JP2002256563A - Slope face stabilizing construction method and slope face stabilizing structure - Google Patents
Slope face stabilizing construction method and slope face stabilizing structureInfo
- Publication number
- JP2002256563A JP2002256563A JP2001281812A JP2001281812A JP2002256563A JP 2002256563 A JP2002256563 A JP 2002256563A JP 2001281812 A JP2001281812 A JP 2001281812A JP 2001281812 A JP2001281812 A JP 2001281812A JP 2002256563 A JP2002256563 A JP 2002256563A
- Authority
- JP
- Japan
- Prior art keywords
- reinforcing rib
- pressing member
- slope
- rib portion
- central
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
- Biological Depolymerization Polymers (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、盛土、切土、自然
斜面等の法面を補強することによって法面の安定化を図
る工法及び構造に関し、法面に設置した押圧部材を、こ
れを貫通して地山に挿入したアンカーやロックボルト等
のアンカー材により法面に定着することにより地山を安
定化させるものに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and a structure for stabilizing a slope by reinforcing a slope such as an embankment, a cut, a natural slope, and the like. The present invention relates to a method of stabilizing a ground by fixing to a slope with an anchor material such as an anchor or a rock bolt inserted through the ground.
【０００２】[0002]
【従来の技術】盛土、切土、自然斜面等の法面を補強す
る工法として、たとえば十字状のコンクリートブロック
をアンカーにより法面に定着する工法について、近年多
くの提案がなされ、現実にも多く採用されている。ま
た、コンクリートブロックでは重量的に重いことに鑑
み、特開平１１−１５８８７７号公報には、施工性を改
善するために鋳鉄製の軽量化した押圧部材が提案されて
いる。2. Description of the Related Art As a method of reinforcing a slope such as embankment, cut, natural slope, etc., for example, a method of fixing a cross-shaped concrete block to a slope with an anchor has been proposed in recent years, and many methods have actually been proposed. Has been adopted. Also, in view of the fact that concrete blocks are heavy in weight, Japanese Patent Application Laid-Open No. H11-158877 proposes a lightweight pressing member made of cast iron in order to improve workability.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、この鋳
鉄製の押圧部材を用いると、時の経過により鋳鉄自体に
赤さびが生じるため、意匠的に好ましくない。However, when this cast iron pressing member is used, red rust is generated on the cast iron itself with the passage of time, which is not preferable in design.
【０００４】他方、近年の環境に対する考えの変化に伴
って、法面を可能な限り緑化したいとの要望もある。[0004] On the other hand, there has been a demand for greening the slope as much as possible with recent changes in the way of thinking about the environment.
【０００５】そこで、本発明の課題は、人工的な感覚を
与えがちな押圧部材を隠し、しかも保護層の形成材料の
流亡や崩壊がない法面安定化工法及びその構造を提供す
ることにある。SUMMARY OF THE INVENTION It is an object of the present invention to provide a slope stabilization method and a structure for hiding a pressing member which tends to give an artificial sensation, and preventing a material for forming a protective layer from flowing or collapsing. .
【０００６】[0006]
【課題を解決するための手段】上記課題を解決した本発
明は、次記のとおりである。 ＜請求項１記載の発明＞法面に設置した押圧部材を、そ
の中央部にアンカー材を貫通して地山に挿入しその頭部
の固定を図ることにより法面に定着させ地山を安定化さ
せる工法であって、前記押圧部材は、前記法面に対して
面する底板部と、少なくとも周辺において形成された手
前側に張り出す補強リブ部とが一体化されて形成され、
前記押圧部材の周辺部または全体、ならびに前記押圧部
材外の法面上を覆い隠して透水性の保護層を形成するこ
とを特徴とする法面安定化工法。The present invention which has solved the above-mentioned problems is as follows. <Invention according to claim 1> The pressing member installed on the slope is fixed to the slope by inserting the anchor material into the ground at the center thereof and fixing the head thereof to stabilize the ground. The pressing member, the pressing member is formed integrally with a bottom plate portion facing the slope, and a reinforcing rib portion projecting toward the near side formed at least in the periphery,
A slope stabilization method comprising forming a water-permeable protective layer by covering and surrounding a peripheral portion or the entirety of the pressing member and a slope outside the pressing member.
【０００７】（作用効果）法面に設置した押圧部材を、
これを貫通して地山に挿入したアンカー材により法面に
定着することにより地山を安定化させる。ここにおい
て、本発明では、特に押圧部材として、法面に対して面
する底板部と、少なくとも周辺において形成された手前
側に張り出す補強リブ部とが一体化されて形成されたも
のを用いるので、コンクリートブロックの場合に比較し
て軽量なものとなり、輸送の負担が少なくなり、設置に
際しての施工性を改善できる。(Function and Effect) The pressing member installed on the slope is
The ground is stabilized by being fixed to the slope by the anchor material inserted through the ground and inserted into the ground. Here, in the present invention, particularly, as the pressing member, a bottom plate portion facing the slope and a reinforcing rib portion formed at least in the periphery and projecting toward the near side are used as being integrally formed. As compared with the case of a concrete block, the weight is lighter, the burden of transportation is reduced, and the workability at the time of installation can be improved.
【０００８】本発明では、前記押圧部材の周辺部または
全体を覆い隠して、法面上の対象とする領域に保護層を
形成する。したがって、押圧部材の存在が目立たないあ
るいは全体を覆い隠す場合にはその存在を隠すことがで
きる。また、保護層は透水性であるので、植生が可能と
なり、その植生による押圧部材の存在が目立たないある
いは全体を覆い隠すことができる。In the present invention, a protective layer is formed in a target area on the slope by covering the peripheral portion or the entirety of the pressing member. Therefore, when the presence of the pressing member is inconspicuous or covers the whole, it can be hidden. Further, since the protective layer is water-permeable, vegetation is possible, and the presence of the pressing member due to the vegetation is inconspicuous or the whole can be covered.
【０００９】しかも、特徴的には、補強リブ部は手前側
に張り出すものであるので、これが保護層の形成材料の
壁となるので、保護層の形成材料の流亡が防止される。
これに対して、コンクリートブロックを用いる限り、仮
にその上面を覆うように保護層を形成しても、降雨時な
どにおいて、コンクリートブロックの上面が滑り面とな
って簡単に流亡することは容易に推測できよう。補強リ
ブ部を板状とする場合においてその効果が顕著となる。In addition, characteristically, since the reinforcing ribs protrude toward the near side, they serve as walls of the material for forming the protective layer, so that the material for forming the protective layer is prevented from flowing out.
On the other hand, as long as a concrete block is used, even if a protective layer is formed so as to cover the upper surface, it is easily supposed that the upper surface of the concrete block becomes a sliding surface and easily runs off during rainfall. I can do it. The effect becomes remarkable when the reinforcing rib portion is formed in a plate shape.
【００１０】また、コンクリートブロックを用いる場合
には、保護層の流亡を防止するためには、コンクリート
ブロックの上面を厚く被覆する必要があるが、前述のよ
うに補強リブ部の存在が保護層形成材料に対して優れた
流亡防止効果を示すので、保護層の厚みを薄くできる。
したがって、保護層形成材料の使用量が少なくなるの
で、経済的である。When a concrete block is used, it is necessary to cover the upper surface of the concrete block thickly in order to prevent the protective layer from flowing away. Since the material has an excellent effect of preventing runoff, the thickness of the protective layer can be reduced.
Therefore, the amount of the material for forming the protective layer is reduced, which is economical.
【００１１】他方、押圧部材の周辺部または全体は保護
層により覆い隠されるので、押圧部材として鋳鉄などの
金属製とする場合には、保護層が防錆効果を示し、好適
である。On the other hand, since the peripheral portion or the entirety of the pressing member is covered and covered by the protective layer, when the pressing member is made of metal such as cast iron, the protective layer exhibits a rust-preventive effect, which is preferable.
【００１２】＜請求項２記載の発明＞法面に設置した押
圧部材を、その中央部にアンカー材を貫通して地山に挿
入しその頭部の固定を図ることにより法面に定着させ地
山を安定化させる工法であって、前記押圧部材は、前記
法面に対して面する底板部と、少なくとも周辺において
形成された手前側に張り出す補強リブ部とが一体化され
て形成され、前記押圧部材の周辺部または全体、ならび
に前記押圧部材外の法面上を覆い隠して、透水性の客土
層及びその上の表面層とを形成し、植生を図ることを特
徴とする法面安定化工法。<Invention according to claim 2> The pressing member installed on the slope is fixed to the slope by inserting an anchor material into the center of the pressing member and inserting it into the ground to fix the head thereof. A method of stabilizing a mountain, wherein the pressing member is formed by integrating a bottom plate portion facing the slope surface and a reinforcing rib portion projecting toward the near side formed at least in the periphery, Slope characterized by covering and surrounding the peripheral portion or the entirety of the pressing member, and the slope outside the pressing member to form a water-permeable soil layer and a surface layer thereon, thereby achieving vegetation. Stabilization method.
【００１３】（作用効果）上記の作用効果を奏するか
ら、それぞれ透水性の客土層及び表面層の形成により、
押圧部材の設置領域においても確実に緑化を図ることが
でき、押圧部材が目立たないあるいは植生に隠れて押圧
部材の存在が判らないようになる。(Function and Effect) Since the above-described functions and effects are exhibited, the formation of the permeable soil layer and the surface layer, respectively,
Greening can be ensured even in the installation region of the pressing member, and the pressing member is inconspicuous or hidden by vegetation so that the presence of the pressing member cannot be recognized.
【００１４】＜請求項３記載の発明＞底板部に裏面に抜
ける水の透過孔を形成した請求項２記載の法面安定化工
法。<Invention according to claim 3> The slope stabilization method according to claim 2, wherein a water permeation hole which penetrates to the back surface is formed in the bottom plate portion.
【００１５】（作用効果）底板部に裏面に抜ける水の透
過孔を形成することで、植生が枯れることを防止でき
る。(Function and Effect) By forming a water-permeation hole which penetrates to the back surface in the bottom plate portion, the vegetation can be prevented from withering.
【００１６】＜請求項４記載の発明＞客土層は透水係数
が１０-5ｃｍ／秒以上のソイルセメントであり、表面層
が有機質の生育基盤層である請求項２または３記載の法
面安定化工法。<Invention according to claim 4> The slope according to claim 2 or 3, wherein the soil layer is a soil cement having a water permeability of 10 -5 cm / sec or more, and the surface layer is an organic growth base layer. Stabilization method.
【００１７】（作用効果）客土層の形成に際して、ソイ
ルセメントを使用すると、粒子の分散が実質的に防止で
き、流亡が殆どなく、しかも透水係数が１０-5ｃｍ／秒
以上のソイルセメントであり、表面層が有機質の生育基
盤層であると、植物の生育条件として十分なものとな
る。(Effects) In the formation of the soil layer, the use of soil cement can substantially prevent the dispersion of particles, hardly causes run-off, and has a water permeability of 10 -5 cm / sec or more. Yes, if the surface layer is an organic growth base layer, the growth conditions of the plant will be sufficient.
【００１８】＜請求項５記載の発明＞客土層及び表面層
の少なくとも一方に連続繊維が混入されている請求項２
または４記載の法面安定化工法。<Invention of claim 5> A continuous fiber is mixed in at least one of the soil layer and the surface layer.
Or the slope stabilization method according to 4.
【００１９】（作用効果）客土層及び表面層の少なくと
も一方に連続繊維が混入されていると、流亡防止効果が
高いものとなる。すなわち、客土が連続繊維に付着して
摩擦力により保持されるので客土の流亡が防止される。(Effects) If continuous fibers are mixed in at least one of the soil layer and the surface layer, the effect of preventing runoff becomes high. That is, since the soil is attached to the continuous fibers and held by the frictional force, the runoff of the soil is prevented.
【００２０】＜請求項６記載の発明＞押圧部材の中央部
に環状の中央補強リブ部と、中心回りに実質的に均等な
少なくとも４つの放射方向に沿って前記中央補強リブ部
から連続する放射補強リブ部とが底板部に対して一体的
に形成され、前記中央補強リブ部内はアンカーの頭部の
固定部であり、前記放射補強リブ部と前記中央補強リブ
部とは実質的に無端状の環状壁を形成しており、この環
状壁で囲まれた上方開放の空間内に保護層を形成する請
求項１〜５のいずれか１項に記載の法面安定化工法。<Invention of Claim 6> An annular central reinforcing rib portion is provided at a central portion of the pressing member, and radiation is continuously emitted from the central reinforcing rib portion along at least four radial directions substantially uniform around the center. A reinforcing rib portion is formed integrally with the bottom plate portion, the inside of the central reinforcing rib portion is a fixing portion of an anchor head, and the radiation reinforcing rib portion and the central reinforcing rib portion are substantially endless. The slope stabilization method according to any one of claims 1 to 5, wherein an annular wall is formed, and a protective layer is formed in a space open upward surrounded by the annular wall.
【００２１】（作用効果）押圧部材の中央部に環状の中
央補強リブ部を形成するとともに、中心回りに実質的に
均等な少なくとも４つの放射方向に沿って前記中央補強
リブ部から連続する放射補強リブ部を形成することで、
大きなアンカー荷重に耐え得る耐力をもった押圧部材と
なる。この場合において、放射補強リブ部と中央補強リ
ブ部とは実質的に無端状の環状壁を形成しており、この
環状壁で囲まれた上方開放の空間内に保護層を形成する
ことで、その保護層の流亡を防止できる。(Function and Effect) An annular central reinforcing rib is formed at the center of the pressing member, and the radial reinforcing is continuous from the central reinforcing rib along at least four radial directions substantially uniform around the center. By forming the rib part,
The pressing member has a proof stress capable of withstanding a large anchor load. In this case, the radiation reinforcing rib portion and the central reinforcing rib portion form a substantially endless annular wall, and a protective layer is formed in an upper open space surrounded by the annular wall, The runoff of the protective layer can be prevented.
【００２２】＜請求項７記載の発明＞押圧部材の中央部
に環状の中央補強リブ部と、中心回りに実質的に均等な
少なくとも４つの放射方向に沿って前記中央補強リブ部
から連続する放射補強リブ部とが底板部に対して一体的
に形成され、前記中央補強リブ部内はアンカーの頭部の
固定部であり、前記放射補強リブ部は前記中央補強リブ
部との交差部から放射方向に、実質的に連続して張り出
し高さを順次低くしながら端に向かって延在している請
求項１〜６のいずれか１項に記載の法面安定化工法。<Invention of Claim 7> An annular central reinforcing rib portion is provided at the center of the pressing member, and radiation is continuously emitted from the central reinforcing rib along at least four radial directions substantially uniform around the center. A reinforcing rib portion is integrally formed with the bottom plate portion, the inside of the central reinforcing rib portion is a fixing portion of a head of the anchor, and the radial reinforcing rib portion extends in a radial direction from an intersection with the central reinforcing rib portion. The slope stabilization method according to any one of claims 1 to 6, wherein the method extends substantially toward the end while decreasing the overhang height substantially continuously.
【００２３】（作用効果）放射補強リブ部は中央補強リ
ブ部との交差部から放射方向に、実質的に連続して張り
出し高さを順次低くしながら端に向かって延在している
と、押圧部材外に形成した保護層と放射補強リブ部に形
成した保護層との連続化または結合を図ることができ
る。(Function and Effect) When the radial reinforcing rib portion extends substantially continuously from the intersection with the central reinforcing rib portion in the radial direction, and extends toward the end while gradually decreasing the overhang height, The protection layer formed outside the pressing member and the protection layer formed on the radiation reinforcing rib portion can be continuous or combined.
【００２４】＜請求項８記載の発明＞法面に設置した押
圧部材を、その中央部にアンカー材を貫通して地山に挿
入しその頭部の固定を図ることにより法面に定着させ地
山を安定化させる工法であって、前記押圧部材は、前記
法面に対して面する底板部と、この底板部に対して一体
的に手前側に張り出して形成された、前記押圧部材の中
央部に位置する環状の中央補強リブ部と、中心回りに実
質的に均等な少なくとも４つの放射方向に沿って前記中
央補強リブ部から実質的に連続して張り出し高さを順次
低くしながら端に向かって延在する放射補強リブ部とを
有し、前記中央補強リブ部内はアンカーの頭部の固定部
であり、前記押圧部材の中央補強リブ部、及び前記放射
補強リブ部のうち中央補強リブ部側部分を残して、残余
の部分のみと、周囲の法面とを覆い隠して透水性の保護
層を形成することを特徴とする法面安定化工法。<Invention according to claim 8> The pressing member installed on the slope is fixed to the slope by inserting an anchor material into the center of the pressing member and inserting it into the ground to fix the head thereof. A method for stabilizing a mountain, wherein the pressing member has a bottom plate portion facing the slope and a central portion of the pressing member formed so as to protrude integrally with the bottom plate portion toward the near side. An annular central reinforcing rib portion located at the portion and substantially continuously extending from the central reinforcing rib portion along at least four radial directions substantially uniform about the center at the ends while sequentially reducing the overhang height. A radial reinforcing rib portion extending toward the center, wherein the inside of the central reinforcing rib portion is a fixing portion of a head of an anchor, and a central reinforcing rib portion of the pressing member and a central reinforcing rib of the radial reinforcing rib portion. Part, and leave only the remaining part Slope stabilization method which is characterized in that obscure the law surface to form a water-permeable protective layer.
【００２５】（作用効果）押圧部材の中央補強リブ部、
及び放射補強リブ部のうち中央補強リブ部側部分を残し
て、残余の部分のみと、周囲の法面とを覆い隠して透水
性の保護層を形成することでも、植生及び緑化により、
押圧部材は目立たなくなる。(Function and Effect) A central reinforcing rib portion of the pressing member,
Also, by leaving the central reinforcing rib part side part of the radiation reinforcing rib part, and also forming a water-permeable protective layer by covering only the remaining part and the surrounding slope, by vegetation and greening,
The pressing member becomes less noticeable.
【００２６】＜請求項９記載の発明＞法面に複数隣接配
置された押圧部材を、それぞれの中央部にアンカー材を
貫通して地山に挿入しその頭部の固定を図ることにより
法面に定着させ地山を安定化させる工法であって、前記
押圧部材は、前記法面に対して面する底板部と、少なく
とも周辺において形成された手前側に張り出す補強リブ
部とが一体化されて形成され、前記隣接配置された押圧
部材相互は、連結部材により連結され、各前記押圧部材
の周辺部または全体、ならびに前記押圧部材外の法面上
を覆い隠して透水性の保護層を形成することを特徴とす
る法面安定化工法。<Invention according to claim 9> A plurality of pressing members arranged adjacent to the slope are inserted into the ground through an anchor material at the center of each, and the head is fixed to fix the head. The pressing member is integrated with a bottom plate portion facing the slope surface and a reinforcing rib portion formed at least in the periphery and extending toward the near side. The pressing members arranged adjacent to each other are connected to each other by a connecting member, and cover the peripheral portion or the whole of each pressing member, as well as the slope outside the pressing member to form a water-permeable protective layer. Slope stabilization method characterized by doing.
【００２７】（作用効果）押圧部材相互を連結部材によ
り連結することにより、仮に何らかの原因で一つの押圧
部材の地山に対する定着が不安定になったとしても、他
の押圧部材が地山に対して定着が図られている限り、そ
の不安定性はなく、全体として安定した押圧部材群によ
る地山の安定支持を図ることができる。また、連結を行
うことにより、あるアンカーが抜けた場合、当該押圧部
材の落下は、他の押圧部材がアンカーにより地山に対し
て定着が図られているので、防止される。(Function / Effect) By connecting the pressing members to each other by the connecting member, even if the fixing of one pressing member to the ground becomes unstable for some reason, the other pressing members are not connected to the ground. As long as the fixing is achieved, the instability does not occur, and the ground can be stably supported by the pressing member group that is stable as a whole. Further, by performing the connection, when a certain anchor comes off, the falling of the pressing member is prevented because the other pressing member is fixed to the ground by the anchor.
【００２８】＜請求項１０記載の発明＞法面に設置した
押圧部材を、その中央部にアンカー材を貫通して地山に
挿入しその頭部の固定を図ることにより法面に定着させ
地山を安定化させる工法であって、前記押圧部材は、前
記法面に対して面する底板部と、中央部に位置する環状
の中央補強リブ部と、中心回りに実質的に均等な少なく
とも４つの放射方向に沿って前記中央補強リブ部から連
続する放射補強リブ部とを有し、前記中央補強リブ部及
び放射補強リブ部は前記底板部に対して一体的に形成さ
れ、前記中央補強リブ部内はアンカーの頭部の固定部で
あり、前記中央補強リブ部と前記放射補強リブ部との交
差部は実質的に同一の張り出し高さＨとされ、前記放射
補強リブ部は前記中央補強リブ部との交差部から放射方
向に、実質的に連続して張り出し高さを順次低くしなが
ら端に向かって延在長さＬｆをもって延在し、前記張り
出し高さＨと前記延在長さＬｆとの関係が、図１９の領
域Ｚ内にあり、各前記押圧部材の周辺部または全体、な
らびに前記押圧部材外の法面上を覆い隠して透水性の保
護層を形成することを特徴とする法面安定化工法。<Invention according to claim 10> The pressing member installed on the slope is inserted into the ground through an anchor material at the center thereof and fixed to the slope by fixing the head thereof to fix the ground. A method for stabilizing a mountain, wherein the pressing member includes a bottom plate portion facing the slope surface, an annular central reinforcing rib portion located at a central portion, and at least four substantially uniform central portions. A radial reinforcing rib portion continuous from the central reinforcing rib portion along two radial directions, wherein the central reinforcing rib portion and the radial reinforcing rib portion are formed integrally with the bottom plate portion, and the central reinforcing rib The inside portion is a fixing portion of the head of the anchor, and the intersection of the central reinforcing rib portion and the radiation reinforcing rib portion has substantially the same overhang height H, and the radiation reinforcing rib portion is the central reinforcing rib. Substantially radially from the intersection with the 19 and extends toward the end with the extension length Lf being sequentially reduced, and the relationship between the extension height H and the extension length Lf is within a region Z in FIG. A slope stabilization method comprising forming a water-permeable protective layer by covering a peripheral portion or the entirety of each of the pressing members and a slope outside the pressing members.
【００２９】（作用効果）前記張り出し高さＨと前記延
在長さＬｆとの関係が、図１９の領域Ｚ内にあると、後
述するように、大きなアンカー荷重に耐え得る耐力を発
揮しながら、軽量でかつ補強リブ部の張り出し高さを低
くすることができる。補強リブ部の張り出し高さが低い
ことは、植生による押圧部材を隠すことにきわめて有効
である。(Effects) When the relationship between the overhang height H and the extension length Lf is within the region Z in FIG. 19, as will be described later, while exhibiting a proof strength capable of withstanding a large anchor load. In addition, it is lightweight and the height of the protrusion of the reinforcing rib portion can be reduced. The low overhang height of the reinforcing ribs is very effective in hiding the pressing member by vegetation.
【００３０】＜請求項１１記載の発明＞法面に設置した
押圧部材が、これを貫通して地山に挿入したアンカー材
により法面に定着された構造であって、前記押圧部材
は、前記法面に対して面する底板部と、少なくとも周辺
において形成された手前側に張り出す補強リブ部とが一
体化されて形成され、前記押圧部材の周辺部または全体
を覆い隠して、法面上の対象とする領域に保護層が形成
されていることを特徴とする法面安定化構造。<Invention according to claim 11> A structure in which a pressing member provided on a slope is fixed to the slope by an anchor material penetrating therethrough and inserted into the ground, wherein the pressing member is A bottom plate portion facing the slope and a reinforcing rib portion projecting toward the front formed at least in the periphery are integrally formed, and cover and surround the peripheral portion or the entirety of the pressing member. A slope stabilizing structure, wherein a protective layer is formed in an area to be treated.
【００３１】（作用効果）請求項１と同様の作用効果を
奏する。(Function and Effect) The same function and effect as those of the first aspect are obtained.
【００３２】[0032]
【発明の実施の形態】以下、本発明の実施の形態を詳説
する。 ＜第１の実施の形態＞図１に第１の実施の形態の断面図
を示した。すなわち、法面Ｇに設置した押圧部材１０
を、これを貫通して地山に挿入したアンカー材１により
法面Ｇに定着することにより地山の安定化を図ってい
る。そして、押圧部材１０，１０の周辺部を覆い隠すよ
うに、法面Ｇ上に保護層４を形成したものである。アン
カー材１は、モルタル注入などのアンカー部２により固
定され、定着座３との間に緊張力を作用させた状態で、
押圧部材１０を地山に定着させてある。Embodiments of the present invention will be described below in detail. <First Embodiment> FIG. 1 is a sectional view of a first embodiment. That is, the pressing member 10 installed on the slope G
Is fixed to the slope G by the anchor material 1 that penetrates the ground and is inserted into the ground, thereby stabilizing the ground. The protective layer 4 is formed on the slope G so as to cover the periphery of the pressing members 10 and 10. The anchor material 1 is fixed by an anchor portion 2 such as mortar injection, and a tension is applied between the anchor member 1 and the anchoring seat 3.
The pressing member 10 is fixed to the ground.
【００３３】この際に使用する押圧部材１０の第１の実
施の形態については、さらに図２〜４に詳しく示した。
押圧部材１０は、鋳鉄製で鋳込みにより一体的に形成し
たものであり、法面Ｇに直接または下地材料を介して面
するほぼ方形の底板部１１と、この底板部１１のみでは
剛性が不十分なため、アンカー緊張力を与える際の耐力
を高めるために補強し、押圧部材１０全体として十分な
剛性を確保するための、中央部に位置する中央補強リブ
部１２…と、その周囲に張り出す周囲部に形成された周
囲補強リブ部１３…とを備える。The first embodiment of the pressing member 10 used at this time is shown in more detail in FIGS.
The pressing member 10 is made of cast iron and is integrally formed by casting. The pressing member 10 has a substantially rectangular bottom plate portion 11 that faces the slope G directly or via a base material, and the rigidity of the bottom plate portion 11 alone is insufficient. Therefore, the reinforcing member 12 is reinforced in order to increase the strength at the time of applying the anchor tension, and the central reinforcing rib portion 12 located at the central portion for securing sufficient rigidity as the entire pressing member 10 and protrudes around the central reinforcing rib portion 12. Peripheral reinforcing ribs 13 formed on the peripheral portion.
【００３４】補強リブ部１２，１３…は、中央補強リブ
部１２…は方形をなして環状に手前（法面から遠ざかる
方向）に張出し、周囲補強リブ部１３…は中央補強リブ
部１２の一辺を共通する方形の他の三辺を構成する。し
たがって、隣接する三辺の周囲補強リブ部１３…と中央
補強リブ部１２の一辺とは、無端状の環状壁を形成して
いる。The central reinforcing ribs 12 are formed in a rectangular shape and project annularly toward the front (in a direction away from the slope), and the peripheral reinforcing ribs 13 are arranged on one side of the central reinforcing rib 12. Constitute the other three sides of the common square. Therefore, the peripheral reinforcing ribs 13 on three adjacent sides and one side of the central reinforcing rib 12 form an endless annular wall.
【００３５】また、アンカーの緊張力が直接的に作用す
る底板部１１の中央部１１ａは周囲部より厚肉としてあ
る。この中央部１１ａには、アンカー材１を挿通するア
ンカー材貫通孔１９が形成されている。The central portion 11a of the bottom plate portion 11 on which the tension of the anchor directly acts is thicker than the peripheral portion. An anchor material through hole 19 through which the anchor material 1 is inserted is formed in the central portion 11a.
【００３６】他方、中央補強リブ部１２…で囲まれる底
板部分の中央、ならびにその一辺と周囲補強リブ部１３
…とで囲まれる４箇所の底板部分の周辺部分には、水透
過孔１５がそれぞれ形成され、さらに各中央補強リブ部
１２…、各周囲補強リブ部１３…の中央部の下部には貫
通しかつ押圧部材１０の下面にも連なる水透過孔１４…
がそれぞれ形成されている。また、中央補強リブ部１２
…の交差位置に相当する底板部１１の下面４箇所には、
突出する滑り止め部１６，１６…を形成し、押圧部材１
０を法面Ｇ上に設置したときの滑り止めを図っている。On the other hand, the center of the bottom plate portion surrounded by the central reinforcing rib portions 12...
, Water permeation holes 15 are respectively formed in the peripheral portions of the four bottom plate portions surrounded by..., And penetrate the lower portions of the central portions of the central reinforcing rib portions 12 and the peripheral reinforcing rib portions 13. And a water permeable hole 14 which also extends to the lower surface of the pressing member 10.
Are formed respectively. In addition, the central reinforcing rib 12
... at the four lower surfaces of the bottom plate 11 corresponding to the intersections of
Are formed so as to protrude, and the pressing member 1
0 is installed on the slope G to prevent slippage.
【００３７】一方、図３及び図４に示されているよう
に、周囲補強リブ部１３…のうち、中央補強リブ部１２
との交差部から放射方向に延びる平行の放射補強リブ部
１３ａ，１３ａは、実質的に連続して張り出し高さを順
次低くしながら端に向かって延在している。On the other hand, as shown in FIG. 3 and FIG.
The parallel radiation reinforcing ribs 13a, 13a extending in the radial direction from the intersection with the first part extend substantially continuously toward the end while gradually decreasing the overhang height.
【００３８】＜第２の実施の形態＞押圧部材の形状とし
ては、平面的に見て上記の方形に限らず、円形、三角、
５角以上の多角形などでもよい。これに応じて、中央補
強リブ部１２及び周囲補強リブ部１３の配置形態も変え
ることができる。他の一例として、図５〜７に示す第２
の実施の形態に係る押圧部材２０を挙げることができ
る。<Second Embodiment> The shape of the pressing member is not limited to the above-described square in plan view, but may be circular, triangular,
It may be a polygon having five or more corners. Accordingly, the arrangement of the central reinforcing rib portion 12 and the peripheral reinforcing rib portion 13 can be changed. As another example, as shown in FIGS.
The pressing member 20 according to the embodiment can be cited.
【００３９】この第２の実施の形態で使用する押圧部材
２０は、第１の実施の形態の押圧部材１０と異なり、十
字形となっており、法面Ｇと接触する底板部２１と、こ
の底板部２１を中央部を補強する環状の中央補強リブ部
２２と、放射補強リブ部２３ａを含む周囲補強リブ部２
３…とを備える。底板部２１と補強リブ部２２，２３…
とは、鋳鉄で一体的に形成してある。The pressing member 20 used in the second embodiment is different from the pressing member 10 of the first embodiment in a cross shape, and has a bottom plate portion 21 that comes into contact with the slope G, An annular central reinforcing rib portion 22 for reinforcing the central portion of the bottom plate portion 21 and a peripheral reinforcing rib portion 2 including a radiation reinforcing rib portion 23a;
3 ... Bottom plate 21 and reinforcing ribs 22, 23 ...
Is formed integrally with cast iron.
【００４０】この形態においては、押圧部材２０とアン
カー材２とのなす角度（アンカー材１の挿入角度）を選
択とすることができるように、底板部２１の中央部２１
ａに工夫をこらしてある。すなわち、中央部２１ａに
は、アンカー材貫通孔２９を有して手前に向かって突出
する環状の突出部２１ｂが形成されており、この突出部
２１ｂの上端面２１ｃは、球面に沿う形状とされてい
る。アンカー材１の定着座３を法面側の面を球面として
おくことにより、アンカー材１の挿入角度を選択しつつ
その位置で、定着座３の固定を図ることができる。In this embodiment, the central portion 21 of the bottom plate portion 21 is selected so that the angle between the pressing member 20 and the anchor member 2 (the insertion angle of the anchor member 1) can be selected.
a is devised. That is, the central portion 21a is formed with an annular projecting portion 21b having an anchor material through hole 29 and projecting toward the front, and the upper end surface 21c of the projecting portion 21b has a shape along the spherical surface. ing. By fixing the fixing seat 3 of the anchor member 1 to the spherical surface on the side of the slope, the fixing seat 3 can be fixed at that position while selecting the insertion angle of the anchor member 1.
【００４１】また、底板部２１の中央部２１ａを除いて
各周辺部には、多数の（合計２０個の）水透過孔２５…
が形成されている。さらに突出部２１ｂの４つの補強リ
ブと中央補強リブ部２２との交差部の両側（８箇所）、
ならびに各周囲補強リブ部２３の各角部（４箇所×４）
に裏面に抜ける水透過孔２４…が形成されている。各周
囲補強リブ部２３の中間底部には横に抜ける水透過孔２
６…が形成されている。Except for the central portion 21a of the bottom plate portion 21, each peripheral portion has a large number (a total of 20) of water permeable holes 25.
Are formed. Furthermore, both sides (eight places) of the intersection of the four reinforcing ribs of the projecting portion 21b and the central reinforcing rib portion 22,
And each corner of each peripheral reinforcing rib 23 (4 places x 4)
Are formed on the back surface. A water permeable hole 2 that extends laterally at the intermediate bottom of each peripheral reinforcing rib portion 23
6 are formed.
【００４２】＜第３の実施の形態＞図８〜図１０は第３
の実施の形態に係る押圧部材３０を示したもので、角が
丸みを帯びたほぼ正四角形の法面Ｇと接触する底板部３
１と、この底板部３１の中央部を補強する正四角形の環
状の中央補強リブ部３２と、底板部３１の４隅に向かっ
て十字状に放射方向に延びる放射補強リブ部３３ａを含
む周囲補強リブ部３３…とを備える。底板部３１と補強
リブ部３２，３３…とは、鋳鉄で一体的に形成してあ
る。<Third Embodiment> FIGS. 8 to 10 show a third embodiment.
The pressing member 30 according to the embodiment of the present invention is shown, and the bottom plate portion 3 is in contact with a generally square quadrangular surface G having rounded corners.
1, a peripheral reinforcement including a rectangular central reinforcement rib portion 32 for reinforcing a central portion of the bottom plate portion 31 and a radiation reinforcement rib portion 33 a extending in a cross-shaped radial direction toward four corners of the bottom plate portion 31. And rib portions 33. The bottom plate 31 and the reinforcing ribs 32, 33... Are integrally formed of cast iron.
【００４３】周囲補強リブ部３３…は中央補強リブ部３
２の一辺を共通する方形の他の三辺を構成する。したが
って、隣接する三辺の周囲補強リブ部３３…と中央補強
リブ部３２の一辺とは、無端状の環状壁を形成してい
る。さらにこの例においては、放射補強リブ部３３ａ、
３３ａ相互を繋ぎ、かつ、中央補強リブ部３２の一辺と
対向する周囲補強リブ部３３相互を繋ぎ、連結リブ３
４、３４が形成されている。The peripheral reinforcing ribs 33 are central reinforcing ribs 3.
The other three sides of the square having one side common to the two sides are formed. Therefore, the peripheral reinforcing ribs 33 on three adjacent sides and one side of the central reinforcing rib 32 form an endless annular wall. Further, in this example, the radiation reinforcing rib portions 33a,
33a, and the peripheral reinforcing ribs 33 facing one side of the central reinforcing rib 32.
4 and 34 are formed.
【００４４】この例においても、中央補強リブ部３２と
の交差部から放射方向に延びる平行の放射補強リブ部３
３ａ，３３ａは、実質的に連続して張り出し高さを順次
低くしながら端に向かって延在している。連結リブ３
４、３４についても同様である。Also in this example, the parallel radial reinforcing ribs 3 extending in the radial direction from the intersection with the central reinforcing rib 32.
Reference numerals 3a and 33a extend toward the ends while decreasing the overhang height substantially continuously. Connecting rib 3
The same applies to 4 and 34.
【００４５】さらに、中央補強リブ部３２の角の周囲部
位、中央補強リブ部３２と連結リブ３４との交点部位、
連結リブ３４と放射補強リブ部３３ａの交点部位、連結
リブ３４と端部周囲補強リブ部３３との交点部位、中央
補強リブ部３２内の突出部３１ｂと中央補強リブ部３２
との繋ぎ壁の両側部位のほか、リブに囲まれた空間内、
及び外部において、底板部３１に、裏面側に抜ける水の
透過孔３５が多数形成されている。放射補強リブ部３３
ａの壁には、水の連通孔３６が形成されている。Further, a portion around a corner of the central reinforcing rib portion 32, a portion at an intersection between the central reinforcing rib portion 32 and the connecting rib 34,
Intersection of the connecting rib 34 and the radiation reinforcing rib 33a, intersection of the connecting rib 34 and the end peripheral reinforcing rib 33, the protruding portion 31b in the central reinforcing rib 32 and the central reinforcing rib 32
In addition to both sides of the connecting wall, in the space surrounded by ribs,
In the outside, the bottom plate portion 31 is formed with a large number of water permeation holes 35 penetrating to the back side. Radiation reinforcing rib 33
A water communication hole 36 is formed in the wall a.
【００４６】＜第４の実施の形態＞図１１及び図１２は
第４の実施の形態に係る押圧部材４０を示したもので、
角が丸みを帯びたほぼ正四角形の法面Ｇと接触する底板
部４１と、この底板部４１の中央部を補強する円形環状
の中央補強リブ部４２と、底板部４１の４隅及び辺の中
央に向かって放射方向に延びる周囲補強リブ部としての
放射補強リブ部４３ａ…と、底板部４１の外形と同心形
に丸みを帯びたほぼ正四角形の環状に中間補強リブ４４
…と備える。底板部４１と放射補強リブ部４３ａと中間
補強リブ４４とは、鋳鉄で一体的に形成してある。<Fourth Embodiment> FIGS. 11 and 12 show a pressing member 40 according to a fourth embodiment.
A bottom plate portion 41 that comes into contact with a generally squared side surface G having a rounded corner, a circular annular central reinforcing rib portion 42 that reinforces a central portion of the bottom plate portion 41, and four corners and sides of the bottom plate portion 41. A radial reinforcing rib portion 43a extending radially toward the center, and a substantially square annular reinforcing rib 44 that is rounded concentrically with the outer shape of the bottom plate portion 41;
... and prepare. The bottom plate 41, the radiation reinforcing ribs 43a, and the intermediate reinforcing ribs 44 are integrally formed of cast iron.
【００４７】この例においても、中央補強リブ部４２と
の交差部から放射方向に延びる平行の放射補強リブ部４
３ａ，４３ａは、実質的に連続して張り出し高さを順次
低くしながら端に向かって延在している。Also in this example, the parallel radial reinforcing rib portions 4 extending in the radial direction from the intersection with the central reinforcing rib portion 42.
Reference numerals 3a and 43a extend toward the end while decreasing the overhang height substantially continuously.
【００４８】さらに、中央補強リブ部４２と放射補強リ
ブ部４３ａとの交点部位、中間補強リブ４４と放射補強
リブ部４３ａの交点部位、放射補強リブ部４３ａの端部
両側部位、中央補強リブ部４２内の突出部４１ｂと中央
補強リブ部４２との繋ぎ壁相互間の凹部部位のほか、リ
ブに囲まれた空間内、及び外部において、底板部４１
に、平面視で丸い及び小判形状の裏面側に抜ける水の透
過孔４５が多数形成されている。放射補強リブ部４３ａ
の壁には、水の連通孔４６が形成されているFurther, a point of intersection between the central reinforcing rib 42 and the radial reinforcing rib 43a, a point of intersection of the intermediate reinforcing rib 44 and the radial reinforcing rib 43a, both ends of the radial reinforcing rib 43a, a central reinforcing rib In addition to the recessed portion between the connecting walls between the protruding portion 41b and the central reinforcing rib portion 42 in the inside 42, the bottom plate portion 41 inside and outside the space surrounded by the ribs
In addition, a large number of water-permeation holes 45 penetrating to the back side of the round and oval shapes in plan view are formed. Radiation reinforcing rib 43a
A water communication hole 46 is formed in the wall of
【００４９】＜その他の事項及び施工の形態＞本発明で
の押圧部材としては、法面Ｇに対して押圧し、アンカー
材により引張り状態で定着するための部材であり、した
がって、押圧するに十分な下面の面積が必要となる。こ
のためには、５０ｃｍ角以上（０.２５ｍ2以上）の面積
を有することが望ましい。したがって、押圧部材は、コ
ンクリートブロック面上に設置して使用するような小断
面の、アンカーの引張り材やロックボルトの定着部材と
は異なることを注記する。<Other Matters and Form of Construction> The pressing member in the present invention is a member for pressing against the slope G and fixing it in a tensioned state by the anchor material. The area of the lower surface is required. For this purpose, it is desirable to have an area of 50 cm square or more (0.25 m 2 or more). Therefore, it should be noted that the pressing member is different from the anchor tension member or the locking bolt fixing member having a small cross section which is used by being installed on the concrete block surface.
【００５０】押圧部材の材質は、金属製が好ましく、特
に鋳鉄製であると、成形及び孔の形成が容易であるため
に特に好ましい。鋳鉄としては、その種類を何ら限定す
るものではない。例えば、ねずみ鋳鉄（普通鋳鉄、高級
鋳鉄）、球状黒鉛鋳鉄（ダクタイル鋳鉄、ノジュラ―鋳
鉄）、黒心可鍛鋳鉄（可鍛鋳鉄、マレアブル）、白心可
鍛鋳鉄、パーライト可鍛鋳鉄、低合金鋳鉄、アシキュラ
鋳鉄、ニハード鋳鉄、高クロム鋳鉄、ニレジスト鋳鉄、
高珪素鋳鉄、アルミ鋳鉄、チルド鋳鉄等を使用すること
ができる。押圧部材としては、適宜の他の材質のものも
使用でき、また、鋳造のほか、単位板材を溶接またはボ
ルト類などにより、組み上げて所定形状に形成できる。
したがって、本発明における底板部とリブ部との「一体
化」とは、溶接などのより接合する形態なども含む意義
である。The material of the pressing member is preferably made of metal, and particularly preferably made of cast iron, because molding and forming holes are easy. The type of cast iron is not limited at all. For example, gray cast iron (normal cast iron, high-grade cast iron), spheroidal graphite cast iron (ductile cast iron, nodular cast iron), black core malleable cast iron (malleable cast iron, malleable), white center malleable cast iron, pearlite malleable cast iron, low alloy Cast iron, acicular cast iron, nihard cast iron, high chrome cast iron, niresist cast iron,
High silicon cast iron, aluminum cast iron, chilled cast iron and the like can be used. As the pressing member, any other appropriate material can be used. In addition to casting, a unit plate material can be assembled into a predetermined shape by welding or bolts.
Therefore, the “integration” of the bottom plate portion and the rib portion in the present invention has a meaning including a more joined form such as welding.
【００５１】施工に際しては、図１に示す第１の押圧部
材１０を採用する場合に沿って説明すれば、押圧部材１
０，１０上に、この押圧部材１０，１０の周辺部を実質
的に覆い隠すように、すなわち少なくとも周辺の補強リ
ブ部間（実施の形態では中央補強リブ部１２の一辺と周
囲補強リブ部１３…とで囲まれる４つの方形部分）の底
板１を覆い隠しながら、法面Ｇ上に保護層４を形成す
る。押圧部材１０全体（すなわち中央部を含めて）を保
護層４により完全に覆うこともできる。しかし、アンカ
ー材１の頭部及び定着座３、あるいは頭部（防錆）キャ
ップ５については、メンテナンスに際に位置確認のため
からも露出させるのが望ましい。At the time of construction, if the first pressing member 10 shown in FIG.
0, 10 so as to substantially cover the peripheral portions of the pressing members 10, 10, that is, at least between the peripheral reinforcing rib portions (in the embodiment, one side of the central reinforcing rib portion 12 and the peripheral reinforcing rib portions 13). The protective layer 4 is formed on the slope G while covering the bottom plate 1 (four rectangular portions surrounded by...). The entire pressing member 10 (that is, including the central portion) can be completely covered with the protective layer 4. However, it is desirable to expose the head of the anchor material 1 and the fixing seat 3 or the head (rust-prevention) cap 5 in order to confirm the position during maintenance.
【００５２】この保護層４は、モルタルやコンクリート
等の吹付けによってもよいが、緑化可能な層であるのが
より望ましい。したがって、透水性の保護層とされる。
この緑化層の形成態様に限定されるものではないが、透
水係数が１０-5ｃｍ／秒以上の客土層、たとえば、透水
係数が１０-5ｃｍ／秒以上のソイルセメント層とするこ
とができる。この客土層としては、客土（現地発生土で
あってもよい）そのもののほか、砂やさらにセメント混
入砂、あるいは土砂に高分子接合剤を混入したものなど
でもよい。ソイルセメント層とする場合、砂及びまたは
土砂１ｍ3当りセメントを２０〜８０ｋｇの割合とする
のが望ましい。客土層単独のほか、植物の生育のため
に、客土層の表面に有機質の生育基盤層を形成すること
が望ましい。この生育基盤層の素材は、伐採木やチップ
の堆肥化物や、有機質系土壌改良剤、肥料などを例示で
きる。より具体的には、有機質土壌改良剤としてのピー
トモス、バーク堆肥を主原料に、高分子系および無機系
の土壌改良剤、肥料、粘結剤、種子などを混ぜたものな
どを挙げることができる。The protective layer 4 may be sprayed with mortar, concrete or the like, but is preferably a layer that can be greened. Therefore, it is a water-permeable protective layer.
But not limited to formation of the the greening layer, hydraulic conductivity is 10 -5 cm / sec or more soil dressing layer, for example, that the permeability to the 10 -5 cm / sec or more soil cement layer it can. As the soil layer, in addition to the soil itself (which may be locally generated soil), sand, cement-mixed sand, or a mixture of soil and a polymer binder may be used. In the case of a soil cement layer, it is desirable that the ratio of cement is 20 to 80 kg per 1 m 3 of sand and / or earth and sand. In addition to the soil layer alone, it is desirable to form an organic growth base layer on the surface of the soil layer for plant growth. Examples of the material of the growth base layer include composts of felled trees and chips, organic soil conditioners, and fertilizers. More specifically, peat moss as an organic soil improver, bark compost as a main raw material, and a mixture of a polymer-based and inorganic soil improver, fertilizer, binder, seed, and the like can be given. .
【００５３】また、客土層には繊維を混入して繊維混入
客土層とすることができる。繊維混入客土層に混入する
繊維は、短繊維でも長繊維でもよいが、連続長繊維を混
入するのが好ましい。連続長繊維の混入は、繊維混入客
土層を形成するに際して、例えば、図１３に示すよう
に、連続長繊維１０３をコーン状に巻き取ったその巻取
りチーズ１０４から繰り出し、給糸装置１０５に導入
し、コンプレッサー１０６による圧空で繊維圧送ホース
１０７を通し、その先端の吹付ノズル１０８から法面Ｇ
に向けて吹き付けるとよい。The soil layer can be mixed with fibers to form a fiber-enriched soil layer. The fibers mixed into the fiber-mixed soil layer may be short fibers or long fibers, but it is preferable to mix continuous long fibers. When the continuous fiber is mixed, for example, as shown in FIG. 13, the continuous fiber 103 is unwound from a winding cheese 104 which is wound in a cone shape when forming the fiber-mixed customer soil layer, and is fed to the yarn feeding device 105. The fiber is fed through the fiber pressure feeding hose 107 with compressed air by the compressor 106, and the slope G
It is good to spray toward.
【００５４】また、連続長繊維としては、嵩高加工糸が
使用するのが好ましい。その材質としては、ポリエステ
ル、ポリアミド、アクリル、ポリビニルアルコール、ポ
リプロピレン、ポリエチレン、ポリ塩化ビニル、ポリ塩
化ビニリデン、アセテートなどの各系列の樹脂を挙げる
ことができる。また、コンジュゲート糸、特に貼り合わ
せ糸を用いるのも有効である。この種の嵩高糸を用いる
と、繊維の圧送に際して、圧空との摩擦面積が増大し、
より搬送性が高まり、さらに吹付後繊維が分散し易くな
る。嵩高加工糸の捲縮数としては、ＪＩＳ Ｌ １０１
５の２５ｍ当りで５０〜９０００、特に１００〜３００
０が好ましい。また、嵩高加工糸として、トータルデニ
ールの太い繊維の一本を用いるよりは、５０〜１０００
ｄ（デニール）の繊維を、２〜４０本程度束ねて吹き付
けた方が、吹き付けた対象面において、より均一に分散
し、繊維混入客土層の安定性に優れるので好ましい。Further, it is preferable to use a bulky processed yarn as the continuous filament. Examples of the material include resins of various series such as polyester, polyamide, acrylic, polyvinyl alcohol, polypropylene, polyethylene, polyvinyl chloride, polyvinylidene chloride, and acetate. It is also effective to use a conjugate yarn, particularly a bonded yarn. The use of this kind of bulky yarn increases the frictional area with the compressed air during fiber feeding,
The transportability is further improved, and the fibers are easily dispersed after spraying. The number of crimps of the bulky yarn is JIS L 101
5, 50 to 9000, especially 100 to 300 per 25 m
0 is preferred. In addition, as a bulky processed yarn, 50 to 1000 fibers are used instead of using one thick fiber of total denier.
It is preferable to bundle and spray about 2 to 40 fibers of d (denier), since the fibers are more uniformly dispersed on the sprayed target surface and the fiber-mixed soil layer is excellent in stability.
【００５５】保護層４の形態は法面の保護を図る機能を
有する限り適宜である。保護層４は法面上の対象とする
領域において、その領域全体であることに限定されず、
部分的でもよい。The form of the protective layer 4 is appropriate as long as it has a function of protecting the slope. The protective layer 4 is not limited to the entire area in the target area on the slope,
It may be partial.
【００５６】また、前述のように保護層４は、図１４に
示すように、複数の層をもっても形成することができ
る。実施の形態では、押圧部材１０を実質的に覆い隠す
ように、法面Ｇ上に客土層４Ａを形成し、この客土層４
Ａ上に表面層たる有機質の生育基盤層４Ｂを形成したも
のである。この客土層４Ａに対して連続長繊維４ｆを混
入すると、客土層４Ａ自体の剪断力を高め、客土層４Ａ
の形成材料の粘着力（付着力）を高めて雨や風による流
亡や崩壊を防止することができる。生育基盤層４Ｂ中に
も短繊維や長繊維もしくは連続長繊維を混入することが
できる。As described above, the protective layer 4 can be formed with a plurality of layers as shown in FIG. In the embodiment, the soil layer 4A is formed on the slope G so as to substantially cover the pressing member 10, and the soil layer 4A is formed on the slope G.
An organic growth base layer 4B as a surface layer is formed on A. When the continuous long fiber 4f is mixed into the soil layer 4A, the shearing force of the soil layer 4A itself is increased, and the soil layer 4A is increased.
Can increase the adhesive force (adhesive force) of the forming material to prevent runoff or collapse due to rain or wind. Short fibers, long fibers, or continuous long fibers can be mixed into the growth base layer 4B.
【００５７】保護層４、客土層４Ａ、生育基盤層４Ｂは
吹付などによるほか、撒き出しや散布などにより、行っ
てもよい。保護層４の厚みとしては、植生を図る態様で
は、１０ｃｍ以上であるのが望ましい。したがって、客
土層４Ａの厚みとしては、１０ｃｍ〜５０ｃｍ、好まし
くは２０ｃｍ〜３０ｃｍ、生育基盤層４Ｂの厚みとして
は１ｃｍ〜７ｃｍが望ましい。The protective layer 4, the soil layer 4A, and the growth base layer 4B may be formed by spraying or spraying or by spraying. The thickness of the protective layer 4 is desirably 10 cm or more in a mode of vegetation. Therefore, the thickness of the soil layer 4A is desirably 10 cm to 50 cm, preferably 20 cm to 30 cm, and the thickness of the growth base layer 4 B is desirably 1 cm to 7 cm.
【００５８】これに対して、押圧部材の中央補強リブ部
の張出し高さと、保護層４の厚みとの関係で、保護層４
の厚みが押圧部材の中央補強リブ部の張出し高さより薄
い場合には、押圧部材の周辺部または全体は保護層４に
より隠されるものの、中央補強リブ部は部分的に外部に
露出するものとなるが、見映えの大きな低下とはならな
い。この場合、必要ならば、押圧部材及びその近傍部分
のみを周囲の法面上より厚い層厚とし、押圧部材のほぼ
全体を隠すようにすることができる。On the other hand, due to the relationship between the overhang height of the central reinforcing rib portion of the pressing member and the thickness of the protective layer 4, the protective layer 4
Is thinner than the overhang height of the central reinforcing rib portion of the pressing member, the peripheral portion or the entirety of the pressing member is hidden by the protective layer 4, but the central reinforcing rib portion is partially exposed to the outside. However, this does not mean that the appearance is greatly reduced. In this case, if necessary, only the pressing member and a portion near the pressing member can be made thicker than the surrounding slope to cover almost the entire pressing member.
【００５９】他方で、図１５に示すように、押圧部材１
０の補強リブ部により形成される手前側に開口する各空
間内に、客土層４Ａを充填し、この客土層４Ａ上ならび
に法面Ｇ上には、たとえば３〜１０ｃｍの厚みで表面層
たる有機質の生育基盤層４Ｂを形成し、領域全体に植生
することができる。On the other hand, as shown in FIG.
In each of the spaces formed by the reinforcing ribs on the front side, the soil layer 4A is filled, and the surface layer having a thickness of, for example, 3 to 10 cm is formed on the soil layer 4A and the slope G. The organic growth base layer 4B can be formed and vegetated over the entire area.
【００６０】上記形態において、客土層４Ａに代えて、
植生土壌とすることもできる。In the above embodiment, instead of the soil layer 4A,
Vegetable soil can also be used.
【００６１】押圧部材の補強リブ部は、前述の板状に限
られることなく、種々の張出し突起などでもよい。The reinforcing rib portion of the pressing member is not limited to the above-mentioned plate shape, but may be various projecting protrusions or the like.
【００６２】また、押圧部材を隣接配置したとき、相互
にたとえば鉄筋などにより連結することができる。この
連結は、押圧部材が鋼製であるときには、溶接や適宜の
金具により行うことができる。この種の連結材料につい
ても、保護層４により隠すのが望ましい。この形態例を
図１６に示す。すなわち、押圧部材２０、２０……をた
とえば格子状に隣接配置し（図示では一対の隣接配置態
様のみを示してある）、押圧部材２０、２０相互を、両
端に雄ネジを形成した鋼製の連結部材５０及びナットに
より連結し、各押圧部材２０、２０……の周辺部または
全体、ならびに押圧部材２０、２０……外の法面上を覆
い隠して透水性の保護層を形成するものである。When the pressing members are arranged adjacent to each other, they can be connected to each other by, for example, a reinforcing bar. When the pressing member is made of steel, this connection can be performed by welding or an appropriate metal fitting. It is desirable that this kind of connecting material is also hidden by the protective layer 4. This embodiment is shown in FIG. That is, the pressing members 20, 20,... Are arranged adjacently in a lattice shape, for example (only a pair of adjacent arrangements are shown in the drawing), and the pressing members 20, 20 are made of steel having male threads formed at both ends. The connection member 50 and the nut are connected to form a water-permeable protective layer by covering and surrounding the pressing members 20, 20,..., And the outer slopes of the pressing members 20, 20,. is there.
【００６３】押圧部材相互２０、２０を連結部材５０に
より連結することにより、仮に何らかの原因で一つの押
圧部材２０の地山に対する定着が不安定になったとして
も、他の押圧部材２０が地山に対して定着が図られてい
る限り、その不安定性はなく、全体として安定した押圧
部材群２０、２０……による地山の安定支持を図ること
ができる。また、連結を行うことにより、あるアンカー
が抜けた場合、当該押圧部材２０の落下は、他の押圧部
材２０がアンカーにより地山に対して定着が図られてい
るので、防止される。By connecting the pressing members 20, 20 by the connecting member 50, even if the fixing of one pressing member 20 to the ground becomes unstable for some reason, the other pressing members 20 will not As long as the fixing is achieved, there is no instability, and stable support of the ground can be achieved by the pressing member groups 20, 20... In addition, by performing the connection, when a certain anchor comes off, the falling of the pressing member 20 is prevented because the other pressing member 20 is fixed to the ground by the anchor.
【００６４】この押圧部材の落下を防止して安定して定
着を図る同様の観点から、図１７に示すように、たとえ
ば第１の実施の形態に係る押圧部材１０を例に採れば、
底板１１に形成された所要位置または数の水透過孔１５
にロックボルトやアンカーピンなどの補助固定部材６
を、地山に打ち込むことができる。From the same viewpoint of preventing the pressing member from dropping and stably fixing, as shown in FIG. 17, for example, taking the pressing member 10 according to the first embodiment as an example,
A required position or number of water permeable holes 15 formed in the bottom plate 11
Auxiliary fixing members 6 such as lock bolts and anchor pins
Can be driven into the ground.
【００６５】以上の説明過程から判るように、押圧部材
に要求されるのは、可能な限り張り出し高さが低く、植
生により可能な限り隠れるようにするのが望ましい。し
かし、地山の崩落に対して、押圧して支持するために、
アンカーの定着に耐え得る剛性を有することが押圧部材
に必要である。As can be seen from the above-described process, it is desirable that the pressing member be as low in overhang height as possible and hidden as much as possible by vegetation. However, in order to press and support the collapse of the ground,
It is necessary for the pressing member to have rigidity enough to withstand anchor anchoring.
【００６６】このためには、底板部の中央部に環状の中
央補強リブ部を形成し、中心回りに実質的に均等な少な
くとも４つの放射方向に沿って前記中央補強リブ部から
連続する放射補強リブ部を形成し、前記中央補強リブ部
及び放射補強リブ部は前記底板部に対して一体的に形成
し、前記中央補強リブ部内はアンカーの頭部の固定部と
することが押圧部材として、望ましい構造である。For this purpose, an annular central reinforcing rib portion is formed at the center of the bottom plate portion, and the radial reinforcing rib portion continuous from the central reinforcing rib portion along at least four radial directions substantially uniform around the center. Forming a rib portion, the central reinforcing rib portion and the radiation reinforcing rib portion are integrally formed with the bottom plate portion, and the central reinforcing rib portion serves as a fixing portion of the head of the anchor as a pressing member, This is a desirable structure.
【００６７】本発明者らは、その構造に関し、補強リブ
部の張り出し高さを低くして植生により可能な限り隠れ
るようにし、しかも、法面上への搬入、設置性の観点か
ら、軽量化を図るためには、前記各実施の形態で示すよ
うに、中央補強リブ部１２、２２、３２、４２と放射補
強リブ部１３ａ、２３ａ、３３ａ、４３ａとの交差部は
実質的に同一の張り出し高さＨとされ、放射補強リブ部
１３ａ、２３ａ、３３ａ、４３ａは前記交差部から放射
方向に、実質的に連続して張り出し高さを順次低くしな
がら端に向かって延在長さＬｆをもって延在することが
望ましいことを知見した。放射方向に、実質的に連続し
て張り出し高さを順次低くすると、周囲の保護層との一
体化を容易に図ることができる。Regarding the structure, the present inventors have made it possible to reduce the overhang height of the reinforcing ribs so that they can be hidden as much as possible by vegetation. In order to achieve this, as shown in the above embodiments, the intersections between the central reinforcing ribs 12, 22, 32, 42 and the radiation reinforcing ribs 13a, 23a, 33a, 43a have substantially the same overhang. The radiation reinforcing ribs 13a, 23a, 33a, and 43a have a length Lf extending toward the end while decreasing the protruding height substantially continuously in the radial direction from the intersection while sequentially decreasing the height. It has been found that it is desirable to extend. If the overhang height is reduced substantially continuously in the radial direction, integration with the surrounding protective layer can be easily achieved.
【００６８】さらに、張り出し高さＨと延在長さＬｆと
の関係が、図１９の領域Ｚ内にあることが望ましいこと
も知見した。図１８に示すように、押圧部材の地山の許
容支持力が、２５０ＫＮ／ｍ2レベルのものについて、
延在長さＬｆを順次３段階で変え、その時の、必要張り
出し高さＨを求めた領域がＳ１、Ｓ２及びＳ３であり、
１５０ＫＮ／ｍ2レベルのものについて、延在長さＬｆ
を順次３段階で変え、その時の、必要張り出し高さＨを
求めた領域がＳ４、Ｓ５及びＳ６であり、これらを統合
した範囲が図１９の領域Ｚである。Furthermore, it has been found that the relationship between the overhang height H and the extension length Lf is desirably within the region Z in FIG. As shown in FIG. 18, when the allowable supporting force of the ground of the pressing member is 250 KN / m 2 level,
The extension length Lf is sequentially changed in three stages, and the areas where the required overhang height H is obtained at that time are S1, S2 and S3,
Extension length Lf for 150 KN / m 2 level
Are sequentially changed in three stages. At that time, the areas where the required overhang height H is obtained are S4, S5 and S6, and the integrated area is the area Z in FIG.
【００６９】ここで、各実施の形態において、放射補強
リブ部１３ａ、２３ａ、３３ａは、それぞれ平行に２本
形成されているが、構造計算上は、１本の放射補強リブ
部と同視できる。したがって、放射補強リブ部４３ａに
ついても、同様に扱うことができる。連結リブ３４や中
間補強リブ４４は、本発明の観点からは計算上無視でき
る。Here, in each embodiment, two radiation reinforcing ribs 13a, 23a, and 33a are formed in parallel, respectively, but can be regarded as one radiation reinforcing rib in structural calculation. Therefore, the radiation reinforcing rib 43a can be handled in the same manner. The connecting ribs 34 and the intermediate reinforcing ribs 44 can be neglected in calculation from the viewpoint of the present invention.
【００７０】もちろん、領域Ｚ外の位置におけるものも
使用できるものの、その位置のものは、軽量である条件
と、補強リブ部の張り出し高さが低く植生により可能な
限り隠れる条件を同時には満足できない領域のものであ
る。Of course, it is possible to use the one at a position outside the area Z, but the one at that position cannot simultaneously satisfy the condition of light weight and the condition that the reinforcing rib portion has a low overhang height and is hidden as much as possible by vegetation. Of the area.
【００７１】領域Ｚ内のものを使用すると、押圧部材の
中央補強リブ部を残して、周辺部の補強リブ部のみと、
押圧部材外の法面上を覆い隠して透水性の保護層を形成
するだけで、概ね押圧部材全体も植生により目立たない
ものとなる。When the one in the region Z is used, the central reinforcing rib of the pressing member is left, and only the peripheral reinforcing rib is formed.
By merely covering the slope outside the pressing member and forming a water-permeable protective layer, the entire pressing member is almost inconspicuous due to vegetation.
【００７２】ところで、植物の根が通り地山に這うよう
にするためには、各押圧部材の底板に形成する水透過孔
１４,１５、２４,２５、３５、４５の各開口面積は７〜
８０ｃｍ2が好ましい。必要ならば、押圧部材の法面上
への設置前または後において、必要な水透過孔部位に地
山に２０〜５０ｃｍ程度の深さの掘削孔を形成しておく
と、植生または植物の根の発達が促進できる。By the way, in order for the roots of the plants to crawl on the ground, the water transmitting holes 14, 15, 24, 25, 35, and 45 formed in the bottom plate of each pressing member have an opening area of 7 to 7.
80 cm 2 is preferred. If necessary, before or after installation of the pressing member on the slope, if a drilling hole with a depth of about 20 to 50 cm is formed in the ground at the necessary water-permeable hole, the root of the vegetation or plant Development can be promoted.
【００７３】[0073]
【発明の効果】以上にとおり、本発明によれば、人工的
な感覚を与えがちな押圧部材を隠すことができ、しかも
保護層の形成材料の流亡や崩壊などがない利点をもたら
す。As described above, according to the present invention, it is possible to hide the pressing member which tends to give an artificial feeling, and to provide an advantage that the material for forming the protective layer does not flow or collapse.
【図１】施工形態の断面図である。FIG. 1 is a sectional view of a construction mode.
【図２】第１の押圧部材の平面図である。FIG. 2 is a plan view of a first pressing member.
【図３】図２におけるＡ−Ａ線相当部分の矢視図であ
る。3 is an arrow view of a portion corresponding to the line AA in FIG. 2;
【図４】図２におけるＢ−Ｂ線相当部分の矢視図であ
る。FIG. 4 is an arrow view of a portion corresponding to line BB in FIG. 2;
【図５】第２の押圧部材の平面図である。FIG. 5 is a plan view of a second pressing member.
【図６】図５の正面図である。FIG. 6 is a front view of FIG. 5;
【図７】図５におけるＡ−Ａ線相当部分の矢視図であ
る。7 is an arrow view of a portion corresponding to line AA in FIG. 5;
【図８】第３の押圧部材の平面図である。FIG. 8 is a plan view of a third pressing member.
【図９】その側面図である。FIG. 9 is a side view thereof.
【図１０】１０−１０線相当部分の矢視図である。FIG. 10 is an arrow view of a portion corresponding to line 10-10.
【図１１】第４の押圧部材の平面図である。FIG. 11 is a plan view of a fourth pressing member.
【図１２】中央線横断面図である。FIG. 12 is a cross-sectional view taken along a center line.
【図１３】繊維混入層（保護層）の形成方法の説明図で
ある。FIG. 13 is an explanatory diagram of a method of forming a fiber mixing layer (protective layer).
【図１４】他の施工形態の断面図である。FIG. 14 is a sectional view of another construction mode.
【図１５】別の施工形態の断面図である。FIG. 15 is a sectional view of another construction mode.
【図１６】押圧部材相互の連結形態平面図である。FIG. 16 is a plan view of the connection between the pressing members.
【図１７】さらに他の施工形態の断面図である。FIG. 17 is a sectional view of still another construction mode.
【図１８】押圧部材の地山の許容支持力レベルごとの張
り出し高さＨと延在長さＬｆとの関係の好適範囲を示す
説明図である。FIG. 18 is an explanatory diagram showing a preferable range of a relationship between an overhang height H and an extension length Lf for each allowable level of supporting force of the ground of the pressing member.
【図１９】張り出し高さＨと延在長さＬｆとの関係の好
適範囲を示す説明図である。FIG. 19 is an explanatory diagram showing a preferable range of a relationship between an overhang height H and an extension length Lf.
１…アンカー材、２…アンカー部、３…定着座、４…保
護層、４Ａ…生育基盤材層、４Ｂ…客土層、４ｆ…連続
繊維、１０…押圧部材、１１…底板部１１ａ…底板中央
部、１２…中央補強リブ部、１３…周囲補強リブ部、１
３ａ…放射補強リブ部、１４,１５、２４,２５,２６、
３５,３６、４５…水透過孔、１６…滑り止め部、１９
…アンカー材貫通孔、２０…押圧部材、２１…底板部２
１ａ…底板中央部、２２…中央補強リブ部，２３…周囲
補強リブ部、２１ｂ…突出部、２１ｃ…上端面、２４，
２５，２６、…水透過孔、２９…アンカー材貫通孔、３
０…押圧部材、４０…押圧部材、Ｇ…法面。DESCRIPTION OF SYMBOLS 1 ... Anchor material, 2 ... Anchor part, 3 ... Anchoring seat, 4 ... Protective layer, 4A ... Growth base material layer, 4B ... Soil layer, 4f ... Continuous fiber, 10 ... Pressing member, 11 ... Bottom plate part 11a ... Bottom plate Central part, 12 ... central reinforcing rib part, 13 ... peripheral reinforcing rib part, 1
3a: radiation reinforcing ribs, 14, 15, 24, 25, 26;
35, 36, 45: water permeable hole, 16: non-slip part, 19
... Anchor material through-hole, 20 ... pressing member, 21 ... bottom plate 2
1a: central portion of bottom plate, 22: central reinforcing rib portion, 23: peripheral reinforcing rib portion, 21b: projecting portion, 21c: upper end surface, 24,
25, 26,... Water permeable holes, 29, anchor material through holes, 3
0: pressing member, 40: pressing member, G: slope.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 久保 幸一 大阪府大阪市大正区南恩加島７丁目１番２ 号 株式会社クボタ恩加島工場内 Ｆターム(参考） 2D044 DA33 DB52 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Koichi Kubo 7-1-2 Minamienkajima, Taisho-ku, Osaka City, Osaka Prefecture F-term in Kubota Enkajima Plant (Reference) 2D044 DA33 DB52
Claims (11)
アンカー材を貫通して地山に挿入しその頭部の固定を図
ることにより法面に定着させ地山を安定化させる工法で
あって、 前記押圧部材は、前記法面に対して面する底板部と、少
なくとも周辺において形成された手前側に張り出す補強
リブ部とが一体化されて形成され、 前記押圧部材の周辺部または全体、ならびに前記押圧部
材外の法面上を覆い隠して透水性の保護層を形成するこ
とを特徴とする法面安定化工法。1. A method of stabilizing the ground by fixing a pressing member installed on the slope to the ground by inserting an anchor material into the center and inserting the pressing member into the ground, and fixing the head thereof. In the pressing member, a bottom plate portion facing the slope and a reinforcing rib portion formed at least in the periphery and extending toward the near side are integrally formed, and a peripheral portion of the pressing member is formed. Alternatively, a slope stabilization method characterized by forming a water-permeable protective layer by covering the entire surface and the slope outside the pressing member.
アンカー材を貫通して地山に挿入しその頭部の固定を図
ることにより法面に定着させ地山を安定化させる工法で
あって、 前記押圧部材は、前記法面に対して面する底板部と、少
なくとも周辺において形成された手前側に張り出す補強
リブ部とが一体化されて形成され、 前記押圧部材の周辺部または全体、ならびに前記押圧部
材外の法面上を覆い隠して、透水性の客土層及びその上
の表面層とを形成し、植生を図ることを特徴とする法面
安定化工法。2. A method for stabilizing the ground by fixing the pressing member installed on the slope to the ground by inserting an anchor material in the center of the pressing member into the ground and fixing the head thereof. In the pressing member, a bottom plate portion facing the slope and a reinforcing rib portion formed at least in the periphery and extending toward the near side are integrally formed, and a peripheral portion of the pressing member is formed. Alternatively, a slope stabilization method comprising concealing the entire surface and a slope outside the pressing member to form a permeable soil layer and a surface layer thereon, and vegetating the vegetation.
た請求項１または２記載の法面安定化工法。3. The method of stabilizing a slope according to claim 1, wherein a water permeable hole is formed in a bottom surface of the bottom plate.
ソイルセメントであり、表面層が有機質の生育基盤層で
ある請求項２または３記載の法面安定化工法。4. The slope stabilization method according to claim 2, wherein the soil layer is a soil cement having a water permeability of 10 −5 cm / sec or more, and the surface layer is an organic growth base layer.
繊維が混入されている請求項２または４記載の法面安定
化工法。5. The slope stabilization method according to claim 2, wherein continuous fibers are mixed into at least one of the soil layer and the surface layer.
と、中心回りに実質的に均等な少なくとも４つの放射方
向に沿って前記中央補強リブ部から連続する放射補強リ
ブ部とが底板部に対して一体的に形成され、前記中央補
強リブ部内はアンカーの頭部の固定部であり、 前記放射補強リブ部と前記中央補強リブ部とは実質的に
無端状の環状壁を形成しており、この環状壁で囲まれた
上方開放の空間内に保護層を形成する請求項１〜５のい
ずれか１項に記載の法面安定化工法。6. A bottom plate comprising: an annular central reinforcing rib at the center of the pressing member; and a radial reinforcing rib continuing from the central reinforcing rib along at least four radial directions substantially uniform around the center. The central reinforcing rib portion is a fixed portion of the head of the anchor, and the radial reinforcing rib portion and the central reinforcing rib portion form a substantially endless annular wall. The slope stabilization method according to any one of claims 1 to 5, wherein a protective layer is formed in a space that is open upward and surrounded by the annular wall.
と、中心回りに実質的に均等な少なくとも４つの放射方
向に沿って前記中央補強リブ部から連続する放射補強リ
ブ部とが底板部に対して一体的に形成され、前記中央補
強リブ部内はアンカーの頭部の固定部であり、 前記放射補強リブ部は前記中央補強リブ部との交差部か
ら放射方向に、実質的に連続して張り出し高さを順次低
くしながら端に向かって延在している請求項１〜６のい
ずれか１項に記載の法面安定化工法。7. A bottom plate comprising: an annular central reinforcing rib at the center of the pressing member; and a radial reinforcing rib continuing from the central reinforcing rib along at least four radial directions substantially uniform around the center. The central reinforcing rib portion is a fixed portion of a head of an anchor, and the radial reinforcing rib portion is substantially continuous in a radial direction from an intersection with the central reinforcing rib portion. The slope stabilization method according to any one of claims 1 to 6, wherein the projecting portion extends toward the end while gradually decreasing the overhang height.
アンカー材を貫通して地山に挿入しその頭部の固定を図
ることにより法面に定着させ地山を安定化させる工法で
あって、 前記押圧部材は、前記法面に対して面する底板部と、こ
の底板部に対して一体的に手前側に張り出して形成され
た、前記押圧部材の中央部に位置する環状の中央補強リ
ブ部と、中心回りに実質的に均等な少なくとも４つの放
射方向に沿って前記中央補強リブ部から実質的に連続し
て張り出し高さを順次低くしながら端に向かって延在す
る放射補強リブ部とを有し、前記中央補強リブ部内はア
ンカーの頭部の固定部であり、 前記押圧部材の中央補強リブ部、及び前記放射補強リブ
部のうち中央補強リブ部側部分を残して、残余の部分の
みと、周囲の法面とを覆い隠して透水性の保護層を形成
することを特徴とする法面安定化工法。8. A method for stabilizing the ground by fixing the pressing member installed on the slope to the ground by inserting an anchor material into the center of the pressing member and inserting it into the ground, and fixing the head thereof. The pressing member has a bottom plate portion facing the slope, and is formed integrally with the bottom plate portion so as to protrude toward the near side, and has an annular shape located at a central portion of the pressing member. A central stiffening rib portion and a radiation extending toward the edge substantially successively from the central stiffening rib portion along at least four radial directions substantially uniform about the center, with progressively decreasing overhang heights; A reinforcing rib portion, the inside of the central reinforcing rib portion is a fixing portion of the head of the anchor, and the central reinforcing rib portion of the pressing member, and the central reinforcing rib portion side portion of the radiation reinforcing rib portion is left. , Conceal only the rest and the surrounding slope Slope stabilization method, which comprises forming a water-permeable protective layer.
れぞれの中央部にアンカー材を貫通して地山に挿入しそ
の頭部の固定を図ることにより法面に定着させ地山を安
定化させる工法であって、 前記押圧部材は、前記法面に対して面する底板部と、少
なくとも周辺において形成された手前側に張り出す補強
リブ部とが一体化されて形成され、 前記隣接配置された押圧部材相互は、連結部材により連
結され、 各前記押圧部材の周辺部または全体、ならびに前記押圧
部材外の法面上を覆い隠して透水性の保護層を形成する
ことを特徴とする法面安定化工法。9. A plurality of pressing members arranged adjacent to the slope are inserted into the ground through an anchor material at their respective central portions, and are fixed to the slope by fixing their heads to fix the ground. A method of stabilizing, wherein the pressing member is formed by integrating a bottom plate portion facing the slope surface and a reinforcing rib portion formed at least in the periphery and projecting to the near side, The arranged pressing members are connected to each other by a connecting member, and cover the peripheral portion or the entirety of each of the pressing members, and the slope outside the pressing member to form a water-permeable protective layer. Slope stabilization method.
にアンカー材を貫通して地山に挿入しその頭部の固定を
図ることにより法面に定着させ地山を安定化させる工法
であって、 前記押圧部材は、前記法面に対して面する底板部と、中
央部に位置する環状の中央補強リブ部と、中心回りに実
質的に均等な少なくとも４つの放射方向に沿って前記中
央補強リブ部から連続する放射補強リブ部とを有し、前
記中央補強リブ部及び放射補強リブ部は前記底板部に対
して一体的に形成され、前記中央補強リブ部内はアンカ
ーの頭部の固定部であり、 前記中央補強リブ部と前記放射補強リブ部との交差部は
実質的に同一の張り出し高さＨとされ、前記放射補強リ
ブ部は前記中央補強リブ部との交差部から放射方向に、
実質的に連続して張り出し高さを順次低くしながら端に
向かって延在長さＬｆをもって延在し、 前記張り出し高さＨと前記延在長さＬｆとの関係が、図
１９の領域Ｚ内にあり、 各前記押圧部材の周辺部または全体、ならびに前記押圧
部材外の法面上を覆い隠して透水性の保護層を形成する
ことを特徴とする法面安定化工法。10. A method for stabilizing the ground by fixing a pressing member installed on the slope to the ground by inserting an anchor material in the center of the pressing member into the ground and fixing the head thereof. The pressing member has a bottom plate portion facing the slope, an annular central reinforcing rib portion located at a central portion, and at least four radial directions substantially uniform around the center. A radial reinforcing rib portion continuing from the central reinforcing rib portion, wherein the central reinforcing rib portion and the radial reinforcing rib portion are formed integrally with the bottom plate portion, and a head of the anchor is provided in the central reinforcing rib portion. A crossing portion between the central reinforcing rib portion and the radiation reinforcing rib portion has substantially the same overhang height H, and the radiation reinforcing rib portion extends from the crossing portion with the central reinforcing rib portion. In the radial direction,
19. Extending toward the end with an extension length Lf while continuously decreasing the extension height substantially continuously, and the relationship between the extension height H and the extension length Lf is determined by a region Z in FIG. A method of stabilizing a slope by covering and surrounding a peripheral portion or the whole of each pressing member and a slope outside the pressing member to form a water-permeable protective layer.
にアンカー材を貫通して地山に挿入しその頭部の固定を
図ることにより法面に定着された構造であって、 前記押圧部材は、前記法面に対して面する底板部と、少
なくとも周辺において形成された手前側に張り出す補強
リブ部とが一体化されて形成され、 前記押圧部材の周辺部または全体、ならびに前記押圧部
材外の法面上を覆い隠して透水性の保護層が形成されて
いることを特徴とする法面安定化構造。11. A structure in which a pressing member installed on a slope is fixed to the slope by inserting an anchor material into the center of the pressing member and inserting it into the ground to fix the head thereof. The pressing member is formed integrally with a bottom plate portion facing the slope and a reinforcing rib portion formed at least in the periphery and extending toward the near side, and a peripheral portion or the entirety of the pressing member, and A slope stabilizing structure, wherein a water-permeable protective layer is formed so as to cover the slope outside the pressing member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001281812A JP3563381B2 (en) | 2000-12-25 | 2001-09-17 | Slope stabilization method and slope stabilization structure |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000392693 | 2000-12-25 | ||
| JP2000-392693 | 2000-12-25 | ||
| JP2001281812A JP3563381B2 (en) | 2000-12-25 | 2001-09-17 | Slope stabilization method and slope stabilization structure |
Related Child Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2003332092A Division JP2004044384A (en) | 2000-12-25 | 2003-09-24 | Slope stabilization method and slope stabilization structure |
| JP2004006450A Division JP2004162525A (en) | 2000-12-25 | 2004-01-14 | Construction method for slope surface stabilization and slope surface stabilization structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2002256563A true JP2002256563A (en) | 2002-09-11 |
| JP3563381B2 JP3563381B2 (en) | 2004-09-08 |
Family
ID=26606523
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001281812A Expired - Lifetime JP3563381B2 (en) | 2000-12-25 | 2001-09-17 | Slope stabilization method and slope stabilization structure |
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| Country | Link |
|---|---|
| JP (1) | JP3563381B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010138630A (en) * | 2008-12-12 | 2010-06-24 | Free Kogyo Kk | Slope bearing plate and slope protection construction method |
| JP2016094783A (en) * | 2014-11-17 | 2016-05-26 | 公益財団法人鉄道総合技術研究所 | Method and structure for reinforcing natural ground |
-
2001
- 2001-09-17 JP JP2001281812A patent/JP3563381B2/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010138630A (en) * | 2008-12-12 | 2010-06-24 | Free Kogyo Kk | Slope bearing plate and slope protection construction method |
| JP2016094783A (en) * | 2014-11-17 | 2016-05-26 | 公益財団法人鉄道総合技術研究所 | Method and structure for reinforcing natural ground |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3563381B2 (en) | 2004-09-08 |
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