JP2011084941A - Vertical surface collapse prevention structure - Google Patents

Vertical surface collapse prevention structure Download PDF

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JP2011084941A
JP2011084941A JP2009238476A JP2009238476A JP2011084941A JP 2011084941 A JP2011084941 A JP 2011084941A JP 2009238476 A JP2009238476 A JP 2009238476A JP 2009238476 A JP2009238476 A JP 2009238476A JP 2011084941 A JP2011084941 A JP 2011084941A
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steel
vertical
pseudo stone
stone panel
horizontal frame
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JP5211010B2 (en
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Masatoshi Tanaka
雅敏 田中
Naruto Terada
成人 寺田
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Tanaka:Kk
株式会社田中
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<P>PROBLEM TO BE SOLVED: To provide a vertical surface collapse prevention structure which is formed of blocks made of a hard material such as concrete and constructed without using a heavy machine by reducing the weight and size of the blocks. <P>SOLUTION: This vertical surface collapse prevention structure is configured by arranging artificial stone panels A adjacent to each other on a vertical surface and connecting and fixing steel wall surface members B to the artificial stone panels A. The artificial stone panel A has a unit weight of approximately 60 kg or less, and includes a rear plate and a plurality of artificial stones made of a hard material which are integrally formed on the rear plate. The artificial stones are dividedly arranged by lattice-like recessed grooves linearly crossing each other. The steel wall surface member B is formed of lattice-like reinforcements which are arranged in a lattice shape so as to be fitted to the lattice-like recessed grooves of the artificial stone panels A. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

本発明は、垂直面の崩落を防止する地盤構造に関する。   The present invention relates to a ground structure that prevents collapse of a vertical surface.
従来、斜面の崩落を防止する地盤構造として、コンクリートブロックを斜面に沿って埋設する方法やコンクリートにより地表を固める方法が採用されている。また、下記特許文献1又は2に示すように、緑化推進及び美観向上の目的を兼ねて、斜面に格子鉄筋による土留め柵を埋設し、植生シートや植生ネットを利用して植物を繁殖させ、植物の根により地固めする方法が採用されている。   Conventionally, as a ground structure for preventing the collapse of a slope, a method of embedding a concrete block along the slope or a method of solidifying the ground surface with concrete has been adopted. In addition, as shown in Patent Document 1 or 2 below, for the purpose of greening promotion and aesthetic improvement, earth retaining fences with lattice reinforcing bars are embedded on the slope, and plants are propagated using vegetation sheets and vegetation nets, A method of consolidation with plant roots is used.
しかしながら、上記のようなコンクリートブロックによる斜面崩落防止は、コンクリートブロックが重量物であるため、その施工が重機などを使用した大がかりなものとなる欠点がある。また、傾斜面に植生することにより土留めを行う方法においては景観は良好であり、緑化が推進される利点があるが、雨水などの流水により土砂が流出するおそれがあり、また、植生不良や植生過多による雑草繁茂の対策問題が発生することもあり、そのための防護策を講じる必要があった。   However, the prevention of slope collapse by the concrete block as described above has a drawback that the construction is heavy using a heavy machine because the concrete block is heavy. In addition, in the method of retaining soil by vegetation on an inclined surface, the landscape is good and there is an advantage that greening is promoted, but there is a possibility that sediment will flow out by running water such as rainwater, and vegetation failure and Measures of weed overgrowth may occur due to excessive vegetation, and it was necessary to take protective measures.
そこで、出願人は、上記の課題を解決するために、特願2008−203523で特定される「斜面崩落防止構造」の発明を提案し、当該発明は基本的にはコンクリートブロックによる斜面崩落防止構造であるが、コンクリートブロックを軽量化及び小型化し、重機を使用せずに施工ができる斜面崩落防止構造を提供する目的を達成した。   Therefore, in order to solve the above-mentioned problems, the applicant has proposed the invention of the “slope collapse prevention structure” specified in Japanese Patent Application No. 2008-203523, and the invention is basically a slope collapse prevention structure using a concrete block. However, the purpose of providing a structure that prevents the collapse of the slope by reducing the weight and size of the concrete block and enabling construction without using heavy machinery has been achieved.
特開2002−121742号公報JP 2002-121742 A 特開2002−88766号公報JP 2002-88766 A
しかしながら、斜面に対しては上記の「斜面崩落防止構造」により、上記の課題が解消されるが、垂直面における崩落に対しても、重機を使用せずに施工ができる必要が生じてきた。   However, for the slope, the above-described “slope collapse prevention structure” solves the above problem, but it has become necessary to perform construction without using heavy equipment even for a collapse on a vertical surface.
本発明は、上記の実情に鑑みてなされたものであり、基本的にはコンクリートブロックによる垂直面崩落防止構造であるが、コンクリートブロックを軽量化及び小型化し、重機を使用せずに施工ができる垂直面崩落防止構造を提供することを目的とする。   The present invention has been made in view of the above circumstances, and is basically a vertical surface collapse prevention structure using a concrete block. However, the concrete block can be reduced in weight and size, and can be constructed without using heavy machinery. An object is to provide a structure for preventing vertical surface collapse.
本発明に係る垂直面崩落防止構造は、垂直面上に擬石パネルが並置され、該擬石パネルに鋼製壁面材が連結固定されてなる垂直面崩落防止構造であって、前記擬石パネルは、その1単位の重量が約60kg以下であって、背面板と、該背面板上に一体的に形成された複数の硬質材、例えばコンクリート等よりなる擬石とからなり、各擬石は直線状に交差する格子状凹溝により区画配列されており、前記鋼製壁面材は、前記擬石パネルの格子状凹溝に嵌合するように格子状に配列した格子状鉄筋よりなることを特徴とするものである。なお、擬石がコンクリート製である場合の1単位の大きさとしては、例えば、幅1m以下、高さ60cm以下、厚さ10cm以下が考えられる。   The vertical surface collapse prevention structure according to the present invention is a vertical surface collapse prevention structure in which a pseudo stone panel is juxtaposed on a vertical surface, and a steel wall material is connected and fixed to the pseudo stone panel. Each unit has a weight of about 60 kg or less, and is composed of a back plate and a plurality of hard materials integrally formed on the back plate, for example, a pseudo stone made of concrete or the like, and each pseudo stone crosses linearly. The steel wall surface material is composed of grid reinforcing bars arranged in a grid pattern so as to fit into the grid-shaped concave grooves of the pseudo stone panel. . In addition, as the size of one unit when the pseudo stone is made of concrete, for example, a width of 1 m or less, a height of 60 cm or less, and a thickness of 10 cm or less can be considered.
また、前記の構成において、前記鋼製壁面材は、その下端に土中に位置する水平フレームを備えると共に水平フレームに対して垂直に起立しており、鋼製壁面材上には押さえ鉄筋が配され、該押さえ鉄筋と水平フレームとを連結して鋼製壁面材の立設状態を固定する支持軸が設けられている構成としてもよい。   In the above-mentioned configuration, the steel wall surface material includes a horizontal frame located in the soil at the lower end thereof and stands upright with respect to the horizontal frame, and a holding reinforcing bar is disposed on the steel wall surface material. In addition, a support shaft that fixes the standing state of the steel wall material by connecting the holding reinforcing bar and the horizontal frame may be provided.
本発明に係る垂直面崩落防止構造は、上記のように構成したことにより、前記擬石パネルは軽量であるため2人までの人員で持ち運びや取り付け等の取扱いが可能であり、重機を使用する必要がない。また、格子状鉄筋よりなる鋼製壁面材に対して、擬石パネルの格子状凹溝を嵌合させて連結固定されているので、垂直面から容易に離脱するおそれがない。また、垂直面の表面上では擬石が敷き詰められた状態を呈するので、景観が良い利点がある。水平フレーム、押さえ鉄筋及び支持軸を備えた構成としたときには、固定が強固になる利点がある。   The vertical surface collapsing prevention structure according to the present invention is configured as described above, so that the pseudo stone panel is lightweight, so it can be handled and installed by up to two people, and it is necessary to use heavy machinery. There is no. In addition, since the grid-like concave grooves of the pseudo stone panel are fitted and fixed to the steel wall material made of the grid-like reinforcing bars, there is no possibility of being easily detached from the vertical plane. Moreover, since the state where the pseudo stone is spread on the surface of the vertical surface is exhibited, there is an advantage that the landscape is good. When a structure including a horizontal frame, a holding reinforcing bar, and a support shaft is used, there is an advantage that the fixation becomes strong.
実施例1に係る垂直面崩落防止構造に使用される擬石パネル1単位の正面図である。It is a front view of 1 unit of the pseudo stone panel used for the vertical surface collapse prevention structure which concerns on Example 1. FIG. 実施例1に係る垂直面崩落防止構造に使用される擬石パネル1単位の斜視図である。1 is a perspective view of a unit of a pseudo stone panel used in a vertical surface collapse prevention structure according to Example 1. FIG. 実施例1に係る垂直面崩落防止構造に使用される鋼製壁面材の斜視図である。It is a perspective view of the steel wall surface material used for the vertical surface collapsing prevention structure which concerns on Example 1. FIG. 実施例1に係る垂直面崩落防止構造に使用される鋼製壁面材に擬石パネルを取り付けた状態を表面側から表した斜視図である。It is the perspective view which represented the state which attached the pseudo stone panel to the steel wall surface material used for the vertical surface collapse prevention structure which concerns on Example 1 from the surface side. 図4に示す状態を背面側から表した斜視図である。It is the perspective view which represented the state shown in FIG. 4 from the back side. 図4及び図5に示す状態において、支持軸を設けた状態を表面側から表した斜視図である。In the state shown in FIG.4 and FIG.5, it is the perspective view which represented the state which provided the support shaft from the surface side. 図6に示す状態を背面側から表した斜視図である。It is the perspective view which represented the state shown in FIG. 6 from the back side. 図6に示す状態において、土砂流出防止材を取り付けて土砂を投入した状態を示す側面図である。In the state shown in FIG. 6, it is a side view which shows the state which attached the earth and sand outflow prevention material and thrown in earth and sand. 実施例1に係る垂直面崩落防止構造に使用される擬石パネルを取り付けた鋼製壁面材を2段積構成にした状態を示す斜視図である。It is a perspective view which shows the state which made the steel wall surface material which attached the pseudo stone panel used for the vertical surface collapsing prevention structure which concerns on Example 1 into the 2 step | paragraph structure. 図9に示す状態の側面図である。FIG. 10 is a side view of the state shown in FIG. 9. 実施例2に係る垂直面崩落防止構造に使用される鋼製壁面材に擬石パネルを取り付けた状態において、支持軸を設けた状態を背面側から表した斜視図である。It is the perspective view which represented the state which provided the support shaft in the state which attached the pseudo stone panel to the steel wall surface material used for the vertical surface collapse prevention structure which concerns on Example 2 from the back side. 図11に示す状態において、土砂流出防止材を取り付けて土砂を投入した状態を示す側面図である。In the state shown in FIG. 11, it is a side view which shows the state which attached the earth and sand outflow prevention material, and thrown in earth and sand. 実施例3に係る垂直面崩落防止構造の施工例であって、施工完了状態における堤体の堤内側の概略断面図である。It is a construction example of the vertical surface collapsing prevention structure which concerns on Example 3, Comprising: It is a schematic sectional drawing inside the bank of a bank body in a construction completion state. 堤脚水路を示す部分斜視図である。It is a fragmentary perspective view which shows an embankment waterway. 堤内側の堤体端部と堤脚水路との間において、堤体端部上に鋼製壁面材を立設した状態を背面側から表した部分斜視図である。It is the fragmentary perspective view which represented the state which stood the steel wall surface material on the bank body edge part between the bank body edge part and the bank pier waterway inside a bank from the back side. 鋼製壁面材に擬石パネルを嵌め込んでいく状態を表面側から表した部分斜視図である。It is the fragmentary perspective view showing the state which inserts a pseudo stone panel in steel wall materials from the surface side. 鋼製壁面材に擬石パネルを嵌め込んで支持軸により支持した状態を背面側から表した部分斜視図である。It is the fragmentary perspective view which represented the state which inserted the pseudo stone panel in the steel wall material, and was supported by the support shaft from the back side. 図17に示す状態において、擬石パネルの背面側水平フレーム上に土砂を投入している状態を表す部分斜視図である。FIG. 18 is a partial perspective view showing a state in which earth and sand are put on the back side horizontal frame of the pseudo stone panel in the state shown in FIG. 17. 図18に示す状態から擬石パネルの背面側水平フレーム上に土砂を投入し終わって整地した状態を表す部分斜視図である。FIG. 19 is a partial perspective view illustrating a state where the earth and sand have been thrown into the back side horizontal frame of the pseudo stone panel from the state illustrated in FIG. 図19に示す状態において、整地上に盛土を積み上げ、芝張りをした完成状態を示す部分斜視図である。In the state shown in FIG. 19, it is a partial perspective view which shows the completed state which piled up the embankment on the leveling and laid the lawn. 図20に示す完成状態を表面側から見た部分斜視図である。It is the fragmentary perspective view which looked at the completion state shown in FIG. 20 from the surface side.
以下に本発明の一実施例を添付の図面に基づいて説明する。   Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings.
図1〜図10は実施例1に関する。   1 to 10 relate to the first embodiment.
図1及び図2に示すAは、擬石パネルであり、図3に示す鋼製壁面材Bと連結して使用するものである。該擬石パネルAは、幅400mm、高さ580mm、厚さ50mmであって、重量約18kgであり、20mm厚の背面板1に30mm高さの複数の擬石2を一体的に形成したコンクリート製のものである。この擬石とは石に似た形状物をコンクリートにより形成したものである。なお、擬石はコンクリート製に限らず、硬質樹脂等の硬質材を採用してもよい。その場合においては、コンクリート製のものに比べて同重量でも大型化できる。また、強度補強のために繊維を混入させたものを使用することが好ましい。さらに、擬石パネルAのサイズ及び重量は上記のものに限られるものではなく、幅300mm〜500mm、高さ400mm〜600mm、厚さ40mm〜70mm、重量15kg〜25kgの人力により運べる程度の範囲であればよい。   A shown in FIGS. 1 and 2 is a pseudo stone panel, which is used by being connected to the steel wall material B shown in FIG. The pseudo stone panel A has a width of 400 mm, a height of 580 mm, a thickness of 50 mm, a weight of about 18 kg, and is made of concrete in which a plurality of pseudo stones 2 having a height of 30 mm are integrally formed on a back plate 1 having a thickness of 20 mm. Is. This pseudo stone is a concrete that is shaped like stone. The pseudo stone is not limited to concrete but may be a hard material such as a hard resin. In that case, the size can be increased even with the same weight as compared with the concrete one. Moreover, it is preferable to use what mixed the fiber for reinforcement | strengthening. Further, the size and weight of the pseudo stone panel A are not limited to those described above, but may be within a range that can be carried by human power having a width of 300 mm to 500 mm, a height of 400 mm to 600 mm, a thickness of 40 mm to 70 mm, and a weight of 15 kg to 25 kg. That's fine.
そして、前記各擬石2は、縦横に直線状に交差する格子状凹溝3により区画して横6列縦6段を1単位として縦横に配列されている。この擬石パネルAには、下から1段目〜4段目の各境界及び5段目と6段目との境界に鋼製壁面板Bを連結固定するための切り欠き孔4が形成されている。また、擬石パネルAには、その上から2段目において3箇所の切り欠き孔5が形成されており、後述する支持軸が挿入できるようになっており、この2段目においては擬石を半裁して形成した横広幅溝6が設けられ、前記支持軸と連結するための後述する押さえ鉄筋が添設できるように構成されている。なお、鋼製壁面板Bを連結固定するための切り欠き孔4及び支持軸が挿入できる切り欠き孔5は上記の配置構成に限られるものではない。   The pseudo stones 2 are partitioned by lattice-shaped grooves 3 that intersect vertically and horizontally in a straight line, and are arranged vertically and horizontally with 6 rows and 6 columns as one unit. In the pseudo stone panel A, notches 4 for connecting and fixing the steel wall plate B are formed at the boundaries of the first to fourth stages and the boundaries of the fifth and sixth stages from the bottom. Yes. In addition, the pseudo stone panel A is formed with three cutout holes 5 in the second stage from the top, so that a support shaft to be described later can be inserted. In the second stage, the pseudo stone is half-cut. A laterally wide groove 6 formed as described above is provided, and is configured such that a presser bar which will be described later for connecting to the support shaft can be attached. The notch hole 4 for connecting and fixing the steel wall plate B and the notch hole 5 into which the support shaft can be inserted are not limited to the above arrangement.
鋼製壁面材Bは、図3に示すように、前記擬石パネルAの格子状凹溝3に嵌合するように縦方向の鉄筋10と横方向の鉄筋11とを格子状に配列した格子状鉄筋よりなる。また、該鋼製壁面材Bは、その下端に土中に位置する水平フレーム12を備えており、鋼製壁面材Bは水平フレームに対して垂直に起立している。該水平フレーム12は、鋼製壁面材Bを構成する縦方向の鉄筋10を屈曲して水平方向に延長形成した縦方向水平鉄筋13と、この縦方向水平鉄筋13を連結する横方向水平鉄筋14とにより形成されている。なお、この水平フレーム12は、垂直面を形成する現場の状況により適宜延長及び連設可能である。   As shown in FIG. 3, the steel wall material B has a lattice shape in which longitudinal reinforcing bars 10 and transverse reinforcing bars 11 are arranged in a lattice pattern so as to be fitted in the lattice-like concave grooves 3 of the pseudo stone panel A. It consists of reinforcing bars. Further, the steel wall surface material B includes a horizontal frame 12 located in the soil at the lower end thereof, and the steel wall surface material B stands vertically with respect to the horizontal frame. The horizontal frame 12 includes a vertical horizontal reinforcing bar 13 formed by bending a vertical reinforcing bar 10 constituting the steel wall material B and extending in the horizontal direction, and a horizontal horizontal reinforcing bar 14 connecting the vertical horizontal reinforcing bar 13. And is formed by. In addition, this horizontal frame 12 can be extended and connected suitably according to the situation of the field which forms a vertical surface.
図4及び図5に、上記擬石パネルAと鋼製壁面材Bとの連結構造が示される。まず、鋼製壁面材Bを立設し、1単位の擬石パネルAを、鋼製壁面材Bの格子状鉄筋と擬石パネルAの格子状凹溝3とが嵌合するように嵌め込み、連結固定具20により固定する。該連結固定具20は、先端がフック状に屈曲したフック部21とネジ切りされた基部22とからなる軸材23と、ワッシャー24と基部22に羅着されるナット25とにより構成される。該連結固定具20により、鋼製壁面材Bに擬石パネルAを連結固定するには、フック部21を鋼製壁面材Bの縦方向の鉄筋10(横方向の鉄筋11でも可)に引っ掛けて基部22を擬石パネルAの背面側に突出させ、基部22にワッシャー24を挿通してナット25を羅合して締め付けることにより、鋼製壁面材Bと擬石パネルAとがフック部21とワッシャー24及びナット25とにより強固に挟まれて連結固定される。   4 and 5 show a connection structure between the pseudo stone panel A and the steel wall material B. FIG. First, the steel wall material B is erected, and one unit of pseudo stone panel A is fitted so that the lattice reinforcing bars of the steel wall material B and the lattice concave grooves 3 of the pseudo stone panel A are fitted and fixed. Fix with the tool 20. The connecting fixture 20 includes a shaft member 23 including a hook portion 21 whose tip is bent like a hook and a threaded base portion 22, a washer 24, and a nut 25 attached to the base portion 22. In order to connect and fix the pseudo stone panel A to the steel wall surface material B by the connection fixture 20, the hook portion 21 is hooked on the vertical reinforcing bar 10 (the horizontal reinforcing bar 11 is also acceptable) of the steel wall surface material B. By projecting the base portion 22 to the back side of the pseudo stone panel A, inserting the washer 24 into the base portion 22 and tightening the nut 25 together, the steel wall material B and the pseudo stone panel A are connected to the hook portion 21 and the washer 24. And the nut 25 is firmly sandwiched and connected and fixed.
図6〜図8は、擬石パネルAを連結固定した鋼製壁面材Bと鋼製壁面材Bの一部である水平フレーム12との固定構造を示す。擬石パネルAの背面側には土砂が投入されるので、その重みにより水平フレーム12に対して擬石パネルAが外方に倒れる方向に荷重が掛かる。この荷重を持ちこたえるために、直線状の支持軸30を架け渡す。すなわち、図6に示すように、擬石パネルAを連結固定した鋼製壁面材Bに対して、擬石2を半裁することにより形成した横広幅溝6の部分に、鋼製壁面材Bの縦方向の鉄筋10を跨ぐように押さえ鉄筋31を架け渡すと共に、直線状の支持軸30の一方の端部に形成した環状端部30aに押さえ鉄筋31を挿通する。また、図7に示すように、水平フレーム12の一部に形成した凸状部32の下を潜るように係止鉄筋33を配し、支持軸30の他方の端部に形成した環状端部30bにこの係止鉄筋33を挿通して固定することにより、支持軸30は擬石パネルAが土砂投入により拡開して外方に傾斜することを防止する。なお、図8に示すように、擬石パネルAの背面側に土砂Cを投入する前に、擬石パネルAの背面に土砂流出防止材として、種々の透水性シート40を配設しておく。このように構成することにより、雨水等の水分のみが流出し、擬石パネルAから土砂が流出することがないので、流水による垂直面崩壊を防止できる。   6 to 8 show a fixing structure of the steel wall surface material B to which the pseudo stone panel A is connected and fixed and the horizontal frame 12 which is a part of the steel wall surface material B. FIG. Since earth and sand are put into the back side of the pseudo stone panel A, a load is applied to the horizontal frame 12 in a direction in which the pseudo stone panel A falls to the outside due to the weight. In order to hold this load, the linear support shaft 30 is bridged. That is, as shown in FIG. 6, the longitudinal direction of the steel wall material B is formed in the portion of the lateral wide groove 6 formed by half-cutting the pseudostone 2 with respect to the steel wall material B to which the pseudostone panel A is connected and fixed. The presser reinforcing bar 31 is bridged over the reinforcing bar 10, and the presser reinforcing bar 31 is inserted into the annular end 30 a formed at one end of the linear support shaft 30. As shown in FIG. 7, an annular end portion formed at the other end portion of the support shaft 30 by disposing a locking rebar 33 so as to dive under the convex portion 32 formed at a part of the horizontal frame 12. By inserting the fixing reinforcing bars 33 into 30b and fixing them, the support shaft 30 prevents the pseudo-stone panel A from expanding due to earth and sand and tilting outward. In addition, as shown in FIG. 8, before introducing the earth and sand C to the back side of the pseudo stone panel A, various water-permeable sheets 40 are disposed on the back side of the pseudo stone panel A as an earth and sand outflow prevention material. By comprising in this way, since only water | moisture content, such as rain water, flows out and earth and sand do not flow out from the pseudolite panel A, the vertical surface collapse by flowing water can be prevented.
次に、垂直面崩落防止構造の施工法について説明する。まず、背面板1上に複数のコンクリート製の擬石2を直線状に交差する格子状凹溝3により区画配列して背面板1と一体化した擬石パネルAを形成しておく。また、前記擬石パネルAの格子状凹溝3に嵌合するように格子状に配列した格子状鉄筋10,11よりなる鋼製壁面材Bを形成しておく。そして、垂直面を形成しようとする水平地盤に、水平フレーム12を載置して、鋼製壁面材Bを立設する。次に鋼製壁面材Bを構成する格子状鉄筋10,11を擬石パネルAの格子状凹溝3に嵌合させ、連結具20により鋼製壁面材Bと擬石パネルAとを連結固定する。そして、鋼製壁面材B上に押さえ鉄筋31を配し、該押さえ鉄筋31と水平フレーム12とを支持軸30により連結して、鋼製壁面材Bの立設状態を固定支持する。次に、前記擬石パネルAの裏面全面に土砂流出防止材である透水性シート40を配設固定し、水平地盤に載置した水平フレーム12上に土砂Cを投入し、擬石パネルAの上端まで埋め尽くすことにより、図8に示す垂直面崩落防止構造が完成する。   Next, a construction method of the vertical surface collapse prevention structure will be described. First, a pseudo stone panel A integrated with the back plate 1 is formed by partitioning and arranging a plurality of concrete pseudo stones 2 on the back plate 1 by lattice-shaped concave grooves 3 intersecting linearly. Further, a steel wall material B made of grid-like reinforcing bars 10 and 11 arranged in a grid so as to be fitted into the grid-like concave grooves 3 of the pseudo stone panel A is formed. And the horizontal frame 12 is mounted in the horizontal ground which is going to form a vertical surface, and the steel wall surface material B is erected. Next, the lattice-like reinforcing bars 10 and 11 constituting the steel wall material B are fitted into the lattice-shaped concave grooves 3 of the pseudo stone panel A, and the steel wall material B and the pseudo stone panel A are connected and fixed by the connector 20. Then, the presser reinforcing bar 31 is arranged on the steel wall material B, and the presser reinforcing bar 31 and the horizontal frame 12 are connected by the support shaft 30 to fix and support the standing state of the steel wall material B. Next, a water-permeable sheet 40, which is an earth and sand outflow prevention material, is disposed and fixed on the entire back surface of the pseudo stone panel A, and the earth and sand C is put on the horizontal frame 12 placed on the horizontal ground, until the upper end of the pseudo stone panel A is reached. By filling up, the vertical surface collapse prevention structure shown in FIG. 8 is completed.
図9及び図10は、上記の垂直面崩落防止構造を2段積み構成したものである。すなわち、上述した方法により形成した垂直面崩落防止構造における土砂Cにより形成された水平地盤に、水平フレーム12’を載置して、鋼製壁面材B’を立設し、鋼製壁面材B’を構成する格子状鉄筋10’,11’を擬石パネルA’に嵌合させ、連結具20’により鋼製壁面材B’と擬石パネルA’とを連結固定し、鋼製壁面材B’上に押さえ鉄筋31’を配し、該押さえ鉄筋31’と水平フレーム12’とを支持軸30’により連結して、鋼製壁面材B’の立設状態を固定支持し、擬石パネルA’の裏面全面に土砂流出防止材40’を配設固定し、水平地盤に載置した水平フレーム12’上において、擬石パネルA’の上端まで土砂C’を投入して2段目の垂直面崩落防止構造を形成する。   9 and 10 show a structure in which the above vertical surface collapse prevention structure is stacked in two stages. That is, the horizontal frame 12 ′ is placed on the horizontal ground formed by the earth and sand C in the vertical surface collapse prevention structure formed by the above-described method, and the steel wall material B ′ is erected, and the steel wall material B The lattice-like reinforcing bars 10 'and 11' constituting 'are fitted to the pseudo stone panel A', the steel wall material B 'and the pseudo stone panel A' are connected and fixed by the connecting tool 20 ', and the steel wall material B'. A holding rebar 31 'is arranged on the upper side, the holding rebar 31' and the horizontal frame 12 'are connected by a support shaft 30', and the standing state of the steel wall material B 'is fixedly supported, and the pseudo stone panel A' Sediment prevention material 40 'is disposed and fixed on the entire back surface of the earth, and on the horizontal frame 12' placed on the horizontal ground, earth and sand C 'is introduced to the upper end of the pseudo stone panel A' to collapse the vertical surface of the second stage. Form a prevention structure.
図11及び図12は実施例2に関する。   11 and 12 relate to the second embodiment.
本実施例は、支持軸の変更例であり、それ以外の構成は、実施例1と同様である。すなわち、図11及び図12は、擬石パネルAを連結固定した鋼製壁面材Bと鋼製壁面材Bの一部である水平フレーム12との固定構造を示す。擬石パネルAの背面側には土砂が投入されるので、その重みにより水平フレーム12に対して擬石パネルAが外方に倒れる方向に荷重が掛かる。この荷重を持ちこたえるために、くの字状に屈曲させた支持軸130を架け渡す。すなわち、実施例1における図6に示したように、擬石パネルAを連結固定した鋼製壁面材Bに対して、擬石2を半裁することにより形成した横広幅溝6の部分に、鋼製壁面材Bの縦方向の鉄筋10を跨ぐように押さえ鉄筋31を架け渡すと共に、図11に示すように、くの字状の支持軸130の一方の端部に形成した環状端部130aに押さえ鉄筋31を挿通する。また、図11及び図12に示すように、くの字状支持軸130の他方の端部に形成した環状端部130bに水平フレーム12の適宜の横方向の鉄筋133を挿通して固定することにより、支持軸130は擬石パネルAが土砂投入により拡開して外方に傾斜することを防止する。なお、図12に示すように、擬石パネルAの背面側に土砂Cを投入する前に、擬石パネルAの背面に土砂流出防止材として、種々の透水性シート40を配設しておく。このように構成することにより、雨水等の水分のみが流出し、擬石パネルAから土砂が流出することがないので、流水による傾斜面崩壊を防止できる。   The present embodiment is a modification example of the support shaft, and the other configuration is the same as that of the first embodiment. That is, FIG.11 and FIG.12 shows the fixation structure of the horizontal wall 12 which is a part of steel wall surface material B which connected and fixed the pseudo stone panel A, and the steel wall surface material B. FIG. Since earth and sand are put into the back side of the pseudo stone panel A, a load is applied to the horizontal frame 12 in a direction in which the pseudo stone panel A falls to the outside due to the weight. In order to withstand this load, the support shaft 130 bent in a dogleg shape is bridged. That is, as shown in FIG. 6 in the first embodiment, the steel wall surface B is formed on the portion of the horizontal wide groove 6 formed by cutting the pseudo stone 2 in half with respect to the steel wall material B to which the pseudo stone panel A is connected and fixed. As shown in FIG. 11, the holding rebar 31 is bridged to the annular end portion 130a formed at one end of the U-shaped support shaft 130. 31 is inserted. Further, as shown in FIGS. 11 and 12, an appropriate lateral reinforcing bar 133 of the horizontal frame 12 is inserted and fixed to an annular end portion 130b formed at the other end portion of the U-shaped support shaft 130. Thus, the support shaft 130 prevents the pseudo-stone panel A from expanding due to earth and sand and tilting outward. In addition, as shown in FIG. 12, before introducing the earth and sand C to the back surface side of the pseudo stone panel A, various water-permeable sheets 40 are disposed on the back surface of the pseudo stone panel A as an earth and sand outflow prevention material. By comprising in this way, since only water | moisture content, such as rain water, flows out and earth and sand do not flow out from the pseudolite panel A, the inclined surface collapse by flowing water can be prevented.
図13〜図21は、実施例3に関するものであり、本実施例は、堤体における垂直面崩落防止構造の施工例を示す。   FIGS. 13-21 is related with Example 3, and a present Example shows the construction example of the vertical surface collapsing prevention structure in a dam body.
図13において、Dは堤体の堤内側を示し、Eは不織布よりなる吸出し防止材であり、当該吸出し防止材Eにより単粒度砕石等の土砂Fを包み込んだ状態で堤体の盛土D1内にドレーンGが形成される。ドレーンGの図において右側の水平部分の端部である堤体端部D2に鋼製壁面材B''及び擬石パネルA''が設置されている。堤体端部D2の外側には堤脚水路である上部開口型のU型側溝Hが配設されており、ドレーンGに集水される雨水や浸漬水などの液体が擬石パネルA''を通過してU型側溝Hに流出し、排水されるように構成されている。この上部開口型のU型側溝Hを設置するドレーンの形態は一般にオープン水路と呼ばれている。なお、堤脚水路はU型側溝に限らず、一般に使用されている側溝も適用可能である。また、ドレーンの形態も図4に示す上記のものに限るものではなく、堤脚水路として片面が透水性のU型側溝を設置し、ドレーンの下部から排水を行う構造、一般にクローズ水路型と呼ばれる形態、堤脚水路として暗渠排水管を設置する構造であり、ドレーンの内部で排水を行う形態のものなど、一般に使用されているドレーンの形態においても適用可能である。   In FIG. 13, D shows the inside of the levee body, E is a sucking prevention material made of a nonwoven fabric, and the sucking prevention material E encloses earth and sand F such as single grain crushed stone in the embankment embankment D1. A drain G is formed. In the drawing of the drain G, a steel wall material B ″ and a pseudolite panel A ″ are installed at the dam body end D2 which is the end of the right horizontal portion. An upper opening type U-shaped side groove H, which is a dike channel, is arranged outside the dam body end D2, and liquids such as rain water and immersion water collected in the drain G are attached to the pseudo stone panel A ″. It passes through the U-shaped side groove H and is configured to be drained. The form of the drain in which the upper opening type U-shaped side groove H is installed is generally called an open water channel. Note that the dike channel is not limited to the U-shaped side groove, and a generally used side groove can also be applied. Further, the form of the drain is not limited to the above-described one shown in FIG. 4, and a structure in which a U-shaped side gutter having a water permeability on one side is installed as a dike channel and water is drained from the lower part of the drain, generally called a closed channel type. It is a structure in which a culvert drainage pipe is installed as a form and a dike channel, and is also applicable to a commonly used drain form such as a form in which drainage is performed inside the drain.
図14〜図21は施工手順の一例を示す。なお、この施工手順は造成地における盛土端部の保護についての施工にも応用できる。図14に示すように、まず、堤体内部の底部の土面D3と頂部H1が面一になるようにU型側溝Hを配設する。次に図15に示すように、U型側溝Hの図において左側の堤体土面D3上に吸出し防止材Eを敷設し、当該吸出し防止材Eの上に水平フレーム212を備えた鋼製壁面材B''を、その垂直面がU型側溝H側になるように向けて設置する。そして該鋼製壁面材B''の背面側、すなわち堤体側から、図16に示すように、擬石パネルA''を嵌め込んで固定し、図17に示すように支持軸230により水平フレーム212と鋼製壁面材B''とを連結して鋼製壁面材B''を支持する。これにより擬石パネルA''は安定して垂直に立設されることになる。なお、鋼製壁面材B''の設置から擬石パネルA''の固定及び支持軸230による鋼製壁面材B''の固定は、実施例1において説明したのと同様である。   14 to 21 show an example of the construction procedure. In addition, this construction procedure can also be applied to construction for protecting the edge of the embankment in the site. As shown in FIG. 14, first, the U-shaped side groove H is arranged so that the soil surface D3 and the top H1 at the bottom inside the bank body are flush with each other. Next, as shown in FIG. 15, a steel wall surface in which a suction prevention material E is laid on the left levee soil surface D3 in the figure of the U-shaped side groove H, and a horizontal frame 212 is provided on the suction prevention material E. The material B ″ is placed with its vertical surface facing the U-shaped side groove H side. Then, from the back side of the steel wall surface material B ″, that is, from the side of the bank body, as shown in FIG. 16, the pseudo stone panel A ″ is fitted and fixed, and the horizontal frame 212 is supported by the support shaft 230 as shown in FIG. And the steel wall material B '' are connected to support the steel wall material B ''. As a result, the pseudo stone panel A ″ is stably erected vertically. In addition, the installation of the steel wall surface material B ″ to the fixation of the pseudo stone panel A ″ and the fixation of the steel wall surface material B ″ by the support shaft 230 are the same as described in the first embodiment.
そして、鋼製壁面材B''に備えられた水平フレーム212上、すなわち吸出し防止材E上に、図18に示すように、ドレーンGを構成する土砂Fを投入し、図19に示すように、投入した土砂Fを転圧して整地する。これによりドレーンGが完成する。この整地された土砂Fの上に不図示の吸出し防止材を敷設し、その上に、図20及び図21に示すように、盛土D1を積み上げ、盛土D1の表面に芝を張れば垂直面崩落防止構造が完成する。   Then, on the horizontal frame 212 provided on the steel wall surface material B ″, that is, on the suction preventing material E, as shown in FIG. 18, the earth and sand F constituting the drain G are introduced, and as shown in FIG. Then, the earth and sand F that has been thrown in is rolled and leveled. Thereby, the drain G is completed. A non-illustrated material for preventing sucking is laid on the ground soil F that has been leveled, and then, as shown in FIG. 20 and FIG. The prevention structure is completed.
本発明に係る垂直面崩落防止構造は、堤体の堤内側における堤体端部の保護や造成地における盛土端部の保護の他、垂直法面における崩落を防止するのに利用することができる。   The vertical surface collapse prevention structure according to the present invention can be used to prevent collapse on the vertical slope, as well as protection of the bank edge at the inner side of the bank and protection of the bank edge at the site of construction. .
A・・・・擬石パネル A’・・・擬石パネル
B・・・・鋼製壁面材 B’・・・鋼製壁面材
C・・・・土砂
1・・・・背面板 2・・・・擬石
3・・・・格子状凹溝 4・・・・鋼製壁面材連結固定用切り欠き孔
5・・・・支軸挿入用切り欠き孔 6・・・・横広幅溝
10・・・縦方向の鉄筋 10’・・縦方向の鉄筋
11・・・横方向の鉄筋 11’・・横方向の鉄筋
12・・・水平フレーム 12’・・水平フレーム
13・・・縦方向水平鉄筋 14・・・横方向水平鉄筋
20・・・連結固定具 20’・・連結固定具
21・・・フック部 22・・・基部
23・・・軸材 24・・・ワッシャー
25・・・ナット 30・・・支持軸
30a・・環状端部 30b・・環状端部
31・・・押さえ鉄筋 31’・・押さえ鉄筋
32・・・凸状部 33・・・係止鉄筋
40・・・透水性シート 40’・・透水性シート
130・・支持軸 130a・環状端部
130b・環状端部 133・・水平フレームの横方向の鉄筋
A''・・・擬石パネル B''・・・鋼製壁面材
D・・・・堤体の堤内側 D1・・・堤体盛土
D2・・・堤体端部 D3・・・堤体土面
E・・・・吸出し防止材 F・・・・土砂
G・・・・ドレーン H・・・・U型側溝
H1・・・U型側溝の頂部
230・・支持軸 212・・水平フレーム
A ... Pseudostone panel A '... Pseudostone panel B ... Steel wall material B' ... Steel wall material C ... Earth and sand 1 .... Back plate 2 .... Pseudo-stones 3 ·································· Notched holes for connecting and fixing steel wall material 5 ··························································· Reinforcing bar 10 '·· Vertical reinforcing bar 11 ··· Horizontal reinforcing bar 11' ·· Horizontal reinforcing bar 12 ··· Horizontal frame 12 '·· Horizontal frame 13 ··· Vertical horizontal reinforcing bar 14 ··・ Horizontal horizontal reinforcing bar 20 ・ ・ ・ Connection fixture 20 ′ ・ ・ Connection fixture 21 ... Hook part 22 ... Base part 23 ... Shaft material 24 ... Washer 25 ... Nut 30 ... Support shaft 30a ··· Ring end 30b ··· Ring end 31 ··· Reinforcing bar 31 '··· Reinforcing bar 32 ··· Convex portion 33 ··· Reinforcing bar 40 ... Permeable sheet 40 '... Permeable sheet 130 ... Support shaft 130a / Annular end part 130b / Annular end part 133 ... Horizontal bar of horizontal frame A''... Pseudo stone panel B''··· Steel wall material D ··· Dike inner wall D1 · · · Embankment embankment D2 · · · Embankment edge D3 · · · Levee body surface E · · · Suction prevention material F ··· Earth and sand G ··· Drain H ··· U-shaped side groove H1 · · · Top of U-shaped side groove 230 · · Support shaft 212 · · Horizontal frame

Claims (2)

  1. 垂直面上に擬石パネルが並置され、該擬石パネルに鋼製壁面材が連結固定されてなる垂直面崩落防止構造であって、
    前記擬石パネルは、その1単位の重量が60kg以下であって、背面板と、該背面板上に一体的に形成された複数の硬質材からなる擬石とからなり、各擬石は直線状に交差する格子状凹溝により区画配列されており、
    前記鋼製壁面材は、前記擬石パネルの格子状凹溝に嵌合するように格子状に配列した格子状鉄筋よりなる、
    ことを特徴する垂直面崩落防止構造。
    A vertical surface collapse prevention structure in which pseudo stone panels are juxtaposed on a vertical surface, and a steel wall material is connected and fixed to the pseudo stone panel,
    The pseudo stone panel has a unit weight of 60 kg or less, and is composed of a back plate and a pseudo stone made of a plurality of hard materials integrally formed on the back plate, and each pseudo stone crosses linearly. It is divided and arranged by latticed grooves that
    The steel wall material is composed of lattice reinforcing bars arranged in a lattice pattern so as to be fitted into the lattice concave grooves of the pseudo stone panel.
    Vertical surface collapse prevention structure characterized by that.
  2. 鋼製壁面材は、その下端に土中に位置する水平フレームを備えると共に水平フレームに対して垂直に起立しており、鋼製壁面材上には押さえ鉄筋が配され、該押さえ鉄筋と水平フレームとを連結して鋼製壁面材の立設状態を固定する支持軸が設けられていることを特徴とする請求項1に記載の垂直面崩落防止構造。   The steel wall material is provided with a horizontal frame located in the soil at the lower end thereof and stands upright with respect to the horizontal frame, and a holding bar is arranged on the steel wall material, and the holding bar and the horizontal frame The vertical surface collapsing prevention structure according to claim 1, wherein a support shaft is provided for connecting the two to each other and fixing a standing state of the steel wall material.
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2991355A1 (en) * 2012-05-29 2013-12-06 Alain Antoniazzi Construction element e.g. brick, for constructing wall, has metal structure folded to form single piece, vertical branch and base that is extended in both sides of branch and locally covered with attachment material layer by resin

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0731946U (en) * 1993-11-19 1995-06-16 環境工学株式会社 Natural revetment, retaining wall structure
JPH10180732A (en) * 1996-12-24 1998-07-07 Chiyoda Tech & Ind Co Ltd Manufacture of matrix-shaped pseudo rock block
JP2010037856A (en) * 2008-08-06 2010-02-18 Tanaka:Kk Slope collapse-preventing structure

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0731946U (en) * 1993-11-19 1995-06-16 環境工学株式会社 Natural revetment, retaining wall structure
JPH10180732A (en) * 1996-12-24 1998-07-07 Chiyoda Tech & Ind Co Ltd Manufacture of matrix-shaped pseudo rock block
JP2010037856A (en) * 2008-08-06 2010-02-18 Tanaka:Kk Slope collapse-preventing structure

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2991355A1 (en) * 2012-05-29 2013-12-06 Alain Antoniazzi Construction element e.g. brick, for constructing wall, has metal structure folded to form single piece, vertical branch and base that is extended in both sides of branch and locally covered with attachment material layer by resin

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