JP2000257071A - Wall face reinforcing member, earth retaining wall structure using it and fill reinforcing method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a wall face reinforcing member lightweight and excellent in execution property and economical efficiency with improved durability, by forming it of a net member connected with the intersection portions of wires in a twisted state and a frame member trimming the periphery of the net member, and forming an L-shape in the side view. SOLUTION: This wall face reinforcing member 1 is formed of a net member 2 made of a rhombic wire netting or a turtleback wire netting of a polyvinyl chloride-coated steel wire or a zinc-plated steel wire and a frame member 3 made of a zinc-plated angle steel. The net member 2 is connected with the cross portions of wires. The frame member 3 trimming the periphery of the net member 2 is folded according to the angle of a slope to be reinforced, an L-shaped bottom side section is set to the length required for the self-supporting of the wall face reinforcing member 1, and the net member 2 of the prescribed size is fitted to only the vertical side section of the L-shape to form the wall face reinforcing member 1. A reinforcing material 4 is inserted in the longitudinal direction of the vertical side section of the frame member 2 as required.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【０００１】[0001]

【発明の属する技術分野】本発明は軟弱地盤等における
壁面補強部材、それを用いた擁壁構造および盛土補強方
法に関するものであって、特に、急勾配盛土の法面の補
強に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wall reinforcing member for soft ground and the like, a retaining wall structure and a method of reinforcing an embankment using the same, and more particularly to reinforcing a slope of a steep embankment.

【０００２】[0002]

【従来の技術】従来、軟弱地盤等における壁面の補強に
は土のうやコンクリート枠等が用いられてきたが、近年
の緑化推進により、特に法面の形成にはこのような部材
が採用され難くなってきている。そこで、丸棒を溶接し
て格子状の金網とし、この溶接金網を法面に配置して補
強するとともに溶接金網の上から植生して緑化すること
が行なわれるようになった。2. Description of the Related Art Conventionally, sandbags, concrete frames, and the like have been used to reinforce wall surfaces in soft ground or the like. However, with the recent promotion of greening, it has become difficult to employ such members particularly in forming slopes. Is coming. Therefore, a round bar is welded to form a lattice-shaped wire mesh, and the welded wire mesh is arranged on a slope to reinforce and to vegetate and green the welded wire mesh.

【０００３】すなわち、盛土は概略２５ｃｍから３０ｃ
ｍ毎に土を積層、圧密して造成するのであるが、盛土自
体の補強のために、合成樹脂製の網目状地盤補強部材が
敷設される。敷設部位は法面から一定の範囲内とされ、
土砂の滑りを考慮した計算によって算出される。同時
に、法面の形成および土圧を支えるために法面補強部材
が設置され、法面補強部材と網目状地盤補強部材を連結
することによって、法面を含む盛土全体を補強する。ま
た、法面補強部材の内側に植生シートを配設し、盛土の
安定と法面の緑化および保護を一体化するのである。そ
して、このような法面補強部材として、特許第２５４５
１９７号や実用新案登録第２５１７１６９号等に開示さ
れているように、金属丸棒を所定の位置にセットして全
体を格子状に溶接し、さらに一般的にはメッキまたは樹
脂コーティング等を行なって製造された溶接金網が使用
されている。That is, the embankment is approximately 25 cm to 30 c
The soil is formed by laminating and consolidating the soil every m. A mesh-like ground reinforcing member made of synthetic resin is laid to reinforce the embankment itself. The laying area is within a certain range from the slope,
It is calculated by calculation taking into account the slip of earth and sand. At the same time, a slope reinforcer is provided to form the slope and support the earth pressure, and the embankment including the slope is reinforced by connecting the slope reinforcer and the mesh-like ground reinforcement. In addition, a vegetation sheet is provided inside the slope reinforcing member to integrate embankment stability and greening and protection of the slope. As such a slope reinforcing member, Japanese Patent No. 2545 is used.
As disclosed in Japanese Patent Application No. 197 and Utility Model Registration No. 2517169, a metal round bar is set at a predetermined position and the whole is welded in a lattice shape, and more generally, plating or resin coating is performed. The manufactured welded wire mesh is used.

【０００４】[0004]

【発明が解決しようとする課題】しかしながら、溶接金
網では、特に溶接部の耐久性を確保するために金属丸棒
をある程度太くする必要がある。一方、丸棒を太くする
と柔軟性がなくなるため土圧に強度で対抗しなければな
らず、一層太い丸棒が必要となるという悪循環を生ず
る。一方、柔軟性を持たせて土圧を分散させるようにす
ると金属丸棒が細くなり、丸棒の変形等で溶接部に過大
な力が作用し、溶接部が破壊されてしまう。実用新案登
録第２５１７１６９号に開示された考案ではこのような
点を考慮してＬ字状断面の縦部を折線状に形成している
が、なお十分とは言い難く、溶接金網は耐久性、施工
性、経済性のいずれかに問題のあるものであった。However, in the case of a welded metal mesh, it is necessary to make the metal round bar thick to some extent, particularly in order to ensure the durability of the welded portion. On the other hand, if the round bar is made thicker, it becomes inflexible, so it is necessary to counter the earth pressure with strength, and a vicious cycle occurs in which a thicker round bar is required. On the other hand, if the earth pressure is dispersed by giving flexibility, the metal round bar becomes thin, and an excessive force acts on the welded portion due to deformation of the round bar or the like, and the welded portion is destroyed. In the invention disclosed in Utility Model Registration No. 2517169, in consideration of such a point, the vertical portion of the L-shaped cross section is formed in a bent line shape, but it is still hard to say that it is sufficient, and the welding wire mesh is durable. There was a problem with either the workability or economy.

【０００５】そこで本発明は、軽量で施工性や経済性に
優れ、かつ、耐久性をも向上させた壁面補強部材、それ
を用いた擁壁構造および盛土補強方法を提供することを
目的とするものである。Accordingly, an object of the present invention is to provide a wall reinforcing member which is lightweight, has excellent workability and economy, and has improved durability, a retaining wall structure using the same, and a method for reinforcing an embankment. Things.

【０００６】[0006]

【課題を解決するための手段】本発明は以上の課題を解
決するためになされたものであり、その要旨は、線材の
交差部分をねじり合わせ状に接続することにより構成し
た網部材と、網部材の周囲を縁取りする枠部材とからな
り、かつ、側面視がＬ字状となされた壁面補強部材であ
って、好ましくは、網部材が亀甲金網であり、枠部材と
ともに折り曲げられて側面視Ｌ字状となされたものであ
る。また、上記のような壁面補強部材を用いて、上下左
右の隣り合う壁面補強部材の枠部材同士、および、壁面
補強部材のＬ字状の底辺部と網目状地盤補強部材とをコ
イル状連結部材を用いて連結してなる擁壁構造であっ
て、好ましくは、壁面補強部材の底辺部に取り付けたコ
イル状連結部材の巻きピッチを網目状地盤補強部材の網
目ピッチと一致させて両者を嵌め合わせ、かつ、コイル
状連結部材に棒状部材を差し込むことによって、壁面補
強部材と網目状地盤補強部材とを連結したものであり、
壁面補強部材のＬ字状の縦辺部内面に、縦辺部を構成す
る網部材より目の細かいメッシュ状シ−トおよび植生シ
ートを配設してなる擁壁構造である。さらに、上記のよ
うな壁面補強部材を用いて、地盤表面に底辺部を配置さ
せて網目状地盤補強部材を連結し、壁面補強部材の縦辺
部を法面としつつ底辺部および網目状地盤補強部材を盛
土中に埋設することで、順次壁面補強部材を重ね合わせ
て盛土を構築する盛土補強方法である。SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and the gist of the present invention is to provide a net member formed by connecting crossing portions of wires in a twisted manner, A wall reinforcing member formed of a frame member that borders the periphery of the member and having an L-shape in side view. Preferably, the net member is a tortoise-mesh net, and is folded together with the frame member to be viewed in side view L It was made into a character shape. Further, by using the above-described wall reinforcing member, the frame members of the vertically and horizontally adjacent wall reinforcing members, and the L-shaped bottom portion of the wall reinforcing member and the mesh-like ground reinforcing member are connected by a coil-shaped connecting member. And preferably, the winding pitch of the coil-shaped connecting member attached to the bottom side of the wall reinforcing member is matched with the mesh pitch of the mesh ground reinforcing member, and the two are fitted together. And, by inserting a rod-shaped member into the coil-shaped connecting member, the wall reinforcing member and the mesh ground reinforcing member are connected,
This is a retaining wall structure in which a mesh-like sheet and a vegetation sheet finer than a mesh member constituting the vertical side portion are disposed on the inner surface of the L-shaped vertical side portion of the wall reinforcing member. Further, using the above-described wall reinforcing member, the bottom portion is disposed on the ground surface, and the mesh-like ground reinforcing member is connected, and the bottom portion and the mesh-like ground reinforcement are formed while the vertical side portion of the wall reinforcing member is used as a slope. This is an embankment reinforcing method in which a member is buried in the embankment so that a wall reinforcing member is sequentially superimposed to construct an embankment.

【０００７】[0007]

【発明の実施の形態】本発明において、壁面補強部材と
は、軟弱地盤の壁面や盛土の法面を補強するものであっ
て、線材の交差部分をねじり合わせ状に接続することに
より構成した網部材と枠部材とで構成される。このよう
な網部材としては、ひし形金網や亀甲金網等が使用で
き、特に亀甲金網とすることが好ましい。亀甲金網は強
度の点でひし形金網より優れており、亀甲金網の強度を
ひし形金網に合わせると亀甲金網の線径を細くすること
ができる一方で、ひし形金網の強度を亀甲金網に合わせ
るにはひし形金網の網目を小さくする必要があるからで
ある。ただし、ひし形金網でも亀甲金網でも線材の交差
部分がねじり合わせ状に接続されているので、溶接に伴
なう耐久性等の問題が解消されるだけでなく、線材の交
差部分が容易に変形でき、柔軟性に優れたものとなって
いる。また、網部材に必要に応じて補強材を追加するこ
とが容易であるという特色も有する。なお、金網に限ら
れず、難燃性の樹脂網を用いることも可能である。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In the present invention, a wall reinforcing member reinforces a wall surface of a soft ground or a slope of an embankment, and is formed by connecting intersections of wires in a twisted manner. It is composed of a member and a frame member. As such a mesh member, a rhombus wire mesh, a turtle wire mesh, or the like can be used, and a turtle wire mesh is particularly preferable. Tortoiseshell wire mesh is superior to diamond wire wire in terms of strength.When the strength of the wireshell wire mesh is matched to that of the diamond wire mesh, the wire diameter of the wireshell wire mesh can be reduced, while to match the strength of the diamond wire mesh to the wireshell wire mesh. This is because it is necessary to reduce the mesh of the wire mesh. However, since the intersections of the wires are connected in a twisted manner in both the rhombic wire mesh and the tortoise wire mesh, not only problems such as durability due to welding are solved, but also the intersections of the wire materials can be easily deformed. , And has excellent flexibility. Another feature is that it is easy to add a reinforcing material to the net member as needed. In addition, it is not limited to a wire net, and it is also possible to use a flame-retardant resin net.

【０００８】また、壁面補強部材は側面視がＬ字状とな
されるが、Ｌ字状の底辺部と縦辺部をそれぞれ別々の網
部材で形成することができるだけでなく、１個の網部材
のみで平面状に形成した後、枠部材とともに折り曲げて
Ｌ字状とすることもできる。このような製造方法は、壁
面補強部材としての強度を備えた溶接金網では不可能で
あり、製造が容易となるだけでなく、枠部材が少なく網
部材が大きくなることによる一層の柔軟性の向上をも図
れることができるものである。なお、Ｌ字状の底辺部と
縦辺部をそれぞれ別々の網部材で形成した場合、縦辺部
のみに網部材を取り付けてもよい。The wall reinforcing member has an L-shape when viewed from the side. Not only can the bottom and vertical sides of the L-shape be formed by separate net members, but also one net member can be used. After being formed into a flat shape only with the frame member, it can be bent together with the frame member to form an L-shape. Such a manufacturing method is not possible with a welded wire mesh having strength as a wall reinforcing member, and not only is it easy to manufacture, but also the flexibility is further improved due to a smaller number of frame members and a larger mesh member. Can also be achieved. When the bottom portion and the vertical side portion of the L-shape are formed of different net members, the net member may be attached only to the vertical side portion.

【０００９】上記した壁面補強部材を用いて擁壁とする
には、擁壁の規模に応じて壁面補強部材を上下左右に連
結するが、コイル状連結部材を用いることにより簡単に
擁壁構造を実現できる。すなわち、隣り合う壁面補強部
材の枠部材同士にまたがってコイルを回転させてやれ
ば、簡単にコイルが挿入され連結が完了するのである。
また、盛土の造成に際しては、盛土自体の補強のために
合成樹脂製の網目状地盤補強部材が敷設されるが、壁面
補強部材と網目状地盤補強部材との連結も同様にコイル
状連結部材で簡単かつ確実に連結できる。In order to form a retaining wall by using the above-described wall reinforcing member, the wall reinforcing member is connected vertically and horizontally according to the scale of the retaining wall. realizable. That is, if the coil is rotated over the frame members of the adjacent wall reinforcing members, the coil is easily inserted and the connection is completed.
When the embankment is formed, a mesh-like ground reinforcing member made of synthetic resin is laid to reinforce the embankment itself, but the connection between the wall surface reinforcing member and the mesh-like ground reinforcing member is also formed by a coil-like connecting member. Easy and reliable connection.

【００１０】ここで、コイル状連結部材の巻きピッチを
網目状地盤補強部材の網目ピッチと一致させれば、壁面
補強部材のＬ字状の底辺部にコイル状連結部材を取り付
けておいて、網目状地盤補強部材を嵌め合わせた後にコ
イル状連結部材に棒状部材を差し込むだけで一層簡単に
連結させることができる。If the winding pitch of the coil-like connecting member is made to match the mesh pitch of the mesh-like ground reinforcing member, the coil-like connecting member is attached to the L-shaped bottom portion of the wall reinforcing member, and the mesh-like connecting member is attached. The connection can be made easier by simply inserting the rod-shaped member into the coil-shaped connection member after fitting the ground reinforcing member.

【００１１】また、網部材の網目によっては壁面補強部
材自体で壁面を緑化することも可能であるが、網目が大
きい場合やより迅速に緑化したい場合は、壁面補強部材
のＬ字状の縦辺部内面にメッシュ状シ−トおよび植生シ
ートを配設してやればよい。この場合、メッシュ状シー
トは網部材より目の細かいものとし、盛土等の地盤の安
定と壁面の緑化および保護を一体化する。Depending on the mesh of the mesh member, the wall surface can be greened by the wall reinforcing member itself. However, when the mesh is large or greening is desired more quickly, the L-shaped vertical side of the wall reinforcing member is used. A mesh sheet and a vegetation sheet may be provided on the inner surface of the part. In this case, the mesh sheet is made finer than the mesh member, and integrates stability of the ground such as embankment and greening and protection of the wall surface.

【００１２】次に、上記した壁面補強部材を用いて盛土
を補強する方法について説明する。まず、造成地の地盤
表面に壁面補強部材のＬ字状の底辺部を配置させて壁面
補強部材を自立させる。また、盛土自体の補強のために
網目状地盤補強部材を所定の範囲で敷設し、上記の方法
等で壁面補強部材と連結する。そして、壁面補強部材の
内側で網目状地盤補強部材の上に概略２５ｃｍから３０
ｃｍ毎に土を積層し、振動ローラ等で転圧する。さら
に、上側に壁面補強部材を連結し、同様の方法を繰り返
すことで補強された盛土を構築するのである。Next, a method of reinforcing the embankment using the above-described wall reinforcing member will be described. First, the L-shaped bottom portion of the wall reinforcing member is disposed on the ground surface of the development ground to make the wall reinforcing member self-supporting. In order to reinforce the embankment itself, a mesh-like ground reinforcing member is laid in a predetermined range, and is connected to the wall surface reinforcing member by the above method or the like. Then, approximately 25 cm to 30 cm on the mesh-like ground reinforcing member inside the wall reinforcing member.
The soil is laminated every cm, and is compacted by a vibrating roller or the like. Further, a wall reinforcing member is connected to the upper side, and a reinforced embankment is constructed by repeating the same method.

【００１３】[0013]

【実施例】以下、本発明の好ましい実施の形態を図面に
より説明する。図１は本発明の壁面補強部材を用いた擁
壁構造を示す斜視図であり、便宜上、一部を省略してい
る。壁面補強部材１は網部材２と枠部材３とからなるも
ので、網部材２としては、図２（Ａ）に示すひし形金網
や図２（Ｂ）に示す亀甲金網が使用される。ひし形金網
は線径が４．０ｍｍで網目Ｌ１が１００ｍｍ（横方向の
対角線長さＬ２は１６０ｍｍ）のもの等を使用でき、こ
の場合、上下方向の１ｍあたりの引っ張り強さは６．２
５トンである。なお、必要に応じて線径を３．２ｍｍと
したものや、網目Ｌ１を８０ｍｍとしたもの等も使用で
きる。また、亀甲金網は線径が４．０ｍｍや３．２ｍｍ
で網目Ｌ１が８０ｍｍや１００ｍｍのもの等を使用でき
る。ここで、同じ線径かつ網目であればひし形金網より
亀甲金網の方が引っ張り強さが大きく、線径４．０ｍｍ
で網目１００ｍｍである亀甲金網の引っ張り強さは１
０．５トンである。これら金網の線径は、柔軟性や経済
性から８ｍｍ以下、好ましくは５ｍｍ以下であり、網目
は、耐久性や土砂のこぼれ落ちの面から１２０ｍｍ以下
とすることがよい。材質的には、塩化ビニル被覆鉄線、
亜鉛めっき鉄線、着色塗装亜鉛めっき鉄線、溶融アルミ
ニウムめっき鉄線、亜鉛アルミニウム合金めっき鉄線、
高強度ＰＶＣ被覆特殊鉄線があり、必要に応じて選択さ
れるが、図１に示す実施例では、亜鉛めっき鉄線のひし
形金網を使用している。DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing a retaining wall structure using the wall reinforcing member of the present invention, and a part thereof is omitted for convenience. The wall reinforcing member 1 is composed of a net member 2 and a frame member 3. As the net member 2, a diamond wire net shown in FIG. 2A or a turtle net shown in FIG. 2B is used. The diamond wire mesh having a wire diameter of 4.0 mm and a mesh L1 of 100 mm (the diagonal length L2 in the horizontal direction is 160 mm) or the like can be used. In this case, the tensile strength per 1 m in the vertical direction is 6.2.
5 tons. If necessary, a wire having a wire diameter of 3.2 mm, a wire having a mesh L1 of 80 mm, or the like can be used. The wire diameter of the turtle shell wire mesh is 4.0 mm or 3.2 mm.
And a mesh L1 of 80 mm or 100 mm can be used. Here, if the wire diameter and mesh are the same, the tensile strength of the turtle wire mesh is larger than that of the diamond wire mesh, and the wire diameter is 4.0 mm.
The tensile strength of the turtle shell wire mesh of 100mm
0.5 tons. The wire diameter of these wire meshes is 8 mm or less, preferably 5 mm or less from the viewpoint of flexibility and economy, and the mesh is preferably 120 mm or less from the viewpoint of durability and spillage of earth and sand. In terms of material, vinyl chloride coated iron wire,
Galvanized iron wire, colored painted galvanized iron wire, hot-dip aluminum plated iron wire, zinc aluminum alloy plated iron wire,
There is a high-strength PVC-coated special iron wire, which is selected as required. In the embodiment shown in FIG. 1, a diamond-shaped wire mesh of galvanized iron wire is used.

【００１４】枠部材３としては、金属丸棒や板材（山形
鋼等の形鋼）、ロープ状のもの等が使用できる。図３に
示す実施例では亜鉛めっきを施した山形鋼を枠部材３に
使用し、壁面補強部材１のＬ字状の縦辺部のみに所定の
大きさの網部材２を取り付けて幅Ｗ＝２０００ｍｍ、Ｌ
字状底辺部Ｄ＝３５０ｍｍ、縦辺部Ｈ＝５６０ｍｍ、Ｌ
字角度θ＝６５°の壁面補強部材１とした。なお、図３
に示す実施例では当初からＬ字状の山形鋼を使用した
が、金属丸棒を所定の角度で折り曲げてＬ字状としても
よく（図１に示す壁面補強部材１）、この場合、折り曲
げ位置は網部材２に対して縦方向であっても横方向であ
ってもよい。すなわち、網部材２の網目の方向にとらわ
れることなく折り曲げできる。ただし、法面を補強する
場合には、法面の角度に合わせて折り曲げ、かつ、Ｌ字
状の底辺部は壁面補強部材１が自立するために必要な長
さを有していることが必要である。また、図３に点線で
示すように、必要に応じて補強材４を挿入することもで
きる。網部材２が線材の交差部分をねじり合わせ状に接
続したものからなるので、線材の間に簡単に挿入するこ
とができるのである。As the frame member 3, a metal round bar, a plate material (shape steel such as angle iron), a rope-shaped member, or the like can be used. In the embodiment shown in FIG. 3, galvanized angle iron is used for the frame member 3, and a net member 2 of a predetermined size is attached only to the L-shaped vertical side of the wall reinforcing member 1, and the width W = 2000mm, L
D-shaped bottom D = 350 mm, vertical H = 560 mm, L
The wall reinforcing member 1 having a character angle θ = 65 ° was used. Note that FIG.
Although an L-shaped angle steel was used from the beginning in the embodiment shown in FIG. 1, a metal round bar may be bent at a predetermined angle to form an L-shape (the wall reinforcing member 1 shown in FIG. 1). May be vertical or horizontal with respect to the net member 2. That is, it can be bent without being bound by the mesh direction of the mesh member 2. However, when the slope is reinforced, it is necessary that the slope is bent in accordance with the angle of the slope, and that the L-shaped bottom has a length necessary for the wall reinforcing member 1 to stand on its own. It is. Further, as shown by a dotted line in FIG. 3, a reinforcing material 4 can be inserted as needed. Since the mesh member 2 is formed by connecting the crossing portions of the wires in a twisted manner, it can be easily inserted between the wires.

【００１５】また、図３に示す実施例ではコイル状連結
部材５により壁面補強材１と網目状地盤補強部材６を連
結している。すなわち、図３（Ａ）および（Ｂ）に示す
ように、壁面補強部材１におけるＬ字状の底辺部の先端
に、網目状地盤補強部材６の穴あきピッチＰ１と同じピ
ッチＰ２を有するコイル状連結部材５を取り付ける。取
り付けは単にねじ込むように挿入すればよい。そして、
図３（Ｂ）のように、ピッチを合わせて網目状地盤補強
部材６をコイル状連結部材５の上からかぶせて嵌め込ん
だ後、図３（Ｃ）に断面図で示すように、棒状部材７を
差し込んで外れ防止とする。したがって、簡単かつ確実
に連結が完了するのである。また、擁壁とするには、図
１に示すように、壁面補強材１同士も連結する（便宜
上、一部分のみ示す）。すなわち、上下左右の隣り合う
枠部材３同士をまたぐようにコイル状連結部材５をねじ
込み挿入するのである。なお、この場合のコイル状連結
部材５の巻ピッチは、連結に必要な強度が確保される程
度のものであればよく、粗いピッチでかまわない。In the embodiment shown in FIG. 3, the coil-shaped connecting member 5 connects the wall reinforcing member 1 and the mesh-like ground reinforcing member 6 to each other. That is, as shown in FIGS. 3 (A) and 3 (B), a coil-like shape having the same pitch P2 as the perforated pitch P1 of the mesh-like ground reinforcing member 6 is provided at the tip of the L-shaped bottom of the wall surface reinforcing member 1. The connecting member 5 is attached. The attachment may be simply inserted by screwing. And
As shown in FIG. 3 (B), the mesh-like ground reinforcing member 6 is fitted over the coil-like connecting member 5 at the same pitch, and then, as shown in a cross-sectional view of FIG. 7 is inserted to prevent detachment. Therefore, the connection is simply and reliably completed. In order to form a retaining wall, as shown in FIG. 1, the wall reinforcing members 1 are also connected to each other (for convenience, only a part is shown). That is, the coil-shaped connecting member 5 is screwed in and inserted so as to straddle the vertically adjacent frame members 3. In this case, the winding pitch of the coil-shaped connecting member 5 may be such that the strength required for the connection is ensured, and may be a coarse pitch.

【００１６】ここで、網目状地盤補強材６としてはポリ
エステル糸を格子状に組み合わせて特殊合成樹脂をコー
ティングしたネット型シートが使用できる。ネット型シ
ートは網目構造のため、軟弱地盤や盛土とのなじみもよ
く、また、上下の土砂が適度に混合して大きな摩擦抵抗
を発揮できるものである。さらに、強度が高く軽量で耐
候性を併せ持つものであるため、省力化、省コスト化が
可能であり、軟弱地盤補強工事や盛土補強工事に最適な
ものである。Here, as the mesh-like ground reinforcing material 6, a net-type sheet coated with a special synthetic resin by combining polyester yarns in a lattice shape can be used. Since the net-type sheet has a mesh structure, it can be easily blended with soft ground or embankment, and the upper and lower earth and sand can be mixed appropriately to exhibit a large frictional resistance. Furthermore, since it has high strength and is lightweight and has weather resistance, labor saving and cost saving are possible, and it is most suitable for soft ground reinforcement work and embankment reinforcement work.

【００１７】次に、本発明の盛土補強方法を図１に基づ
いて説明する。最初に、設置位置を確認して壁面補強部
材１のＬ字状の底辺部を自立させて設置する（最上段の
壁面補強部材１で示される状態）。この際、必要があれ
ば、補強材４を網部材２内に挿入する。また、縦辺部の
内側にメッシュ状シ−トおよび植生シート８を配設し盛
土の安定と法面の緑化を図る（最下段に設置済みの壁面
補強部材１で示される状態）。続いて、下段と左側に既
設の壁面補強部材１の枠部材３にコイル状連結部材５を
ねじ込んで連結する。また、ロール巻きされた網目状地
盤補強材６を法面の基準点より展開して敷設し、コイル
状連結部材５によって壁面補強部材１の底辺部の枠部材
３と連結し、棒状部材７で外れ止めとする（中段に設置
済みの壁面補強部材１で示される状態）。土砂は、網目
状地盤補強材６がめくれないように壁面補強部材１の内
側に敷き詰め、ハンドガイド式の振動ローラや振動コン
パクタ等で転圧することで極力凹凸がないように平らに
仕上げる。そして、仕上げた土砂の上にさらに壁面補強
部材１を設置することを繰り返すことで盛土を構築する
のである。Next, an embankment reinforcing method of the present invention will be described with reference to FIG. First, the installation position is confirmed, and the L-shaped bottom portion of the wall surface reinforcing member 1 is self-standing and installed (the state shown by the uppermost wall surface reinforcing member 1). At this time, if necessary, the reinforcing member 4 is inserted into the net member 2. In addition, a mesh sheet and a vegetation sheet 8 are disposed inside the vertical side to stabilize the embankment and green the slope (as shown by the wall reinforcing member 1 installed at the bottom). Subsequently, the coiled connecting member 5 is screwed and connected to the frame member 3 of the existing wall reinforcing member 1 on the lower stage and the left side. Further, the mesh-like ground reinforcing material 6 wound with a roll is developed and laid from a reference point on a slope, connected to the frame member 3 on the bottom side of the wall surface reinforcing member 1 by the coil-like connecting member 5, and It is set as a stopper (state indicated by the wall reinforcing member 1 installed in the middle stage). The earth and sand is laid inside the wall reinforcing member 1 so that the mesh-like ground reinforcing material 6 is not turned over, and is rolled by a hand-guided vibrating roller, a vibrating compactor, or the like, so as to be finished as flat as possible without irregularities. Then, the embankment is constructed by repeatedly installing the wall reinforcing member 1 on the finished earth and sand.

【００１８】[0018]

【発明の効果】以上説明したように、本発明の壁面補強
部材は柔軟性を有しているため土圧を分散させることが
でき、耐久性を確保しつつ軽量化を図ることができる。
また、溶接を一切行なわないで、線材の折り曲げ加工の
みで製造する事ができるため、予めメッキ加工あるいは
樹脂コーティング加工された金網、線材を利用する事が
可能となり、経済的なものとすることができる。さら
に、折り曲げ加工が簡単にできるので、盛土の法面を所
定の角度で形成でき、法面の維持ができる。また、本発
明の擁壁構造は壁面補強部材を網目状地盤補強部材と連
結することで優れた盛土の崩れ防止効果を発揮でき、コ
イル状連結部材を用いることによって簡単で確実な連結
が可能となり、かつ、枠部材等の余分な折り曲げ加工が
不要となって経済的なものとなる。As described above, since the wall reinforcing member of the present invention has flexibility, the earth pressure can be dispersed, and the weight can be reduced while ensuring the durability.
In addition, since it is possible to manufacture by wire bending only without performing any welding, it is possible to use wire mesh and wire rods that have been plated or resin-coated in advance, making it economical. it can. Further, since the bending process can be easily performed, the slope of the embankment can be formed at a predetermined angle, and the slope can be maintained. In addition, the retaining wall structure of the present invention can exhibit an excellent embankment prevention effect by connecting the wall reinforcing member to the mesh-like ground reinforcing member, and the coil-like connecting member enables simple and reliable connection. In addition, unnecessary bending of the frame member or the like is not required, which is economical.

【図面の簡単な説明】[Brief description of the drawings]

【図１】図１は本発明の壁面補強部材を用いた擁壁構造
を示す斜視図である。FIG. 1 is a perspective view showing a retaining wall structure using a wall reinforcing member of the present invention.

【図２】図２は本発明の壁面補強部材に使用する網部材
の例を示す正面図である。FIG. 2 is a front view showing an example of a net member used for a wall reinforcing member of the present invention.

【図３】図３は壁面補強部材と網目状地盤補強部材との
連結を示す図である。FIG. 3 is a view showing connection between a wall reinforcing member and a mesh ground reinforcing member.

【符号の説明】[Explanation of symbols]

１‥壁面補強部材 ２‥網部材 ３‥枠部材 ４‥補強材 ５‥コイル状連結部材 ６‥網目状地盤補強部材 ７‥棒状部材 ８‥メッシュ状シ−トおよび植生シート 1 Wall Reinforcement Member 2 Net Mesh 3 Frame Member 4 Reinforcing Material 5 Coiled Connection Member 6 Meshed Ground Reinforcement Member 7 Rod Member 8 Mesh Sheet and Vegetation Sheet

Claims (6)

【特許請求の範囲】[Claims] 【請求項１】 壁面の表層部に設置して地盤を補強する
ための壁面補強部材であって、線材の交差部分をねじり
合わせ状に接続することにより構成した網部材と、前記
網部材の周囲を縁取りする枠部材とからなり、かつ、側
面視がＬ字状となされていることを特徴とする壁面補強
部材。1. A wall reinforcing member for reinforcing a ground by being installed on a surface layer of a wall surface, wherein a mesh member formed by connecting intersections of wires in a twisted manner, and a periphery of the mesh member A wall reinforcing member comprising a frame member for framing the shape, and having an L-shape in side view. 【請求項２】 前記網部材が線材の交差部分を複数回ね
じり合わせた亀甲金網であり、亀甲金網が枠部材ととも
に折り曲げられて側面視Ｌ字状となされていることを特
徴とする請求項１に記載の壁面補強部材。2. The mesh member according to claim 1, wherein the mesh member is a torsion wire mesh formed by twisting a crossing portion of a wire a plurality of times, and the tortoise wire mesh is bent together with a frame member to form an L shape in a side view. 4. A wall reinforcing member according to claim 1. 【請求項３】 請求項１または２に記載の壁面補強部材
を用いた擁壁構造であって、上下左右の隣り合う壁面補
強部材の枠部材同士、および、壁面補強部材のＬ字状の
底辺部と網目状地盤補強部材とを、コイル状連結部材を
用いて連結してなることを特徴とする擁壁構造。3. A retaining wall structure using the wall reinforcing member according to claim 1 or 2, wherein the frame members of the vertically and horizontally adjacent wall reinforcing members and the L-shaped bottom of the wall reinforcing member. A retaining wall structure comprising a portion and a mesh-like ground reinforcing member connected by using a coil-shaped connecting member. 【請求項４】 壁面補強部材のＬ字状の底辺部に取り付
けたコイル状連結部材の巻きピッチを網目状地盤補強部
材の網目ピッチと一致させることにより網目状地盤補強
部材をコイル状連結部材に嵌め合わせ、かつ、前記コイ
ル状連結部材に棒状部材を差し込むことによって、壁面
補強部材と網目状地盤補強部材とを連結してなることを
特徴とする請求項３に記載の擁壁構造。4. A mesh-like ground reinforcing member is formed as a coil-like connecting member by matching a winding pitch of a coil-like connecting member attached to an L-shaped bottom of a wall reinforcing member with a mesh pitch of a mesh-like ground reinforcing member. 4. The retaining wall structure according to claim 3, wherein the wall reinforcing member and the mesh-like ground reinforcing member are connected by fitting and inserting a rod-shaped member into the coil-shaped connecting member. 5. 【請求項５】 壁面補強部材のＬ字状の縦辺部内面に、
前記縦辺部を構成している網部材より目の細かいメッシ
ュ状シ−トおよび植生シートを配設してなることを特徴
とする請求項３または４に記載の擁壁構造。5. An L-shaped vertical side inner surface of the wall reinforcing member,
The retaining wall structure according to claim 3, wherein a mesh-like sheet and a vegetation sheet that are finer than a mesh member constituting the vertical side portion are provided. 【請求項６】 請求項１または２に記載の壁面補強部材
を用いた盛土補強方法であって、地盤表面に壁面補強部
材のＬ字状の底辺部を配置させるとともに網目状地盤補
強部材を連結し、前記壁面補強部材のＬ字状の縦辺部を
法面としつつ、底辺部および網目状地盤補強部材を盛土
中に埋設することで、順次壁面補強部材を重ね合わせて
盛土を構築することを特徴とする盛土補強方法。6. An embankment reinforcing method using the wall reinforcing member according to claim 1, wherein an L-shaped bottom portion of the wall reinforcing member is arranged on the ground surface and the mesh ground reinforcing member is connected. Then, by embedding the bottom portion and the mesh-like ground reinforcing member in the embankment while using the L-shaped vertical side portion of the wall surface reinforcing member as a slope, sequentially embedding the wall surface reinforcing member to construct an embankment. An embankment reinforcing method characterized by the following.