JP3863894B2 - Inspection coil for on-site casting frame formation - Google Patents

Inspection coil for on-site casting frame formation Download PDF

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JP3863894B2
JP3863894B2 JP2004372002A JP2004372002A JP3863894B2 JP 3863894 B2 JP3863894 B2 JP 3863894B2 JP 2004372002 A JP2004372002 A JP 2004372002A JP 2004372002 A JP2004372002 A JP 2004372002A JP 3863894 B2 JP3863894 B2 JP 3863894B2
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frame
coil
mesh
grid
reinforcing bar
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JP2005098106A (en
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昭浩 松永
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日本植生株式会社
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本発明は、例えば道路や造成地などの法面を緑化するようなときに使用される現場打ち法枠形成用の検測枠に関する。   The present invention relates to a measurement frame for forming a field-placed frame used when, for example, a slope such as a road or a developed land is greened.
前記現場打ち法枠工法として、例えば特公昭58−20338号公報に示された「法面安定工法」がある。この工法は、法面に金網などの網状体を敷設した後、この網状体上に鉄筋を格子状に敷設し、この格子状鉄筋にモルタルまたはコンクリート(以下、モルタル等と言う)を吹き付けてモルタル等よりなる格子状法枠を形成するようにしたものであるため、従来のプレハブ式や現場打ち法枠工法などに比べて、施工性や強度に優れているとともに、使用する基材が少なく安価であるといった利点がある。   As the on-site casting method frame construction method, for example, there is a “slope stabilization method” disclosed in Japanese Patent Publication No. 58-20338. In this method, after laying a mesh body such as a wire mesh on the slope, reinforced bars are laid on the mesh body, and mortar or concrete (hereinafter referred to as mortar) is sprayed on the grid reinforcement. Since it is designed to form a grid-like method frame made of, etc., it is superior in workability and strength compared to the conventional prefabricated method and on-site method frame method, etc. There is an advantage such as.
ところで、現行の土木基準では、前記格子状鉄筋を覆うモルタル等の厚み(これを被り厚という)が鉄筋のどの面からも一定以上確保されていることが、所要強度の格子状法枠を得るための品質管理基準として必要とされている。しかしながら、前記現場打ち法枠工法は、型枠を用いない現場打ち法枠工法であるとともに、モルタル等の吹き付けは、法面上の不安定な場所で現場作業として行われることから、格子状鉄筋に対するモルタル等の吹付け厚さや幅が不均一となりやすく、所定寸法の格子状法枠を形成するのに相当の熟練度を要するとともに、格子状法枠の寸法や強度にバラツキを生じることを避けることができなかった。   By the way, in the current civil engineering standards, it is ensured that the thickness of a mortar or the like covering the grid reinforcing bars (which is called the covering thickness) is secured to a certain level or more from any surface of the reinforcing bars to obtain a grid method frame with a required strength. Is needed as a quality control standard. However, the on-site casting method is a on-site casting method that does not use a formwork, and the spraying of mortar and the like is performed as an on-site work in an unstable place on the slope, so that The spraying thickness and width of mortar, etc. are likely to be uneven, require considerable skill to form a grid-like frame with a predetermined size, and avoid variations in the size and strength of the grid-like frame I couldn't.
このようなことから、本出願人は、例えば登録実用新案公報第3008215号にて、型枠を用いない現場打ち法枠工法において、規格通りの寸法および強度を有するモルタルなどよりなる格子状法枠を熟練を要することなく、簡単に形成することのできる法枠形成用の検測枠を提案している。この検測枠は、長さ方向に適宜の間隔をおいて設けられる所定の高さと幅とを有し、かつ、正面視台形状、弓状、三角形状、多角形状、M字形状、凹多角形状の一対の第1部材と、この第1部材どうしを連結する第2部材を備えるとともに、第1部材の高さ方向中間部において一対の脚部を結ぶ方向に鉄筋保持部材を上下2段またはそれ以上の段数に横設したものである。   For this reason, the present applicant, for example, in the registered utility model publication No. 3008215, in the field casting method using a formwork, a grid-like method frame made of mortar having dimensions and strengths as specified. Has proposed a measurement frame for forming a legal frame that can be easily formed without requiring skill. This inspection frame has a predetermined height and width provided at an appropriate interval in the length direction, and has a trapezoidal shape, an arc shape, a triangular shape, a polygonal shape, an M shape, and a concave polygon. A pair of first members having a shape and a second member that connects the first members to each other, and the reinforcing bar holding members are arranged in two upper and lower stages in the direction of connecting the pair of legs at the intermediate portion in the height direction of the first member. It is installed side by side with more than that.
しかしながら、上述のような検測枠では、長さ方向に配置される第1部材同士の間隔よりも鉄筋の長さが大であるため、鉄筋を現地で鉄筋保持部に取り付ける作業が面倒なものとなっていた。つまり、上段側の鉄筋保持部に鉄筋を取り付けるためには、その長尺な鉄筋を、第1部材の上辺と上部鉄筋保持部材との間およびその上部鉄筋保持部材と下部鉄筋保持部材との間に挿通させなければならず、その作業が煩瑣であった。   However, in the inspection frame as described above, since the length of the reinforcing bar is larger than the interval between the first members arranged in the length direction, it is troublesome to attach the reinforcing bar to the reinforcing bar holding part in the field. It was. In other words, in order to attach a reinforcing bar to the reinforcing bar holding part on the upper side, the long reinforcing bar is placed between the upper side of the first member and the upper reinforcing bar holding member and between the upper reinforcing bar holding member and the lower reinforcing bar holding member. The operation was cumbersome.
また、上述の検測枠では、比較的嵩張るため、収納スペースを要し、持ち運びや搬送作業も容易でなく、現地での取り扱い作業性にも難点があった。   Moreover, since the above-mentioned inspection frame is relatively bulky, it requires a storage space, is not easy to carry and carry, and has a problem in handling workability on site.
本発明はこのような実情に鑑みてなされ、現地での施工性が容易で、熟練を要することなく、規格通りの寸法と強度を有する格子状法枠を簡易に形成することができ、かつ、収納スペースを要さず、持ち運びや搬送が容易な現場打ち法枠形成用の検測枠を提供することを目的としている。   The present invention has been made in view of such circumstances, easy on-site workability, without requiring skill, can easily form a lattice method frame having dimensions and strength according to the standard, and The purpose is to provide an inspection frame for on-site casting frame formation that requires no storage space and is easy to carry and transport.
本発明は上述の課題を解決するための手段を以下のように構成している。
すなわち、請求項1に記載の発明では、法面に網状体を敷設した後、この網状体上に鉄筋を格子状に配置し、その鉄筋の上に被せるように配置した検測コイルに前記鉄筋を固定し、その格子状鉄筋にモルタルまたはコンクリートを吹き付けて格子状法枠を形成するために使用される、格子状法枠の形状寸法を規制するための現場打ち法枠形成用の検測コイルであって手方向に適宜な間隔をおいた上凸形状の保形剛性を有する連続パターンに形成されて折りたたみ自在であるとともに、上凸形状の上辺部と、底辺部とを有し、前記底辺部には、網状体上の前記鉄筋を挿入固定するための下方開放の凹状部が形成されていることを特徴としている。
In the present invention, means for solving the above-described problems are configured as follows.
That is, in the first aspect of the present invention, after a mesh body is laid on the slope, rebars are arranged in a grid pattern on the mesh body, and the reinforcing bars are placed on the measurement coil arranged so as to cover the rebars. were fixed, by blowing mortar or concrete in a grid reinforcement of their being used to form a grid-like method frame, gage for cast-in-place method frame formed for restricting the geometry of the lattice-like process frame a coil, is formed with a foldable continuous pattern with a shape retention rigidity of upward convex shape at appropriate intervals to the long side direction, it has a top side portion of the upper convex shape and a bottom portion , before Symbol bottom side portion, it is characterized in that the concave portion of the lower opening for inserting fixing the reinforcing bars on the mesh body is formed.
検測コイルが、上凸形状をなし、かつ保形剛性を有する連続パターンに形成されて折りたたみ自在であることにより、折りたたんでコンパクトにすることができ、取扱い、搬送が容易で、現地に搬入して引き伸して法面上に配置すればよく、敷設がきわめて容易であり、かつその保形剛性により形状精度の高い法枠が得られる。 Gage coils, without the upward convex shape, and by being formed in a continuous pattern foldable der Rukoto having shape-retaining rigidity, folded can be made compact, handling, easy transport is carried into the site Thus, it is only necessary to stretch and dispose it on the slope, and it is very easy to lay and a shape frame with high shape accuracy can be obtained due to its shape retention rigidity.
また、その辺部に下方開放の凹状部を形成してあるので、長尺な鉄筋を検測コイルの方からその凹状部に容易に挿入して結束線により安定に固縛固定することができる。 Moreover, the so is formed a concave portion of the lower opening, to facilitate insertion of the elongated reinforcing bar from under side of the gage coils to the recess for bracing stably fixed by the binding wire at its bottom side portion Can do.
前記凹状部は底辺部だけでなく上辺部形成してもよく、法枠の設計条件や法面の状態等に応じて柔軟に対応することができる。 The concave portion may be formed not only on the bottom side portion but also on the upper side portion , and can be flexibly dealt with in accordance with the design conditions of the frame and the state of the slope.
以下に本発明の現場打ち法枠形成用の検測コイルの実施の形態を図面に基づいて詳細に説明する。
図1および図2は、この発明の検測コイルおよびこれを用いる法枠工法の一実施形態を示すものである。まず、図1において、Kは検測コイルで、この検測コイルKは、所定の高さH(例えば15cm)と幅W(例えば30cm)とを有する円弧状の上凸形状をなすジグザグ状の連続パターンに形成され、引き伸した施工状態ではその長さLは30〜40cm程度である。
DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of a measurement coil for forming a spot casting frame according to the present invention will be described below in detail with reference to the drawings.
FIG. 1 and FIG. 2 show an embodiment of the inspection coil of the present invention and a frame method using the same. First, in FIG. 1, K is an inspection coil, and this inspection coil K has a zigzag shape having an arcuate convex shape having a predetermined height H (for example, 15 cm) and width W (for example, 30 cm). In a stretched construction state formed in a continuous pattern, the length L is about 30 to 40 cm.
その検測コイルKは、例えば防錆加工を施した適宜太さ(例えば直径4mm)の針金よりなり、充分な保形剛性を有して伸縮自在であり、収縮するときには、コンパクトに折りたたんだ状態で広いスペースを要することなく保管が可能であり、また、折りたたんだ状態で持ち運びや搬送がきわめて容易である。そして、現地での施工に際しては、適当な長さに引き伸して各種の法枠寸法に柔軟に対応することができ、かつその保形剛性により、形崩れのない形状精度の高い法枠を形成することができる。   The inspection coil K is made of, for example, a wire having an appropriate thickness (for example, 4 mm in diameter) subjected to rust prevention, has sufficient shape retention rigidity, and can be expanded and contracted. When contracted, the inspection coil K is compactly folded. And can be stored without requiring a large space, and is very easy to carry and transport in a folded state. And when constructing at the site, it is possible to flexibly adapt to various frame dimensions by extending it to an appropriate length, and because of its shape retention rigidity, it is possible to create a frame with high shape accuracy without deformation. Can be formed.
このような検測コイルKを用いておこなう現場打ち法枠工法の一例について説明する。予め整地された法面5に目合いが例えば5〜6cm程度の菱形金網などの網状体6を敷設し、アンカーを適宜の間隔で法面5に打ち込み網状体6を法面5に固定する(図2参照)。   An example of the on-site casting method using the inspection coil K will be described. A mesh 6 such as a diamond wire mesh having a mesh of about 5 to 6 cm, for example, is laid on the slope 5 prepared in advance, and anchors are driven into the slope 5 at an appropriate interval to fix the mesh 6 to the slope 5 ( (See FIG. 2).
前記網状体6の上に、一辺が1〜2m程度の格子状法枠Fの各辺の中心をなす位置に、直径6〜15mm長さ数m程度の鉄筋8を配置する。次いで、その鉄筋8の上に検測コイルKを30〜40cm程度に引き伸して被せるように配置する。なお、鉄筋8同士が交又する箇所は結束線10で結束する。   A rebar 8 having a diameter of about 6 to 15 mm and a length of about several meters is disposed on the mesh body 6 at a position where each side forms the center of each side of the grid-like frame F having a length of about 1 to 2 m. Next, the inspection coil K is placed on the reinforcing bar 8 so as to be stretched to about 30 to 40 cm. In addition, the location where the reinforcing bars 8 cross each other is bound by the binding wire 10.
その検測コイルKは、上凸形状の上辺部1Aの両側に下開き状に張り出した脚部1Bの下端が折り返され、両脚部1B間に底辺部1Cが設けられており、その底辺部1Cの中央に下方開放の凹状部hを形成し、その凹状部h内に鉄筋8を挿入して結束線で固縛固定するようにしたものである。このような現地での検測コイルKの配置作業は熟練を要することなく、きわめて容易におこなうことができる。また、その底辺部1Cによって検測コイルKの沈下を防ぐことができる。   The inspection coil K has a lower end of a leg 1B projecting downwardly on both sides of an upper side 1A of an upwardly convex shape, and a bottom 1C is provided between both legs 1B. A concave portion h that is open downward is formed at the center of the steel plate, and a reinforcing bar 8 is inserted into the concave portion h and fixed with a binding wire. Such an arrangement work of the inspection coil K in the field can be performed very easily without requiring skill. Further, the bottom portion 1C can prevent the detection coil K from sinking.
検測コイルKは、吹付材であるモルタル等11の吹き付け幅および吹き付け高さの目安となるものであるから、格子状法枠Fの各辺に少なくとも一つ設けてあればよく、この実施形態のように、辺の長さが1〜2mの場合、各辺に一つの検測コイルKを設けるのみでよい。また、格子状法枠Fの辺の長さがより大になったときには、検測コイルKを2つ以上設けてもよく、検測コイルKを適当な長さに引き延してもよい。あるいは、検測コイルKを辺全長に亘って設けてもよい。   Since the inspection coil K is a measure of the spray width and spray height of the mortar 11 that is the spray material, it is sufficient that at least one is provided on each side of the lattice method frame F. Thus, when the length of the side is 1 to 2 m, it is only necessary to provide one inspection coil K for each side. When the length of the side of the lattice method frame F becomes larger, two or more inspection coils K may be provided, or the inspection coils K may be extended to an appropriate length. Alternatively, the inspection coil K may be provided over the entire side.
以上のように構成した格子状鉄筋8に、例えば含水率が7〜8%程度の低スランプのモルタルなど11をモルタルガン機などの土木用吹付機(図示してない)によって吹き付ける。この場合、鉄筋8によって形成される格子枠の各辺には、モルタルなど11の吹き付け幅および吹き付け高さの目安となる検測コイルKを設けてあるので、この検測コイルKにしたがってモルタルなど11の吹き付けを行うだけで、所定寸法のモルタルなどよりなる格子状法枠(以下、単に格子状法枠という)Fを容易に形成することができる。すなわち、この実施例においては、下端幅30〜35cm、高さ10〜15cm程度の格子状法枠Fを形成することができ、所定寸法および所定強度の格子状法枠Fを確実に形成できるのである。   For example, a low slump mortar having a moisture content of about 7 to 8% is sprayed on the grid-like reinforcing bar 8 configured as described above by a civil engineering sprayer (not shown) such as a mortar gun machine. In this case, since each side of the lattice frame formed by the reinforcing bars 8 is provided with a measuring coil K serving as a guide for the spray width and spray height of the mortar 11 or the like, the mortar or the like is provided according to the test coil K. A grid-like frame (hereinafter simply referred to as a grid-like frame) F made of mortar having a predetermined size can be easily formed simply by spraying 11. That is, in this embodiment, the lattice-like method frame F having a lower end width of 30 to 35 cm and a height of about 10 to 15 cm can be formed, and the lattice-like method frame F having a predetermined size and a predetermined strength can be reliably formed. is there.
以上のようにして法面5に形成された格子状法枠Fに、土壌、有機質材、保水材(土壌改良材)などと芝草、野草、花、低木類などの種子とを混合してなる植生材料を動力吹付け機などを用いて吹き付けて植生層14(図2参照)を形成したり、また、これに代えて、前記植生材料を粗目の袋体に充填した植生袋(図示していない)を配置するなどして、従来不可能とされていた岩盤法面などにも植生を導入することが可能となり、法面5の景観の向上および植生の根や茎などによる法面5の恒久的安定に寄与するところが大きい。   The lattice-like frame F formed on the slope 5 as described above is a mixture of soil, organic material, water retention material (soil improvement material), etc., and seeds such as turfgrass, wild grass, flowers, shrubs and the like. A vegetation layer 14 (see FIG. 2) is formed by spraying the vegetation material using a power sprayer or the like, or instead, a vegetation bag (not shown) filled with a coarse bag body with the vegetation material is shown. It is possible to introduce vegetation to rock slopes that were previously impossible, and improve the landscape of slope 5, and the slope of vegetation by roots and stems. There is a significant contribution to permanent stability.
この発明は、上述の実施形態に限られることなく、種々に変形して実施することができる。以下に、その他の実施形態について説明する。   The present invention is not limited to the above-described embodiment, and can be implemented with various modifications. Other embodiments will be described below.
図3は、底辺部1Cに形成する下方開放の凹状部hを幅広く形成して幅方向に2本の鉄筋8を固縛できるようにしたものであり、格子状法枠Fの幅が比較的に広い場合に適用できる。   FIG. 3 shows a wide open recessed portion h formed on the bottom portion 1C so that two reinforcing bars 8 can be secured in the width direction. The width of the grid-like frame F is relatively small. Applicable to wide cases.
図4は、底辺部1Cに形成する下方開放の凹状部hを縦長に形成して上下に2本の鉄筋8を固縛できるようにしたものであり、格子状法枠Fの高さが比較的に高い場合に適用できる。   FIG. 4 shows a vertically open concave portion h formed on the base 1C so that the two reinforcing bars 8 can be secured vertically, and the height of the grid-like frame F is compared. It can be applied when it is expensive.
図5は、底辺部1Cの凹状部h1 に加えて、上辺部1Cにも上方開放の凹状部h2 を形成し、検測コイルKの上部と下部に鉄筋8、8を挿通させ結束線で固縛固定するようにしたものであり、より一層形崩れしにくい形状精度の高い格子状法枠Fの形成が可能となる In FIG. 5, in addition to the concave portion h 1 of the bottom side 1C, a concave portion h 2 that is open upward is also formed on the upper side 1C, and the reinforcing bars 8 and 8 are inserted through the upper and lower portions of the measuring coil K to form a binding line. Thus, it is possible to form a lattice method frame F with high shape accuracy that is more difficult to collapse .
以上説明したように、本発明によれば、検測コイル上凸形状の保形剛性を有する連続パターンに形成され折りたたみ自在であるので、折りたたんでコンパクトにすることができ、取扱い、搬送が容易で、現地に搬入して法面上で引き伸して法面上に配置すればよく、きわめて容易に敷設することができ、かつその保形剛性により形状精度の高い法枠を形成することができる。 As described above, according to the present invention, the inspection coil is formed in a continuous pattern having an upward convex shape-retaining shape and is foldable, so that it can be folded and compact, and can be handled and transported. It is easy to bring into the field, stretch it on the slope, and place it on the slope. It can be laid very easily, and its shape retention rigidity forms a frame with high shape accuracy. Can do.
また、その検測コイルの辺部に下方開放の凹状部を形成してあるので、長尺な鉄筋を検測コイルの方からその凹状部に容易に挿入して結束線によって固縛できる。 Further, since is formed a concave portion of the lower opening in the bottom side portion of the gage coils may lashed by binding wire to easily insert the elongated reinforcing bar from under side of the gage coils to the recess .
さらに、前記凹状部は底辺部だけでなく上辺部にも形成して、検測コイルの上部と下部と鉄筋を挿通させることもでき、法枠の設計条件や法面の状態等に応じて柔軟に対応することができる。 Further, the concave portion is also formed on the upper portion as well bottom side, it can also be inserted through the top and bottom and rebar gage coils, flexible in accordance with the state of the design conditions and cuttings legal frame It can correspond to.
本発明の現場打ち法枠形成用の検測コイルの一実施形態を示す斜視図である。It is a perspective view which shows one Embodiment of the measurement coil for the field casting method frame formation of this invention. 同法面上に施工された法枠の部分破断斜視図である。It is a partial fracture perspective view of a method frame constructed on the same slope. 同検測コイルの異なる実施形態を示す斜視図である。It is a perspective view which shows different embodiment of the inspection coil. 同検測コイルの別の実施形態を示す斜視図である。It is a perspective view which shows another embodiment of the inspection coil. 同検測コイルのさらに異なる実施形態を示す斜視図である。It is a perspective view which shows further another embodiment of the inspection coil.
符号の説明Explanation of symbols
1A 上辺部
1B 脚部
1C 底辺部
5 法面
6 網状体
8 鉄筋
K 検測コイル
h 凹状部
F 格子状法枠
DESCRIPTION OF SYMBOLS 1A Upper side part 1B Leg part 1C Bottom side part 5 Slope 6 Net-like body 8 Reinforcement K Inspection coil h Concave part F Grid-like method frame

Claims (1)

  1. 法面に網状体を敷設した後、この網状体上に鉄筋を格子状に配置し、その鉄筋の上に被せるように配置した検測コイルに前記鉄筋を固定し、その格子状鉄筋にモルタルまたはコンクリートを吹き付けて格子状法枠を形成するために使用される、格子状法枠の形状寸法を規制するための現場打ち法枠形成用の検測コイルであって手方向に適宜な間隔をおいた上凸形状の保形剛性を有する連続パターンに形成されて折りたたみ自在であるとともに、上凸形状の上辺部と、底辺部とを有し、前記底辺部には、網状体上の前記鉄筋を挿入固定するための下方開放の凹状部が形成されていることを特徴とする現場打ち法枠形成用の検測コイル。 After laying the mesh body in slopes, mortar rebar onto the mesh body is arranged in a grid pattern, on the said reinforcement is fixed to the gage coil disposed so as to cover the top of the rebar, As a lattice-shaped reinforcing bar or spraying concrete used to form a grid-like method frame, a gage coils of cast-in-place method frame for formation for regulating the geometry of the lattice-like process frame, a suitably long side direction together formed a foldable continuous pattern with a shape retention rigidity of upward convex shape spaced, includes a upper side of the upper convex shape and a bottom portion, the front Symbol bottom sides, the mesh-like body An inspection coil for forming an on-site casting frame , wherein a concave portion having a downward opening for inserting and fixing the reinforcing bar is formed.
JP2004372002A 2004-12-22 2004-12-22 Inspection coil for on-site casting frame formation Expired - Fee Related JP3863894B2 (en)

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Application Number Priority Date Filing Date Title
JP2004372002A JP3863894B2 (en) 2004-12-22 2004-12-22 Inspection coil for on-site casting frame formation

Related Parent Applications (1)

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JP32983295A Division JPH09144008A (en) 1995-11-24 1995-11-24 Measuring coil for forming cast-in-place sloped form

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JP2005098106A JP2005098106A (en) 2005-04-14
JP3863894B2 true JP3863894B2 (en) 2006-12-27

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5506114B2 (en) * 2012-05-25 2014-05-28 日本植生株式会社 Inspection frame, slope protection method and structure using the same
JP5685329B2 (en) * 2014-01-27 2015-03-18 日本植生株式会社 Inspection frame, slope protection method and structure using the same

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