JP3961404B2 - Retaining wall and method of forming retaining wall - Google Patents

Retaining wall and method of forming retaining wall Download PDF

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JP3961404B2
JP3961404B2 JP2002326403A JP2002326403A JP3961404B2 JP 3961404 B2 JP3961404 B2 JP 3961404B2 JP 2002326403 A JP2002326403 A JP 2002326403A JP 2002326403 A JP2002326403 A JP 2002326403A JP 3961404 B2 JP3961404 B2 JP 3961404B2
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retaining wall
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wall unit
laid
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JP2004162280A (en
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神秀 松林
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Goto Concrete Co Ltd
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Goto Concrete Co Ltd
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Description

【０００１】
【発明の属する技術分野】
本発明は、例えば、急勾配の傾斜を有した擁壁を構築するに際し、該急勾配の擁壁を耐久性を充分に保持して形成することが出来る擁壁及び擁壁の形成方法に関するものである。
【従来の技術】
従来、例えばコンクリート製品からなる擁壁ユニット部材２０を組み立て、急勾配の擁壁を構築するには、図５及び図６から理解されるように前記擁壁ユニット部材２０を上下方向に重ね合わせて積み上げ、かつそれら擁壁ユニット部材２０の背面部に長尺状の補強アンカー部材２１を直づけして取り付け、その後、各擁壁ユニット部材２０の背面に盛り土することにより擁壁を形成していた（例えば特許文献１参照）。
【０００２】
【特許文献１】
特開平９−１７７１０３号公報（図１及び図２）
【発明が解決しようとする課題】
しかしながら、前記従来の擁壁であると、長年の使用により盛り土の部分が沈下することがあり、その結果その盛り土の沈下に引きずられて前記補強アンカー部材２１も沈下することとなり、ひいては擁壁ユニット部材２０が積み重ねられて形成された擁壁から、補強アンカー部材２１に引きずられ、沈下した擁壁ユニット部材２０がずれてはみ出したり、外れたりして前記擁壁が破壊してしまうことがあった。
【０００３】
かくして、本発明は前記従来の課題に対処すべく創案されたものであって、擁壁の構築に際し、長年の使用によって、たとえ擁壁ユニット部材背面の盛り土部が沈下したとしても、擁壁ユニット部材部がそれに引っ張られてずれてはみ出したり、外れたりすることのなく、擁壁ユニット部材が破壊することがなく、また、擁壁を構成する擁壁ユニット部材も強固に固定されて擁壁の表面側にも背面側にもずれることのない擁壁及び擁壁の形成方法を提供することを目的とするものである。
【課題を解決するための手段】
本発明による擁壁及び擁壁の形成方法は、
略平板方形状をなし、表面部を有する擁壁形成部と、該擁壁形成部の背面から後方に向けて直交方向に張り出す棒状のアンカー部と、を備え、前記擁壁形成部の下端面には表面側から厚み方向中間部にかけて直方体状の切り欠き条部が長手方向に形成された擁壁ユニット部材を有してなり、
１段目に前記擁壁ユニット部材を敷設し、該１段目擁壁ユニット部材の背面側には前記擁壁ユニット部材の高さと略同等の高さに盛り土して第１段擁壁部を形成すると共に、場合によっては前記第１擁壁部の高さ方向略中間位置に前記１段目擁壁ユニット部材の背面より隙間をあけて網状をなす補強アンカー部材を敷き詰めて埋設してなり、
前記敷設した１段目の擁壁ユニット部材の上方には、２段目の擁壁ユニット部材を、前記２段目擁壁ユニット部材における擁壁形成部の切り欠き条部が前記１段目の擁壁ユニット部材における擁壁形成部上端面と対向する位置で、かつ厚み方向中間部に形成された前記切り欠き条部の壁面が前記１段目の擁壁ユニット部材における擁壁形成部背面側上端部より後方に位置するよう後ろにずらして配置し、２段目擁壁ユニット部材の背面側に前記擁壁ユニット部材の高さと略同等の高さに盛り土して第２段擁壁部を形成すると共に、前記第２段擁壁部の高さ方向略中間位置には前記２段目擁壁ユニット部材の背面より隙間をあけて網状をなす補強アンカー部材を敷き詰めて埋設し、
第３段擁壁部以降の擁壁部形成は順次前記第２段擁壁部の形成と同様に形成したことを特徴とし、
または、
前記補強アンカー部材の敷き詰め埋設は各段の擁壁部すべてに行われず、前記補強アンカー部材が敷き詰め埋設されていない擁壁部が存在することを特徴とし、
または、
略平板方形状をなし、表面部を有する擁壁形成部と、該擁壁形成部の背面から後方に向けて直交方向に張り出す棒状のアンカー部と、を備え、前記擁壁形成部の下端面には表面側から厚み方向中間部にかけて直方体状の切り欠き条部が長手方向に形成された擁壁ユニット部材を有してなり、
１段目に前記擁壁ユニット部材を敷設し、該１段目擁壁ユニット部材の背面側には前記擁壁ユニット部材の高さと略同等の高さに盛り土して第１段擁壁部を形成すると共に、場合によっては前記第１擁壁部の高さ方向略中間位置に前記１段目擁壁ユニット部材の背面より隙間をあけ、形成される擁壁部の大部分に敷き詰められる網状の補強アンカー部材を敷き詰め埋設してなり、
前記敷設した１段目の擁壁ユニット部材の上方には、２段目の擁壁ユニット部材を、前記２段目擁壁ユニット部材における擁壁形成部の切り欠き条部が前記１段目の擁壁ユニット部材における擁壁形成部上端面と対向する位置で、かつ厚み方向中間部に形成された前記切り欠き条部の壁面が前記１段目の擁壁ユニット部材における擁壁形成部背面側上端部より後方に位置するよう後ろにずらして配置し、２段目擁壁ユニット部材の背面側に前記擁壁ユニット部材の高さと略同等の高さに盛り土して第２段擁壁部を形成すると共に、前記第２段擁壁部の高さ方向略中間位置には前記２段目擁壁ユニット部材の背面より隙間をあけ、形成される擁壁部の大部分に敷き詰められる網状の補強アンカー部材を敷き詰め埋設し、
第３段擁壁部以降の擁壁部形成は順次前記第２段擁壁部の形成と同様に形成したことを特徴とし、
または、
略平板方形状をなし、表面部を有する擁壁形成部と、該擁壁形成部の背面から後方に向けて直交方向に張り出す棒状のアンカー部と、を備え、前記擁壁形成部の下端面には表面側から厚み方向中間部にかけて直方体状の切り欠き条部が長手方向に形成された擁壁ユニット部材を有してなり、
１段目に前記擁壁ユニット部材を敷設すると共に、該１段目擁壁ユニット部材の背面側に前記擁壁ユニット部材の高さと略同等の高さに盛り土して第１段擁壁部を形成すると共に、場合によっては前記第１擁壁部の高さ方向略中間位置に前記１段目擁壁ユニット部材の背面より隙間をあけ、形成される擁壁部の大部分に敷き詰められる網状の補強アンカー部材を敷き詰め埋設してなり、
前記敷設した１段目の擁壁ユニット部材の上方には、２段目の擁壁ユニット部材を、前記２段目擁壁ユニット部材における擁壁形成部の切り欠き条部が前記１段目の擁壁ユニット部材における擁壁形成部上端面と対向する位置で、かつ厚み方向中間部に形成された前記切り欠き条部の壁面が前記１段目の擁壁ユニット部材における擁壁形成部背面側上端部より後方に位置するよう後ろにずらして配置し、２段目擁壁ユニット部材の背面側に前記擁壁ユニット部材の高さと略同等の高さに盛り土して第２段擁壁部を形成すると共に、前記第２段擁壁部の高さ方向略中間位置には前記２段目擁壁ユニット部材の背面より隙間をあけ、形成される擁壁部の大部分に敷き詰められる網状の補強アンカー部材を敷き詰め埋設し、
第３段擁壁部以降の擁壁部形成は順次前記第２段擁壁部の形成と同様に形成したことを特徴とするものである。
【０００４】
【発明の実施の形態】
以下、図に基づいて本発明に係る擁壁及び擁壁の形成方法について説明する。
【０００５】
図において符号１は擁壁ユニット部材を示す。
【０００６】
該擁壁ユニット部材１は、通常平板状で横幅が広幅の略長方形状をなしており、表面部２に化粧部を有する擁壁形成部３と、該擁壁形成部３の背面から後方に向けて直交方向に張り出す棒状のアンカー部４とを備えて構成されている。
【０００７】
ここで、前記擁壁形成部３の表面部２は一般に例えば積み石ブロック等における装飾された化粧部を模倣して形成される。しかし、表面部２につき平坦部として構成しても構わない。
【０００８】
該表面部２の形成方法については何ら限定されるものではないが、一般には底型枠に前記例えば積み石ブロックの化粧部をあしらった模様を有する型枠を使用し、その底型枠の周囲を各側型枠で覆い、該型枠内にコンクリートを打設して形成される。すなわち、擁壁形成部３の形成と同時に化粧部も形成されるものとされている。
【０００９】
また、例えば積み石ブロックの化粧用表面部を薄く切り出し、それを底型枠内に収納し、後から充填するコンクリートに貼り付けて化粧部として形成しても構わない。
【００１０】
さらに前記棒状のアンカー部４も一般にコンクリート部材で形成されるがその形成については、前記擁壁形成部３と一体に形成しても構わないし、またアンカー部４につき別体にコンクリート部材で形成し、使用時に双方を連結して形成しても構わないものである。
【００１１】
しかして、平板状で横幅が広幅の略長方形状をなす擁壁形成部３と、その背面に後方に張り出す様形成されたアンカー部４とにより擁壁ユニット部材１は形成され、これらは型枠内にコンクリートを充填し、かつ所要時間経過後に脱型して製造することにより大量に形成することが出来る。
【００１２】
さらに、本発明による擁壁ユニット部材１における前記擁壁形成部３の下端面には化粧部が設けられている表面側から厚み方向中間部にかけて直方体状の切り欠き条部５が長手方向（横幅方向）に向かって形成されている。そして、この切り欠き条部５が本発明において非常に重要な役割を果たすものとなる。
しかして、本発明による擁壁の形成方法につき述べると、まず前記した擁壁ユニット部材１を擁壁を形成すべき箇所に立設、敷設して第１段擁壁部６を形成する。
【００１３】
すなわち、擁壁ユニット部材１を図１に示すようにして敷設した後、その背面側を前記擁壁ユニット部材１の高さと略同等の高さに盛り土して第１段擁壁部６を形成するのである。
【００１４】
この際、場合によっては前記第１擁壁部の高さ方向略中間位置に前記１段目擁壁ユニット部材の背面より隙間をあけ、形成される擁壁部の大部分に敷き詰められる網状の補強アンカー部材１６を敷き詰め埋設しても構わない。
【００１５】
次いで、前記敷設した１段目の擁壁ユニット部材１の上方に、２段目の擁壁ユニット部材１を、前記２段目擁壁ユニット部材１における擁壁形成部３の切り欠き条部５が前記１段目の擁壁ユニット部材１における擁壁形成部３上端面と対向する位置になるように配置する。
【００１６】
図１及び図３を参照して詳細にその配置位置を説明すると、２段目の擁壁ユニット部材１の下端面においてその２段目の擁壁ユニット部材１の化粧部が形成された表面側から前記２段目擁壁ユニット部材１の厚み方向中間部にかけて形成された前記切り欠き条部５の壁面７が前記１段目の擁壁ユニット部材１における擁壁形成部３背面側上端部８より後方に位置するように２段目の擁壁ユニット部材１を後にずらして配置するのである。
【００１７】
そして、２段目擁壁ユニット部材１の背面側に前記擁壁ユニット部材１の高さと略同等の高さに盛り土して第２段擁壁部９を形成する。
【００１８】
この際には、前記形成すべき第２擁壁部の高さ方向略中間位置に前記２段目擁壁ユニット部材１の背面より隙間をあけ、形成される第２段擁壁部９の大部分に敷き詰められるような網状の補強アンカー部材１６を敷き詰め埋設しておくものものとする。
次いで、敷設した２段目の擁壁ユニット部材１の上方に、３段目の擁壁ユニット部材１を、前記３段目擁壁ユニット部材１における擁壁形成部３の切り欠き条部５が前記２段目の擁壁ユニット部材１における擁壁形成部３上端面と対向する位置になるように配置する。
【００１９】
すなわち、３段目の擁壁ユニット部材１の下端面においてその３段目の擁壁ユニット部材１の化粧部が形成された表面側から前記２段目擁壁ユニット部材１の厚み方向中間部にかけて形成された前記切り欠き条部５の壁面７が前記２段目の擁壁ユニット部材１における擁壁形成部３背面側上端部８とより後方に位置するように３段目の擁壁ユニット部材１を後にずらして配置するのである。
【００２０】
そして、３段目擁壁ユニット部材１の背面側に前記擁壁ユニット部材１の高さと略同等の高さに盛り土して第３段擁壁部１０を形成する。
【００２１】
この際には、前記第３段擁壁部１０の高さ方向略中間位置に前記３段目擁壁ユニット部材１の背面より隙間をあけ、形成される第３段擁壁部１０の大部分に敷き詰められるような網状の補強アンカー部材１６を敷き詰め埋設しておくものものとする。
【００２２】
さらに、第４段擁壁部１１、第５段擁壁部１２、第６段擁壁部１３、第７段擁壁部１４及び第８段擁壁部１５の擁壁部形成についても順次前記第２段擁壁部９の形成と同様に形成するものとする。
【００２３】
この様に形成された擁壁は長年の年月が経過しても、積み上げて敷設した擁壁ユニット部材１がずれたりあるいは積み上げられた状態から外れたりすることがない。
【００２４】
すなわち、各擁壁部を構成する盛り土部内に網状の補強アンカー部材１６が敷き詰められ埋設されているため、各擁壁部が前記補強アンカー部材１６にかかる上下方向からの抵抗力で一体化され、もって各擁壁部の沈下速度をも遅らせることが出来る。
【００２５】
また、たとえ各擁壁部が沈下したとしても、積み上げられた各擁壁ユニット部材１は上下方向に各々の端面を接触させて積み上げ敷設されてはおらず、擁壁ユニット部材１の切り欠き条部６の高さ分だけ離して積み上げ敷設されている。
【００２６】
よって、前記切り欠き条部６の高さ分だけ各擁壁ユニット部材１の接触によるずれあるいは外れが容認され、敷設された擁壁ユニット部材１が崩れるおそれがないのである。
【００２７】
さらに前記補強アンカー部材１６は擁壁ユニット部材１の背面に連結されてはいない。よって、たとえ盛り土部の沈下があっても前記敷設された擁壁ユニット部材１の背面において補強アンカー部材１６と連結部が破壊するとの事態を招来することがない。
【００２８】
【発明の効果】
かくして本発明は以上の構成よりなる。
【００２９】
そして、本発明による擁壁及び擁壁の形成方法であれば、擁壁の構築に際し、長年の使用によって、たとえ擁壁ユニット部材背面の盛り土部が沈下したとしても、擁壁ユニット部材部がそれに引っ張られてずれてはみ出したり、外れたりすることのないとの優れた効果を奏する。
【図面の簡単な説明】
【図１】本発明による擁壁の構成を説明する説明図である。
【図２】本発明による擁壁の構成を説明する正面図である。
【図３】本発明による擁壁の構成を拡大して説明する説明図である。
【図４】本発明による擁壁の構成を背面側より説明する説明図である。
【図５】従来の擁壁の構成を説明する説明図（その１）である。
【図６】従来の擁壁の構成を説明する説明図（その２）である。
【図７】従来の擁壁の構成を説明する説明図（その３）である。
【符号の説明】
１ 擁壁ユニット部材
２ 表面部
３ 擁壁形成部
４ アンカー部
５ 切り欠き条部
６ 第１段擁壁部
７ 切り欠き条部の壁面
８ 擁壁ユニット部材の背面側上端部
９ 第２段擁壁部
１０ 第３段擁壁部
１１ 第４段擁壁部
１２ 第５段擁壁部
１３ 第６段擁壁部
１４ 第７段擁壁部
１５ 第８段擁壁部
１６ 補強アンカー部材
２０ 擁壁ユニット部材
２１ アンカー部[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a retaining wall and a retaining wall forming method capable of forming a retaining wall having a steep slope while maintaining sufficient durability when, for example, a retaining wall having a steep slope is constructed. It is.
[Prior art]
Conventionally, in order to assemble the retaining wall unit member 20 made of, for example, a concrete product and construct a steep retaining wall, the retaining wall unit member 20 is overlapped in the vertical direction as understood from FIGS. 5 and 6. The retaining wall unit was formed by stacking and attaching the long reinforcing anchor member 21 directly to the back surface of the retaining wall unit member 20 and then embedding it on the back surface of each retaining wall unit member 20. (For example, refer to Patent Document 1).
[0002]
[Patent Document 1]
JP-A-9-177103 (FIGS. 1 and 2)
[Problems to be solved by the invention]
However, in the case of the conventional retaining wall, a portion of the embankment may sink due to long-term use, and as a result, the reinforcing anchor member 21 also sinks due to the sinking of the embankment, and thus the retaining wall unit. The retaining wall formed by stacking the members 20 is dragged by the reinforcing anchor member 21, and the retaining wall unit member 20 that has sunk may be displaced or dislodged to break the retaining wall. .
[0003]
Thus, the present invention was devised to address the above-described conventional problems, and even when the embedding portion of the rear surface of the retaining wall unit member sinks due to many years of use in the construction of the retaining wall, the retaining wall unit The member part is not pulled out by being pulled to it, and the retaining wall unit member is not destroyed, and the retaining wall unit member constituting the retaining wall is also firmly fixed so that the retaining wall It is an object of the present invention to provide a retaining wall and a method for forming the retaining wall that do not deviate from the front side or the rear side.
[Means for Solving the Problems]
The retaining wall and the method of forming the retaining wall according to the present invention include:
A retaining wall forming portion having a substantially flat plate shape and having a surface portion; and a rod-shaped anchor portion projecting from the back surface of the retaining wall forming portion in the orthogonal direction to the rear, and below the retaining wall forming portion The end face has a retaining wall unit member in which a rectangular parallelepiped cutout is formed in the longitudinal direction from the surface side to the intermediate portion in the thickness direction,
The retaining wall unit member is laid on the first stage, and a first stage retaining wall part is formed on the back side of the first stage retaining wall unit member to a height substantially equal to the height of the retaining wall unit member. In some cases, a reinforcing anchor member having a net shape with a gap from the back surface of the first-stage retaining wall unit member is laid and buried at a substantially intermediate position in the height direction of the first retaining wall portion.
Above the laid first-stage retaining wall unit member, a second-stage retaining wall unit member is disposed, and a notch portion of the retaining wall forming portion in the second-stage retaining wall unit member is disposed on the first-stage retaining wall unit member. The wall surface of the notched strip portion formed at the intermediate portion in the thickness direction at a position facing the upper end surface of the retaining wall forming portion in the retaining wall unit member is the rear surface side of the retaining wall forming portion in the first-stage retaining wall unit member The second stage retaining wall part is formed by shifting to the rear side so as to be positioned rearward from the upper end part, and embedding at a height substantially equal to the height of the retaining wall unit member on the back side of the second stage retaining wall unit member. In addition, a reinforcing anchor member having a net shape with a gap from the back surface of the second-stage retaining wall unit member is laid and buried at a substantially intermediate position in the height direction of the second-stage retaining wall part,
The retaining wall part formation after the third stage retaining wall part is formed in the same manner as the formation of the second stage retaining wall part,
Or
The reinforcing anchor member is laid and buried in all the retaining wall portions of each step, and there is a retaining wall portion where the reinforcing anchor member is not laid and buried,
Or
A retaining wall forming portion having a substantially flat plate shape and having a surface portion; and a rod-shaped anchor portion projecting from the back surface of the retaining wall forming portion in the orthogonal direction to the rear, and below the retaining wall forming portion The end face has a retaining wall unit member in which a rectangular parallelepiped cutout is formed in the longitudinal direction from the surface side to the intermediate portion in the thickness direction,
The retaining wall unit member is laid on the first stage, and a first stage retaining wall part is formed on the back side of the first stage retaining wall unit member to a height substantially equal to the height of the retaining wall unit member. Further, in some cases, a net-like reinforcing anchor that is spread over most of the formed retaining wall portion with a clearance from the back surface of the first-stage retaining wall unit member at a substantially intermediate position in the height direction of the first retaining wall portion. The material is spread and buried,
Above the laid first-stage retaining wall unit member, a second-stage retaining wall unit member is disposed, and a notch portion of the retaining wall forming portion in the second-stage retaining wall unit member is disposed on the first-stage retaining wall unit member. The wall surface of the notched strip portion formed at the intermediate portion in the thickness direction at a position facing the upper end surface of the retaining wall forming portion in the retaining wall unit member is the rear surface side of the retaining wall forming portion in the first-stage retaining wall unit member The second stage retaining wall part is formed by shifting to the rear side so as to be positioned rearward from the upper end part, and embedding at a height substantially equal to the height of the retaining wall unit member on the back side of the second stage retaining wall unit member. In addition, a net-like reinforcing anchor member is laid in a substantially intermediate position in the height direction of the second-stage retaining wall portion with a gap from the back surface of the second-stage retaining wall unit member and laid on most of the formed retaining wall portion. Buried,
The retaining wall part formation after the third stage retaining wall part is formed in the same manner as the formation of the second stage retaining wall part,
Or
A retaining wall forming portion having a substantially flat plate shape and having a surface portion; and a rod-shaped anchor portion projecting from the back surface of the retaining wall forming portion in the orthogonal direction to the rear, and below the retaining wall forming portion The end face has a retaining wall unit member in which a rectangular parallelepiped cutout is formed in the longitudinal direction from the surface side to the intermediate portion in the thickness direction,
The retaining wall unit member is laid on the first stage, and the first stage retaining wall part is formed on the back side of the first stage retaining wall unit member to a height substantially equal to the height of the retaining wall unit member. Further, in some cases, a net-like reinforcing anchor that is spread over most of the formed retaining wall portion with a clearance from the back surface of the first-stage retaining wall unit member at a substantially intermediate position in the height direction of the first retaining wall portion. The material is spread and buried,
Above the laid first-stage retaining wall unit member, a second-stage retaining wall unit member is disposed, and a notch portion of the retaining wall forming portion in the second-stage retaining wall unit member is disposed on the first-stage retaining wall unit member. The wall surface of the notched strip portion formed at the intermediate portion in the thickness direction at a position facing the upper end surface of the retaining wall forming portion in the retaining wall unit member is the rear surface side of the retaining wall forming portion in the first-stage retaining wall unit member The second stage retaining wall part is formed by shifting to the rear side so as to be positioned rearward from the upper end part, and embedding at a height substantially equal to the height of the retaining wall unit member on the back side of the second stage retaining wall unit member. In addition, a net-like reinforcing anchor member is laid in a substantially intermediate position in the height direction of the second-stage retaining wall portion with a gap from the back surface of the second-stage retaining wall unit member and laid on most of the formed retaining wall portion. Buried,
The formation of the retaining wall part after the third stage retaining wall part is characterized in that it is formed in the same manner as the formation of the second stage retaining wall part.
[0004]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the retaining wall and the method for forming the retaining wall according to the present invention will be described with reference to the drawings.
[0005]
In the figure, reference numeral 1 denotes a retaining wall unit member.
[0006]
The retaining wall unit member 1 is generally flat and has a substantially rectangular shape with a wide width, a retaining wall forming portion 3 having a decorative portion on the surface portion 2, and a rear side of the retaining wall forming portion 3 from the rear. And a rod-shaped anchor portion 4 projecting in an orthogonal direction.
[0007]
Here, the surface portion 2 of the retaining wall forming portion 3 is generally formed by imitating a decorated decorative portion in, for example, a stone block. However, the surface portion 2 may be configured as a flat portion.
[0008]
The method for forming the surface portion 2 is not limited in any way, but generally, a mold having a pattern with the decorative part of, for example, a building block is used for the bottom mold, and the periphery of the bottom mold Are covered with each side formwork, and concrete is placed in the formwork. That is, the decorative part is formed simultaneously with the formation of the retaining wall forming part 3.
[0009]
Further, for example, the decorative surface portion of the stone block may be cut out thinly, accommodated in the bottom mold, and pasted on the concrete to be filled later to form the decorative portion.
[0010]
Further, the rod-shaped anchor portion 4 is also generally formed of a concrete member. However, the rod-shaped anchor portion 4 may be formed integrally with the retaining wall forming portion 3, or may be formed separately from the anchor portion 4 with a concrete member. These may be formed by connecting both at the time of use.
[0011]
Thus, the retaining wall unit member 1 is formed by the retaining wall forming portion 3 having a substantially rectangular shape with a flat width and a wide width, and the anchor portion 4 formed so as to project rearward on the back surface thereof. It can be formed in large quantities by filling the frame with concrete and removing the mold after the required time has elapsed.
[0012]
Furthermore, a rectangular parallelepiped notch strip 5 extends in the longitudinal direction (lateral width) from the surface side where the decorative portion is provided to the intermediate portion in the thickness direction on the lower end surface of the retaining wall forming portion 3 in the retaining wall unit member 1 according to the present invention. Direction). And this notch strip part 5 plays a very important role in the present invention.
Thus, the retaining wall forming method according to the present invention will be described. First, the retaining wall unit member 1 described above is erected and laid at a position where the retaining wall is to be formed, thereby forming the first stage retaining wall portion 6.
[0013]
That is, after the retaining wall unit member 1 is laid as shown in FIG. 1, the first step retaining wall portion 6 is formed by embedding the back side of the retaining wall unit member 1 at a height substantially equal to the height of the retaining wall unit member 1. is there.
[0014]
At this time, in some cases, a net-like reinforcement is formed in a substantially intermediate position in the height direction of the first retaining wall portion with a gap from the back surface of the first-stage retaining wall unit member and spread over most of the formed retaining wall portion. The anchor member 16 may be laid and buried.
[0015]
Next, the second-stage retaining wall unit member 1 is disposed above the laid first-stage retaining wall unit member 1, and the notch portion 5 of the retaining wall forming portion 3 in the second-stage retaining wall unit member 1 is disposed. Is arranged so as to face the upper end surface of the retaining wall forming portion 3 in the first-stage retaining wall unit member 1.
[0016]
The arrangement position will be described in detail with reference to FIGS. 1 and 3. The surface side on which the decorative portion of the second-stage retaining wall unit member 1 is formed on the lower end surface of the second-stage retaining wall unit member 1. The wall surface 7 of the notch 5 formed from the intermediate portion in the thickness direction of the second-stage retaining wall unit member 1 to the rear wall side upper portion 8 of the retaining wall forming portion 3 in the first-stage retaining wall unit member 1. The second-stage retaining wall unit member 1 is arranged so as to be shifted rearward so as to be positioned further rearward.
[0017]
Then, the second-stage retaining wall portion 9 is formed on the back side of the second-stage retaining wall unit member 1 by embedding to a height substantially equal to the height of the retaining wall unit member 1.
[0018]
At this time, a gap is formed from the back surface of the second stage retaining wall unit member 1 at a substantially intermediate position in the height direction of the second retaining wall part to be formed, and a large part of the second stage retaining wall part 9 is formed. It is assumed that a net-like reinforcing anchor member 16 that can be laid is laid and buried.
Next, the third-stage retaining wall unit member 1 is disposed above the laid second-stage retaining wall unit member 1, and the notch portion 5 of the retaining wall forming portion 3 in the third-stage retaining wall unit member 1 is provided. It arrange | positions so that it may become a position facing the retaining wall formation part 3 upper end surface in the said 2nd stage retaining wall unit member 1. FIG.
[0019]
That is, from the surface side where the decorative part of the third-stage retaining wall unit member 1 is formed on the lower end surface of the third-stage retaining wall unit member 1 to the intermediate portion in the thickness direction of the second-stage retaining wall unit member 1. The third-stage retaining wall unit member is so that the wall surface 7 of the formed notched strip 5 is positioned more rearward than the retaining wall forming part 3 rear side upper end 8 in the second-stage retaining wall unit member 1. 1 is shifted later.
[0020]
Then, a third-stage retaining wall portion 10 is formed on the back side of the third-stage retaining wall unit member 1 by embedding to a height substantially equal to the height of the retaining wall unit member 1.
[0021]
At this time, a gap is formed from the back surface of the third-stage retaining wall unit member 1 at a substantially intermediate position in the height direction of the third-stage retaining wall section 10 so that most of the formed third-stage retaining wall section 10 is spread. A net-like reinforcing anchor member 16 is spread and buried.
[0022]
Further, the formation of the retaining wall portions of the fourth step retaining wall portion 11, the fifth step retaining wall portion 12, the sixth step retaining wall portion 13, the seventh step retaining wall portion 14, and the eighth step retaining wall portion 15 is sequentially performed in the same manner as the formation of the second step retaining wall portion 9. Shall be formed.
[0023]
Even if the retaining wall formed in this way passes through many years, the retaining wall unit member 1 piled up and laid does not shift or deviate from the stacked state.
[0024]
That is, because the mesh-shaped reinforcing anchor member 16 is laid and embedded in the embankment portion that constitutes each retaining wall portion, each retaining wall portion is integrated with the resistance force from above and below the reinforcing anchor member 16, Therefore, the settlement speed of each retaining wall can be delayed.
[0025]
Moreover, even if each retaining wall part sinks, each stacked retaining wall unit member 1 is not laid and stacked with its respective end surfaces contacting each other in the vertical direction. Stacked and laid apart by a height of 6.
[0026]
Therefore, displacement or detachment due to the contact of each retaining wall unit member 1 is allowed by the height of the notch strip portion 6, and there is no possibility that the laid retaining wall unit member 1 will collapse.
[0027]
Further, the reinforcing anchor member 16 is not connected to the back surface of the retaining wall unit member 1. Therefore, even if there is a settlement of the embankment portion, a situation in which the reinforcing anchor member 16 and the connecting portion are broken on the back surface of the laid retaining wall unit member 1 does not occur.
[0028]
【The invention's effect】
Thus, the present invention has the above configuration.
[0029]
And, if the retaining wall and the method for forming the retaining wall according to the present invention are used, even if the embankment part on the back of the retaining wall unit member sinks due to the use for many years, It has an excellent effect that it is not pulled out and does not protrude or come off.
[Brief description of the drawings]
FIG. 1 is an explanatory view illustrating a configuration of a retaining wall according to the present invention.
FIG. 2 is a front view illustrating the configuration of a retaining wall according to the present invention.
FIG. 3 is an explanatory diagram illustrating an enlarged configuration of a retaining wall according to the present invention.
FIG. 4 is an explanatory diagram for explaining the structure of a retaining wall according to the present invention from the back side.
FIG. 5 is an explanatory view (No. 1) for explaining the configuration of a conventional retaining wall.
FIG. 6 is an explanatory diagram (part 2) for explaining the configuration of a conventional retaining wall.
FIG. 7 is an explanatory diagram (part 3) for explaining the configuration of a conventional retaining wall;
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Retaining wall unit member 2 Surface part 3 Retaining wall formation part 4 Anchor part 5 Notch strip part 6 First step retaining wall part 7 Wall surface 8 of notch strip part Back side upper end part 9 Retaining wall unit member Second stage retaining wall part 10 3rd stage retaining wall part 11 4th stage retaining wall part 12 5th stage retaining wall part 13 6th stage retaining wall part 14 7th stage retaining wall part 15 8th stage retaining wall part 16 Reinforcement anchor member 20 Retaining wall unit member 21 Anchor part

Claims (4)

略平板方形状をなし、表面部を有する擁壁形成部と、該擁壁形成部の背面から後方に向けて直交方向に張り出す棒状のアンカー部と、を備え、前記擁壁形成部の下端面には表面側から厚み方向中間部にかけて直方体状の切り欠き条部が長手方向に形成された擁壁ユニット部材を有してなり、
１段目に前記擁壁ユニット部材を敷設し、該１段目擁壁ユニット部材の背面側には前記擁壁ユニット部材の高さと略同等の高さに盛り土して第１段擁壁部を形成すると共に、場合によっては前記第１擁壁部の高さ方向略中間位置に前記１段目擁壁ユニット部材の背面より隙間をあけて網状をなす補強アンカー部材を敷き詰めて埋設してなり、
前記敷設した１段目の擁壁ユニット部材の上方には、２段目の擁壁ユニット部材を、前記２段目擁壁ユニット部材における擁壁形成部の切り欠き条部が前記１段目の擁壁ユニット部材における擁壁形成部上端面と対向する位置で、かつ厚み方向中間部に形成された前記切り欠き条部の壁面が前記１段目の擁壁ユニット部材における擁壁形成部背面側上端部より後方に位置するよう後ろにずらして配置し、２段目擁壁ユニット部材の背面側に前記擁壁ユニット部材の高さと略同等の高さに盛り土して第２段擁壁部を形成すると共に、前記第２段擁壁部の高さ方向略中間位置には前記２段目擁壁ユニット部材の背面より隙間をあけて網状をなす補強アンカー部材を敷き詰めて埋設し、
第３段擁壁部以降の擁壁部形成は順次前記第２段擁壁部の形成と同様に形成したことを特徴とする擁壁。A retaining wall forming portion having a substantially flat plate shape and having a surface portion; and a rod-shaped anchor portion projecting from the back surface of the retaining wall forming portion in the orthogonal direction to the rear, and below the retaining wall forming portion The end face has a retaining wall unit member in which a rectangular parallelepiped cutout is formed in the longitudinal direction from the surface side to the intermediate portion in the thickness direction,
The retaining wall unit member is laid on the first stage, and a first stage retaining wall part is formed on the back side of the first stage retaining wall unit member to a height substantially equal to the height of the retaining wall unit member. In some cases, a reinforcing anchor member having a net shape with a gap from the back surface of the first-stage retaining wall unit member is laid and buried at a substantially intermediate position in the height direction of the first retaining wall portion.
Above the laid first-stage retaining wall unit member, a second-stage retaining wall unit member is disposed, and a notch portion of the retaining wall forming portion in the second-stage retaining wall unit member is disposed on the first-stage retaining wall unit member. The wall surface of the notched strip portion formed at the intermediate portion in the thickness direction at a position facing the upper end surface of the retaining wall forming portion in the retaining wall unit member is the rear surface side of the retaining wall forming portion in the first-stage retaining wall unit member The second stage retaining wall part is formed by shifting to the rear side so as to be positioned rearward from the upper end part, and embedding at a height substantially equal to the height of the retaining wall unit member on the back side of the second stage retaining wall unit member. In addition, a reinforcing anchor member having a net shape with a gap from the back surface of the second-stage retaining wall unit member is laid and buried at a substantially intermediate position in the height direction of the second-stage retaining wall part,
Retaining wall formation after the 3rd stage retaining wall part was formed sequentially like formation of the 2nd stage retaining wall part. 前記補強アンカー部材の敷き詰め埋設は各段の擁壁部すべてに行われず、前記補強アンカー部材が敷き詰め埋設されていない擁壁部が存在することを特徴とする請求項１記載の擁壁。2. The retaining wall according to claim 1, wherein the reinforcing anchor member is laid and buried not in all the retaining wall portions of each step, and there is a retaining wall portion where the reinforcing anchor member is not laid and buried. 略平板方形状をなし、表面部を有する擁壁形成部と、該擁壁形成部の背面から後方に向けて直交方向に張り出す棒状のアンカー部と、を備え、前記擁壁形成部の下端面には表面側から厚み方向中間部にかけて直方体状の切り欠き条部が長手方向に形成された擁壁ユニット部材を有してなり、
１段目に前記擁壁ユニット部材を敷設し、該１段目擁壁ユニット部材の背面側には前記擁壁ユニット部材の高さと略同等の高さに盛り土して第１段擁壁部を形成すると共に、場合によっては前記第１擁壁部の高さ方向略中間位置に前記１段目擁壁ユニット部材の背面より隙間をあけ、形成される擁壁部の大部分に敷き詰められる網状の補強アンカー部材を敷き詰め埋設してなり、
前記敷設した１段目の擁壁ユニット部材の上方には、２段目の擁壁ユニット部材を、前記２段目擁壁ユニット部材における擁壁形成部の切り欠き条部が前記１段目の擁壁ユニット部材における擁壁形成部上端面と対向する位置で、かつ厚み方向中間部に形成された前記切り欠き条部の壁面が前記１段目の擁壁ユニット部材における擁壁形成部背面側上端部より後方に位置するよう後ろにずらして配置し、２段目擁壁ユニット部材の背面側に前記擁壁ユニット部材の高さと略同等の高さに盛り土して第２段擁壁部を形成すると共に、前記第２段擁壁部の高さ方向略中間位置には前記２段目擁壁ユニット部材の背面より隙間をあけ、形成される擁壁部の大部分に敷き詰められる網状の補強アンカー部材を敷き詰め埋設し、
第３段擁壁部以降の擁壁部形成は順次前記第２段擁壁部の形成と同様に形成したことを特徴とする擁壁。A retaining wall forming portion having a substantially flat plate shape and having a surface portion; and a rod-shaped anchor portion projecting from the back surface of the retaining wall forming portion in the orthogonal direction to the rear, and below the retaining wall forming portion The end face has a retaining wall unit member in which a rectangular parallelepiped cutout is formed in the longitudinal direction from the surface side to the intermediate portion in the thickness direction,
The retaining wall unit member is laid on the first stage, and a first stage retaining wall part is formed on the back side of the first stage retaining wall unit member to a height substantially equal to the height of the retaining wall unit member. Further, in some cases, a net-like reinforcing anchor that is spread over most of the formed retaining wall portion with a clearance from the back surface of the first-stage retaining wall unit member at a substantially intermediate position in the height direction of the first retaining wall portion. The material is spread and buried,
Above the laid first-stage retaining wall unit member, a second-stage retaining wall unit member is disposed, and a notch portion of the retaining wall forming portion in the second-stage retaining wall unit member is disposed on the first-stage retaining wall unit member. The wall surface of the notched strip portion formed at the intermediate portion in the thickness direction at a position facing the upper end surface of the retaining wall forming portion in the retaining wall unit member is the rear surface side of the retaining wall forming portion in the first-stage retaining wall unit member The second stage retaining wall part is formed by shifting to the rear side so as to be positioned rearward from the upper end part, and embedding at a height substantially equal to the height of the retaining wall unit member on the back side of the second stage retaining wall unit member. In addition, a net-like reinforcing anchor member is laid in a substantially intermediate position in the height direction of the second-stage retaining wall portion with a gap from the back surface of the second-stage retaining wall unit member and laid on most of the formed retaining wall portion. Buried,
Retaining wall formation after the 3rd stage retaining wall part was formed sequentially like formation of the 2nd stage retaining wall part. 略平板方形状をなし、表面部を有する擁壁形成部と、該擁壁形成部の背面から後方に向けて直交方向に張り出す棒状のアンカー部と、を備え、前記擁壁形成部の下端面には表面側から厚み方向中間部にかけて直方体状の切り欠き条部が長手方向に形成された擁壁ユニット部材を有してなり、
１段目に前記擁壁ユニット部材を敷設すると共に、該１段目擁壁ユニット部材の背面側に前記擁壁ユニット部材の高さと略同等の高さに盛り土して第１段擁壁部を形成すると共に、場合によっては前記第１擁壁部の高さ方向略中間位置に前記１段目擁壁ユニット部材の背面より隙間をあけ、形成される擁壁部の大部分に敷き詰められる網状の補強アンカー部材を敷き詰め埋設してなり、
前記敷設した１段目の擁壁ユニット部材の上方には、２段目の擁壁ユニット部材を、前記２段目擁壁ユニット部材における擁壁形成部の切り欠き条部が前記１段目の擁壁ユニット部材における擁壁形成部上端面と対向する位置で、かつ厚み方向中間部に形成された前記切り欠き条部の壁面が前記１段目の擁壁ユニット部材における擁壁形成部背面側上端部より後方に位置するよう後ろにずらして配置し、２段目擁壁ユニット部材の背面側に前記擁壁ユニット部材の高さと略同等の高さに盛り土して第２段擁壁部を形成すると共に、前記第２段擁壁部の高さ方向略中間位置には前記２段目擁壁ユニット部材の背面より隙間をあけ、形成される擁壁部の大部分に敷き詰められる網状の補強アンカー部材を敷き詰め埋設し、
第３段擁壁部以降の擁壁部形成は順次前記第２段擁壁部の形成と同様に形成したことを特徴とする擁壁の形成方法。A retaining wall forming portion having a substantially flat plate shape and having a surface portion; and a rod-shaped anchor portion projecting from the back surface of the retaining wall forming portion in the orthogonal direction to the rear, and below the retaining wall forming portion The end face has a retaining wall unit member in which a rectangular parallelepiped cutout is formed in the longitudinal direction from the surface side to the intermediate portion in the thickness direction,
The retaining wall unit member is laid on the first stage, and the first stage retaining wall part is formed on the back side of the first stage retaining wall unit member to a height substantially equal to the height of the retaining wall unit member. Further, in some cases, a net-like reinforcing anchor that is spread over most of the formed retaining wall portion with a clearance from the back surface of the first-stage retaining wall unit member at a substantially intermediate position in the height direction of the first retaining wall portion. The material is spread and buried,
Above the laid first-stage retaining wall unit member, a second-stage retaining wall unit member is disposed, and a notch portion of the retaining wall forming portion in the second-stage retaining wall unit member is disposed on the first-stage retaining wall unit member. The wall surface of the notched strip portion formed at the intermediate portion in the thickness direction at a position facing the upper end surface of the retaining wall forming portion in the retaining wall unit member is the rear surface side of the retaining wall forming portion in the first-stage retaining wall unit member The second stage retaining wall part is formed by shifting to the rear side so as to be positioned rearward from the upper end part, and embedding at a height substantially equal to the height of the retaining wall unit member on the back side of the second stage retaining wall unit member. In addition, a net-like reinforcing anchor member is laid in a substantially intermediate position in the height direction of the second-stage retaining wall portion with a gap from the back surface of the second-stage retaining wall unit member and laid on most of the formed retaining wall portion. Buried,
Retaining wall formation after the third step retaining wall is formed in the same manner as the formation of the second step retaining wall.
JP2002326403A 2002-11-11 2002-11-11 Retaining wall and method of forming retaining wall Expired - Fee Related JP3961404B2 (en)

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