JP2008308844A - Reinforced soil wall structure - Google Patents

Reinforced soil wall structure Download PDF

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JP2008308844A
JP2008308844A JP2007156211A JP2007156211A JP2008308844A JP 2008308844 A JP2008308844 A JP 2008308844A JP 2007156211 A JP2007156211 A JP 2007156211A JP 2007156211 A JP2007156211 A JP 2007156211A JP 2008308844 A JP2008308844 A JP 2008308844A
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wall
surface material
wall surface
anchor plate
end side
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Kiyoshi Misawa
清志 三澤
Gakuji Konami
岳治 小浪
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Okasan Livic Co Ltd
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Okasan Livic Co Ltd
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  • Retaining Walls (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a reinforced soil wall structure which can firmly restrain fill, which enables the construction of a solid reinforced soil wall, which can reduce earth pressure acting on a wall surface material, and which enhances the stability of a retaining wall by suppressing the displacement of a wall surface material. <P>SOLUTION: The reinforced soil wall is constructed through the following steps: the one-end side of a tension-resisting member is connected to the backside of the wall surface material which forms the retaining wall; the other-end side of the tension-resisting member is extended in the direction of separation from the wall surface material; a front-side anchor plate is connected to the vicinity of the side of one end, adjacent to the wall surface material, of the tension-resisting member; a rear-side anchor plate is connected to the other-end side separated from the wall surface material; and the fill is charged and subjected to rolling on the backside of the wall surface material, so that the tension-resisting member and the front-side and rear-side anchor plates can be embedded. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

この発明は補強土壁構造に係り、特に、堅固な補強土壁の構築を可能とし、また、擁壁の安定性を向上した補強土壁構造に関する。   The present invention relates to a reinforced earth wall structure, and more particularly to a reinforced earth wall structure that enables the construction of a rigid reinforced earth wall and that improves the stability of a retaining wall.

盛土を使用した壁面材による補強土壁構造には、擁壁を形成する壁面材として枠材や土嚢を使用し、この壁面材を水平方向及び上下方向に複数並べて設置し、各壁面材の背面に抗張部材の一端側を連結し、この抗張部材の他端側を壁面材から離間する方向に展張してアンカープレートを連結し、壁面材の背面側に盛土を投入転圧して抗張部材とアンカープレートとを埋設することで補強土壁を構築するものがある。
特開２００１−５５７４６号公報 In the reinforced earth wall structure with wall material using embankment, frame materials and sandbags are used as the wall material to form the retaining wall, and multiple wall materials are installed side by side in the horizontal and vertical directions, and the back of each wall material One end side of the tensile member is connected to the other end, the other end side of the tensile member is extended in a direction away from the wall surface material, the anchor plate is connected, and embankment is inserted into the back side of the wall surface material to roll and compress the tensile strength. Some reinforced earth walls are constructed by embedding members and anchor plates.
JP 2001-55746 A

ところで、従来の補強土壁構造においては、各壁面材から離間する方向に展張した抗張部材の他端側にアンカープレートが上下に並んで配設され、この上下に並ぶアンカープレートの部位に擬似的な補強土壁部分が発現し、この擬似的な補強土壁部分と擁壁を形成する壁面材との間に盛土を拘束している。   By the way, in the conventional reinforced earth wall structure, the anchor plate is arranged vertically on the other end side of the tensile member extended in the direction away from each wall material, and the anchor plate is lined up in the vertical direction. A reinforced soil wall portion appears, and the embankment is constrained between the pseudo reinforced soil wall portion and the wall material forming the retaining wall.

ところが、この補強土壁構造においては、盛土に埋設された抗張部材の他端側のアンカープレートの部位にだけしか擬似的な補強土壁部分を発現することができないため、盛土を十分に拘束できず、堅固な補強土壁を構築することが困難な問題がある。   However, in this reinforced earth wall structure, the reinforced earth wall portion can be expressed only at the anchor plate part on the other end side of the tensile member embedded in the earth, so that the embankment is sufficiently restrained. There is a problem that it is difficult to construct a solid reinforced earth wall.

また、従来の補強土壁構造においては、投入された盛土の土圧を壁面材の背面で支持していることから、壁面材とアンカープレートとの間の盛土の土圧が壁面材の背面に直接的に作用することになり、壁面材が変位して擁壁の安定性が低下するという問題があった。   Moreover, in the conventional reinforced earth wall structure, since the earth pressure of the filled embankment is supported by the back surface of the wall material, the earth pressure of the embankment between the wall material and the anchor plate is applied to the back surface of the wall material. There is a problem that the wall material is displaced and the stability of the retaining wall is lowered.

そこで、この発明は、盛土を強固に拘束して堅固な補強土壁の構築を可能とし、また、壁面材の背面に作用する土圧を軽減し、壁面材の変位を抑制して擁壁の安定性を向上した補強土壁構造を提供することを目的とする。   Therefore, the present invention makes it possible to construct a solid reinforced earth wall by firmly restraining the embankment, reduce earth pressure acting on the back surface of the wall surface material, and suppress the displacement of the wall surface material. It aims at providing the reinforced earth wall structure which improved stability.

この発明は、擁壁を形成する壁面材の背面に抗張部材の一端側を連結し、この抗張部材の他端側を前記壁面材から離間する方向に展張し、前記抗張部材には前記壁面材に近接する一端側近傍に前側アンカープレートを連結するとともに前記壁面材から離間する他端側に後側アンカープレートを連結し、前記壁面材の背面側に盛土を投入転圧して前記抗張部材と前記前側アンカープレート及び後側アンカープレートとを埋設することで補強土壁を構築することを特徴とする。   In this invention, one end side of the tensile member is connected to the back surface of the wall surface material forming the retaining wall, and the other end side of the tensile member is expanded in a direction away from the wall surface material. A front anchor plate is connected in the vicinity of one end side close to the wall surface material, a rear anchor plate is connected to the other end side separated from the wall surface material, and embankment is thrown into the back side of the wall surface material to roll and compress the resistance. A reinforcing earth wall is constructed by embedding a tension member, the front anchor plate, and the rear anchor plate.

この発明の補強土壁構造は、抗張部材の壁面材に近接する一端側近傍の前側アンカープレートの部位に発現する擬似的な前側補強土壁部分と、抗張部材の壁面材から離間する他端側の後側アンカープレートの部位に発現する擬似的な後側補強土壁部分とによって、盛土を強固に拘束することができ、堅固な補強土壁を構築することができる。
また、この発明の補強土壁構造は、盛土に埋設された抗張部材の壁面材に近接する一端側近傍の前側アンカープレートの部位に発現する擬似的な前側補強土壁部分によって、壁面材に作用する土圧の一部を支持することができ、壁面材に作用する土圧を軽減することができ、壁面材の変位を抑制して擁壁の安定性を向上することができる。 The reinforced earth wall structure of the present invention includes a pseudo front reinforced earth wall portion that appears in a portion of the front anchor plate in the vicinity of one end side that is close to the wall surface material of the tensile member, and is separated from the wall surface material of the tensile member. The embankment can be firmly constrained by the pseudo rear reinforcing earth wall portion that appears at the end of the rear anchor plate, and a firm reinforcing earth wall can be constructed.
In addition, the reinforced earth wall structure of the present invention is formed on the wall surface material by a pseudo front side reinforcing earth wall portion that appears in a portion of the front anchor plate near one end side close to the wall surface material of the tensile member embedded in the embankment. A part of the earth pressure acting can be supported, the earth pressure acting on the wall surface material can be reduced, and the displacement of the wall surface material can be suppressed to improve the stability of the retaining wall.

以下、図面に基づいてこの発明の実施例を詳細且つ具体的に説明する。   Hereinafter, embodiments of the present invention will be described in detail and specifically with reference to the drawings.

図１〜図２は、この発明の実施例を示すものである。図２において、２は地盤、４は基礎、６は補強土壁である。補強土壁６は、整地した地盤２に基礎４を設置し、この基礎４上に最下層の壁面材８を水平方向に並べて設置し、この水平方向に載置した壁面材８上に次層の壁部材８を水平方向に並べて設置し、これら各層の壁部材８を上方に順次に重積することでによって、壁面材８を水平方向及び上下方向に複数並べて擁壁１０を形成する。   1 to 2 show an embodiment of the present invention. In FIG. 2, 2 is the ground, 4 is a foundation, and 6 is a reinforced earth wall. The reinforced earth wall 6 has a foundation 4 placed on the ground 2 that has been leveled, and the bottom wall material 8 is placed side by side in the horizontal direction on the foundation 4, and the next layer is placed on the wall material 8 placed in the horizontal direction. The wall members 8 are arranged side by side in the horizontal direction, and the wall members 8 of the respective layers are sequentially stacked upward to form a retaining wall 10 by arranging a plurality of wall materials 8 in the horizontal direction and the vertical direction.

擁壁１０を形成する各壁面材８の背面には、図１に示すように、取付部材１２を取り付けている。取付部材１２には、取付具１４により抗張部材１６の一端側を取り付けて連結する。抗張部材１６は、他端側を壁面材８から離間する方向に展張している。抗張部材１６には、壁面材８に近接する一端側近傍に前側アンカープレート１８を連結するとともに、壁面材８から離間する他端側に後側アンカープレート２０を連結している。   As shown in FIG. 1, an attachment member 12 is attached to the back surface of each wall surface material 8 forming the retaining wall 10. One end side of the tensile member 16 is attached to and connected to the attachment member 12 by a fixture 14. The tensile member 16 extends on the other end side in a direction away from the wall surface material 8. A front anchor plate 18 is connected to the tensile member 16 in the vicinity of one end side close to the wall surface material 8, and a rear anchor plate 20 is connected to the other end side separated from the wall surface material 8.

抗張部材１６を連結した壁面材８の背面側には、盛土２２を投入転圧して抗張部材１６と前側アンカープレート１８及び後側アンカープレート２０とを埋設することで、補強土壁６を構築する。   On the back side of the wall surface material 8 to which the tensile member 16 is connected, the embankment 22 is charged and pressed to embed the tensile member 16, the front anchor plate 18 and the rear anchor plate 20. To construct.

次に、この実施例の作用を説明する。
補強土壁６の構築に際しては、図２に示すように、先ず、水平に整地した地盤２に基礎４を設置し、この基礎４上に最下層の壁面材８を設置する。壁面材８は、背面側に傾斜させた状態で、水平方向に複数個並べて設置する。設置された各壁面材８には、背面の取付部材１２に取付具１４により前側アンカープレート１８及び後側アンカープレート２０が連結された抗張部材１６の一端側を連結し、抗張部材１６の他端側を壁面材８から離間する方向で水平に展張する。 Next, the operation of this embodiment will be described.
When constructing the reinforced earth wall 6, as shown in FIG. 2, first, the foundation 4 is installed on the ground 2 that is leveled horizontally, and the lowermost wall material 8 is installed on the foundation 4. A plurality of wall materials 8 are installed side by side in the horizontal direction in a state of being inclined toward the back side. One end side of the tensile member 16 in which the front anchor plate 18 and the rear anchor plate 20 are connected to the mounting member 12 on the back surface by the fixture 14 is connected to each installed wall material 8. The other end side is horizontally extended in a direction away from the wall surface material 8.

抗張部材１６に連結された前側アンカープレート１８及び後側アンカープレート２０は、抗張部材１６を水平に展張したことで、水平な抗張部材１６に対して垂直に連結している。抗張部材１６を連結した壁面材８は、背面側に盛土２２を投入転圧して抗張部材１６と前側アンカープレート１８及び後側アンカープレート２０とを埋設することで、第１の土壌層Ｌ１を形成する。   The front anchor plate 18 and the rear anchor plate 20 connected to the tensile member 16 are vertically connected to the horizontal tensile member 16 by horizontally stretching the tensile member 16. The wall surface material 8 to which the tensile member 16 is connected is filled with the embankment 22 on the back side to embed the tensile member 16, the front anchor plate 18 and the rear anchor plate 20, whereby the first soil layer L1. Form.

次に、同様な手順に従って、最下層の壁面材８の上方に次層の壁面材８を背面側に傾斜させた状態で水平方向に複数個並べて設置し、各壁面材８の背面の取付部材１２に取付具１４により前側アンカープレート１８及び後側アンカープレート２０が連結された抗張部材１６の一端側を連結し、抗張部材１６の他端側を壁面材８から離間する方向に水平に展張し、壁面材８の背面側に盛土２２を投入転圧して抗張部材１６と前側アンカープレート１８及び後側アンカープレート２０とを埋設することで、第１の土壌層Ｌ１上に第２の土壌層Ｌ２を形成する。   Then, following the same procedure, a plurality of wall members 8 of the next layer are installed side by side in the horizontal direction in a state where the wall member 8 of the next layer is inclined to the back side, and a mounting member on the back of each wall member 8 12, one end side of the tensile member 16 to which the front anchor plate 18 and the rear anchor plate 20 are connected by the fixture 14 is connected, and the other end side of the tensile member 16 is horizontally moved away from the wall surface material 8. By spreading and filling and rolling the embankment 22 on the back side of the wall surface material 8 to embed the tensile member 16, the front anchor plate 18 and the rear anchor plate 20, the second soil layer L1 is filled with the second material. A soil layer L2 is formed.

このように、地盤２上には、壁面材８の設置・抗張部材１６の連結・盛土２２の投入転圧による抗張部材１６と前側アンカープレート１８及び後側アンカープレート２０との埋設を最下層から最上層に向かって順次に実施し、第１の土壌層Ｌ１〜第５の土壌層Ｌ５を形成することで、傾斜する擁壁１０を備えた補強土壁６を構築する。   Thus, on the ground 2, the wall member 8, the connection of the tensile member 16, and the embedding of the tensile member 16, the front anchor plate 18 and the rear anchor plate 20 by loading and rolling of the embankment 22 are the most important. The reinforcement soil wall 6 provided with the inclined retaining wall 10 is constructed by forming the first soil layer L1 to the fifth soil layer L5 sequentially from the lower layer to the uppermost layer.

構築された補強土壁６中には、第１の土壌層Ｌ１〜第５の土壌層Ｌ５の各壁面材８に近接して上下に並ぶ前側アンカープレート１８の部位に、傾斜する壁面１０と平行な上下方向に連続する前側補強土壁部分６Ｆが発現し、第１の土壌層Ｌ１〜第５の土壌層Ｌ５の各壁面材８から離間して上下に並ぶ各後側アンカープレート２０の部位に、傾斜する壁面１０と平行な上下方向に連続する後側補強土壁部分６Ｒが発現する。   In the constructed reinforced soil wall 6, the front anchor plate 18 is arranged in the vicinity of each wall surface material 8 of the first soil layer L1 to the fifth soil layer L5 and is parallel to the inclined wall surface 10. The front-side reinforcing soil wall portion 6F that is continuous in the vertical direction appears, and is separated from the wall surface material 8 of the first soil layer L1 to the fifth soil layer L5 and is located at the site of the rear anchor plates 20 that are lined up and down. The rear reinforcing earth wall portion 6R that is continuous in the vertical direction parallel to the inclined wall surface 10 appears.

これにより、この補強土壁構造は、抗張部材１６の壁面材８に近接する一端側近傍の前側アンカープレート１８の部位に発現する前側補強土壁部分６Ｆと、抗張部材１６の壁面材８から離間する他端側の後側アンカープレート２０の部位に発現する後側補強土壁部分６Ｒとによって、盛土１２を強固に拘束することができ、堅固な補強土壁６を構築することができる。   As a result, this reinforced earth wall structure has a front side reinforcing earth wall portion 6F that develops at a portion of the front anchor plate 18 near one end side close to the wall surface material 8 of the tensile member 16, and the wall surface material 8 of the tensile member 16. The embankment 12 can be firmly constrained by the rear reinforcing earth wall portion 6R that appears in the rear anchor plate 20 portion on the other end side that is separated from the outer wall, and a solid reinforcing earth wall 6 can be constructed. .

また、この補強土壁構造は、抗張部材１６の壁面材８に近接する一端側近傍の前側アンカープレート１８の部位に発現する前側補強土壁部分６Ｆによって、壁面材８に作用する土圧の一部を支持することができ、壁面材８に作用する土圧を軽減することができ、壁面材８の変位を抑制して擁壁１０の安定性を向上することができる。   In addition, this reinforced earth wall structure is configured so that the earth pressure acting on the wall surface material 8 is generated by the front side reinforcing earth wall portion 6F that appears in the region of the front anchor plate 18 near one end side close to the wall surface material 8 of the tensile member 16. A part can be supported, the earth pressure acting on the wall surface material 8 can be reduced, and the displacement of the wall surface material 8 can be suppressed to improve the stability of the retaining wall 10.

なお、この実施例では、擁壁１０を水平な地盤２に対して傾斜させて形成したが、擁壁１０を水平な地盤２に対して垂直に形成した補強土壁構造にも適用することができる。   In this embodiment, the retaining wall 10 is formed to be inclined with respect to the horizontal ground 2. However, the retaining wall 10 may be applied to a reinforced earth wall structure in which the retaining wall 10 is formed perpendicular to the horizontal ground 2. it can.

また、この発明は、上述実施例に限定されることなく、種々応用改変が可能である。
図３は、補強土壁構造の第１の変形例を示すものである。この補強土壁構造の抗張部材１６には、壁面材８に近接する一端側近傍に複数枚の、図３においては２枚の前側アンカープレート１８−１・１８−２を連結するとともに、壁面材８から離間する他端側に複数枚の、図３においては２枚の後側アンカープレート２０−１・２０−２を連結したものである。 Further, the present invention is not limited to the above-described embodiments, and various application modifications can be made.
FIG. 3 shows a first modification of the reinforced earth wall structure. A plurality of front anchor plates 18-1 and 18-2 in FIG. 3 are connected to the tensile member 16 of this reinforced earth wall structure in the vicinity of one end side close to the wall surface material 8. A plurality of rear anchor plates 20-1 and 20-2 in FIG. 3 are connected to the other end side separated from the material 8.

この補強土壁構造は、抗張部材１６に夫々２枚の前側アンカープレート１８−１・１８−２及び後側アンカープレート２０−１・２０−２を連結したことで、前側アンカープレート１８−１・１８−２の部位に発現する前側補強土壁部分６Ｆと後側アンカープレート２０−１・２０−２の部位に発現する後側補強土壁部分６Ｒとの規模を大きくすることができ、盛土１２の拘束効果を高めて堅固な補強土壁６を構築することができる。   This reinforced earth wall structure is formed by connecting the two front anchor plates 18-1 and 18-2 and the rear anchor plates 20-1 and 20-2 to the tensile member 16, respectively. The scale of the front reinforcing earth wall portion 6F that appears at the site 18-2 and the rear reinforcing earth wall portion 6R that appears at the sites of the rear anchor plates 20-1 and 20-2 can be increased, and the embankment Thus, it is possible to construct the rigid reinforced earth wall 6 by increasing the 12 restraining effect.

また、この補強土壁構造は、前側補強土壁部分６Ｆの発現規模を大きくすることができるので、壁面材８に作用する土圧の支持効果を高めて、壁面材８に作用する土圧をより軽減することができ、壁面材８の変位を抑制して擁壁１０のさらに安定性を向上することができる。   Moreover, since this reinforced earth wall structure can increase the expression scale of the front side reinforced earth wall portion 6F, the effect of supporting the earth pressure acting on the wall surface material 8 is enhanced, and the earth pressure acting on the wall surface material 8 is increased. This can be further reduced, and the displacement of the wall surface material 8 can be suppressed to further improve the stability of the retaining wall 10.

図４は、補強土壁構造の第２の変形例を示すものである。この補強土壁構造の抗張部材１６には、壁面材８に近接する一端側近傍に面積の異なる複数枚の、図４においては標準面積の前側アンカープレート１８−１と標準面積よりも大きい拡大面積の前側アンカープレート１８−２との２枚を連結するとともに、壁面材８から離間する他端側に面積の異なる複数枚の、図４においては標準面積の後側アンカープレート２０−１と標準面積よりも大きい拡大面積の後側アンカープレート２０−２との２枚を連結したものである。   FIG. 4 shows a second modification of the reinforced earth wall structure. In the tensile member 16 having the reinforced earth wall structure, a plurality of front anchor plates 18-1 having a standard area and an enlarged area larger than the standard area in FIG. A plurality of front anchor plates 18-2 having an area are connected to each other, and a plurality of sheets having different areas on the other end side separated from the wall surface material 8 are rear standard anchor plate 20-1 and a standard area in FIG. The two are connected to the rear anchor plate 20-2 having an enlarged area larger than the area.

この補強土壁構造は、抗張部材１６に夫々面積の異なる２枚の前側アンカープレート１８−１・１８−２及び後側アンカープレート２０−１・２０−２を連結したことで、前側アンカープレート１８−１・１８−２の部位に発現する前側補強土壁部分６Ｆと後側アンカープレート２０−１・２０−２の部位に発現する後側補強土壁部分６Ｒとをより効率的に発現させることができ、盛土１２の拘束効果を高めて堅固な補強土壁６を構築することができる。   This reinforced earth wall structure is formed by connecting the two front anchor plates 18-1 and 18-2 and the rear anchor plates 20-1 and 20-2 having different areas to the tensile member 16, so that the front anchor plates are connected. The front side reinforcing earth wall part 6F that develops in the parts 18-1 and 18-2 and the rear side reinforcing earth wall part 6R that appears in the parts of the rear anchor plates 20-1 and 20-2 are expressed more efficiently. Therefore, it is possible to increase the restraining effect of the embankment 12 and construct a solid reinforced earth wall 6.

また、この補強土壁構造は、前側補強土壁部分６Ｆをより効率的に発現させることができるので、壁面材８に作用する土圧の支持効果を高めて、壁面材８に作用する土圧をより軽減することができ、壁面材８の変位を抑制して擁壁１０のさらに安定性を向上することができる。   Moreover, since this reinforcement earth wall structure can express the front side reinforcement earth wall part 6F more efficiently, the support effect of the earth pressure which acts on the wall surface material 8 is improved, and the earth pressure which acts on the wall surface material 8 Can be further reduced, and the displacement of the wall surface material 8 can be suppressed to further improve the stability of the retaining wall 10.

図５は、補強土壁構造の第３の変形例を示すものである。この補強土壁構造の抗張部材１６には、壁面材８に近接する一端側近傍に前側アンカープレート１８を水平に展張した抗張部材１６の展張した方向に対して傾斜させて連結するとともに、壁面材８から離間する他端側に後側アンカープレート２０を水平に展張した抗張部材１６の展張した方向に対して傾斜させて連結したものである。   FIG. 5 shows a third modification of the reinforced earth wall structure. The reinforcement member 16 having the reinforced earth wall structure is connected to the front anchor plate 18 in the vicinity of one end near the wall surface member 8 so as to be inclined with respect to the extending direction of the tensile member 16 that is horizontally extended, The rear anchor plate 20 is connected to the other end side that is separated from the wall surface member 8 while being inclined with respect to the extending direction of the tensile member 16 that extends horizontally.

この補強土壁構造は、傾斜する擁壁１０の壁面材８に水平に展張した抗張部材１６に前側アンカープレート１８及び後側アンカープレート２０を傾斜させて連結したことで、傾斜する擁壁１０の壁面材８と平行するように前側アンカープレート１８及び後側アンカープレート２０が配置され、傾斜する擁壁１０の壁面材８に対して前側アンカープレート１８の部位に発現する前側補強土壁部分６Ｆと後側アンカープレート２０の部位に発現する後側補強土壁部分６Ｒとをより効率的に発現させることができ、盛土１２の拘束効果を高めて堅固な補強土壁６を構築することができる。   This reinforced earth wall structure is constructed by inclining and connecting the front anchor plate 18 and the rear anchor plate 20 to a tensile member 16 that is horizontally stretched on the wall surface material 8 of the inclined retaining wall 10. The front anchor plate 18 and the rear anchor plate 20 are arranged so as to be parallel to the wall surface material 8 of the front wall, and the front reinforcing earth wall portion 6F that appears at the front anchor plate 18 portion with respect to the wall surface material 8 of the inclined retaining wall 10. And the rear reinforcing earth wall portion 6R that appears at the site of the rear anchor plate 20 can be expressed more efficiently, and the restraining effect of the embankment 12 can be enhanced and the solid reinforcing earth wall 6 can be constructed. .

また、この補強土壁構造は、前側補強土壁部分６Ｆをより効率的に発現させることができるので、壁面材８に作用する土圧の支持効果を高めて、壁面材８に作用する土圧をより軽減することができ、壁面材８の変位を抑制して擁壁１０のさらに安定性を向上することができる。   Moreover, since this reinforcement earth wall structure can express the front side reinforcement earth wall part 6F more efficiently, the support effect of the earth pressure which acts on the wall surface material 8 is improved, and the earth pressure which acts on the wall surface material 8 Can be further reduced, and the displacement of the wall surface material 8 can be suppressed to further improve the stability of the retaining wall 10.

この補強土壁構造は、抗張部材の壁面材に近接する一端側近傍に前側アンカープレートを連結するとともに抗張部材の壁面材から離間する他端側に後側アンカープレートを連結することで、盛土を強固に拘束し、壁面材に作用する土圧を軽減することができるものであり、他の地盤を補強する構造にも応用することができる。   This reinforced earth wall structure connects the front anchor plate in the vicinity of one end side close to the wall surface material of the tensile member and connects the rear anchor plate to the other end side separated from the wall surface material of the tensile member, The embankment can be firmly restrained and the earth pressure acting on the wall surface material can be reduced, and can be applied to a structure for reinforcing other ground.

実施例を示す壁面材に抗張部材を取り付けた状態の側面図である。It is a side view of the state which attached the tensile member to the wall surface material which shows an Example. 実施例を示す補強土壁構造の断面図である。It is sectional drawing of the reinforced earth wall structure which shows an Example. 第１の変形例を示す壁面材に抗張部材を取り付けた状態の側面図である。It is a side view of the state which attached the tension member to the wall surface material which shows a 1st modification. 第２の変形例を示す壁面材に抗張部材を取り付けた状態の側面図である。It is a side view of the state which attached the tensile member to the wall surface material which shows a 2nd modification. 第３の変形例を示す壁面材に抗張部材を取り付けた状態の側面図である。It is a side view of the state which attached the tensile member to the wall surface material which shows a 3rd modification.

符号の説明Explanation of symbols

２ 地盤
４ 基礎
６ 補強土壁構造
８ 壁面材
１０ 擁壁
１２ 取付部材
１４ 取付具
１６ 抗張部材
１８ 前側アンカープレート
２０ 後側アンカープレート
２２ 盛土 2 Ground 4 Foundation 6 Reinforced Earth Wall Structure 8 Wall Material 10 Retaining Wall 12 Mounting Member 14 Mounting Tool 16 Tensile Member 18 Front Anchor Plate 20 Rear Anchor Plate 22 Filling

Claims (4)

擁壁を形成する壁面材の背面に抗張部材の一端側を連結し、この抗張部材の他端側を前記壁面材から離間する方向に展張し、前記抗張部材には前記壁面材に近接する一端側近傍に前側アンカープレートを連結するとともに前記壁面材から離間する他端側に後側アンカープレートを連結し、前記壁面材の背面側に盛土を投入転圧して前記抗張部材と前記前側アンカープレート及び後側アンカープレートとを埋設することで補強土壁を構築することを特徴とする補強土壁構造。   One end side of the tensile member is connected to the back surface of the wall surface material forming the retaining wall, and the other end side of the tensile member is extended in a direction away from the wall surface material, and the tensile member is attached to the wall surface material. A front anchor plate is connected to the vicinity of one adjacent end and a rear anchor plate is connected to the other end separated from the wall surface material. A reinforced earth wall structure characterized in that a reinforced earth wall is constructed by embedding a front anchor plate and a rear anchor plate. 前記抗張部材には、前記壁面材に近接する一端側近傍に複数枚の前記前側アンカープレートを連結するとともに前記壁面材から離間する他端側に複数枚の前記後側アンカープレートを連結したことを特徴とする請求項１に記載の補強土壁構造。   A plurality of the front anchor plates are connected to the tensile member in the vicinity of one end side close to the wall surface material, and a plurality of the rear anchor plates are connected to the other end side separated from the wall surface material. The reinforced earth wall structure according to claim 1. 前記抗張部材には、前記壁面材に近接する一端側近傍に面積の異なる複数枚の前記前側アンカープレートを連結するとともに前記壁面材から離間する他端側に面積の異なる複数枚の前記後側アンカープレートを連結したことを特徴とする請求項１に記載の補強土壁構造。   The tensile member is connected to a plurality of the front anchor plates having different areas in the vicinity of one end side close to the wall surface material, and a plurality of the rear sides having different areas on the other end side separated from the wall surface material. The reinforced earth wall structure according to claim 1, wherein an anchor plate is connected. 前記抗張部材には、前記壁面材に近接する一端側近傍に前記前側アンカープレートを前記抗張部材の展張した方向に対して傾斜させて連結するとともに前記壁面材から離間する他端側に前記後側アンカープレートを前記抗張部材の展張した方向に対して傾斜させて連結したことを特徴とする請求項１〜請求項３のいずれか一項に記載の補強土壁構造。   To the tensile member, the front anchor plate is connected to the vicinity of one end side close to the wall surface material while being inclined with respect to the direction in which the tensile member is expanded, and the other end side separated from the wall surface material is connected to the tensile strength member. The reinforced earth wall structure according to any one of claims 1 to 3, wherein a rear anchor plate is connected to be inclined with respect to a direction in which the tensile member is extended.
JP2007156211A 2007-06-13 2007-06-13 Reinforced soil wall structure Pending JP2008308844A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017008608A (en) * 2015-06-23 2017-01-12 株式会社箱型擁壁研究所 Anchor-reinforced soil wall
JP2020084480A (en) * 2018-11-20 2020-06-04 ランデックス工業株式会社 Soil wall structure for anchor reinforcement
JP7109830B1 (en) * 2021-12-15 2022-08-01 株式会社水戸グリーンサービス Embankment reinforced wall and construction method of embankment reinforced wall

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Publication number Priority date Publication date Assignee Title
JPH01151616A (en) * 1987-11-06 1989-06-14 William K Hilfiker Retaining wall using reinforcing bar and construction method thereof
JPH02136427A (en) * 1988-11-16 1990-05-25 Kyokado Eng Co Ltd Reinforcement for reinforcing soil
JPH09203044A (en) * 1996-01-26 1997-08-05 K R I Engineers Kk Reinforcing material for reinforcing soil with ribbed reinforcing bar
JPH1136308A (en) * 1997-07-22 1999-02-09 Kyokado Eng Co Ltd Reinforcing earth-retaining wall panel and reinforced earth structure
JP2006063595A (en) * 2004-08-26 2006-03-09 Geo System Co Ltd Earth reinforcing structure

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01151616A (en) * 1987-11-06 1989-06-14 William K Hilfiker Retaining wall using reinforcing bar and construction method thereof
JPH02136427A (en) * 1988-11-16 1990-05-25 Kyokado Eng Co Ltd Reinforcement for reinforcing soil
JPH09203044A (en) * 1996-01-26 1997-08-05 K R I Engineers Kk Reinforcing material for reinforcing soil with ribbed reinforcing bar
JPH1136308A (en) * 1997-07-22 1999-02-09 Kyokado Eng Co Ltd Reinforcing earth-retaining wall panel and reinforced earth structure
JP2006063595A (en) * 2004-08-26 2006-03-09 Geo System Co Ltd Earth reinforcing structure

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017008608A (en) * 2015-06-23 2017-01-12 株式会社箱型擁壁研究所 Anchor-reinforced soil wall
JP2020084480A (en) * 2018-11-20 2020-06-04 ランデックス工業株式会社 Soil wall structure for anchor reinforcement
JP7149168B2 (en) 2018-11-20 2022-10-06 ランデックス工業株式会社 Anchor reinforced earth wall structure
JP7109830B1 (en) * 2021-12-15 2022-08-01 株式会社水戸グリーンサービス Embankment reinforced wall and construction method of embankment reinforced wall

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