JP2694327B2 - Cast-in-place method - Google Patents
Cast-in-place methodInfo
- Publication number
- JP2694327B2 JP2694327B2 JP6138209A JP13820994A JP2694327B2 JP 2694327 B2 JP2694327 B2 JP 2694327B2 JP 6138209 A JP6138209 A JP 6138209A JP 13820994 A JP13820994 A JP 13820994A JP 2694327 B2 JP2694327 B2 JP 2694327B2
- Authority
- JP
- Japan
- Prior art keywords
- mortar
- frame
- grid
- concrete
- reinforcing bars
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
Description
【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 used for 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
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 an example of the cast-in-place method, there is a "slope stabilization method" disclosed in Japanese Patent Publication No. 58-20338. In this method, after laying a mesh such as a wire mesh on the slope, reinforcing bars are arranged in a grid on the mesh, and mortar or concrete (hereinafter, referred to as mortar, etc.) is sprayed on the reinforcing bars to form a mortar. Since it is designed to form a lattice-shaped method frame, it has excellent workability and strength compared to the conventional prefabricated type and cast-in-place method, and uses less equipment and is inexpensive. There are advantages.
【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き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。According to the current civil engineering standards, it is necessary that the thickness of a mortar or the like covering the grid-like reinforcing bar (hereinafter referred to as “covering thickness”) be 5 cm or more from any surface of the reinforcing bar. Mandatory as a quality control standard to obtain a strong grid-like frame. However, the above-mentioned cast-in-place method method is a cast-in-place method method that does not use a formwork, and since spraying mortar etc. is performed as an on-site operation in an unstable place on the slope, it has a grid shape. The thickness and width of the mortar sprayed on the reinforcing bars tend to be non-uniform, which requires considerable skill to form a grid-like frame with a predetermined size, and avoids variations in the size and strength of the grid-like frame. I couldn't.
【０００４】また、上記現場打ち法枠工法においては、
鉄筋をアンカーに保持させるなどして網状体からやや浮
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
囲を所定の厚み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、規格を満たさないモルタル等よりな
る格子状法枠が稀に形成されることがあった。In the above-mentioned cast-in-place method,
It is installed in a state that it is slightly suspended from the mesh body by holding the reinforcing bar on the anchor, etc., and mortar etc. is sprayed around this, but after this mortar etc. is sprayed, the surroundings of the reinforcing bar such as mortar of predetermined thickness Since it is not possible to confirm whether or not the layer is formed, a grid-like method frame made of mortar or the like that does not meet the standard may be rarely 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モルタル等より
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。[0005] The present invention has been made in consideration of the above-mentioned matter, and in a cast-in-place method using no formwork,
A site that can easily form a grid-like method frame made of mortar or the like that has the dimensions and strength as specified and that the reinforcing bars are securely placed at the positions specified in the specifications, without requiring skill. The aim is to provide a hammering method.
【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、この出願における第１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
る弓状部材と弓状部材どうしを連結する連結部材とから
なる検測枠を、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た後、連結部材の間隔よりや
や長い保持部材を、鉄筋と網状体との間を通すようにし
て所定の高さに位置において水平に架設した状態で、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 first invention of this application is to lay a net-like body on a slope, and then arrange reinforcing bars on the net-like body in a grid pattern. In the cast-in-place method method of forming a grid-like method frame made of mortar or concrete by spraying mortar or concrete on the bar-shaped reinforcing bar, the bow-shaped members having a predetermined height and width In the inspection frame, the bow member straddles the rebar ,
After arranging at an appropriate interval, a holding member that is slightly longer than the interval between the connecting members is installed horizontally at a predetermined height so that it passes between the reinforcing bar and the net, and mortar or concrete It is characterized by spraying.
【０００７】そして、この出願における第２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弓状部材どうしを連結す
る連結部材とからなり、弓状部材の一方の脚部と他方の
脚部とを水平に連結する横桟を適宜高さ位置に備えた検
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た後、鉄筋を前記横桟に結束して浮
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。The second invention in this application is
After laying a mesh on the slope, arrange reinforcing bars on this mesh in a grid pattern and spray mortar or concrete on this grid reinforcing bar to form a grid-like frame made of mortar or concrete. In the method of construction, a cross rail that is composed of an arcuate member having a predetermined height and width and a connecting member that connects the arcuate members together, and that appropriately connects a horizontal crosspiece that horizontally connects one leg portion and the other leg portion of the arcuate member. After placing the inspection frame provided at the height position at an appropriate interval such that the arcuate member straddles the rebar, the rebar is bound to the cross rail and is held in a floating state, and the mortar is held. Or it is characterized by spraying concrete.
【０００８】これらのいずれの発明においても、網状体
と鉄筋とが結束するようにしてもよく、弓状部材の両下
端部を折曲して沈み防止部を形成してもよく、また、検
測枠を構成する部材として防錆加工を施した針金を用い
てもよい。In any of these inventions, the net-like member and the reinforcing bar may be bound together, or both lower ends of the arcuate member may be bent to form a sink preventing portion. You may use the wire which gave the rust prevention process as a member which comprises a measuring frame.
【０００９】[0009]
【作用】第１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。この検測枠Ｋを構成する弓状部材１および連結部
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に対して適宜高さの位置（例え
ば約５ｃｍ）に溶接またはハンダ付けによって固着され
ている。The measuring frame K used in the first invention has a predetermined height H (for example, 10 cm) and a width W as shown in FIG.
(For example, 30 cm), and two connecting members 2 connecting the two arcuate members 1. The bow-shaped member 1 and the connecting member 2 which constitute the inspection frame K are made of a wire having an appropriate thickness and subjected to rust-proof processing, and the connecting member 2 is at a position at a suitable height with respect to the bow-shaped member 1 ( It is fixed by welding or soldering to, for example, about 5 cm.
【００１０】そして、法面５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５を整形
した後、図１に示すように、法面５全体に菱形金網など
の網状体６を敷設し、この網状体６上に鉄筋７を格子状
に敷設し、鉄筋７と網状体６とを結束線８を用いて適宜
箇所結束する。そして、前記検測枠Ｋを、図４に示すよ
うに、弓状部材１が鉄筋７を跨ぐようにして、適宜の間
隔をおいて配置する。When forming the lattice-shaped method frame 13 made of a predetermined mortar or the like on the slope 5, the slope 5 is shaped, and then, as shown in FIG. The reticulated body 6 is laid, the reinforcing bars 7 are laid on the reticulated body 6 in a grid pattern, and the reinforcing bars 7 and the reticulated body 6 are bundled at appropriate points with a tie wire 8. Then, the test Hakawaku K, as shown in FIG. 4, the arcuate member 1 so as to straddle the rebar 7, arranged at appropriate intervals.
【００１１】その後、例えば防錆加工を施した適宜太さ
の針金よりなる保持部材９を、検測枠Ｋの一方の連結部
材２の直角方向から差込み、鉄筋７と網状体６との間を
挿通させ、他方の連結部材２まで至らせて、この保持部
材９の両端部を両連結部材２に載置した状態に架設し
て、結束線１０を用いて連結部材２に結束する。これに
より、鉄筋７は網状体６とともに浮設され、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、格子状の鉄筋７にモルタル等１２を吹き付ける
のである。After that, a holding member 9 made of, for example, a wire having an appropriate thickness, which has been subjected to rust prevention, is inserted from the direction perpendicular to the one connecting member 2 of the inspection frame K, and the space between the reinforcing bar 7 and the mesh body 6 is inserted. The holding member 9 is inserted and passed to the other connecting member 2, and both ends of the holding member 9 are erected in a state of being placed on both connecting members 2 and bound to the connecting member 2 using a binding wire 10. As a result, the reinforcing bar 7 is floated together with the mesh body 6 and is held at a predetermined height position. In this state, as shown in FIG. 1 and FIG. 3, mortar or the like 12 is sprayed onto the grid-shaped reinforcing bars 7.
【００１２】このようにすることにより、所定の高さ位
置に保持された鉄筋７の周囲に所定厚みのモルタル等１
２を吹き付けることができ、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５に確実に
形成することができる。By doing so, the mortar or the like 1 having a predetermined thickness is provided around the reinforcing bar 7 held at a predetermined height position.
2 can be sprayed, and 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 5.
【００１３】また、第２の発明で用いる検測枠Ｋは、鉄
筋７の保持部材としての横桟１６Ｂが予め検測枠Ｋに形
成されているもので、この検測枠Ｋを用いても、上記第
１の発明で用いる検測枠Ｋと同様の効果を奏する。Further, in the inspection frame K used in the second invention, the horizontal rail 16B as a holding member for the reinforcing bar 7 is formed in advance in the inspection frame K, and the inspection frame K can also be used. The same effect as that of the inspection frame K used in the first invention is obtained.
【００１４】[0014]
【実施例】図１〜図４は、第１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
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。1 to 4 show an example of a cast-in-place method according to the first 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 includes two arcuate members 1 having a predetermined height H (for example, 10 cm) and a width W (for example, 30 cm) and two connecting members for connecting the two arcuate members 1. And two connecting members 2.
【００１５】すなわち、上記弓状部材１および連結部材
２は、例えば直径４ｍｍ程度の防錆加工を施した針金か
らなる。そして、この実施例においては、弓状部材１の
両下端部は、適宜長さ（例えば５ｃｍ程度）例えば互い
に向き合う方向に折曲して沈み防止部３が形成されてい
る。また、二つの連結部材２は、対向する二つの弓状部
材１の両脚部１ａ，１ａ、１ｂ，１ｂ間をそれぞれ連結
するよう、その両端部が溶接またははんだ付けされ、弓
状部材１とともに一つのフレームを形成している。な
お、符号４は、弓状部材１と連結部材２との連結点であ
る。That is, the arcuate member 1 and the connecting member 2 are made of, for example, a wire having a diameter of about 4 mm and subjected to anticorrosion treatment. Further, in this embodiment, both lower end portions of the arcuate member 1 are bent to appropriate lengths (for example, about 5 cm), for example, in directions facing each other, and the sunken portions 3 are formed. Further, the two connecting members 2 are welded or soldered at their both ends so as to connect between the leg portions 1 a, 1 a, 1 b, 1 b of the two facing arcuate members 1, and the two connecting members 2 are joined together with the arcuate member 1. Form one frame. Reference numeral 4 is a connecting point between the arcuate member 1 and the connecting member 2.
【００１６】なお、この実施例では、連結部材２は、弓
状部材１に対してその高さ方向のほぼ中間位置に固着さ
れているが、この高さに限られるものではない。連結部
材２の長さＬは、網状体６上の鉄筋７による格子枠の一
つの辺の長さよりも短かくてよく、適宜設定できるが、
この実施例では、４０〜５０ｃｍ程度である。In this embodiment, the connecting member 2 is fixed to the arcuate member 1 at a substantially middle position in the height direction, but the height is not limited to this. The length L of the connecting member 2 may be shorter than the length of one side of the lattice frame formed by the reinforcing bars 7 on the mesh body 6, and can be set appropriately.
In this embodiment, it is about 40 to 50 cm.
【００１７】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。図１および図２に示すように、予め整形され
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を敷設する。この網状体６は、固定用アン
カー（図示してない）を用いて適宜法面５に固定され
る。そして、この網状体６上に鉄筋７を格子状に敷設
し、鉄筋７と網状体６とを結束線７を用いて適宜箇所結
束する（図４参照）。Next, an example of an in-situ frame method using the inspection frame K will be described with reference to FIGS. As shown in FIGS. 1 and 2, a mesh body 6 such as a rhombic wire mesh having a mesh size of about 5 to 6 cm is laid on a pre-shaped slope 5. The mesh body 6 is appropriately fixed to the slope 5 using a fixing anchor (not shown). Then, the reinforcing bars 7 are laid in a grid pattern on the net-like body 6, and the reinforcing bars 7 and the net-like body 6 are bundled at appropriate points by using the binding wires 7 (see FIG. 4).
【００１８】そして、検測枠Ｋを、図４に示すように、
弓状部材１が鉄筋７を跨ぐようにして、適宜の間隔をお
いて配置する。そして、例えば防錆加工を施した適宜太
さの針金よりなる保持部材９を、検測枠Ｋの一方の連結
部材２の直角方向から差込み、矢印Ａで示すように、鉄
筋７と網状体６との間を挿通させ、他方の連結部材２ま
で至らせて、この保持部材９の両端部を両連結部材２に
載置した状態に架設して、結束線１０を用いて連結部材
２に結束する。これにより、鉄筋７が網状体６とともに
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。そして、図２に示すように、鉄
筋７と保持部材９との交点において両者７，９を結束線
１１を用いて結束する。Then, the inspection frame K is, as shown in FIG.
Arcuate member 1 so as to straddle the rebar 7, arranged at appropriate intervals. Then, for example, a holding member 9 made of a wire of an appropriate thickness that has been subjected to rust prevention is inserted from the direction perpendicular to one of the connecting members 2 of the inspection frame K, and as shown by an arrow A, the reinforcing bar 7 and the mesh 6 are provided. And the other connecting member 2 and the both ends of the holding member 9 are laid on both connecting members 2 and bound to the connecting member 2 using a binding wire 10. To do. As a result, the reinforcing bars 7 are held together with the net-like body 6 at a predetermined height position (in this case, a position which is about half the height of the arcuate member 1). Then, as shown in FIG. 2, the reinforcing bars 7 and the holding member 9 are bound together by using binding wires 11 at the intersections.
【００１９】ところで、この発明で用いる検測枠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、鉄筋７を網状体６とともに浮設保持するた
めのスペーサとなるものであるから、鉄筋７によって形
成される格子枠の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。 Incidentally, the inspection frame K used in the present invention is:
Since it serves as a guide for the spraying width and spraying height of mortar, etc., and serves as a spacer for suspending and holding the reinforcing bar 7 together with the mesh body 6, at least one is provided on the side of the lattice frame formed by the reinforcing bar 7. As long as the side length is 1 to 2 m and the length L of the inspection frame K is 40 to 50 cm as in this embodiment, only one inspection frame K is provided on each side. Good. Further, when the length of the side becomes larger, two or more inspection frames K having the above dimensions may be provided, but the length L of the inspection frame K is made larger (for example, 1.3 to 1. 5m or so) but it may also be set.
【００２０】以上のように構成して浮設された鉄筋７
に、例えば含水率が７〜８％程度の低スランプのモルタ
ル等１２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７によっ
て形成される格子枠の各辺には、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１３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１
０〜１５ｃｍ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。なお、図１および図３において、符号１４はモルタ
ル等１２を吹き付けるためのノズルである。Reinforcing bar 7 constructed as described above and floated
For example, a low slump mortar or the like 12 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, since each side of the lattice frame formed by the reinforcing bars 7 is provided with an inspection frame K that serves as a guide for the spraying width and the spraying height of the mortar 12 or the like, the mortar or the like according to the inspection frame K is provided. 12
It is possible to form the lattice-shaped method frame 13 made of mortar or the like having a predetermined size only by spraying. That is,
In this embodiment, the lower end width is 30 to 35 cm and the height is 1
Lattice method frame 13 made of mortar or the like having a size of 0 to 15 cm
Can be easily formed, and the grid-shaped method frame 13 made of mortar or the like having a predetermined size and a predetermined strength can be reliably formed. 1 and 3, reference numeral 14 is a nozzle for spraying the mortar 12 or the like.
【００２１】そして、格子枠を構成する鉄筋７は、網状
体６とともに検測枠Ｋに挿入された保持部材９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５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７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。The reinforcing bars 7 constituting the lattice frame are floated and held together with the net-like body 6 by a holding member 9 inserted in the inspection frame K, so that the reinforcing bars 7 together with the net-like body 7 are separated from the slope 5 by a predetermined height. It is held in a floating state, and its periphery is surrounded by mortar 12 having a predetermined thickness and a predetermined width. Therefore, the grid-shaped method frame 13 made of mortar or the like in which the periphery of the reinforcing bar 7 is surrounded by the mortar or the like 12 according to the standard
Can be formed easily and surely.
【００２２】そして、上記検測枠Ｋは、弓状部材１と連
結部材２とからなる簡単な形状であるため、その非使用
時においてはコンパクトに重ね合わせて保管でき、運搬
など取扱い上きわめて都合がよい。Since the inspection frame K has a simple shape consisting of the arcuate member 1 and the connecting member 2, it can be compactly stacked and stored when not in use, which is extremely convenient for handling such as transportation. Is good.
【００２３】以上のようにして法面５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物の根や茎
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 5 as described above, soil, organic material,
A vegetation material formed by mixing a water retention material (soil improvement material) and seeds such as turfgrass, wild grass, shrubs, etc., is sprayed using a power spray machine or the like to form a vegetation layer 15 (see FIG. 1).
Instead of this, vegetation is introduced into a bedrock slope or the like that has been considered impossible by placing a vegetation bag (not shown) in which the vegetation material is filled in a coarse bag. This greatly contributes to the improvement of the landscape of the slope and the permanent stability of the slope by the roots and stems of the plants.
【００２４】図５は、第２の発明において用いられる検
測枠Ｋの一例を示すもので、この図５に示す検測枠Ｋに
おいては、二つの弓状部材１が、二つの長辺１６Ａと二
つの短辺１６Ｂとからなる矩形体１６によって連結され
ている。この矩形体１６は、例えば防錆加工を施した針
金からなり、その二つの短辺１６Ｂに二つの弓状部材１
が溶接などによりそれぞれ固着されている。すなわち、
この検測枠Ｋにおいては、二つの長辺１６Ａが図４に示
した検測枠Ｋにおける連結部材２に相当し、二つの短辺
１６Ｂ（以下、横桟１６Ｂという）が鉄筋７の保持部材
として機能する。言い換えれば、両弓状部材１のそれぞ
れにおいて、一方の脚部１ａと他方の脚部１ｂとが水平
な横桟１６Ｂによって連結されている。FIG. 5 shows an example of the inspection frame K used in the second invention. In the inspection frame K shown in FIG. 5, two arcuate members 1 have two long sides 16A. And two short sides 16B are connected by a rectangular body 16. This rectangular body 16 is made of, for example, rust-proof wire, and has two arcuate members 1 on its two short sides 16B.
Are fixed by welding or the like. That is,
In this inspection frame K, two long sides 16A correspond to the connecting member 2 in the inspection frame K shown in FIG. 4, and two short sides 16B (hereinafter referred to as horizontal rails 16B) are holding members for the reinforcing bars 7. Function as. In other words, in each of the arcuate members 1, the one leg portion 1a and the other leg portion 1b are connected by the horizontal crosspiece 16B.
【００２５】この図５に示した検測枠Ｋを用いて現場打
ち法枠工法を行う場合、網状体６上に鉄筋７を敷設し
て、両者６，７を結束線８で結束した後、この検測枠Ｋ
をその弓状部材１が鉄筋７を跨ぐようにして配置する。
その後、鉄筋７を持ち上げ、これを、検測枠Ｋの横桟１
６Ｂの下側に当接させるようにして結束線１７を用いて
結束する。これによって、格子枠を構成する鉄筋７およ
び網状体６は、法面５から所定高さだけ浮いた状態に保
持される。このようにした状態で、上記第１の発明と同
様にモルタル等１２を吹き付けることにより、所望の格
子状法枠１３を形成することができる。In the case of performing the in-situ casting frame construction method using the inspection frame K shown in FIG. 5, a reinforcing bar 7 is laid on the mesh body 6, and both 6 and 7 are bound by a binding wire 8 and then This inspection frame K
Is arranged so that the arcuate member 1 straddles the reinforcing bar 7.
After that, the reinforcing bar 7 is lifted, and the reinforcing bar 7 is lifted to the cross rail 1 of the inspection frame K.
6B is bound by using a binding wire 17 so as to abut on the lower side. As a result, the reinforcing bars 7 and the net-like body 6 that form the lattice frame are held in a state of being floated from the slope 5 by a predetermined height. In this state, the desired lattice-shaped method frame 13 can be formed by spraying the mortar 12 or the like as in the first aspect of the invention.
【００２６】図５に示した検測枠Ｋを用いた場合、鉄筋
７を浮設保持するための横桟１６Ｂが予め検測枠Ｋに形
成されているので、鉄筋７を持ち上げるだけで結束を容
易に行なえる。When the inspection frame K shown in FIG. 5 is used, the horizontal bar 16B for holding the reinforcing bar 7 in a floating manner is formed on the inspection frame K in advance. Easy to do.
【００２７】そして、この実施例においても、弓状部材
１に対して矩形体１６を固着する高さを任意設定できる
ことは言うまでもない。そして、この実施例では、連結
部分１６Ａと横桟１６Ｂとが一体の枠体を構成している
が、連結部分１６Ａと横桟１６Ｂとを別体構成としてあ
ってもよい。Also in this embodiment, it goes without saying that the height at which the rectangular body 16 is fixed to the arcuate member 1 can be arbitrarily set. Further, in this embodiment, the connecting portion 16A and the horizontal rail 16B form an integral frame body, but the connecting portion 16A and the horizontal rail 16B may be separately configured.
【００２８】上記いずれの発明においても、網状体６と
鉄筋７とを結束していたが、このようにする必要はな
く、例えば図６に示すように、保持部材９によって鉄筋
７のみを浮設保持するようにしてもよい。すなわち、保
持部材９によって鉄筋７を所定高さ（例えば５ｃｍ）に
保持し、交点位置においてアンカー１８によって押さえ
る。一方、網状体６は、前記鉄筋７より低い位置にあ
る。このように構成することにより、鉄筋７のまわりに
は所定の被り厚のモルタル等よりなる層が形成されると
ともに、前記植生材料の吹き付け厚さが５ｃｍ以下であ
った場合、網状体６が吹き付けられた植生材料のほぼ中
間に位置し、その流亡を効果的に防止することができ
る。。なお、このように、鉄筋７と網状体６とを結束し
ないようにする方法は、上記図５に示した工法において
も同様に実施できる。In any of the above inventions, the net-like body 6 and the reinforcing bar 7 are bound together, but this is not necessary. For example, as shown in FIG. 6, only the reinforcing bar 7 is floated by the holding member 9. You may make it hold | maintain. That is, the reinforcing member 7 is held at a predetermined height (for example, 5 cm) by the holding member 9, and is pressed by the anchor 18 at the intersection position. On the other hand, the mesh body 6 is located lower than the reinforcing bar 7. With such a structure, a layer made of mortar or the like having a predetermined covering thickness is formed around the reinforcing bar 7, and when the spray thickness of the vegetation material is 5 cm or less, the mesh body 6 is sprayed. It is located almost in the middle of the vegetation material and can effectively prevent its runoff. . The method of not binding the reinforcing bars 7 and the net-like body 6 in this way can be similarly performed in the construction method shown in FIG.
【００２９】そして、上記いずれの実施例においても、
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、一つの辺に設けられる鉄筋６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４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。In any of the above embodiments,
The inspection frame K may be formed of plastic by integral molding. And three or more bow-shaped members 1 may be provided. Further, the number of the reinforcing bars 6 provided on one side is not limited to one and may be two or more. In that case, four long anchors are driven into the slope 4 near the intersection of the reinforcing bars to form the reinforcing bars in a cross beam shape. The support may be bundled and stacked in one or several steps.
【００３０】[0030]
【発明の効果】以上説明したように、第１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弓状部材どうし
を連結する連結部材とからなる検測枠を、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た
後、連結部材の間隔よりやや長い保持部材を、鉄筋と網
状体との間を通すようにして所定の高さに位置において
水平に架設した状態で、モルタルまたはコンクリートを
吹き付けるようにしており、また、第２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弓状部材どうしを連
結する連結部材とからなり、弓状部材の一方の脚部と他
方の脚部とを水平に連結する横桟を適宜高さ位置に備え
た検測枠を、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た後、鉄筋を前記横桟に結束し
て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。As described above, according to the first aspect of the present invention, after the reticulated body is laid on the slope, the rebars are arranged in a grid on the reticulated body, and the mortar or concrete is placed on the reticulated rebar. In a cast-in-place method frame method of spraying to form a grid-like frame made of mortar or concrete, a bow is provided with an inspection frame composed of an arcuate member having a predetermined height and width and a connecting member connecting the arcuate members together. Jo member so as to straddle the rebar, after placing at appropriate intervals, a slightly longer retention member than the interval of the connecting member, positioned at a predetermined height way pass between the reinforcing bars and the mesh body In the state of being laid horizontally in, the mortar or concrete is sprayed, and in the second invention, after laying a mesh body on the slope, arranging the reinforcing bars in a grid on the mesh body, This In cast-in-place process frame construction method to form a grid-like method frame in a grid-like reinforcing bars by spraying mortar or concrete made of mortar or concrete,
A horizontal bar that horizontally connects one leg of the arched member and the other leg of the arched member is formed of an arcuate member having a predetermined height and width, and a coupling member that couples the arched members together. the test Hakawaku provided in, as the arcuate members straddles the rebar, after placing at appropriate intervals, rebar a state in which binding to浮設held in the rungs, the mortar or concrete I am trying to spray it.
【００３１】したがって、上記いずれの発明において
も、モルタル等の吹き付けムラがなくなるとともに、鉄
筋や網状体を所定高さ位置に保持することができ、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。Therefore, in any of the above-mentioned inventions, the unevenness of spraying of mortar and the like can be eliminated, and the reinforcing bars and nets can be held at a predetermined height position, and the reinforcing bars have a predetermined covering thickness around the reinforcing bars. It is possible to easily form a lattice-shaped method frame made of mortar or the like having dimensions and strength on the slope.
【００３２】そして、上記第１の発明においては、検測
枠が弓状部材と連結部材とからなる簡単な形状であるた
め、その非使用時においてはコンパクトに重ね合わせて
保管でき、運搬など取扱い上きわめて都合がよいといっ
た実用的効果がある。また、第２の発明においては、鉄
筋を持ち上げるだけで結束を容易に行なえる。In the first invention, the inspection
The frame has a simple shape consisting of an arcuate member and a connecting member.
Therefore, when not in use, stack them compactly.
It can be stored and is very convenient for handling such as transportation.
There are practical effects. Further, in the second invention, the binding can be easily performed only by lifting the reinforcing bar.
【００３３】特に、鉄筋と網状体とを結束しない場合
は、網状体が吹き付けられた植生材料のほぼ中間に位置
し、その流亡を効果的に防止するといった効果を奏す
る。In particular, when the reinforcing bars and the net-like body are not bound together, the net-like body is located approximately in the middle of the sprayed vegetation material, and the effect of effectively preventing the runoff is exhibited.
【００３４】そして、前記弓状部材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。When the sink preventing portion is formed on the arcuate member, it is possible to prevent the inspection frame 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１】第１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 according to the first invention.
【図２】前記工法の要部を示す図である。FIG. 2 is a view showing a main part of the 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 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 method.
【図５】第２の発明で用いる検測枠の一例を示す斜視図
である。FIG. 5 is a perspective view showing an example of an inspection frame used in the second invention.
【図６】鉄筋と網状体とを結束しないようにした工法の
一例を示す正面図である。FIG. 6 is a front view showing an example of a construction method in which the reinforcing bars and the net-like body are not bound together.
１…弓状部材、１ａ，１ｂ…脚部、２…連結部材、３…
沈み防止部、５…法面、６…網状体、７…鉄筋、９…保
持部材、１２…モルタルまたはコンクリート、１３…格
子状法枠、１６Ａ…連結部材、１６Ｂ…横桟、Ｋ…検測
枠。DESCRIPTION OF SYMBOLS 1 ... Bow-shaped member, 1a, 1b ... Leg part, 2 ... Connection member, 3 ...
Settling prevention part, 5 ... Slope, 6 ... Reticulate body, 7 ... Reinforcing bar, 9 ... Holding member, 12 ... Mortar or concrete, 13 ... Lattice method frame, 16A ... Connecting member, 16B ... Horizontal bar, K ... Inspection. frame.
Claims (5)
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弓状部材
どうしを連結する連結部材とからなる検測枠を、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
置した後、連結部材の間隔よりやや長い保持部材を、鉄
筋と網状体との間を通すようにして所定の高さに位置に
おいて水平に架設した状態で、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 mesh body on the slope, arranging reinforcing bars on the mesh body in a grid pattern and spraying mortar or concrete on the grid reinforcing bar to form a grid-like frame made of mortar or concrete. in cast-in-place method form System for the detection Hakawaku comprising a connecting member for connecting the arcuate member and the arcuate members to each other having a predetermined height and width, the arcuate member so as to straddle the rebar, the appropriate After placing them at intervals, spray a mortar or concrete with a holding member that is slightly longer than the distance between the connecting members and is horizontally installed at a predetermined height so as to pass between the reinforcing bars and the mesh. The site-casting method frame construction method that is characterized by that.
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弓状部材
どうしを連結する連結部材とからなり、弓状部材の一方
の脚部と他方の脚部とを水平に連結する横桟を適宜高さ
位置に備えた検測枠を、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た後、鉄筋を前記横
桟に結束して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。2. After laying a mesh body on the slope, arranging the reinforcing bars on the mesh body in a grid shape, and spraying mortar or concrete on the grid reinforcing bar to form a grid-like frame made of mortar or concrete. In the in-situ casting frame construction method, a bow member having a predetermined height and width and a connecting member for connecting the bow members are connected, and one leg portion of the bow member and the other leg portion are horizontally connected. After placing the inspection frame with the horizontal rail at an appropriate height position at an appropriate interval so that the arcuate member straddles the reinforcing bar, the reinforcing bars are bound to the horizontal rail and held in a floating manner. The cast-in-place frame method, which is characterized by spraying mortar or concrete in the finished state.
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 or 2, wherein the reticulated body and the reinforcing bars are bound together.
部を形成してなる請求項１〜３のいずれかに記載の現場
打ち法枠工法。4. The cast-in-place frame construction method according to claim 1, wherein both lower end portions of the arcuate member are bent to form a sink preventing portion.
た針金からなる請求項１〜４のいずれかに記載の現場打
ち法枠工法。5. The cast-in-place frame construction method according to claim 1, wherein the member constituting the inspection frame is made of rust-proof wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6138209A JP2694327B2 (en) | 1994-05-28 | 1994-05-28 | Cast-in-place method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6138209A JP2694327B2 (en) | 1994-05-28 | 1994-05-28 | Cast-in-place method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07317074A JPH07317074A (en) | 1995-12-05 |
| JP2694327B2 true JP2694327B2 (en) | 1997-12-24 |
Family
ID=15216638
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6138209A Expired - Fee Related JP2694327B2 (en) | 1994-05-28 | 1994-05-28 | Cast-in-place method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2694327B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09242079A (en) * | 1996-03-07 | 1997-09-16 | Fuji Fuoresuto Kk | Slope frame and execution method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57224A (en) * | 1980-05-30 | 1982-01-05 | Sakuyoshi Izumi | Protection work of slope and modified ruler used therefor |
-
1994
- 1994-05-28 JP JP6138209A patent/JP2694327B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH07317074A (en) | 1995-12-05 |
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