000630 rising effect Effects 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 4
- 230000003014 reinforcing effect Effects 0.000 description 6
- 238000009415 formwork Methods 0.000 description 5
- 238000005452 bending Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 230000002787 reinforcement Effects 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Landscapes
- Retaining Walls (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、垂直壁部と底版部とを
有するＬ字状、コ字状、乙字状等の擁壁ブロック、特
に、コーナー部分のように折れ曲がった部分に用いて好
適な擁壁ブロック、並びにこのブロックを用いた擁壁の
構築方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is suitable for use in an L-shaped, U-shaped, O-shaped retaining wall block having a vertical wall portion and a bottom slab portion, and particularly for a bent portion such as a corner portion. Retaining wall block and a method of constructing a retaining wall using this block.
【０００２】[0002]
【従来の技術】コーナー部分やカーブ部分に用いる擁壁
ブロックは、実開平５−９６１４２号に、垂直壁部と底
版部とを有する２個のブロックピースを垂直壁部に埋設
した可撓帯で接続一体化し折り曲げ自在に形成するもの
が提案され、画期的なものとして評価されている。2. Description of the Related Art A retaining wall block used for a corner portion or a curved portion is a flexible band in which two block pieces having a vertical wall portion and a bottom plate portion are embedded in the vertical wall portion in Japanese Utility Model Laid-Open No. 5-96142. One that has been integrated into a connection and formed so that it can be bent freely has been proposed and evaluated as an epoch-making one.
【０００３】[0003]
【発明が解決しようとする課題】上記の擁壁ブロック
は、コーナー部分やカーブ部分の擁壁施工がきわめて容
易にできるので、高い評価を得ているが、次のような課
題も持っている。すなわち、折り曲げ自在となるよう
に、底版部中央に上から見てＶ字形の切欠を設けてい
る。したがって、擁壁を構築した場合、この部分に底版
が存在しないこととなり、垂直壁部に作用する土圧に対
する抵抗力が弱くなるのである。したがって、軟弱地盤
など条件が悪い場合には用いることができず、また、施
工後に土圧による変形が生じるおそれもあった。The above retaining wall block is highly praised because it is very easy to construct a retaining wall at a corner portion or a curved portion, but it also has the following problems. That is, a V-shaped notch is provided at the center of the bottom plate portion so as to be bendable. Therefore, when the retaining wall is constructed, the bottom slab does not exist in this portion, and the resistance force against the earth pressure acting on the vertical wall portion is weakened. Therefore, it cannot be used under poor conditions such as soft ground, and may be deformed by earth pressure after construction.
【０００４】[0004]
【課題を解決するための手段】本発明は上記の課題を解
決するためになされたもので、垂直壁部と底版部とを有
する２個のブロックピースを垂直壁部に埋設した可撓帯
で接続一体化し折り曲げ自在に形成した擁壁ブロックに
おいて、底版部の外側端に立上部を形成したことを特徴
とする擁壁ブロック、及び、底版部の外側端及び背面端
に立上部を形成したことを特徴とする擁壁ブロック、並
びに、これらの擁壁ブロックを設置した後、底版部の左
右両外側端立上部の間に現場打ちコンクリートによる補
強底版を設けることを特徴とする擁壁の構築方法であ
る。The present invention has been made to solve the above-mentioned problems, and is a flexible band in which two block pieces having a vertical wall portion and a bottom plate portion are embedded in the vertical wall portion. In a retaining wall block that is integrally connected and bendable, a rising portion is formed at the outer end of the bottom slab portion, and a rising portion is formed at the outer end and the rear end of the bottom slab portion. Retaining wall blocks characterized by the following, and a method of constructing a retaining wall characterized in that after installing these retaining wall blocks, a reinforced bottom plate made of cast-in-place concrete is provided between the left and right outer edges of the bottom plate part. Is.
【０００５】[0005]
【作用】本発明の擁壁ブロックは、底版部の外側端に立
上部を形成したので、この立上部を型枠として、立上部
の間に容易に現場打ちコンクリートによる補強底版を形
成することができる。補強底版を形成することにより、
２つに別れていた左右の底版が一体化され、垂直壁部に
作用する土圧に対する抵抗力が増加するとともに、可撓
帯で折り曲げ自在だった部分が固定化されるので、施工
後にこの部分が変形するおそれも少なくなる。In the retaining wall block of the present invention, since the rising portion is formed at the outer end of the bottom slab portion, the rising portion can be used as a formwork to easily form a reinforced bottom slab with cast-in-place concrete between the rising portions. it can. By forming a reinforced bottom plate,
The left and right bottom slabs, which had been separated into two parts, are integrated, and the resistance to earth pressure acting on the vertical wall increases, and the part that can be bent by the flexible band is fixed, so this part after construction There is less risk of deformation.
【０００６】また、底版部の外側端及び背面端に立上部
を形成すると、背面端の立上部も型枠として利用できる
ので、補強底版の形成がより容易となる。ただし、この
場合は補強底版の面積がやや小さくなる。Further, when the rising portions are formed at the outer end and the rear end of the bottom slab, the rising portions at the rear end can also be used as a mold, so that the reinforcing bottom plate can be formed more easily. However, in this case, the area of the reinforced bottom plate is slightly smaller.
【０００７】立上部の内側面に段部を形成すると、この
段部に鉄筋を載せ、スペーサーとして使用できるので、
補強底版の形成がさらに容易となる。When a step is formed on the inner surface of the rising portion, the reinforcing bar can be placed on this step and used as a spacer.
It becomes easier to form the reinforced bottom plate.
【０００８】[0008]
【実施例】以下実施例を表した図面を参照しつつ本発明
を詳細に説明する。図１は本発明の１実施例たる擁壁ブ
ロック１の斜視図、図２は擁壁ブロック１による擁壁の
構築状態の説明図、図３は図２におけるＡ−Ａ線断面
図、図４は他の実施例の擁壁ブロックの斜視図、図５は
擁壁ブロックによる擁壁の構築状態の説明図である。DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to the drawings showing the embodiments. FIG. 1 is a perspective view of a retaining wall block 1 which is an embodiment of the present invention, FIG. 2 is an explanatory diagram of a construction state of a retaining wall by the retaining wall block 1, FIG. 3 is a sectional view taken along the line AA in FIG. Is a perspective view of a retaining wall block of another embodiment, and FIG. 5 is an explanatory view of a retaining wall constructed by the retaining wall block.
【０００９】擁壁ブロック１は、図１に示すように、２
個のブロックピース１ａ、１ｂを可撓帯４で接続一体化
した構成となっている。ブロックピース１ａ、１ｂは垂
直壁部２と底版部３でＬ字状に形成され、垂直壁部に埋
設された可撓帯４で接続一体化されている。垂直壁部の
外端面には連結金具５が片側２個合計４個設けられてい
る。底版部３の可撓板で接続された接続部分付近には、
切欠面６が形成され、上方から見るとＶ字状に切り欠か
かれた形状をなし、可撓帯での折り曲げに支障ないよう
になっている。このような切欠は、ブロックの使用目
的、必要折り曲げ角度により適宜行われる。可撓帯４
は、擁壁ブロック１の製造の際にコンクリートが硬化す
る前にブロックに埋設されたもので、ステンレスの薄板
でなり、両端を鉤状に折り曲げて、引張り力が作用して
もコンクリートから抜けにくいようになっている。本実
施例においては、可撓帯４が垂直壁部２の全長に亘って
埋設されているが、必ずしも全長である必要はなく、１
部分であってもよい。また、可撓帯の材質も本実施例に
限定されるものではない。底版部３の両外側端には立上
部７が形成され、その内側面には段部８が形成されてい
る。As shown in FIG. 1, the retaining wall block 1 has 2
The block pieces 1a and 1b are connected and integrated by a flexible band 4. The block pieces 1a and 1b are formed in an L shape by the vertical wall portion 2 and the bottom plate portion 3 and are connected and integrated by a flexible band 4 embedded in the vertical wall portion. On the outer end surface of the vertical wall portion, two connecting fittings 5 are provided on each side and a total of four connecting fittings 5 are provided. In the vicinity of the connecting portion connected by the flexible plate of the bottom plate portion 3,
The notch surface 6 is formed and has a V-shaped notch when viewed from above, so that bending in the flexible band is not hindered. Such notches are appropriately made depending on the purpose of use of the block and the required bending angle. Flexible band 4
Is embedded in the block before the concrete hardens when the retaining wall block 1 is manufactured. It is made of stainless steel thin plate, and both ends are bent like hooks, and it is hard to come off from the concrete even if a tensile force acts. It is like this. In the present embodiment, the flexible band 4 is embedded along the entire length of the vertical wall portion 2, but it does not necessarily have to be the entire length.
It may be a part. Further, the material of the flexible band is not limited to that of this embodiment. A rising portion 7 is formed on both outer ends of the bottom plate portion 3, and a step portion 8 is formed on the inner side surface thereof.
【００１０】擁壁ブロック１をカーブ施工に用いた場
合、図２に示すように、可撓帯４において現場に合った
折り曲げ角度で折り曲げて敷設する。連結部分１０では
直線状に密着して連結できるので、連結金具は特殊なも
のとする必要がなく、通常の直線施工時に用いるものを
使用できる。When the retaining wall block 1 is used for a curve construction, as shown in FIG. 2, the flexible band 4 is bent and laid at a bending angle suitable for the site. Since the connecting portion 10 can be connected in a straight line in close contact with each other, the connecting metal fitting does not need to be special, and the one used during normal linear construction can be used.
【００１１】擁壁ブロック１を設置した後、段部８の上
に格子状に組んだ鉄筋２０を載せ、図２、３に示すよう
に、立上部の間に現場打ちコンクリートによる補強底版
９を形成する。補強底版を形成することにより、２つに
別れていた左右の底版が一体化され、垂直壁部に作用す
る土圧に対する抵抗力が増加するとともに、可撓帯で折
り曲げ自在だった部分が固定化されるので、施工後にこ
の部分が変形するおそれが少なくなる。After the retaining wall block 1 is installed, the reinforcing bars 20 assembled in a grid pattern are placed on the stepped portion 8 and, as shown in Figs. Form. By forming a reinforced bottom slab, the left and right bottom slabs, which had been separated into two, are integrated, increasing the resistance to earth pressure acting on the vertical wall, and fixing the part that can be bent freely with a flexible band. Therefore, the risk of deformation of this portion after construction is reduced.
【００１２】鉄筋２０は、図３に示すように、段部８に
載せることによりスペーサーが不要で、立上部７は型枠
として利用できるので、現場で制作する型枠は背面の１
面のみでよく、施工がきわめて簡単である。As shown in FIG. 3, the reinforcing bar 20 does not need a spacer by being placed on the stepped portion 8, and the rising portion 7 can be used as a formwork, so that the formwork to be produced on site is the rear surface 1
Only the surface is required and construction is extremely easy.
【００１３】図４に示す擁壁ブロック１１は、ブロック
ピース１１ａ、１１ｂ、垂直壁部１２、底版部１３、可
撓帯１４、連結金具１５及び切欠面６が上述の実施例の
擁壁ブロック１と同じ構成となっている。擁壁ブロック
１と異なるのは、底版部１３の外側端のみならず、背面
端にも立上部１７が形成されている点である。立上部１
７の内側面には、やはり段部１８が形成されている。In the retaining wall block 11 shown in FIG. 4, the block pieces 11a and 11b, the vertical wall portion 12, the bottom plate portion 13, the flexible band 14, the connecting fitting 15 and the notch surface 6 are the retaining wall block 1 of the above-mentioned embodiment. It has the same structure as. What is different from the retaining wall block 1 is that not only the outer end of the bottom slab 13 but also the rising portion 17 is formed at the rear end. Rise 1
A step portion 18 is also formed on the inner side surface of 7.
【００１４】擁壁ブロック１１を設置した後は、前述の
実施例と同様に、段部の１８の上に格子状に組んだ鉄筋
を載せ、図５に示すように、立上部の間に現場打ちコン
クリートによる補強底版１９を形成する。底版の背面端
の立上部も型枠として利用されるので、現場で制作する
型枠はさらに小さくてよいので、現場施工が一層容易と
なる。ただし、この場合は補強底版の面積が前述の実施
例よりもやや小さくなるので、土圧にたいする抵抗力は
やや劣ることとなる。After the retaining wall block 11 is installed, the reinforcing bars assembled in a grid pattern are placed on the stepped portions 18 in the same manner as in the above-mentioned embodiment, and as shown in FIG. A reinforced bottom plate 19 made of cast concrete is formed. Since the rising part at the rear edge of the bottom slab is also used as the formwork, the formwork produced on site can be made smaller, which makes the site construction easier. However, in this case, the area of the reinforced bottom slab is slightly smaller than that in the above-mentioned embodiment, and therefore the resistance to earth pressure is slightly inferior.
【００１５】[0015]
【発明の効果】本発明の擁壁ブロックは、容易にコーナ
ー部分やカーブ部分を施工することができ、また、本発
明方法により現場において容易に補強底版を形成できる
ので、軟弱地盤など条件が悪い場合にも用いることがで
き、また、施工後に土圧による変形が生じるおそれも少
ない。INDUSTRIAL APPLICABILITY The retaining wall block of the present invention can easily construct a corner portion or a curved portion, and can easily form a reinforced bottom slab on the site by the method of the present invention, so that conditions such as soft ground are bad. It can be used in any case, and there is little risk of deformation due to earth pressure after construction.
【図１】本発明の１実施例たる擁壁ブロック１の斜視図
である。FIG. 1 is a perspective view of a retaining wall block 1 which is an embodiment of the present invention.
【図２】擁壁ブロック１による擁壁の構築状態の説明図
である。FIG. 2 is an explanatory diagram of a construction state of a retaining wall by the retaining wall block 1.
【図３】図２におけるＡ−Ａ線断面図である。3 is a cross-sectional view taken along the line AA in FIG.
【図４】他の実施例の擁壁ブロック１１の斜視図であ
る。FIG. 4 is a perspective view of a retaining wall block 11 according to another embodiment.
【図５】擁壁ブロック１１による擁壁の構築状態の説明
図である。FIG. 5 is an explanatory diagram of a construction state of a retaining wall by the retaining wall block 11.
１ 擁壁ブロック １ａ ブロックピース １ｂ ブロックピース ２ 垂直壁部 ３ 底版部 ４ 可撓帯 ５ 連結金具 ６ 切欠面 ７ 立上部 ８ 段部 ９ 補強底版 １０ 連結部分 １１ 擁壁ブロック １１ａ ブロックピース １１ｂ ブロックピース １２ 垂直壁部 １３ 底版部 １４ 可撓帯 １５ 連結金具 １６ 切欠面 １７ 立上部 １８ 段部 １９ 補強底版 ２０ 鉄筋 DESCRIPTION OF SYMBOLS 1 Retaining wall block 1a Block piece 1b Block piece 2 Vertical wall part 3 Bottom plate part 4 Flexible band 5 Connecting metal fittings 6 Notch surface 7 Standing up 8 Steps 9 Reinforcement bottom plate 10 Connecting part 11 Retaining wall block 11a Block piece 11b Block piece 12 Vertical wall part 13 Bottom plate part 14 Flexible band 15 Coupling metal fitting 16 Notch surface 17 Upright part 18 Step part 19 Reinforcement bottom plate 20 Reinforcing bar
Claims (4)
ックピースを垂直壁部に埋設した可撓帯で接続一体化し
折り曲げ自在に形成した擁壁ブロックにおいて、底版部
の外側端に立上部を形成したことを特徴とする擁壁ブロ
ック1. A retaining wall block in which two block pieces each having a vertical wall portion and a bottom slab portion are connected and integrated by a flexible band embedded in the vertical wall portion so as to be bendable. Retaining wall block characterized by forming an upper part
ックピースを垂直壁部に埋設した可撓帯で接続一体化し
折り曲げ自在に形成した擁壁ブロックにおいて、底版部
の外側端及び背面端に立上部を形成したことを特徴とす
る擁壁ブロック2. A retaining wall block in which two block pieces having a vertical wall portion and a bottom slab portion are connected and integrated by a flexible band embedded in the vertical wall portion so as to be bendable, and an outer end and a back surface of the bottom slab portion. Retaining wall block characterized by forming a rising part at the end
１又は請求項２の擁壁ブロック3. The retaining wall block according to claim 1, wherein a step is formed on the inner surface of the rising portion.
置した後、底版部の外側端立上部の間に現場打ちコンク
リートによる補強底版を設けることを特徴とする擁壁の
構築方法4. A method for constructing a retaining wall, comprising providing a retaining wall block according to claim 1, 2 or 3 and then providing a reinforced bottom slab made of cast-in-place concrete between outer side upright portions of the bottom slab portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6259046A JP2554027B2 (en) | 1994-09-29 | 1994-09-29 | Retaining wall block and retaining wall construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6259046A JP2554027B2 (en) | 1994-09-29 | 1994-09-29 | Retaining wall block and retaining wall construction method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0892980A JPH0892980A (en) | 1996-04-09 |
| JP2554027B2 true JP2554027B2 (en) | 1996-11-13 |
Family
ID=17328587
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6259046A Expired - Fee Related JP2554027B2 (en) | 1994-09-29 | 1994-09-29 | Retaining wall block and retaining wall construction method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2554027B2 (en) |
-
1994
- 1994-09-29 JP JP6259046A patent/JP2554027B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0892980A (en) | 1996-04-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2182430A1 (en) | Facing element for a stabilised earth structure | |
| JP2554027B2 (en) | Retaining wall block and retaining wall construction method | |
| JP2004190396A (en) | Half precast floor slab and construction method of floor using the same | |
| KR102035495B1 (en) | Double Wall Structure with Resisting Shear Force Member | |
| JP4547717B2 (en) | Concrete structures | |
| JP2690834B2 (en) | How to install the water stop plate | |
| JP6211731B1 (en) | Concrete pressure receiving plate and pressure receiving structure using the pressure receiving plate | |
| JP3578414B2 (en) | Construction method of reinforced concrete retaining wall | |
| JPH11315526A (en) | Joint method of concrete block | |
| KR100663800B1 (en) | Team spacer | |
| JPH0637160Y2 (en) | Sleeve fixed hardware | |
| JPH07113321A (en) | Residential cloth foundation construction method | |
| JPH10292557A (en) | Reinforcing bar for concrete product | |
| KR100696278B1 (en) | Flat spacer | |
| JP2545296Y2 (en) | PC folded beam formwork | |
| JP2538528B2 (en) | Slope stabilization method | |
| JP2730386B2 (en) | Construction method of concrete frame in embankment method | |
| KR100408735B1 (en) | Construction method of retaining wall | |
| JP2007308984A (en) | Spacer for constructing reinforced concrete | |
| JP3693989B2 (en) | Construction method of slab with steps | |
| JP2002115371A (en) | Spacer for construction of reinforced concrete | |
| KR200260265Y1 (en) | reinforced concrete unit having unified reinforcing rod and form | |
| JP2554422B2 (en) | Manufacturing method of precast concrete block for building foundation | |
| KR200414661Y1 (en) | Slab formwork for bridge | |
| JPH0642171A (en) | Bending type semiprecast beam form |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| LAPS | Cancellation because of no payment of annual fees |