JP2011106206A - Soil blocking method for import soil and soil blocking tool for import soil - Google Patents

Soil blocking method for import soil and soil blocking tool for import soil Download PDF

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JP2011106206A
JP2011106206A JP2009264224A JP2009264224A JP2011106206A JP 2011106206 A JP2011106206 A JP 2011106206A JP 2009264224 A JP2009264224 A JP 2009264224A JP 2009264224 A JP2009264224 A JP 2009264224A JP 2011106206 A JP2011106206 A JP 2011106206A
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soil
ground
plate
retaining plate
earth retaining
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JP5339623B2 (en
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Kenzo Saito
建三 斉藤
Takayuki Nakamura
貴之 中村
Takeshi Kutsuzawa
武 沓澤
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Okabe Co Ltd
Japan Foundation Engineering Co Ltd
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Okabe Co Ltd
Japan Foundation Engineering Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a handy soil blocking technique for import soil which technique ensures precise soil blocking action in a simple structure without causing the insufficiency of the bearing force of a soil-blocking plate against soft ground. <P>SOLUTION: The tops of a plurality of support members 5 made of bars bent substantially into U shapes or V shapes are connected together with a connecting member 6. A soil-blocking plate 7 having a number of openings is supported on the mountain-side against the support members 5 across the connecting member 6 serving as the boundary between the mountain side and the valley-side. Flexible ground plates 8 are fixed to the valley-side lower ends of the support members 5, and are grounded on the sloped ground surface. The lower part of the soil-blocking plate 7 is fixed to the ground with anchor pins, and import soil for vegetation is carried onto the ground. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

本発明は、傾斜した地盤表面に対して植栽用の客土を吹付け工法などにより供給して斜面の緑化を図る斜面の緑化技術に関し、より詳しくは、その傾斜した地盤表面に供給した植栽用の客土の滑落を防止し得るとともに、良好な排水性や通気性を維持し得る客土用の土留技術に関するものである。   The present invention relates to a slope greening technique for supplying a planting soil to a sloped ground surface by spraying or the like, and more specifically, planting supplied to the sloped ground surface. The present invention relates to a soil retaining technique for customer land that can prevent sliding of customer soil for planting and can maintain good drainage and air permeability.

この種の客土用の土留技術に関しては、傾斜した地盤表面に対して多数の土留板を設置した上、植生材として客土などを吹付け工法などにより供給して緑化を図る土留技術が知られている。また、その土留板の設置の仕方に関し、アンカーにより土留板を直接的に支持して設置するものや、Ｌ字状、略Ｖ字状、あるいは三角形状に折曲げ形成した支持部材を介して土留板を支持し、アンカーによって固定するものなどが知られている（特許文献１）。しかしながら、これらの従来における土留板の設置の仕方では、その土留板を支持する支持力が、山側ではアンカーの定着力に依存する。一方、谷側においては、土留板が受止める土留圧に基づいて支持部材に後方への回転力が作用することになるが、この回転力に対しては、その支持部材の谷側の部分と地盤との接地面における地盤側からの反力に依存することになる。このため、軟弱な地盤の場合には、とりわけ谷側において支持部材の接地部が地盤側へめり込んで土留板に対する支持力の不足が生じるといった技術的問題があった。   With regard to this type of soil retaining technology for customer soil, there is a known soil retaining technology that installs many soil retaining plates on an inclined ground surface and supplies the soil as a vegetation material by spraying, etc. It has been. Moreover, regarding the installation method of the earth retaining plate, the earth retaining plate is installed via a support member that is installed by directly supporting the earth retaining plate with an anchor or bent into an L shape, a substantially V shape, or a triangular shape. A device that supports a plate and is fixed by an anchor is known (Patent Document 1). However, in these conventional methods of installing the retaining plate, the supporting force for supporting the retaining plate depends on the anchoring force of the anchor on the mountain side. On the other hand, on the trough side, a backward rotational force acts on the support member based on the earth retaining pressure received by the retaining plate. For this rotational force, the trough side portion of the support member and It depends on the reaction force from the ground side on the ground contact surface with the ground. For this reason, in the case of soft ground, there has been a technical problem that the grounding portion of the support member sinks into the ground side, particularly on the valley side, resulting in insufficient support for the retaining plate.

特開２００７−２９７８８９号公報JP 2007-297889 A

本発明は、より簡素な構成によって、軟弱な地盤に対しても土留板の支持力の不足が生じることなく、的確な土留作用を確保し得る使い勝手のよい客土用の土留技術を提供することを目的とするものである。   The present invention provides an easy-to-use earth retaining technique for a customer land that can ensure an accurate earth retaining action without causing a lack of supporting force of the earth retaining plate even on soft ground with a simpler configuration. It is intended.

本発明は、前記課題を解決するため、略Ｕ字状又は略Ｖ字状に折曲げ形成した棒材からなる複数の支持部材の各頂部を連結部材にて連結し、その連結部材を境に前記支持部材の片側に多数の開孔部を備えた土留板を支持するとともに、前記支持部材の反対側の下端部に可撓性を有する接地板を固着し、その接地板を傾斜した地盤表面に接地させるとともに、前記土留板の下部をアンカーピンにより地盤に対して固定した上、前記地盤上に植生用の客土を供給するという技術手段を採用した。なお、前記土留板は、網状部材から構成したり、間隔をあけて平行に並べた多数の棒材から構成することが可能である。   In order to solve the above-mentioned problem, the present invention connects the tops of a plurality of support members made of a bar material bent into a substantially U shape or a substantially V shape with a connecting member, and the connecting member serves as a boundary. A ground surface that supports a earth retaining plate having a large number of apertures on one side of the support member, and has a grounding plate having flexibility attached to a lower end portion on the opposite side of the support member, and the grounding plate is inclined. In addition, the technical means was adopted in which the lower part of the retaining plate was fixed to the ground with an anchor pin and the soil for vegetation was supplied onto the ground. In addition, the said earth retaining plate can be comprised from a net-like member, or can be comprised from many bar materials arranged in parallel at intervals.

本発明によれば、次の効果を得ることができる。
（１）土留板の支持手段として、略Ｕ字状又は略Ｖ字状に折曲げ形成した棒材からなるアーチ状の支持部材を採用したので、客土の滑落に対する強力な土留力を簡便に得ることができる。
（２）支持部材の谷側の下端部に可撓性を有する接地板を固着し、その接地板を傾斜した地盤表面に接地させることによって、地盤側からの反力を的確に受止めるように構成したので、軟弱な地盤に対する場合であっても、従来のように支持部材の谷側の下端部が地盤側にめり込んで支持力の不足を生じるような事態は的確に防止することができ、客土の滑落に対する的確な土留力を簡便かつ安定的に得ることができる。
（３）アンカーピンによる山側の地盤に対する定着力と前記接地板による谷側の地盤に対する接地面からの反力との組合わせによって、客土の滑落を防止する土留力を確保するように構成したので、きわめて簡素な構成であるにも拘らず、軟弱な地盤に対する場合であっても、的確な土留力を簡便かつ安定的に得ることができる。
（４）支持部材の谷側の下端部に固着される前記接地板は、可撓性を有することから地盤表面の凹凸に適応可能であるとともに、その設置状態において地盤表面と客土下面とによって挟持されることからがたつきの少ない安定した設置状態が簡便に得られる。
（５）土留板として多数の開孔部を備えた土留板を採用したことから、客土の滑落を防止するだけでなく、良好な排水性や通気性を維持し得るので、土留板によって客土が隔離されることがなく、また根絡みも期待できるので、斜面の保護及び的確な緑化に有効である。 According to the present invention, the following effects can be obtained.
(1) Since an arch-shaped support member made of a bar material bent into a substantially U-shape or a substantially V-shape is used as a support means for the retaining plate, a powerful retaining force against the sliding of the customer soil can be easily achieved. Obtainable.
(2) A grounding plate having flexibility is fixed to the lower end of the trough side of the support member, and the grounding plate is grounded on the inclined ground surface so that the reaction force from the ground side can be accurately received. Since it is configured, even in the case of soft ground, it is possible to accurately prevent a situation in which the lower end of the trough side of the support member is sunk into the ground side as in the conventional case, resulting in insufficient support force, It is possible to easily and stably obtain an accurate earth retaining force against the sliding of the customer soil.
(3) The anchoring force to prevent the soil from slipping is secured by combining the anchoring force of the anchor pin to the ground on the mountain side and the reaction force from the grounding surface to the ground on the valley side by the grounding plate. Therefore, despite the extremely simple configuration, an accurate earth retaining force can be obtained simply and stably even in the case of soft ground.
(4) The grounding plate fixed to the lower end of the trough side of the support member is flexible and can be adapted to the unevenness of the ground surface. A stable installation state with little shakiness is easily obtained because of being sandwiched.
(5) Since a retaining plate with a large number of apertures is used as the retaining plate, not only can the sliding of the customer soil be prevented, but also good drainage and air permeability can be maintained. Since soil is not isolated and root entanglement can be expected, it is effective for protecting slopes and greening properly.

本発明の実施状態を例示した説明図である。It is explanatory drawing which illustrated the implementation state of this invention. 本発明の客土用土留用具に係る第１実施例を示した正面図である。It is the front view which showed 1st Example which concerns on the earth retaining tool for customer land of this invention. 同第１実施例を拡大して示した拡大側面図である。It is the expanded side view which expanded and showed the 1st Example. 同第１実施例を示した斜視図である。It is the perspective view which showed the 1st Example. 本発明の客土用土留用具に係る第２実施例を示した正面図である。It is the front view which showed 2nd Example which concerns on the earth retaining tool for customer land of this invention. 同第２実施例を拡大して示した拡大側面図である。It is the expanded side view which expanded and showed the 2nd Example. 同第２実施例を示した斜視図である。It is the perspective view which showed the 2nd Example.

本発明は、地盤表面に対して供給される客土の滑落を防止する土留手段として使用されるものであれば、更に他の緑化基材を合わせて地盤表面に供給する場合にも適用し得ることはいうまでもない。本発明の土留手段は、とりわけ軟弱な地盤表面に対して有効であるが、それに限定されるものではない。すなわち、適用する地盤表面は、地山などの自然のままの斜面の表面でも、造成された斜面の表面でも、予めコンクリートやモルタル等によって被覆された斜面の表面であってもよい。また、土留板は、多数の開孔部を有するものであればよく、網状部材から構成したり、多数の棒材を間隔をあけて平行に並べて形成したものなどから構成される。その土留板の高さ方向の幅は、前記支持部材間の山側の下端部から上端部までの全幅を塞ぐものでもよいが、一部を塞ぐ形態も可能である。   The present invention can also be applied to the case where other greening base materials are combined and supplied to the ground surface as long as it is used as a soil retaining means for preventing slippage of customer soil supplied to the ground surface. Needless to say. The earth retaining means of the present invention is particularly effective for a soft ground surface, but is not limited thereto. In other words, the ground surface to be applied may be a natural slope surface such as a natural ground, a slope surface that has been created, or a slope surface that has been previously covered with concrete, mortar, or the like. The earth retaining plate may be any member having a large number of apertures, and may be composed of a net-like member or a member in which a large number of rods are arranged in parallel at intervals. The width in the height direction of the earth retaining plate may cover the entire width from the lower end portion on the mountain side between the support members to the upper end portion, but a form in which a portion is closed is also possible.

また、土留板の下部をアンカーピンにより地盤に対して固定する場合の具体的な手法に関しては、土留板の下部に対して直接的にアンカーピンの掛止部を掛止するようにしてもよいし、土留板の他の部分に対してアンカーピンの掛止部を掛止するようにしてもよい。その場合に、アンカーピンを先に打込み、そのアンカーピンの掛止部に土留用具を掛止するように設置してもよいし、逆に後からアンカーピンを打込む際に掛止部を土留用具に掛止させるようにしてもよい。さらに、前記支持部材の下端部をアンカーピンによって固定することにより、土留板の下部を地盤に対して固定する形態も可能である。要は、アンカーピンを用いて土留板の下部を地盤に対して固定し得るものであればよい。   In addition, regarding a specific method for fixing the lower portion of the retaining plate to the ground with the anchor pin, the anchor pin retaining portion may be directly engaged with the lower portion of the retaining plate. And you may make it latch the latching | locking part of an anchor pin with respect to the other part of a retaining plate. In that case, the anchor pin may be driven first, and it may be installed so that the earth retaining device is hooked on the anchor pin retaining portion. Conversely, when the anchor pin is driven later, the retaining portion is retained. You may make it hook on a tool. Furthermore, the lower part of the supporting member may be fixed with an anchor pin so that the lower part of the retaining plate is fixed to the ground. In short, any anchor pins may be used as long as the lower part of the retaining plate can be fixed to the ground.

また、土留板に対する支持部材の配置関係は、土留板の左右両端及び中央に支持部材を配置する形態だけでなく、土留板に作用する圧力により回動しないように間隔をあけて配設した少なくとも２つの支持部材を有するものであればよい。さらに、前記接地板は、後述の実施例のように谷側の全ての支持部材の下端部に設ける形態が好適であるが、土留板の支持力として充分な反力が得られる場合には、一部の支持部材の下端部に対する設置は省略してもよい。この接地板の大きさや可撓性に関しては、地盤側にめり込んでしまうことなく、地盤からの反力を的確に受止めて土留板に作用する圧力に対して十分に対抗し得る受圧面積と可撓性を備えるように設定する。なお、接地板の可撓性は、地盤表面に対して適度に食込んで、その地盤表面の凹凸に適応できる程度のものが好適である。そして、その程度の可撓性を備えるものであれば、金属製だけでなく合成樹脂製のものも可能である。   Further, the support member is arranged not only in the form in which the support members are arranged at both the left and right ends and the center of the retaining plate, but also at least disposed so as not to rotate due to the pressure acting on the retaining plate. What is necessary is just to have two supporting members. Further, the ground plate is preferably provided at the lower end of all support members on the valley side as in the examples described later, but when a sufficient reaction force is obtained as the support force of the earth retaining plate, Installation on the lower end of some of the support members may be omitted. With regard to the size and flexibility of the grounding plate, the pressure receiving area and the possibility of sufficiently resisting the reaction force from the ground and sufficiently acting against the pressure acting on the earth retaining plate without being sunk into the ground side are possible. Set to have flexibility. The flexibility of the grounding plate is suitable so that it can be appropriately bitten into the ground surface and can be adapted to the unevenness of the ground surface. And if it is provided with such a degree of flexibility, not only metal but also synthetic resin can be used.

図１は本発明の実施状態を例示した説明図であり、図示のように本発明に係る客土用の土留用具１は、傾斜した地盤２の表面に対して千鳥状などの適宜の配列で多数設置される。しかる後、その地盤２の表面に対して吹付け工法などにより客土３が供給され、緑化などが図られることになる。なお、図中４はアンカーピンを示したものである。   FIG. 1 is an explanatory view illustrating an implementation state of the present invention. As shown in the figure, a soil retaining tool 1 for customer land according to the present invention has an appropriate arrangement such as a staggered pattern with respect to the surface of an inclined ground 2. Many are installed. Thereafter, the customer soil 3 is supplied to the surface of the ground 2 by a spraying method or the like, and greening or the like is achieved. In the figure, reference numeral 4 denotes an anchor pin.

図２〜図４は本発明の客土用土留用具に係る第１実施例を示したものである。図示のように、本実施例に係る土留用具１は、略Ｕ字状に折曲げ形成した棒材からなる複数の支持部材５と、それらの支持部材５の各頂部を連結した連結部材６と、その連結部材６を境に前記支持部材５の片側に設けた多数の開孔部を有する網状部材からなる帯状の土留板７と、その支持部材５の反対側の下端部に溶接などにより固着した可撓性を有する接地板８とから構成される。   FIGS. 2-4 shows the 1st Example which concerns on the earth retaining tool for customer land of this invention. As shown in the figure, the earth retaining device 1 according to the present embodiment includes a plurality of support members 5 made of a bar material bent into a substantially U shape, and connecting members 6 that connect the tops of the support members 5. A belt-like earth retaining plate 7 made of a net-like member having a large number of openings provided on one side of the support member 5 with the connecting member 6 as a boundary, and fixed to the lower end on the opposite side of the support member 5 by welding or the like And the grounding plate 8 having flexibility.

本実施例の土留用具１を傾斜した地盤２の表面に対して設置する場合には、図４に示したように、土留板７を設けた側を山側へ向けて地盤２上の所定位置に載置する。これにより、支持部材５の反対側の下端部に固着された接地板８は地盤２の谷側の表面に接地され、支持部材５の谷側に関する設置作業は完了する。しかる後、アンカーピン４を土留板７の下部の網目に挿通させ、あるいは外側から土留板７の下部近傍に打込み、そのアンカーピン４の上端部に折曲げ形成したＬ字状などの掛止部を土留板７の下部に掛止して、土留板７の下部を地盤２に対して固定する。すなわち、土留用具１の設置に際しては、傾斜した地盤２の表面の所定の設置位置に載置し、土留板７の下部をアンカーピン４によって地盤２に対して固定するだけで設置作業が完了し、土留用具１をきわめて簡便に設置することができる。なお、前述のように、アンカーピン４によって支持部材５の山側下端部を固定することにより、土留板７の下部を地盤２に対して固定するようにしてもよい。また、以上の説明では、土留用具１を地盤２上の所定位置に載置し、その載置状態で後からアンカーピン４を打込んで固定する場合を示したが、先にアンカーピン４を打込んでおき、その打込まれたアンカーピン４の掛止部に対して後から土留板７側を掛止するようにして土留用具１を設置する作業手順も可能である。   When installing the earth retaining device 1 of this embodiment against the surface of the inclined ground 2, as shown in FIG. 4, the side on which the earth retaining plate 7 is provided is directed to the mountain side at a predetermined position on the ground 2. Place. Thereby, the grounding plate 8 fixed to the lower end portion on the opposite side of the support member 5 is grounded to the surface on the valley side of the ground 2, and the installation work related to the valley side of the support member 5 is completed. After that, the anchor pin 4 is inserted into the mesh of the lower part of the retaining plate 7 or is driven from the outside into the vicinity of the lower part of the retaining plate 7 and is bent at the upper end of the anchor pin 4 such as an L-shaped latching portion. Is secured to the lower part of the retaining plate 7, and the lower part of the retaining plate 7 is fixed to the ground 2. That is, when installing the earth retaining device 1, the installation work is completed simply by placing it on a predetermined installation position on the surface of the inclined ground 2 and fixing the lower part of the earth retaining plate 7 to the ground 2 with the anchor pins 4. The earth retaining device 1 can be installed very simply. As described above, the lower end of the retaining plate 7 may be fixed to the ground 2 by fixing the lower end of the support member 5 with the anchor pin 4. In the above description, the earth retaining device 1 is placed at a predetermined position on the ground 2 and the anchor pin 4 is driven and fixed later in the placement state. A work procedure is also possible in which the earth retaining device 1 is installed so that the earth retaining plate 7 side is later engaged with the anchor portion of the anchor pin 4 that has been implanted.

図５〜図７は本発明の客土用土留用具に係る第２実施例を示したものである。図示のように、本実施例に係る土留用具９は、略Ｕ字状に折曲げ形成した棒材からなる前記支持部材５と同様の複数の支持部材１０と、それらの支持部材１０の各頂部を連結した連結部材１１と、その連結部材１１を境に前記支持部材１０の片側に間隔をあけて平行に並べて設けた多数の棒材１２からなる土留板１３と、その支持部材１０の反対側の下端部に溶接などにより固着した可撓性を有する接地板１４とから構成される。   5 to 7 show a second embodiment according to the soil retaining device for customer land according to the present invention. As shown in the drawing, the earth retaining device 9 according to the present embodiment includes a plurality of support members 10 similar to the support member 5 made of a bar material bent in a substantially U shape, and the top portions of the support members 10. A connecting member 11 connected to each other, a earth retaining plate 13 made up of a large number of rods 12 arranged in parallel on the one side of the supporting member 10 with the connecting member 11 as a boundary, and the opposite side of the supporting member 10 And a flexible ground plate 14 fixed to the lower end of the substrate by welding or the like.

本実施例の土留用具９を傾斜した地盤２の表面に対して設置する場合には、図７に示したように、土留板１３を設けた側を山側へ向けて地盤２上の所定位置に載置する。これにより、支持部材１０の反対側の下端部に固着された接地板１４は地盤２の谷側の表面に接地され、支持部材１０の谷側に関する設置作業は完了する。しかる後、アンカーピン４を土留板１３を構成する下部の棒材１２の近傍に打込み、そのアンカーピン４の上端部に折曲げ形成したＬ字状などの掛止部をその棒材１２に掛止して、土留板１３の下部を地盤２に対して固定する。すなわち、本実施例の土留用具９の設置に際しては、傾斜した地盤２の表面の所定の設置位置に載置し、下部の棒材１２にアンカーピン４の掛止部を掛止させて土留板１３の下部を地盤２に対して固定するだけで設置作業が完了し、土留用具９をきわめて簡便に設置することができる。なお、前述のように、アンカーピン４によって支持部材１０の山側下端部を固定することにより、土留板１３の下部を地盤２に対して固定するようにしてもよい。また、以上の説明では、土留用具９を地盤２上の所定位置に載置し、その載置状態で後からアンカーピン４を打込んで固定する場合を示したが、先にアンカーピン４を打込んでおき、その打込まれたアンカーピン４の掛止部に対して後から土留板１３側を掛止するようにして土留用具９を設置する作業手順も可能である。   When installing the earth retaining device 9 of this embodiment against the surface of the inclined ground 2, as shown in FIG. 7, the side on which the earth retaining plate 13 is provided faces the mountain side and is in a predetermined position on the ground 2. Place. Thereby, the grounding plate 14 fixed to the lower end portion on the opposite side of the support member 10 is grounded to the surface on the valley side of the ground 2, and the installation work related to the valley side of the support member 10 is completed. After that, the anchor pin 4 is driven in the vicinity of the lower bar 12 constituting the retaining plate 13, and an L-shaped hooking portion bent at the upper end of the anchor pin 4 is hung on the bar 12. Stop and fix the lower part of the retaining plate 13 to the ground 2. That is, when installing the earth retaining device 9 of the present embodiment, the earth retaining plate 9 is placed at a predetermined installation position on the surface of the inclined ground 2 and the latching portion of the anchor pin 4 is engaged with the lower bar 12. Installation work is completed only by fixing the lower part of 13 with respect to the ground 2, and the earth retaining implement 9 can be installed very simply. As described above, the lower portion of the retaining plate 13 may be fixed to the ground 2 by fixing the lower end of the mountain side of the support member 10 with the anchor pin 4. In the above description, the earth retaining device 9 is placed at a predetermined position on the ground 2 and the anchor pin 4 is driven and fixed later in the placement state. A work procedure is also possible in which the earth retaining tool 9 is installed so that the anchor plate 4 side is later engaged with the anchor portion of the anchor pin 4 that has been implanted.

１：土留用具、２：地盤、３：客土、４：アンカーピン、５：支持部材、６：連結部材、７：土留板、８：接地板、９：土留用具、１０：支持部材、１１：連結部材、１２：棒材、１３：土留板、１４：接地板   1: earth retaining device, 2: ground, 3: soil, 4: anchor pin, 5: support member, 6: connecting member, 7: earth retaining plate, 8: ground plate, 9: earth retaining device, 10: supporting member, 11 : Connecting member, 12: Bar, 13: Earth retaining plate, 14: Ground plate

Claims (4)

略Ｕ字状又は略Ｖ字状に折曲げ形成した棒材からなる複数の支持部材の各頂部を連結部材にて連結し、その連結部材を境に前記支持部材の片側に多数の開孔部を備えた土留板を支持するとともに、前記支持部材の反対側の下端部に可撓性を有する接地板を固着し、その接地板を傾斜した地盤表面に接地させるとともに、前記土留板の下部をアンカーピンにより地盤に対して固定した上、前記地盤上に植生用の客土を供給することを特徴とする客土用土留方法。   The top portions of a plurality of support members made of a bar material bent into a substantially U shape or a substantially V shape are connected by a connecting member, and a large number of openings are formed on one side of the supporting member with the connecting member as a boundary. A grounding plate having flexibility is fixed to a lower end portion on the opposite side of the supporting member, and the grounding plate is grounded on the inclined ground surface, and a lower portion of the retaining plate is A soil retaining method for land for soil, wherein the soil for vegetation is supplied onto the ground after being fixed to the ground with anchor pins. 略Ｕ字状又は略Ｖ字状に折曲げ形成した棒材からなる複数の支持部材の各頂部を連結部材にて連結し、その連結部材を境に前記支持部材の片側に多数の開孔部を有する土留板を支持するとともに、前記支持部材の反対側の下端部に可撓性を有する接地板を固着し、前記土留板の下部を地盤に対して固定するアンカーピンを備えたことを特徴とする客土用土留用具。   The top portions of a plurality of support members made of a bar material bent into a substantially U shape or a substantially V shape are connected by a connecting member, and a large number of openings are formed on one side of the supporting member with the connecting member as a boundary. A grounding plate having flexibility is fixed to a lower end portion on the opposite side of the support member, and an anchor pin for fixing the lower portion of the soil retaining plate to the ground is provided. A soil retaining tool for customer land. 前記土留板を網状部材から構成したことを特徴とする請求項２に記載の客土用土留用具。   The soil retaining device for customer soil according to claim 2, wherein the retaining plate is composed of a net-like member. 前記土留板を間隔をあけて平行に並べた多数の棒材から構成したことを特徴とする請求項２に記載の客土用土留用具。   3. The earth retaining tool for customer soil according to claim 2, wherein the earth retaining plate is composed of a large number of bars arranged in parallel at intervals.
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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06207413A (en) * 1992-09-25 1994-07-26 Onoakiragumi:Kk Tree planting method for construction on slope
JPH09256374A (en) * 1996-03-22 1997-09-30 Shibaken:Kk Greening bedrock construction method to slope

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06207413A (en) * 1992-09-25 1994-07-26 Onoakiragumi:Kk Tree planting method for construction on slope
JPH09256374A (en) * 1996-03-22 1997-09-30 Shibaken:Kk Greening bedrock construction method to slope

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