JPH07317072A - Method of cast-in-place sloped form construction - Google Patents

Abstract

PURPOSE:To form latticed sloped forms having size and strength in accordance with specifications and consisting of mortar, etc., under the state, in which reinforcing bars are arranged positively at places determined in specifications, simply without requiring skill in a method of cast-in-place sloped form construction using no form. CONSTITUTION:Netlike bodies 7 are laid on the face of a slope 6, and reinforcing bars 9 are disposed onto the netlike bodies 7. Inspecting measuring frames K being composed of arched members 1 having specified height and width and connecting members 2 connecting the mutual arched members 1 while having engaging pawls 3 at the specified height places of the arched members 1 are arranged at proper intervals so that the arched members 1 cross the reinforcing bars 9 disposed onto the top faces of the netlike bodies 7 laid on the face of the slope 6. Mortar or concrete 12 is sprayed under the state, in which parts of the netlike bodies 7 are caught to the engaging pawls 3 and the netlike bodies 7 are floated and held.

Description

【発明の詳細な説明】Detailed Description of the Invention

【０００１】[0001]

【産業上の利用分野】この発明は、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
法枠工法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cast-in-place method frame construction method used for, for example, greening a slope such as a road or a constructed land.

【０００２】[0002]

【従来の技術】前記現場打ち法枠工法として、例えば特
公昭５８−２０３３８号公報に示される「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配置し、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ので、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、使用する器材が少なく安価であ
るといった利点がある。2. Description of the Related Art As the above-mentioned in-situ casting method frame construction method, for example, there is a "slope stabilization construction 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, arrange the reinforcing bars on the mesh body in a grid pattern and spray mortar or concrete (hereinafter referred to as mortar etc.) on the grid reinforcing bar Since it is designed to form a grid-shaped method frame made of, etc., it is superior in workability and strength compared to the conventional prefabricated type and in-situ method frame construction method, and it uses less equipment and is cheaper. There is an advantage.

【０００３】[0003]

【発明が解決しようとする課題】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
れを被り厚と言う）が鉄筋のどの面からも５ｃｍ以上で
あることが、所要強度の格子状法枠を得るための品質管
理基準として義務付けられている。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、所定寸法のモルタル等よりなる格子状法枠を
形成するのに相当の熟練度を要するとともに、前記格子
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, according to the current civil engineering standards, it is required that the thickness of the mortar or the like covering the grid-like reinforcing bars (which is called the covering thickness) is 5 cm or more from any surface of the reinforcing bars. Mandatory as a quality control standard for obtaining a strong grid-like framework. However, the cast-in-place method frame method is a cast-in-place method frame method that does not use a formwork, and since spraying mortar and the like is performed as site work in an unstable place on the slope, grid-shaped reinforcing bars are used. The thickness and width of the mortar etc. sprayed on the mortar are likely to be non-uniform, and a considerable degree of skill is required to form a lattice-shaped method frame made of mortar or the like of a predetermined size, and the dimension and strength of the lattice-shaped method frame vary. Could not be avoided.

【０００４】また、上記現場打ち法枠工法においては、
鉄筋を網状体からやや浮かせた状態で設置し、これを中
心にしてモルタル等を吹き付けるが、このモルタル等の
吹き付けた後、鉄筋の周囲を所定の被り厚のモルタル等
の層が形成されているかを確認できないため、規格を満
たさない格子状法枠が稀に形成されることがあった。Further, in the above-mentioned in-situ casting method frame construction method,
The rebar is installed in a state of being slightly floated from the reticulate body, and mortar etc. is sprayed around this, but after the mortar etc. is sprayed, is a layer of mortar etc. with a predetermined covering thickness formed around the rebar? Since it could not be confirmed, a grid-like method frame that did not meet the standard was occasionally formed.

【０００５】この発明は、上述の事柄に留意してなされ
たもので、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し、かつ、鉄筋を規格に
定められた位置に確実に配設した状態の格子状法枠を熟
練を要することなく簡単に形成することができる現場打
ち法枠工法を提供することを目的としている。The present invention has been made in consideration of the above-mentioned matters, and in a cast-in-place frame construction method using no formwork,
In-situ casting method method that can easily form a grid-shaped method frame that has dimensions and strengths according to the standard and that securely arranges the reinforcing bars at the positions specified in the standard without requiring skill. Is intended to provide.

【０００６】[0006]

【課題を解決するための手段】上記目的を達成するた
め、この発明は、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、こ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モルタルまたはコン
クリートよりなる格子状法枠を形成する現場打ち法枠工
法において、所定の高さと幅を有する弓状部材とこの弓
状部材どうしを連結する連結部材とからなるとともに、
弓状部材の所定の高さ位置に係止爪を有する検測枠を、
弓状部材が前記鉄筋を跨ぐようにして適宜の間隔をおい
て配置し、前記係止爪に網状体の一部を引っ掛けて網状
体を浮設保持した状態で、モルタルまたはコンクリート
を吹き付けることを特徴としている。In order to achieve the above object, the present invention is to lay a reticulated body on a slope, arrange rebars on the reticulated body in a grid pattern, and apply mortar or rebar to the grid rebar. In the cast-in-place method frame method of spraying concrete to form a grid-like method frame made of mortar or concrete, and consisting of an arcuate member having a predetermined height and width and a connecting member that connects the arcuate members together,
A measuring frame having a locking claw at a predetermined height position of the bow-shaped member,
Arranged at an appropriate interval so that the arcuate member straddles the rebar, and while holding the mesh body in a floating state by hooking a part of the mesh body on the locking claw, spraying mortar or concrete. It has a feature.

【０００７】この場合、弓状部材の両下端部を折曲して
沈み防止部を形成してあってもよく、また、検測枠を構
成する部材が防錆加工を施した針金から構成してあって
もよい。In this case, the lower end portions of the arcuate member may be bent to form the sunken portion, and the member constituting the inspection frame is made of a wire which is rust-proofed. You can

【０００８】[0008]

【作用】この発明で用いる検測枠Ｋは、例えば図４に示
すように、所定の高さＨ（例えば１０ｃｍ）と幅Ｗ（例
えば３０ｃｍ）とを有する二つの弓状部材１とこれら二
つの弓状部材１を連結する二つの連結部材２とからなる
とともに、弓状部材１の所定の高さ位置に係止爪３を有
している。この係止爪３は、例えば連結部材２の両端部
を水平方向にほぼ直角に折り曲げることにより形成され
る。この検測枠Ｋを構成する弓状部材１および先端に係
止爪３を有する連結部材２は、防錆加工を施した適宜太
さの針金よりなり、連結部材２は、弓状部材１に対して
その所定の高さ位置（この場合、５ｃｍ）に溶接または
ハンダ付けによって固着されている。The inspection frame K used in the present invention is, for example, as shown in FIG. 4, two arcuate members 1 having a predetermined height H (for example, 10 cm) and a width W (for example, 30 cm), and these two arcuate members 1. It is composed of two connecting members 2 for connecting the arcuate member 1, and has a locking claw 3 at a predetermined height position of the arcuate member 1. The locking claw 3 is formed, for example, by bending both ends of the connecting member 2 in a horizontal direction at a substantially right angle. The bow-shaped member 1 and the connecting member 2 having the locking claw 3 at the tip of the inspection frame K are made of rust-proof wire of appropriate thickness, and the connecting member 2 is attached to the bow-shaped member 1. On the other hand, it is fixed to the predetermined height position (5 cm in this case) by welding or soldering.

【０００９】そして、法面６に所定のモルタル等よりな
る格子状法枠１３を形成するに際しては、法面６を整形
した後、図１に示すように、法面６全体に菱形金網など
の網状体７を敷設し、この網状体７上に鉄筋９を格子状
に配置する。そして、図２に示すように、検測枠Ｋを、
弓状部材１が鉄筋９を跨ぐようにして適宜の間隔をおい
て配置する。この場合、検測枠Ｋの弓状部材１に沈み防
止部４を形成してあるので、特に、法面６が盛土などで
形成されている場合において、検測枠Ｋの沈みが効果的
に防止される。When forming the lattice-shaped method frame 13 made of a predetermined mortar or the like on the slope 6, the slope 6 is shaped, and then, as shown in FIG. The reticulated body 7 is laid, and the reinforcing bars 9 are arranged on the reticulated body 7 in a grid pattern. Then, as shown in FIG.
The arcuate members 1 are arranged at appropriate intervals so as to straddle the reinforcing bars 9. In this case, since the sinking prevention portion 4 is formed on the bow-shaped member 1 of the inspection frame K, the sinking of the inspection frame K is effective especially when the slope 6 is formed by embankment. To be prevented.

【００１０】その後、鉄筋９を敷設した網状体７の一部
を上方に持ち上げて、検測枠Ｋの係止爪３に引っ掛けて
網状体７を浮設保持する。この網状体７の浮設保持によ
って、鉄筋９が所定の高さ位置に保持される。この状態
で、図１および図３に示すように、鉄筋９にモルタル等
１２を吹き付けるのである。After that, a part of the net-like body 7 on which the reinforcing bars 9 are laid is lifted up and hooked on the locking claws 3 of the inspection frame K to hold the net-like body 7 in a floating manner. By holding the net body 7 in a floating state, the reinforcing bar 9 is held at a predetermined height position. In this state, as shown in FIGS. 1 and 3, the mortar 12 or the like is sprayed on the reinforcing bar 9.

【００１１】このようにすることにより、鉄筋９が所定
の高さ位置に保持された状態で、その周囲に所定厚みの
モルタル等１２を吹き付けることができ、しかも、検測
枠Ｋが法面６から沈み込むことがないので、所定寸法お
よび強度を有するモルタル等よりなる格子状法枠１３を
法面６に確実に形成することができる。By doing so, the mortar 12 having a predetermined thickness can be sprayed around the reinforcing bar 9 held at a predetermined height position, and the inspection frame K can have the slope 6 Since it does not sink from the bottom, the lattice-shaped method frame 13 made of mortar or the like having a predetermined size and strength can be reliably formed on the slope 6.

【００１２】[0012]

【実施例】図１〜図４は、この発明の現場打ち法枠工法
の一例を示すものである。まず、この発明において用い
る検測枠Ｋについて、図４を参照しながら説明する。図
４に示すように、検測枠Ｋは、所定の高さＨ（例えば１
０ｃｍ）と幅Ｗ（例えば３０ｃｍ）とを有する二つの弓
状部材１とこれら二つの弓状部材１の下方を連結する二
つの連結部材２とからなるとともに、両弓状部材１の適
宜高さの位置に互いに向き合った係止爪３が設けられて
いる。この係止爪３は、例えば連結部材２の両端部を水
平方向にほぼ直角に折り曲げて形成されている。さら
に、各弓状部材１の両下端部を例えば互いに向き合う方
向に折曲して沈み防止部４が形成され、検測枠Ｋは、ほ
ぼ蒲鉾状に形成されている。1 to 4 show an example of the in-situ casting method frame construction method of the present invention. First, the inspection frame K used in the present invention will be described with reference to FIG. As shown in FIG. 4, the inspection frame K has a predetermined height H (for example, 1
0 cm) and a width W (for example, 30 cm), and two arcuate members 1 and two connecting members 2 that connect the lower parts of these arcuate members 1 with appropriate heights of the arcuate members 1. The locking claws 3 facing each other are provided at the positions. The locking claws 3 are formed, for example, by bending both ends of the connecting member 2 in the horizontal direction at substantially right angles. Further, both lower end portions of each arcuate member 1 are bent, for example, in a direction facing each other to form a sunken portion 4, and the inspection frame K is formed in a generally semi-cylindrical shape.

【００１３】検測枠Ｋを構成する弓状部材１および係止
爪３を含む連結部材２は、防錆加工を施した適宜太さの
針金よりなり、連結部材２は，弓状部材１に対して溶接
またはハンダ付けによって弓状部材１の高さ方向のほぼ
中間位置に固着されている。すなわち、この実施例にお
いては、係止爪３は検測枠Ｋの高さのほぼ半分の位置に
水平に設けられているが、この高さに限られるものでは
ない。また、各弓状部材１の両下端部を折り曲げて形成
される沈み防止部４の長さは、３〜５ｃｍ程度である。
なお、連結部材２の長さＬは、法面６に形成される格子
枠の一つの辺の長さよりも短く、例えば４０〜５０ｃｍ
程度でよい。The arcuate member 1 and the connecting member 2 including the locking claws 3 which form the inspection frame K are made of a wire having an appropriate thickness and subjected to rust prevention. On the other hand, the arcuate member 1 is fixed by welding or soldering at a substantially intermediate position in the height direction. That is, in this embodiment, the locking claw 3 is horizontally provided at a position approximately half the height of the inspection frame K, but the height is not limited to this. The length of the sunken portion 4 formed by bending both lower end portions of each bow-shaped member 1 is about 3 to 5 cm.
The length L of the connecting member 2 is shorter than the length of one side of the lattice frame formed on the slope 6, for example, 40 to 50 cm.
The degree is enough.

【００１４】次に、上記検測枠Ｋを用いて行う現場打ち
法枠工法の一例について、図１〜図３をも参照しながら
説明する。予め整形された法面６に目合いが例えば５〜
６ｃｍ程度の菱形金網などの網状体７を敷設し、アンカ
ー８を適宜の間隔で法面６に打ち込んで網状体７を法面
６に固定する（図２参照）。Next, an example of the in-situ casting frame construction method using the inspection frame K will be described with reference to FIGS. For example, the slope of the pre-shaped slope 6 is 5 to 5
A mesh body 7 such as a diamond wire mesh of about 6 cm is laid, and anchors 8 are driven into the slope 6 at appropriate intervals to fix the mesh 7 to the slope 6 (see FIG. 2).

【００１５】前記網状体７の上に例えば直径が６〜１０
ｍｍ程度の鉄筋９を一辺が１〜２ｍ程度の格子状に組み
合わせて配置する（図１参照）。鉄筋９の交点には例え
ば直径１６ｍｍ、長さ４０〜５０ｃｍ程度のアンカー１
０を法面６から１０ｃｍ程度突出させた状態で打ち込
み、鉄筋９を適宜の結束線１１を用いてアンカー１０の
突出部に結束する（図２および図３参照）。なお、前記
交点と交点との間にも、例えば直径９ｍｍ、長さ３０ｃ
ｍ程度のアンカー（図示してない）を法面６に打ち込
み、交点におけると同様に鉄筋を７をアンカーに結束す
るのがよい。For example, a diameter of 6 to 10 is provided on the mesh 7.
Reinforcing bars 9 having a size of about mm are combined and arranged in a lattice shape having one side of about 1 to 2 m (see FIG. 1). An anchor 1 having a diameter of 16 mm and a length of 40 to 50 cm is provided at the intersection of the reinforcing bars 9.
0 is driven in a state of protruding from the slope 6 by about 10 cm, and the reinforcing bar 9 is bound to the protruding portion of the anchor 10 by using an appropriate binding wire 11 (see FIGS. 2 and 3). Note that, for example, the diameter is 9 mm and the length is 30 c between the intersections.
An anchor (not shown) of about m is preferably driven into the slope 6 and the reinforcing bars 7 are bound to the anchor in the same manner as at the intersection.

【００１６】そして、鉄筋９からなる格子枠の各辺のほ
ぼ中央に前記検測枠Ｋを、その弓状部材１が鉄筋９を跨
ぐようにして網状体７上に配置する（図１および図２参
照）。この場合、検測枠Ｋの弓状部材１に沈み防止部４
を形成してあるので、特に、法面６が盛土などで形成さ
れている場合において、検測枠Ｋの沈みが効果的に防止
される。そして、この検測枠Ｋは、モルタル等の吹き付
け幅および吹き付け高さの目安になるとともに、前記網
状体７を浮設保持するためのスペーサとなるものである
から、鉄筋９によって形成される格子枠の一辺に少なく
とも一つ設けてあればよく、この実施例のように、辺の
長さが１〜２ｍ、検測枠Ｋの長さＬが４０〜５０ｃｍの
ときは、各辺に一つの検測枠Ｋを設けるだけでよい。ま
た、前記辺の長さがより大きくなったときは、前記寸法
の検測枠Ｋを２以上設けてもよいが、検測枠Ｋの長さＬ
をより大きく（例えば１．３〜１．５ｍ程度）設定して
もよい。さらに、検測枠Ｋを辺全長に亘って設けてもよ
い。Then, the inspection frame K is arranged on the mesh body 7 so that the arcuate member 1 straddles the reinforcing bar 9 at approximately the center of each side of the lattice frame composed of the reinforcing bar 9 (FIGS. 1 and 2). 2). In this case, the bowing member 1 of the inspection frame K is attached to the sunken portion 4
In particular, when the slope 6 is formed by embankment or the like, sinking of the inspection frame K is effectively prevented. The inspection frame K serves as a guide for the spraying width and spraying height of mortar and the like, and serves as a spacer for suspending and holding the reticulated body 7. Therefore, the grid formed by the reinforcing bars 9 is used. It suffices that at least one is provided on one side of the frame, and when the length of the side is 1 to 2 m and the length L of the inspection frame K is 40 to 50 cm as in this embodiment, one is provided on each side. It is only necessary to provide the inspection frame K. Further, when the length of the side becomes larger, two or more inspection frames K having the above dimensions may be provided.
May be set larger (for example, about 1.3 to 1.5 m). Furthermore, the inspection frame K may be provided over the entire length of the side.

【００１７】上述のように検測枠Ｋを網状体７上に配置
した後、その後、鉄筋９を敷設した網状体７の一部を上
方に持ち上げて、検測枠Ｋの係止爪３に引っ掛けて網状
体７を浮設保持する。この網状体７の浮設保持によっ
て、鉄筋９が所定の高さ位置（この場合、弓状部材１の
高さの約半分の位置）に保持される。After arranging the inspection frame K on the mesh 7 as described above, a part of the mesh 7 on which the reinforcing bars 9 have been laid is then lifted up to engage the locking claws 3 of the inspection frame K. The mesh 7 is hooked and held in a floating manner. By the floating holding of the net-like body 7, the reinforcing bar 9 is held at a predetermined height position (in this case, a position which is about half the height of the arcuate member 1).

【００１８】以上のように構成された格子状の鉄筋９
に、例えば含水率が７〜８％程度の低スランプのモルタ
ル等１３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、格子枠を構成
する鉄筋９には、モルタル等１２の吹き付け幅および吹
き付け高さの目安となる検測枠Ｋが設けてあるので、こ
の検測枠Ｋにしたがってモルタル等１２の吹き付けを行
うだけで、所定寸法のモルタル等よりなる格子状法枠１
３を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
度のモルタル等よりなる格子状法枠１３を容易に形成す
ることができ、所定寸法および所定強度のモルタル等よ
りなる格子状法枠１３を確実に形成できるのである。な
お、図１および図３において、符号１４はモルタル等１
２を吹き付けるためのノズルである。Lattice-shaped reinforcing bar 9 constructed as described above
Then, for example, a low slump mortar or the like 13 having a water content of about 7 to 8% is sprayed by a civil engineering sprayer (not shown) such as a mortar gun machine. In this case, the reinforcing bars 9 forming the lattice frame are provided with the inspection frame K that serves as a guide for the spraying width and the spraying height of the mortar 12 and so on. A grid-like method frame 1 made of mortar or the like with a predetermined size
3 can be formed. That is, in this embodiment, the lattice-shaped method frame 13 made of mortar or the like having a lower end width of 30 to 35 cm and a height of 10 to 15 cm can be easily formed, and the lattice made of mortar or the like having a predetermined size and a predetermined strength. Therefore, the frame 13 can be reliably formed. 1 and 3, reference numeral 14 is mortar or the like 1
It is a nozzle for spraying 2.

【００１９】また、格子枠を構成する鉄筋９は、網状体
７が検測枠Ｋの係止爪３によって浮設保持されることに
より、網状体７とともに法面６から所定高さだけ浮いた
状態に保持され、その周囲が所定厚み所定幅のモルタル
等１２によって囲まれた状態になる。したがって、鉄筋
９の周囲を規格通りにモルタル等１２によって囲んだモ
ルタル等よりなる格子状法枠１３を容易にしかも確実に
形成することができる。Further, the reinforcing bars 9 constituting the lattice frame are floated and held by the locking claws 3 of the inspection frame K so that the reinforcing bars 9 are floated together with the mesh 7 by a predetermined height from the slope 6. It is kept in a state, and its periphery is surrounded by mortar 12 having a predetermined thickness and a predetermined width. Therefore, the lattice-shaped method frame 13 made of mortar or the like, which is surrounded by the mortar 12 or the like around the reinforcing bar 9 according to the standard, can be easily and reliably formed.

【００２０】以上のようにして法面６に形成されたモル
タル等よりなる格子状法枠１３内に、土壌、有機質材、
保水材（土壌改良材）などと芝草、野草、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１５（図１参照）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、法面の景観の向上および植生の根や茎
などによる法面の恒久的安定に寄与するところが大き
い。In the lattice-shaped method frame 13 made of mortar or the like formed on the slope 6 as described above, soil, organic material,
To form a vegetation layer 15 (see FIG. 1) by spraying a vegetation material obtained by mixing a water retaining material (soil improving material) and seeds such as turf grass, wild grass, shrubs with a power spraying machine,
Instead of this, a vegetation bag (not shown) in which a coarse bag body is filled with the vegetation material is arranged to introduce vegetation into a rock slope, which has been conventionally impossible. It becomes possible to contribute to the improvement of the slope landscape and the permanent stabilization of the slope due to the roots and stems of vegetation.

【００２１】この発明は、上述の実施例に限られるもの
ではなく、例えば検測枠Ｋをプラスチックによって一体
成形によって形成してもよい。そして、弓状部材１は３
以上設けてあってもよい。また、係止爪３を連結部材２
とは独立して弓状部材１に設けるようにしてもよい。さ
らに、この係止爪３の高さ位置は、鉄筋９の周囲に所定
の被り厚が形成されるようにしてあれば任意である。そ
してさらに、鉄筋の周囲に所定の被り厚がさらに、一つ
の辺に設けられる鉄筋９は必ずしも１本でなくても複数
本でもよく、その場合、鉄筋の交点付近に４本の長目の
アンカーを法面６に打ち込み、鉄筋を井桁状に支承結束
し、これを一段あるいは数段重ねるようにしてもよい。The present invention is not limited to the above-mentioned embodiment, but the inspection frame K may be formed of plastic by integral molding. And the arcuate member 1 is 3
The above may be provided. In addition, the locking claw 3 is connected to the connecting member 2
Alternatively, the arcuate member 1 may be provided independently of the. Further, the height position of the locking claw 3 is arbitrary as long as a predetermined covering thickness is formed around the reinforcing bar 9. Further, a predetermined covering thickness around the reinforcing bar is further provided, and the reinforcing bar 9 provided on one side is not necessarily one but may be a plurality of reinforcing bars. In that case, four long anchors are provided near the intersection of the reinforcing bars. Alternatively, the reinforcing bars may be struck in the slope 6 to support and bind the reinforcing bars in the shape of a cross girder, and the reinforcing bars may be stacked one step or several steps.

【００２２】[0022]

【発明の効果】以上説明したように、この発明において
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、こ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モルタルまたはコンクリートより
なる格子状法枠を形成する現場打ち法枠工法において、
所定の高さと幅を有する弓状部材とこの弓状部材どうし
を連結する連結部材とからなるとともに、弓状部材の所
定の高さ位置に係止爪を有する検測枠を、弓状部材が前
記鉄筋を跨ぐようにして適宜の間隔をおいて配置し、前
記係止爪に網状体の一部を引っ掛けて網状体を浮設保持
した状態で、モルタルまたはコンクリートを吹き付ける
ようにしているので、モルタル等の吹き付けムラがなく
なり、鉄筋のまわりに所定の被り厚を有する規格通りの
寸法および強度を有するモルタル等よりなる格子状法枠
を容易に法面に形成することができる。As described above, in the present invention, after the reticulated body is laid on the slope, the reinforcing bars are arranged in a grid on the reticulated body, and the mortar or concrete is sprayed on the reticulated bar. In the cast-in-place method frame method to form the lattice method frame made of mortar or concrete,
The bow-shaped member comprises a bow-shaped member having a predetermined height and width and a connecting member that connects the bow-shaped members to each other, and the bow-shaped member has a detection frame having a locking claw at a predetermined height position of the bow-shaped member. Arranged at appropriate intervals so as to straddle the rebar, in a state in which the net is floated and held by hooking a part of the net to the locking claws, so that mortar or concrete is sprayed. It is possible to eliminate uneven spraying of mortar and the like, and it is possible to easily form a grid-like method frame made of mortar and the like having a predetermined size and strength around the reinforcing bar on the slope.

【００２３】また、前記検測枠に沈み防止部を形成した
場合には、法面が盛土で形成されているような場合であ
っても、検測枠の沈みを防止でき、前記モルタル等より
なる格子状法枠を所定寸法に確実に形成できる。In addition, when the inspection frame is provided with a sunken portion, the sunken frame can be prevented from sinking even when the slope is formed by embankment. The grid-shaped method frame can be reliably formed to have a predetermined size.

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

【図１】この発明の現場打ち法枠工法の一例を示す図で
ある。FIG. 1 is a diagram showing an example of a cast-in-place method frame construction method of the present invention.

【図２】前記工法の要部を示す図である。FIG. 2 is a diagram showing a main part of the construction method.

【図３】前記工法の要部を示す正面図である。FIG. 3 is a front view showing a main part of the construction method.

【図４】前記工法で用いる検測枠の一例を示す斜視図で
ある。FIG. 4 is a perspective view showing an example of an inspection frame used in the construction method.

【符号の説明】[Explanation of symbols]

１…弓状部材、２…連結部材、３…係止爪、４…沈み防
止部、６…法面、７…網状体、９…鉄筋、１２…モルタ
ルまたはコンクリート、１３…格子状法枠、Ｋ…検測
枠。DESCRIPTION OF SYMBOLS 1 ... Bow-shaped member, 2 ... Connection member, 3 ... Locking claw, 4 ... Sinking prevention part, 6 ... Slope, 7 ... Net, 9 ... Rebar, 12 ... Mortar or concrete, 13 ... Lattice-like frame, K: Inspection frame.

Claims (3)

【特許請求の範囲】[Claims] 【請求項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、こ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モルタルまたはコンク
リートよりなる格子状法枠を形成する現場打ち法枠工法
において、所定の高さと幅を有する弓状部材とこの弓状
部材どうしを連結する連結部材とからなるとともに、弓
状部材の所定の高さ位置に係止爪を有する検測枠を、弓
状部材が前記鉄筋を跨ぐようにして適宜の間隔をおいて
配置し、前記係止爪に網状体の一部を引っ掛けて網状体
を浮設保持した状態で、モルタルまたはコンクリートを
吹き付けることを特徴とする現場打ち法枠工法。1. After laying a reticulate body on the slope, arranging reinforcing bars on the reticulated body in a grid pattern, and spraying mortar or concrete on the grid rebar to form a grid-like method frame made of mortar or concrete. In the in-situ casting frame construction method, the inspection having an arcuate member having a predetermined height and width and a connecting member for connecting the arcuate members together, and having a locking claw at a predetermined height position of the arcuate member. The measuring frame is arranged with an appropriate interval so that the arcuate member straddles the rebar, and a part of the mesh body is hooked on the locking claws to hold the mesh body in a floating state, and then the mortar or concrete. On-site casting frame construction method characterized by spraying. 【請求項２】 弓状部材の両下端部を折曲して沈み防止
部を形成してなる請求項１に記載の現場打ち法枠工法。2. The in-situ casting frame construction method according to claim 1, wherein both lower end portions of the arcuate member are bent to form a sink preventing portion. 【請求項３】 検測枠を構成する部材が防錆加工を施し
た針金からなる請求項１または２に記載の現場打ち法枠
工法。3. The cast-in-place frame construction method according to claim 1, wherein the member constituting the inspection frame is made of a wire which is rust-proofed.