JPH01178614A - Slope stabilizing construction - Google Patents
Slope stabilizing constructionInfo
- Publication number
- JPH01178614A JPH01178614A JP33660787A JP33660787A JPH01178614A JP H01178614 A JPH01178614 A JP H01178614A JP 33660787 A JP33660787 A JP 33660787A JP 33660787 A JP33660787 A JP 33660787A JP H01178614 A JPH01178614 A JP H01178614A
- Authority
- JP
- Japan
- Prior art keywords
- slope
- frame
- hole
- connectors
- anchor bolts
- 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.)
- Pending
Links
- 238000010276 construction Methods 0.000 title claims description 4
- 230000000087 stabilizing effect Effects 0.000 title 1
- 238000000034 method Methods 0.000 claims abstract description 5
- 230000000452 restraining effect Effects 0.000 claims description 6
- 230000006641 stabilisation Effects 0.000 claims description 2
- 238000011105 stabilization Methods 0.000 claims description 2
- 239000000945 filler Substances 0.000 claims 1
- 239000012779 reinforcing material Substances 0.000 claims 1
- 239000004570 mortar (masonry) Substances 0.000 abstract description 5
- 239000000463 material Substances 0.000 abstract description 2
- 230000000149 penetrating effect Effects 0.000 abstract 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 230000003014 reinforcing effect Effects 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 229910001335 Galvanized steel Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000008397 galvanized steel Substances 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
Landscapes
- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明はアースアンカーなど、アンカーボルトを用い
た斜面安定工法に関する。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a slope stabilization method using anchor bolts such as earth anchors.
最近は、アースネイリング工法など、多数の７ンカーボ
ルトを斜面に打ち、斜面を補強する工法が多用されるよ
うになってきた。この場合、従来はアンカーボルトを打
った後に、アンカーボルトの頭に抑えプレートをボルト
締めし、その上からモルタル吹きつけなどの方法で、斜
面安定を行ってきた。Recently, construction methods such as the earth nailing method, which strengthen slopes by driving multiple 7-anchor bolts into them, have become popular. In this case, conventionally, after driving the anchor bolt, a restraining plate was bolted to the head of the anchor bolt, and then mortar was sprayed over the plate to stabilize the slope.
しかし、アンカーボルトで斜面を補強した上、アンカー
ボルト同士を接続し、より補強の効果を大きくすると共
に、アンカーボルトの間の斜面を抑えたいという要望が
出てきた。However, in addition to reinforcing the slope with anchor bolts, there has been a desire to connect the anchor bolts to each other to further increase the reinforcing effect and to suppress the slope between the anchor bolts.
この発明はこのような要望に応えることを目的としてい
る。This invention aims to meet such demands.
この問題を解決するため、この発明では、帯状の枠板と
、周囲に枠板との連結腕が突出し、中央に５０〜１５０
ψの貫通孔がある接合具を用いて、法枠を構成する。In order to solve this problem, in this invention, a belt-shaped frame plate and connecting arms with the frame plate protrude around the periphery, and a 50 to 150
Construct the legal frame using a connector with a through hole of ψ.
その方法は、帯状の枠板を、つぎつぎと接合具の連結腕
に取付けて、格子状ないしトラス状に絹み上げる。The method involves attaching band-shaped frame plates one after another to the connecting arms of the connector and creating a lattice or truss shape.
組み上げられた法枠の交点の接合具の貫通孔を通して、
アンカーボルトを打ち込み、アンカーボルトの頭には、
抑えプレートを差込んで、ボルト締め；−７、接合具を
抑え込む。Through the through holes of the joints at the intersections of the assembled legal frames,
Drive the anchor bolt into the head of the anchor bolt,
Insert the holding plate and tighten the bolts; -7. Hold down the joint.
抑えプレー１−で抑え込む前に、モルタルなどを貫通孔
に充填するとか、補強用のパイプを装填するなどすると
、より確りと連結される。If the through holes are filled with mortar or a reinforcing pipe before being held down with the holding play 1-, the connection will be made more securely.
このように構成すると、法枠は、従来から多用されてい
る軽量法枠と同様の手軽さでもって施工でき、その接合
具の貫通孔にアンカーボルトを打ち込み、抑えプレート
で接合具を抑え込むので、アンカーボルト同士は枠板で
もって連結される。With this structure, the legal frame can be constructed with the same ease as the lightweight legal frame that has been widely used in the past. Anchor bolts are driven into the through holes of the joints, and the joints are held down by the restraining plates, so The anchor bolts are connected by a frame plate.
枠板は接合具に連結されているので、枠板が押−ヒられ
る力が加えられれば、接合具を通じてアンカーボルトに
伝達され、アンカーボルトの引張り力で斜面は抑えられ
る。Since the frame plate is connected to the joint, if a force is applied to the frame plate, it is transmitted to the anchor bolt through the joint, and the slope is suppressed by the tensile force of the anchor bolt.
貫通孔は大きいので、アンカーボルトの打設に先立って
岩盤にドリルで削孔する場合などにも好都合である。Since the through hole is large, it is also convenient for drilling into rock prior to driving an anchor bolt.
〔実施例１〕 以下、本発明の実施例を図面に基づき詳細に説明する。[Example 1] Hereinafter, embodiments of the present invention will be described in detail based on the drawings.
接合具
厚さ２．３ｍｍの亜鉛メツキ鋼板１０をプレスで第１図
に示すような略長方形に打ち抜く。長辺の同じ側から中
央に達する平行な二条の切込み１１を設げ、その直ぐ外
側に、切込みに平行な屈折線１２を設ける。屈折線の外
側は、本体部より細く形成された連結腕形成部１３であ
り、連結腕形成部の中央部に連結孔１４を設ける。A galvanized steel plate 10 having a thickness of 2.3 mm is punched out into a substantially rectangular shape as shown in FIG. 1 using a press. Two parallel cuts 11 are provided that reach the center from the same side of the long side, and a refraction line 12 that is parallel to the cuts is provided just outside of the cuts 11. Outside the bending line is a connecting arm forming part 13 formed thinner than the main body, and a connecting hole 14 is provided in the center of the connecting arm forming part.
このような打抜き平板を、第２図に示すように、屈折線
１２の個所で同じ側に約４５度屈折し、組板１とした、
。As shown in FIG. 2, such a punched flat plate was bent at about 45 degrees to the same side at the bend line 12 to form a set plate 1.
.
次に、第３図に示すように、４枚の組板１を切込み１１
を噛み合わせるように、立体的に組立て、接合具Ａを構
成する。Next, as shown in FIG.
are assembled three-dimensionally so as to mesh with each other to form the joint tool A.
接合具の中央には、貫通孔１５が形成され、周囲乙こは
連結腕形成部が二枚型なり、放射状に突出した連結腕１
６が構成される。A through hole 15 is formed in the center of the connector, and the connecting arm forming portion is formed in two pieces around the periphery, and connecting arms 1 protrude radially.
6 is composed.
貫通孔には直径２５〜５０ψのアンカーボルトを打ち込
むが、斜面が硬い場合にはドリルを用いて孔を開ける必
要があり、又、アンカーボルトの斜面に対する角度を選
定するので、ある程度の余裕が必要である。この見地か
ら貫通孔の大きさは直径ないし一辺の大きさは５０〜１
５０ｍｍが望ましい。An anchor bolt with a diameter of 25 to 50 ψ is driven into the through hole, but if the slope is hard, it is necessary to use a drill to drill the hole, and the angle of the anchor bolt to the slope is selected, so a certain amount of allowance is required. It is. From this point of view, the diameter or side size of the through hole should be 50 to 1
50mm is desirable.
片板Ｉ
厚さ１．６ｍＩＩの帯状の亜鉛メツキ鋼板をプレノツチ
ロールフォーミング成形により、第４図に示すような形
鋼からなる、長平方向に直な帯状の枠板２を形成する。Piece I A strip-shaped galvanized steel plate with a thickness of 1.6 mII is pre-notched roll forming to form a strip-shaped frame plate 2 made of a shaped steel as shown in FIG. 4 and straight in the longitudinal direction.
形鋼は断面が変形ｌ型であり、上下のフランジ２１の間
が、屈曲したウェブ２２で連続されている。つ１ブの巾
はｌＱｃｍであり。ウェブの中央の直線部には、横長孔
２３が等間隔で全長にわたり設けである。The section of the steel section is a deformed L-shape, and the upper and lower flanges 21 are connected by a bent web 22. The width of the tube is lQcm. In the central straight portion of the web, horizontally elongated holes 23 are provided at regular intervals over the entire length.
隻工
第５図に示すように、枠板２の端部を接合具への連結腕
１６にボルト・ナンドを用いて、次々と連結し、斜面上
に格子状の法枠を組み立てる。As shown in Fig. 5, the ends of the frame plates 2 are successively connected to the connecting arms 16 to the connectors using bolts and nuts, and a lattice-shaped legal frame is assembled on the slope.
第６図に示すように、接合具Ａの貫通孔１５をとおＬ７
て斜面３に、長さ数ｍ・直径３ ｃｍのアンカーボルト
４を打ち込む。As shown in FIG. 6, through the through hole 15 of the connector A,
and drive an anchor bolt 4 several meters long and 3 cm in diameter into the slope 3.
貫通孔の中のアンカーボルト４の周囲の隙間にはモルタ
ル５を充填する。A gap around the anchor bolt 4 in the through hole is filled with mortar 5.
５ｍｍ厚の鋼板の中央に丸孔をあけた抑えプレート４】
をアンカーボルトの頭に差し込み、その上からナツト４
２を締めて、抑えプレートで接合臭へと枠板２とを抑え
込む。Holding plate 4 with a round hole in the center of a 5mm thick steel plate]
into the head of the anchor bolt, and then tighten nut 4 from above.
2, and use a restraining plate to suppress the joint odor and frame board 2.
尚、法枠の形状は実施例に限定されることなく、斜め格
子状・トラス状など他の形状であってもよい。又、その
接合具の形状もアンカーボルトを打ち込む貫通孔があれ
ば、その形状に限定しない。Note that the shape of the legal frame is not limited to the embodiment, and may be other shapes such as a diagonal lattice shape or a truss shape. Further, the shape of the connector is not limited to any shape as long as it has a through hole into which an anchor bolt is driven.
この発明はこのように構成されているので、次のような
特長を有する。Since the present invention is configured as described above, it has the following features.
■ 法枠は、貫通孔をもった接合具を特殊のものにすれ
ば、従来から一般に用いられている軽量法枠と同様のも
のでよく、材料も安価であるし施工も簡単である。■ The legal frame may be similar to the lightweight legal frame commonly used in the past, as long as a special joint with through holes is used, and the material is inexpensive and construction is easy.
■ アンカーボルトと法枠が、接合具と抑え板によって
連結されているので、アンカーボルトは互いに結付けら
れると共に、法枠を押上ようとした、力は、アンカーボ
ルトによって抑制され、斜面が安定する。■ Since the anchor bolts and the slope are connected by the joints and restraining plates, the anchor bolts are tied to each other, and the force that would try to push up the slope is suppressed by the anchor bolts, making the slope stable. .
■ 枠板の構成する法枠の「まず−１の中には、植仕土
嚢袋などを設置して緑化するにＵ７ろ、モルタルを吹き
つけるにしろ、枠板によって脱落を防ぐことが可能で好
都合である。■ First of all, in the legal framework that the frame board consists of, whether you install planting sandbags, etc. for greening, or spray mortar, it is possible to prevent them from falling off using the frame board. It's convenient.
第１図は、接合具を形成する平板の一例を示す正面図、
第２図は、組板の平面図、
第３図は、接合具の平面図、
第４図は、枠板の一例を示す斜視図、
第５図は、組み立てた法枠の正面図、
第６図は、アンカーボルトを打設した状況を示す側断面
図である。Fig. 1 is a front view showing an example of a flat plate forming a joint, Fig. 2 is a plan view of a set of boards, Fig. 3 is a plan view of a joint, and Fig. 4 is an example of a frame plate. FIG. 5 is a front view of the assembled legal frame, and FIG. 6 is a side sectional view showing the state in which anchor bolts are driven.
Claims (2)
ある接合具の、連結腕に 帯状の枠板を、つぎつぎと取付けて、 斜面上に、格子状ないしトラス状の法枠を構成し、 上記貫通孔を通して、斜面にアンカーボルトを打ち込み
、 上記アンカーボルトの頭には、抑えプレートを差込んだ
上、ボルトを締め付けて、 上記接合具を抑え込むことを特徴とした、斜面安定工法
。(1) Connecting arms to the frame plate protrude around the periphery of the joint and have a through hole in the center, and the belt-shaped frame plates are attached one after another to the connecting arms to form a lattice-like or truss-like legal frame on the slope. An anchor bolt is driven into the slope through the through-hole, a restraining plate is inserted into the head of the anchor bolt, and the bolt is tightened to restrain the joining tool. Construction method.
立って、貫通孔の中に、充填材ないし補強材を装填する
ことを特徴とした、 特許構成の範囲第（１）項記載の斜面安定工法。(2) The slope stabilization method described in item (1) of the scope of the patent structure, which is characterized by loading a filler or reinforcing material into the through hole before inserting the restraining plate and tightening the bolts. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33660787A JPH01178614A (en) | 1987-12-31 | 1987-12-31 | Slope stabilizing construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33660787A JPH01178614A (en) | 1987-12-31 | 1987-12-31 | Slope stabilizing construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01178614A true JPH01178614A (en) | 1989-07-14 |
Family
ID=18300906
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP33660787A Pending JPH01178614A (en) | 1987-12-31 | 1987-12-31 | Slope stabilizing construction |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01178614A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010525466A (en) * | 2007-04-20 | 2010-07-22 | フィッシャー コントロールズ インターナショナル リミテッド ライアビリティー カンパニー | Pressure averaging detector tube for gas flow regulator |
-
1987
- 1987-12-31 JP JP33660787A patent/JPH01178614A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010525466A (en) * | 2007-04-20 | 2010-07-22 | フィッシャー コントロールズ インターナショナル リミテッド ライアビリティー カンパニー | Pressure averaging detector tube for gas flow regulator |
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