JP7053076B1 - Anchor material and reinforced soil wall - Google Patents

Anchor material and reinforced soil wall Download PDF

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JP7053076B1
JP7053076B1 JP2021129907A JP2021129907A JP7053076B1 JP 7053076 B1 JP7053076 B1 JP 7053076B1 JP 2021129907 A JP2021129907 A JP 2021129907A JP 2021129907 A JP2021129907 A JP 2021129907A JP 7053076 B1 JP7053076 B1 JP 7053076B1
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reinforced soil
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洋 雨貝
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株式会社水戸グリーンサービス
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Abstract

【課題】構造が簡単で組み立てが容易なアンカー材と排水性能の高い補強土壁を提供すること。【解決手段】本発明のアンカー材1は、先端を壁面パネルA1の背面に連結可能なアンカーバー10と、アンカーバー10に付設した1つ又は複数のアンカープレート20と、を備え、アンカープレート20は、板状のプレート本体21と、プレート本体21の中心付近からプレート本体21の側縁に向かって開拡する楔状溝22と、を有し、アンカーバー10を楔状溝22内に嵌め合わせた状態において、アンカーバー10がプレート本体21の略中心に位置し、アンカーバー10と楔状溝22の溝底との間に間隙Sが設けられることを特徴とする。本発明の補強土壁Aは、地山前面に立設した複数の壁面パネルA1と、壁面パネルA1の背面に連結したアンカー材1と、地山と複数の壁面パネルA1の間に充填した盛土材A2と、を備え、盛土材A2内に埋設したアンカー材1によって、壁面パネルA1を盛土材A2内に定着させたことを特徴とする。【選択図】図1PROBLEM TO BE SOLVED: To provide an anchor material having a simple structure and easy to assemble, and a reinforced soil wall having high drainage performance. SOLUTION: An anchor material 1 of the present invention includes an anchor bar 10 whose tip can be connected to the back surface of a wall surface panel A1 and one or a plurality of anchor plates 20 attached to the anchor bar 10, and the anchor plate 20 is provided. Has a plate-shaped plate body 21 and a wedge-shaped groove 22 that expands from the vicinity of the center of the plate body 21 toward the side edge of the plate body 21, and the anchor bar 10 is fitted into the wedge-shaped groove 22. In the state, the anchor bar 10 is located substantially at the center of the plate body 21, and a gap S is provided between the anchor bar 10 and the groove bottom of the wedge-shaped groove 22. The reinforced soil wall A of the present invention is a plurality of wall panels A1 erected on the front surface of the ground, an anchor material 1 connected to the back surface of the wall panel A1, and an embankment filled between the ground and the plurality of wall panels A1. It is characterized in that the wall panel A1 is fixed in the embankment material A2 by the anchor material 1 which is provided with the material A2 and is embedded in the embankment material A2. [Selection diagram] Fig. 1

Description

本発明は、アンカー材及び補強土壁に関し、特に構造が簡単で組み立てが容易なアンカー材と、これを用いてなる排水性能の高い補強土壁に関する。
に関する。
The present invention relates to an anchor material and a reinforced soil wall, and particularly to an anchor material having a simple structure and easy to assemble, and a reinforced soil wall using the anchor material and having high drainage performance.
Regarding.

補強土壁とは、垂直方向に積上げた壁面パネルと地山の間に盛土材を充填し、盛土材内に埋設したアンカー材の一端を壁面パネルの背面に連結することで、アンカー材の引抜き抵抗力によって、壁面パネルに作用する土圧に対抗させる土木構造物である。
特許文献1及び2には、壁面パネルの背面に連結した棒状補強材と、棒状補強材に螺着したアンカープレートと、棒状補強材の中間部に棒状補強材と平行に付設した滑り抑止プレートとからなる、補強土壁用のアンカー材が開示されている。
Reinforced soil wall is to pull out the anchor material by filling the embankment material between the wall panel stacked in the vertical direction and the ground and connecting one end of the anchor material buried in the embankment material to the back surface of the wall panel. It is a civil engineering structure that resists the earth pressure acting on the wall panel by the resistance force.
Patent Documents 1 and 2 describe a rod-shaped reinforcing material connected to the back surface of a wall panel, an anchor plate screwed to the rod-shaped reinforcing material, and a slip restraining plate attached in the middle of the rod-shaped reinforcing material in parallel with the rod-shaped reinforcing material. Anchor materials for reinforced soil walls are disclosed.

特開2012-211507号公報Japanese Unexamined Patent Publication No. 2012-211507 特開2010-180572号公報Japanese Unexamined Patent Publication No. 2010-180572

従来技術には以下の課題がある。
<1>アンカー材の部品数が多く構造が複雑であるため、組み立てに時間がかかる。特に棒状補強材への複数の部材の連通と螺着に手間がかかる。また、部品数が多いため、材料コストが高い。
<2>滑り抑止プレートが盛土材内に水平に配置されるため、盛土材の転圧時に滑り抑止プレートの下部に転圧不足が生じやすく、供用後に盛土材が圧密沈下する原因となるおそれがある。
<3>盛土材の内部にアンカープレートが壁面パネルと平行に配置されるため、盛土材内の浸透水の移動を遮蔽して、アンカープレートの背面に滞留させるおそれがある。これによって、豪雨時等に盛土材内に浸透水による飽和領域が拡大し、補強土壁の強度を低下させるおそれがある。
The prior art has the following problems.
<1> Since the number of parts of the anchor material is large and the structure is complicated, it takes time to assemble. In particular, it takes time and effort to communicate and screw a plurality of members to the rod-shaped reinforcing material. In addition, the material cost is high due to the large number of parts.
<2> Since the anti-slip plate is arranged horizontally in the embankment material, insufficient rolling compaction may occur at the bottom of the anti-slip plate when the embankment material is compacted, which may cause the embankment material to be consolidated and subsided after operation. be.
<3> Since the anchor plate is arranged parallel to the wall panel inside the embankment material, there is a possibility that the seepage water in the embankment material may be blocked from moving and stay on the back surface of the anchor plate. As a result, the saturated area due to seepage water may expand in the embankment material during heavy rain, etc., and the strength of the reinforced soil wall may decrease.

本発明は、以上の従来技術の課題を解決するためのアンカー材及び補強土壁を提供することを目的とする。 An object of the present invention is to provide an anchor material and a reinforced soil wall for solving the above-mentioned problems of the prior art.

本発明の補強土壁のアンカー材は、先端を壁面パネルの背面に連結可能なアンカーバーと、アンカーバーに付設した1つ又は複数のアンカープレートと、を備え、アンカープレートは、板状のプレート本体と、プレート本体の中心付近からプレート本体の側縁に向かって開拡する楔状溝と、を有し、アンカーバーを楔状溝内に嵌め合わせた状態において、アンカーバーがプレート本体の略中心に位置し、アンカーバーと楔状溝の溝底との間に間隙が設けられることを特徴とする。 The anchor material of the reinforcing soil wall of the present invention includes an anchor bar whose tip can be connected to the back surface of the wall panel and one or more anchor plates attached to the anchor bar, and the anchor plate is a plate-shaped plate. It has a main body and a wedge-shaped groove that expands from the vicinity of the center of the plate body toward the side edge of the plate body, and in a state where the anchor bar is fitted in the wedge-shaped groove, the anchor bar is substantially at the center of the plate body. It is located and is characterized in that a gap is provided between the anchor bar and the bottom of the wedge-shaped groove.

本発明の補強土壁のアンカー材は、アンカーバーが、異形鉄筋であってもよい。 In the anchor material of the reinforced soil wall of the present invention, the anchor bar may be a deformed reinforcing bar.

本発明の補強土壁は、地山の前面に立設した複数の壁面パネルと、壁面パネルの背面に連結したアンカー材と、地山と複数の壁面パネルの間に充填した盛土材と、を備え、盛土材内に埋設したアンカー材によって、壁面パネルを盛土材に定着させたことを特徴とする。 The reinforced soil wall of the present invention includes a plurality of wall panels erected on the front surface of the ground, an anchor material connected to the back surface of the wall panel, and an embankment material filled between the ground and the plurality of wall panels. The feature is that the wall panel is fixed to the embankment material by the anchor material embedded in the embankment material.

本発明の補強土壁は、複数の壁面パネルの背面と盛土材の間に砕石からなる排水層を設けてもよい。 In the reinforced soil wall of the present invention, a drainage layer made of crushed stone may be provided between the back surface of the plurality of wall panels and the embankment material.

本発明の補強土壁は、管状、棒状、又は紐状のドレーン管を備え、ドレーン管を、楔状溝内を通し、アンカーバーの下部に沿って、盛土材内から排水層内にわたって配置してもよい。 The reinforcing soil wall of the present invention includes a tubular, rod-shaped, or string-shaped drain pipe, and the drain pipe is arranged through the wedge-shaped groove and along the lower part of the anchor bar from the inside of the embankment material to the inside of the drainage layer. May be good.

本発明の補強土壁は、アンカーバーの先端が、略C字状、略U字状、又は略V字状のフック端であって、壁面パネルの背面に付設した環状金具にフック端を係止し、又は環状金具に係止したフック端の先端をアンカーバーに固定して連結してもよい。 In the reinforcing soil wall of the present invention, the tip of the anchor bar is a hook end having a substantially C-shape, a substantially U-shape, or a substantially V-shape, and the hook end is engaged with an annular metal fitting attached to the back surface of the wall surface panel. The tip of the hook end that is stopped or locked to the annular metal fitting may be fixed to the anchor bar and connected.

本発明の補強土壁は、アンカーバーの後端を、地山内に打設した鉄筋挿入工の頭部と連結してもよい。 In the reinforced soil wall of the present invention, the rear end of the anchor bar may be connected to the head of the reinforced material inserted in the ground.

本発明の補強土壁は、壁面パネルが、金属製の網状体からなっていてもよい。 In the reinforced soil wall of the present invention, the wall surface panel may be made of a metal mesh.

本発明のアンカー材及び補強土壁は、次の効果の少なくともひとつを備える。
<1>アンカー材が2部材のみからなり、アンカープレートの楔状溝にアンカーバーを嵌め込むだけで連結できるため、組み立てが容易で、短時間で組み立てることができる。また、部品数が少なく構造が単純であるため、材料コストが安価である。
<2>面状のアンカープレートと棒状のアンカーバーの2部材に分解できるため、荷姿がよく、積み重ねて一度に多数搬送できると共に、保管場所を広く占有しない。
<3>アンカーバーをアンカープレートの楔状溝に嵌め込んで固定する構造であるため、盛土材内の浸透水がアンカープレートに阻害されず、間隙や楔状溝を通って移動できる。このため、排水性能が高く、豪雨時にも補強土壁の強度の低下を惹起しにくい。
The anchor material and reinforced soil wall of the present invention have at least one of the following effects.
<1> Since the anchor material consists of only two members and can be connected by simply fitting the anchor bar into the wedge-shaped groove of the anchor plate, it is easy to assemble and can be assembled in a short time. Moreover, since the number of parts is small and the structure is simple, the material cost is low.
<2> Since it can be disassembled into two members, a planar anchor plate and a rod-shaped anchor bar, it has a good packaging, can be stacked and transported in large numbers at one time, and does not occupy a large storage space.
<3> Since the anchor bar is fitted into the wedge-shaped groove of the anchor plate and fixed, the seepage water in the embankment material is not obstructed by the anchor plate and can move through the gap or the wedge-shaped groove. Therefore, the drainage performance is high, and it is difficult to cause a decrease in the strength of the reinforced soil wall even during heavy rain.

本発明に係る補強土壁の説明図。Explanatory drawing of the reinforced soil wall which concerns on this invention. 壁面パネルの説明図。Explanatory drawing of the wall panel. 本発明に係るアンカー材の説明図。Explanatory drawing of the anchor material which concerns on this invention. 連結端の説明図。Explanatory drawing of the connecting end. アンカー材の組み立て方法の説明図。Explanatory drawing of how to assemble anchor material. 実施例2の説明図。Explanatory drawing of Example 2. FIG. 実施例4の説明図。Explanatory drawing of Example 4.

以下、図面を参照しながら本発明のアンカー材及び補強土壁について詳細に説明する。 Hereinafter, the anchor material and the reinforced soil wall of the present invention will be described in detail with reference to the drawings.

[補強土壁]
<1>全体の構成(図1)。
本発明の補強土壁Aは、地山の前面に立設した複数の壁面パネルA1と、壁面パネルA1の背面に連結したアンカー材1と、地山と壁面パネルA1の間に充填した盛土材A2と、を少なくとも備える。
本例では、1枚の壁面パネルA1に対して1つのアンカー材1を付設する。ただしアンカー材1の数はこれに限らず、補強土壁Aの設計に応じて、複数のアンカー材1を壁面パネルA1の適宜の位置に付設することができる。
アンカー材1は、盛土材A2内に埋設する。なお、本例ではアンカー材1の楔状溝22を下向きにして埋設しているが、これを上向きに埋設してもよい。
本例では、壁面パネルA1の背面と盛土材A2の間に、砕石からなる排水層A3を設ける。
本例では複数の壁面パネルA1を垂直に積み上げるが、これに限らず、所定の角度をもって傾斜して積上げてもよい。
また盛土材A2内に公知の水抜きパイプを配置してもよい(不図示)。
[Reinforced soil wall]
<1> Overall configuration (Fig. 1).
The reinforced soil wall A of the present invention includes a plurality of wall panel A1 erected on the front surface of the ground, an anchor material 1 connected to the back surface of the wall panel A1, and an embankment material filled between the ground and the wall panel A1. A2 and at least.
In this example, one anchor material 1 is attached to one wall panel A1. However, the number of anchor materials 1 is not limited to this, and a plurality of anchor materials 1 can be attached to appropriate positions of the wall surface panel A1 according to the design of the reinforcing soil wall A.
The anchor material 1 is buried in the embankment material A2. In this example, the wedge-shaped groove 22 of the anchor material 1 is buried facing downward, but this may be buried facing upward.
In this example, a drainage layer A3 made of crushed stone is provided between the back surface of the wall surface panel A1 and the embankment material A2.
In this example, a plurality of wall surface panels A1 are stacked vertically, but the present invention is not limited to this, and the wall panels A1 may be inclined and stacked at a predetermined angle.
Further, a known drainage pipe may be arranged in the embankment material A2 (not shown).

<2>壁面パネル(図2)
壁面パネルA1は、補強土壁Aの壁面を構成する部材である。
壁面パネルA1は、背面側にアンカー材1と連結するための連結部A1aを備える。
本例では壁面パネルA1として、背面に略コの字形の金属製の連結部A1aを縦向きに埋設したプレキャストコンクリート製パネルを採用する。ただし壁面パネルA1の構造はこれに限らず、コンクリートブロック、樹脂製パネル、捨て型枠等であってもよい。
壁面パネルA1には、水抜き穴を設けてもよい(不図示)。
<2> Wall panel (Fig. 2)
The wall surface panel A1 is a member constituting the wall surface of the reinforced soil wall A.
The wall surface panel A1 is provided with a connecting portion A1a for connecting to the anchor material 1 on the back surface side.
In this example, as the wall surface panel A1, a precast concrete panel in which a substantially U-shaped metal connecting portion A1a is vertically embedded in the back surface is adopted. However, the structure of the wall surface panel A1 is not limited to this, and may be a concrete block, a resin panel, a discard form, or the like.
The wall panel A1 may be provided with a drain hole (not shown).

<3>盛土材
盛土材A2は、地山と壁面パネルA1の間に充填する盛土である。
本例では盛土材A2として、気泡混合材等を含む軽量盛土を採用する。
盛土材A2は軽量盛土に限らず、現地発生土、各種の改良土、建設残土等を採用することができるが、一層ごとのまき出し厚さを30~50cmとし、各層ごとに充分転圧し、締め固めることが望ましい。また、水分を多く含む建設残土は固化剤等を用いて改良土として採用することが望ましい。
<3> Embankment material The embankment material A2 is an embankment filled between the ground and the wall surface panel A1.
In this example, as the embankment material A2, a lightweight embankment containing a bubble mixing material or the like is adopted.
The embankment material A2 is not limited to lightweight embankment, but locally generated soil, various improved soil, construction surplus soil, etc. can be used. It is desirable to compact. In addition, it is desirable to use construction surplus soil containing a large amount of water as improved soil using a solidifying agent or the like.

<4>アンカー材(図3)
アンカー材1は、壁面パネルA1に作用する土圧に対し、引抜き抵抗力を発揮する部材である。
アンカー材1は、アンカーバー10と、アンカーバー10に付設した1つ又は複数のアンカープレート20と、を少なくとも備える。
本例では、1本のアンカーバー10に3枚のアンカープレート20を付設する。ただしアンカープレート20の数はこれに限らず、1枚、2枚、又は4枚以上であってもよい。
<4> Anchor material (Fig. 3)
The anchor material 1 is a member that exerts a pull-out resistance against the earth pressure acting on the wall surface panel A1.
The anchor material 1 includes at least an anchor bar 10 and one or more anchor plates 20 attached to the anchor bar 10.
In this example, three anchor plates 20 are attached to one anchor bar 10. However, the number of anchor plates 20 is not limited to this, and may be one, two, or four or more.

<4.1>アンカーバー
アンカーバー10は、壁面パネルA1と連結する棒状の部材である。
アンカーバー10は、バー本体11と、バー本体11の先端に設けた連結端12と、を備える。
本例ではアンカーバー10として、先端を連結端12に加工した異形鉄筋を採用する。異形鉄筋は所定の引張強度が確保されており、周面の凹凸が後述するアンカープレート20の楔状溝22に噛み合いやすいいのでアンカーバー10に至適である。
ただしアンカーバー10は異形鉄筋に限らず、PC鋼棒、FRPロッド、アラミドFRPロッド等であってもよい。
<4.1> Anchor bar The anchor bar 10 is a rod-shaped member connected to the wall surface panel A1.
The anchor bar 10 includes a bar main body 11 and a connecting end 12 provided at the tip of the bar main body 11.
In this example, as the anchor bar 10, a deformed reinforcing bar whose tip is processed into a connecting end 12 is adopted. The deformed reinforcing bar has a predetermined tensile strength and is most suitable for the anchor bar 10 because the unevenness of the peripheral surface easily meshes with the wedge-shaped groove 22 of the anchor plate 20 described later.
However, the anchor bar 10 is not limited to the deformed reinforcing bar, and may be a PC steel rod, an FRP rod, an aramid FRP rod, or the like.

<4.1.1>連結端(図4)
アンカーバー10は、バー本体11の先端に壁面パネルA1に連結するための連結端12を備える。
本例では連結端12が、略C字状のフック端12aである(図4(a))。フック端12aを壁面パネルA1の背面に設けた環状の連結部A1aに係止することで、アンカー材1を壁面パネルA1に揺動可能に連結する。
これによって、補強土壁Aの供用後、盛土材A2が圧密沈下を引き起こしても、盛土材A2内のアンカー材1が追従して沈下することで、盛土材A2内におけるアンカー材1の定着が切れにくく、アンカー材1の引き抜き抵抗機能を維持することができる。
なお、連結端12は略C字状に限らず、略U字状(図4(b))、又は略V字状の他の形状のフック端12aであってもよい。
また、フック端12aの折り返した先端をクランプ金具等でバー本体11に固定してもよい(図4(c))。
この他、壁面パネルA1の背面に連結部A1aとして雌ねじインサートを埋設し、アンカーバー10の先端に雄ねじを刻設して連結端12として、雌ねじインサートに螺着して連結する構造であってもよい(図4(d))。
<4.1.1> Connecting end (Fig. 4)
The anchor bar 10 is provided with a connecting end 12 at the tip of the bar main body 11 for connecting to the wall surface panel A1.
In this example, the connecting end 12 is a substantially C-shaped hook end 12a (FIG. 4A). By locking the hook end 12a to the annular connecting portion A1a provided on the back surface of the wall surface panel A1, the anchor material 1 is swingably connected to the wall surface panel A1.
As a result, even if the embankment material A2 causes consolidation settlement after the reinforced soil wall A is put into service, the anchor material 1 in the embankment material A2 follows and sinks, so that the anchor material 1 is fixed in the embankment material A2. It is hard to cut and can maintain the pull-out resistance function of the anchor material 1.
The connecting end 12 is not limited to a substantially C-shape, but may be a substantially U-shape (FIG. 4 (b)) or a hook end 12a having another shape having a substantially V-shape.
Further, the folded tip of the hook end 12a may be fixed to the bar body 11 with a clamp metal fitting or the like (FIG. 4 (c)).
In addition, even if the structure is such that a female screw insert is embedded as a connecting portion A1a on the back surface of the wall surface panel A1 and a male screw is engraved on the tip of the anchor bar 10 to serve as a connecting end 12 and screwed to the female screw insert for connection. Good (Fig. 4 (d)).

<4.2>アンカープレート
アンカープレート20は、盛土材A2内における支圧機能を備える材である。
アンカープレート20は、板状のプレート本体21と、プレート本体21に設けた楔状溝22と、を少なくとも有する。
本例ではプレート本体21として、防錆処理を施した略矩形の鋼板を採用する。ただしプレート本体21の形状や素材はこれに限らず、例えば形状は円形であってもよい。
アンカープレート20は、アンカーバー10を楔状溝22内に嵌め合わせた状態において、バー本体11がプレート本体21の略中心に位置し、バー本体11と楔状溝22の溝底との間に間隙Sが設けられる。
<4.2> Anchor plate The anchor plate 20 is a material having a bearing function in the embankment material A2.
The anchor plate 20 has at least a plate-shaped plate body 21 and a wedge-shaped groove 22 provided in the plate body 21.
In this example, a substantially rectangular steel plate that has been subjected to rust prevention treatment is used as the plate body 21. However, the shape and material of the plate body 21 are not limited to this, and the shape may be circular, for example.
In the anchor plate 20, when the anchor bar 10 is fitted in the wedge-shaped groove 22, the bar main body 11 is located substantially at the center of the plate main body 21, and the gap S between the bar main body 11 and the groove bottom of the wedge-shaped groove 22. Is provided.

<4.2.1>楔状溝
楔状溝22は、アンカーバー10を嵌め込む溝である。
楔状溝22は、プレート本体21の中心付近から側縁に向かって開拡する。本例では楔状溝22の溝底が、プレート本体21の平面視において円弧状を呈する。
楔状溝22の開角は問わないが、溝幅との関係において、プレート本体21の中心において、アンカーバー10のバー本体11が堅く嵌り合う角度である必要があり、概ね2°~5°程度が望ましい。
楔状溝22の溝底は、プレート本体21の中心より深い。すなわち、プレート本体21の側縁側からみると、楔状溝22はプレート本体21の中心より対辺側まで切り込んでいる。
このため、アンカーバー10のバー本体11を楔状溝22内に嵌め合わせた状態において、バー本体11と楔状溝22の溝底との間に間隙Sが構成される。
本発明のアンカー材1は、アンカーバー10とアンカープレート20とを、間隙Sを保持しつつ嵌め合わせて連結する構造であるため、盛土材A2内の浸透水がプレート本体21によって阻害されず、間隙Sや楔状溝22を通って移動できるため、排水性能が高い。
<4.2.1> Wedge-shaped groove The wedge-shaped groove 22 is a groove into which the anchor bar 10 is fitted.
The wedge-shaped groove 22 expands from the vicinity of the center of the plate body 21 toward the side edge. In this example, the groove bottom of the wedge-shaped groove 22 has an arc shape in a plan view of the plate body 21.
The opening angle of the wedge-shaped groove 22 does not matter, but in relation to the groove width, it is necessary that the bar body 11 of the anchor bar 10 fits tightly at the center of the plate body 21, and is approximately 2 ° to 5 °. Is desirable.
The groove bottom of the wedge-shaped groove 22 is deeper than the center of the plate body 21. That is, when viewed from the side edge side of the plate body 21, the wedge-shaped groove 22 cuts from the center of the plate body 21 to the opposite side.
Therefore, in a state where the bar body 11 of the anchor bar 10 is fitted into the wedge-shaped groove 22, a gap S is formed between the bar body 11 and the groove bottom of the wedge-shaped groove 22.
Since the anchor material 1 of the present invention has a structure in which the anchor bar 10 and the anchor plate 20 are fitted and connected while maintaining the gap S, the seepage water in the embankment material A2 is not obstructed by the plate body 21. Since it can move through the gap S and the wedge-shaped groove 22, the drainage performance is high.

<4.3>アンカー材の組み立て方法(図5)
本発明のアンカー材1は、現場で容易に組み立て可能な点に一つの特徴を有する。
すなわち、アンカープレート20の楔状溝22内に、アンカーバー10のバー本体11を嵌め込むだけでアンカー材1が完成する。
詳細には、例えば現場にて楔状溝22を上向きにしてアンカープレート20を地面に配置し、楔状溝22内にアンカーバー10を位置決めする。
続いて、バー本体11の楔状溝22近くの部分をハンマー等で叩いて、バー本体11を楔状溝22内に嵌め込む。
本発明のアンカー材1は、楔状溝22がプレート本体21の中心より深く切り込んであるため、プレート本体21の中心において楔状溝22が開きやすく、アンカーバー10の嵌め込みが容易であると共に、楔状溝22の復元力によってアンカープレート20をアンカーバー10に確実に固定することができる。
また、棒状のアンカーバー10と面状のアンカープレート20に分けて搬送・保管できるため、輸送性が高く、保管場所をとらない。
<4.3> How to assemble the anchor material (Fig. 5)
The anchor material 1 of the present invention has one feature in that it can be easily assembled in the field.
That is, the anchor material 1 is completed only by fitting the bar body 11 of the anchor bar 10 into the wedge-shaped groove 22 of the anchor plate 20.
Specifically, for example, the anchor plate 20 is placed on the ground with the wedge-shaped groove 22 facing upward at the site, and the anchor bar 10 is positioned in the wedge-shaped groove 22.
Subsequently, the portion of the bar body 11 near the wedge-shaped groove 22 is hit with a hammer or the like to fit the bar body 11 into the wedge-shaped groove 22.
In the anchor material 1 of the present invention, since the wedge-shaped groove 22 is cut deeper than the center of the plate body 21, the wedge-shaped groove 22 is easily opened at the center of the plate body 21, the anchor bar 10 is easily fitted, and the wedge-shaped groove is easily fitted. The restoring force of 22 allows the anchor plate 20 to be securely fixed to the anchor bar 10.
Further, since the rod-shaped anchor bar 10 and the planar anchor plate 20 can be separately transported and stored, the transportability is high and the storage space is not taken up.

<5>排水層
排水層A3は、盛土材A2内の地下水や浸透水を外部へ排出するための層である。
本例では排水層A3として、壁面パネルA1の背面に砕石を充填し、厚さ20cm程度の層を構築する。
補強土壁における排水層の構造自体は公知なのでここでは詳述しない。
<5> Drainage layer The drainage layer A3 is a layer for discharging groundwater and seepage water in the embankment material A2 to the outside.
In this example, as the drainage layer A3, the back surface of the wall surface panel A1 is filled with crushed stone to construct a layer having a thickness of about 20 cm.
Since the structure of the drainage layer in the reinforced soil wall itself is known, it will not be described in detail here.

[ドレーン管を設ける例]
本例では、盛土材A2内のアンカー材1に沿ってドレーン管A4を配置する(図6)。
本例ではドレーン管A4として、有孔の水抜きパイプを採用する。
ドレーン管A4を、アンカーバー10のバー本体11の下部に沿って、盛土材A2内から排水層A3内にわたって配置する。
本発明のアンカー材1は、アンカープレート20が楔状溝22を備えるため、楔状溝22を通して、ドレーン管A4をバー本体11に沿って連続して配置することができる。
ドレーン管A4は望ましくは、バー本体11の後端部より後方に延出し、先端を排水層内A3に到達させる。
ドレーン管A4は、有孔の水抜きパイプの他、繊維状の棒状体、紐状体等の公知のドレーン材を採用することができる。
一般に、盛土材内にアンカー材を埋設する場合、アンカーバーの下部やアンカープレートの周辺の盛土材を十分に転圧できないため、盛土材内の地下水や浸透水がアンカーバー下部やアンカープレート周辺に滞留しやすい。
本例では、バー本体11の下部に沿ってドレーン管A4を配置することで、これらの滞留水を盛土材A2内から排水層A3内に誘導して円滑に排出し、盛土材A2内の間隙水圧を低減することができる。
[Example of installing a drain pipe]
In this example, the drain pipe A4 is arranged along the anchor material 1 in the embankment material A2 (FIG. 6).
In this example, a perforated drainage pipe is used as the drain pipe A4.
The drain pipe A4 is arranged along the lower part of the bar body 11 of the anchor bar 10 from the inside of the embankment material A2 to the inside of the drainage layer A3.
In the anchor material 1 of the present invention, since the anchor plate 20 includes the wedge-shaped groove 22, the drain pipe A4 can be continuously arranged along the bar main body 11 through the wedge-shaped groove 22.
The drain pipe A4 preferably extends rearward from the rear end of the bar body 11 so that the tip reaches the A3 in the drainage layer.
As the drain pipe A4, a known drain material such as a fibrous rod-shaped body or a string-shaped body can be adopted in addition to a perforated drainage pipe.
Generally, when the anchor material is buried in the embankment material, the embankment material under the anchor bar and around the anchor plate cannot be sufficiently compacted, so that the groundwater and seepage water in the embankment material flow to the lower part of the anchor bar and around the anchor plate. Easy to stay.
In this example, by arranging the drain pipe A4 along the lower part of the bar main body 11, these accumulated waters are guided from the inside of the embankment material A2 into the drainage layer A3 and smoothly discharged, and the gap in the embankment material A2. The water pressure can be reduced.

[アンカー材を鉄筋挿入工と連結した例]
本例では、アンカー材1の後端を地山に打設した鉄筋挿入工(ロックボルト)の頭部と連結する。
背面の地山に鉄筋挿入工が施工されている場合、地山から鉄筋挿入工の頭部が突出する。そこで本例では、アンカー材1のバー本体11の後端部を鉄筋挿入工の頭部と連結する。
詳細には、例えば地山に打設する鉄筋挿入工の頭部をO字状に、バー本体11の後端部を略C字状、略U字状、又は略V字状等に加工しておき、直接係止して又はシャックルやカラビナ等の金具を介して両者を連結する。
本例の場合、地山の勾配が急で盛土厚が比較的薄い設計であっても、地山内の鉄筋挿入工と連結することで、アンカー材1が盛土材A2の土圧に対して有効に引抜き抵抗力を発揮することができる。
[Example of connecting the anchor material with the reinforcing bar inserter]
In this example, the rear end of the anchor material 1 is connected to the head of the reinforcing bar insertion work (lock bolt) placed in the ground.
When the reinforcing bar inserter is installed on the ground on the back surface, the head of the reinforcing bar inserter protrudes from the ground. Therefore, in this example, the rear end portion of the bar body 11 of the anchor material 1 is connected to the head of the reinforcing bar insertion work.
Specifically, for example, the head of the reinforcing bar inserter to be placed in the ground is processed into an O-shape, and the rear end of the bar body 11 is processed into a substantially C-shape, a substantially U-shape, a substantially V-shape, or the like. Then, lock them directly or connect them via metal fittings such as a shackle or a carabiner.
In the case of this example, even if the slope of the ground is steep and the embankment thickness is relatively thin, the anchor material 1 is effective against the earth pressure of the embankment material A2 by connecting with the reinforcing bar insertion work in the ground. It can exert pull-out resistance.

[壁面材が金属製の網状体からなる例]
本例では、壁面パネルA1が、金属製の網状体からなる(図7)。
金属製の網状体としては例えば、エキスパンドメタル、クリンプ金網、ワイヤーメッシュ等を採用することができる。
本例では、矩形のエキスパンドメタルの前面に、十字状に組んだチャンネル材を付設して補強し、チャンネル材の中央に孔をあけてナットを付設し、背面側からアンカー材1のアンカーバー10を連結する。
エキスパンドメタルの背面には、吸出し防止材を貼り付けるが、吸出し防止材を植生マットとすることで、壁面の緑化も可能となる。
[Example of wall material made of metal mesh]
In this example, the wall panel A1 is made of a metal mesh (FIG. 7).
As the metal mesh, for example, an expanded metal, a crimp wire mesh, a wire mesh, or the like can be adopted.
In this example, a cross-shaped channel material is attached to the front surface of the rectangular expanded metal to reinforce it, a hole is made in the center of the channel material, a nut is attached, and the anchor bar 10 of the anchor material 1 is attached from the back surface side. To concatenate.
A suction prevention material is attached to the back surface of the expanded metal, but by using the suction prevention material as a vegetation mat, it is possible to green the wall surface.

1 アンカー材
10 アンカーバー
11 バー本体
12 連結端
12a フック端
20 アンカープレート
21 プレート本体
22 楔状溝
A 補強土壁
A1 壁面パネル
A1a 連結部
A2 盛土材
A3 排水層
A4 ドレーン管
S 間隙
1 Anchor material 10 Anchor bar 11 Bar body 12 Connecting end 12a Hook end 20 Anchor plate 21 Plate body 22 Wedge-shaped groove A Reinforced soil wall A1 Wall panel A1a Connecting part A2 Filling material A3 Drainage layer A4 Drain pipe S gap

Claims (7)

地山の前面に立設した複数の壁面パネルと、地山と前記複数の壁面パネルの間に充填した盛土材と、を備える補強土壁において、前記壁面パネルを前記盛土材内に定着させるための、アンカー材であって、
先端を前記壁面パネルの背面に連結可能な異形鉄筋からなるアンカーバーと、
前記アンカーバーに付設した1つ又は複数のアンカープレートと、を備え、
前記アンカープレートは、鋼板製のプレート本体と、前記プレート本体の中心付近から前記プレート本体の側縁に向かって開拡する楔状溝と、を有し、
前記異形鉄筋の節間を前記楔状溝で挟み込んで前記楔状溝内に嵌め合わせて前記楔状溝の復元力によって固定し
前記アンカーバーが前記プレート本体の略中心に位置し、前記アンカーバーと前記楔状溝の溝底との間に間隙が設けられることを特徴とする、
アンカー材。
In order to fix the wall panel in the reinforced soil wall in a reinforced soil wall provided with a plurality of wall panels erected on the front surface of the ground and an embankment material filled between the ground and the plurality of wall panels. It is an anchor material
Anchor bar made of deformed reinforcing bar whose tip can be connected to the back surface of the wall panel,
With one or more anchor plates attached to the anchor bar,
The anchor plate has a plate body made of a steel plate and a wedge-shaped groove that expands from the vicinity of the center of the plate body toward the side edge of the plate body.
The internodes of the deformed reinforcing bar are sandwiched between the wedge-shaped grooves, fitted into the wedge-shaped grooves, and fixed by the restoring force of the wedge-shaped grooves .
The anchor bar is located substantially at the center of the plate body, and a gap is provided between the anchor bar and the groove bottom of the wedge-shaped groove.
Anchor material.
地山の前面に立設した複数の壁面パネルと、
前記壁面パネルの背面に連結した請求項に記載のアンカー材と、
地山と前記複数の壁面パネルの間に充填した盛土材と、を備え、
前記盛土材内に埋設した前記アンカー材によって、前記壁面パネルを前記盛土材に定着させたことを特徴とする、
補強土壁。
Multiple wall panels erected in front of the ground and
The anchor material according to claim 1 , which is connected to the back surface of the wall panel,
The embankment material filled between the ground and the plurality of wall panels is provided.
The wall panel is fixed to the embankment material by the anchor material embedded in the embankment material.
Reinforced soil wall.
前記複数の壁面パネルの背面と前記盛土材の間に砕石からなる排水層を設けたことを特徴とする、請求項に記載の補強土壁。 The reinforced soil wall according to claim 2 , wherein a drainage layer made of crushed stone is provided between the back surface of the plurality of wall panels and the embankment material. 管状、棒状、又は紐状のドレーン管を備え、前記ドレーン管を、前記楔状溝内を通し、前記アンカーバーの下部に沿って、前記盛土材内から前記排水層内にわたって配置したことを特徴とする、請求項に記載の補強土壁。 A tubular, rod-shaped, or string-shaped drain pipe is provided, and the drain pipe is arranged through the wedge-shaped groove and along the lower part of the anchor bar from the soil material to the drainage layer. The reinforced soil wall according to claim 3 . 前記アンカーバーの先端が、略C字状、略U字状、又は略V字状のフック端であって、前記壁面パネルの背面に付設した環状金具に前記フック端を係止し、又は前記環状金具に係止した前記フック端の先端を前記アンカーバーに固定して連結したことを特徴とする、請求項乃至のいずれか一項に記載の補強土壁。 The tip of the anchor bar is a hook end having a substantially C-shape, a substantially U-shape, or a substantially V-shape, and the hook end is locked to an annular metal fitting attached to the back surface of the wall surface panel, or the hook end is described. The reinforcing soil wall according to any one of claims 2 to 4 , wherein the tip of the hook end locked to the annular metal fitting is fixed to the anchor bar and connected. 前記アンカーバーの後端を、地山内に打設した鉄筋挿入工の頭部と連結したことを特徴とする、請求項乃至のいずれか一項に記載の補強土壁。 The reinforced soil wall according to any one of claims 2 to 5 , wherein the rear end of the anchor bar is connected to the head of a reinforced material inserted in the ground. 前記壁面パネルが、金属製の網状体からなることを特徴とする、請求項乃至のいずれか一項に記載の補強土壁。 The reinforced soil wall according to any one of claims 2 to 6 , wherein the wall surface panel is made of a metal net.
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Citations (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0357246U (en) * 1989-10-05 1991-05-31
JPH04118419A (en) * 1990-09-10 1992-04-20 Tokyu Constr Co Ltd Structure of reinforced filling body
US5127770A (en) * 1990-10-09 1992-07-07 Atlantic Precast Concrete Inc. Retaining wall assembly utilizing face panels interlocked with tie-back/anchors
JPH07259092A (en) * 1994-03-24 1995-10-09 Kensetsu Kiso Eng Co Ltd Banking anchor
JPH0868199A (en) * 1994-08-29 1996-03-12 Ohbayashi Corp Method for replacing rod in slip form construction method
US5860771A (en) * 1997-04-02 1999-01-19 Atlantic Precast Concrete Inc. Retaining wall/tie-back/anchor assembly
JPH11117335A (en) * 1997-10-14 1999-04-27 Toko Corp Slope-reinforced earth method
JP2002322650A (en) * 2001-04-24 2002-11-08 Kyosei Kiko Kk Reinforced earth structural body
JP2003003475A (en) * 2002-05-20 2003-01-08 Kyokado Eng Co Ltd Retaining wall construction with reinforcing earth
JP2003166244A (en) * 2001-11-30 2003-06-13 Kyokado Eng Co Ltd Reinforced soil structure, reinforcing member, block for reinforced soil and manufacturing method therefor
JP2007016584A (en) * 2005-06-09 2007-01-25 Kyokado Eng Co Ltd Reinforced earth method
JP2012211507A (en) * 2012-07-05 2012-11-01 Yahagi Construction Co Ltd Anchor for banking strengthening soil wall and banking strengthening soil wall structure employing anchor
JP2013091980A (en) * 2011-10-26 2013-05-16 Mitsui Kagaku Sanshi Kk Decorative panel installation method of reinforced soil wall slope face
JP2014005633A (en) * 2012-06-22 2014-01-16 Hirose & Co Ltd Reinforcement soil wall construction method
KR102092648B1 (en) * 2019-06-24 2020-05-15 장명희 PC structure for construction of retaining wall easy to construct
CN112095634A (en) * 2020-09-03 2020-12-18 三峡大学 Anchor rod pile plate retaining wall combination device and construction method

Patent Citations (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0357246U (en) * 1989-10-05 1991-05-31
JPH04118419A (en) * 1990-09-10 1992-04-20 Tokyu Constr Co Ltd Structure of reinforced filling body
US5127770A (en) * 1990-10-09 1992-07-07 Atlantic Precast Concrete Inc. Retaining wall assembly utilizing face panels interlocked with tie-back/anchors
JPH07259092A (en) * 1994-03-24 1995-10-09 Kensetsu Kiso Eng Co Ltd Banking anchor
JPH0868199A (en) * 1994-08-29 1996-03-12 Ohbayashi Corp Method for replacing rod in slip form construction method
US5860771A (en) * 1997-04-02 1999-01-19 Atlantic Precast Concrete Inc. Retaining wall/tie-back/anchor assembly
JPH11117335A (en) * 1997-10-14 1999-04-27 Toko Corp Slope-reinforced earth method
JP2002322650A (en) * 2001-04-24 2002-11-08 Kyosei Kiko Kk Reinforced earth structural body
JP2003166244A (en) * 2001-11-30 2003-06-13 Kyokado Eng Co Ltd Reinforced soil structure, reinforcing member, block for reinforced soil and manufacturing method therefor
JP2003003475A (en) * 2002-05-20 2003-01-08 Kyokado Eng Co Ltd Retaining wall construction with reinforcing earth
JP2007016584A (en) * 2005-06-09 2007-01-25 Kyokado Eng Co Ltd Reinforced earth method
JP2013091980A (en) * 2011-10-26 2013-05-16 Mitsui Kagaku Sanshi Kk Decorative panel installation method of reinforced soil wall slope face
JP2014005633A (en) * 2012-06-22 2014-01-16 Hirose & Co Ltd Reinforcement soil wall construction method
JP2012211507A (en) * 2012-07-05 2012-11-01 Yahagi Construction Co Ltd Anchor for banking strengthening soil wall and banking strengthening soil wall structure employing anchor
KR102092648B1 (en) * 2019-06-24 2020-05-15 장명희 PC structure for construction of retaining wall easy to construct
CN112095634A (en) * 2020-09-03 2020-12-18 三峡大学 Anchor rod pile plate retaining wall combination device and construction method

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