JPH052683Y2 - - Google Patents
Info
- Publication number
- JPH052683Y2 JPH052683Y2 JP1987090275U JP9027587U JPH052683Y2 JP H052683 Y2 JPH052683 Y2 JP H052683Y2 JP 1987090275 U JP1987090275 U JP 1987090275U JP 9027587 U JP9027587 U JP 9027587U JP H052683 Y2 JPH052683 Y2 JP H052683Y2
- Authority
- JP
- Japan
- Prior art keywords
- plate
- corrugated
- retaining wall
- shaft
- angle
- 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 - Lifetime
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- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案は、波形プレート板を用いた多角形立坑
用土留壁の隅角部継手部材に関する。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a corner joint member of a retaining wall for a polygonal shaft using a corrugated plate.
一般に、立坑を掘削する際には、周囲の土砂崩
壊を防止するために土留壁が用いられる。また、
通常の立坑断面は円形または小判形とされるが、
目的により多角形断面の方が立坑として優れてい
る場合がある。この多角形断面の立坑に対して用
いられる土留壁は、立坑形状に対応して、やはり
多角形状とする必要がある。
Generally, when excavating a vertical shaft, a retaining wall is used to prevent surrounding lands from collapsing. Also,
Normally, the cross section of a vertical shaft is circular or oval shaped.
Depending on the purpose, a polygonal cross section may be better for a shaft. The earth retaining wall used for a shaft with a polygonal cross section must also have a polygonal shape in accordance with the shape of the shaft.
この土留壁は、波形プレートの周縁にフランジ
を設けたライナプレートが用いられる。このライ
ナプレートは、波形プレートが用いられているた
め、加工上の制約から、第６〜７図に示される如
く、直線形ライナプレート１や円弧形ライナプレ
ート２の形状に限定されている。それ故、斯かる
ライナプレート１，２から画成される土留壁の形
状は、円弧、直線またはその組合せ断面形状とさ
れていた。したがつて、土留壁として多角形断面
が望ましい場合でも、円形断面や小判形断面で代
用されているのが実状である。これは、多角形隅
角部の接続方法に適切な手段がなかつたためであ
る。 This earth retaining wall uses a liner plate having a flange on the periphery of a corrugated plate. Since this liner plate uses a corrugated plate, due to processing constraints, the shape is limited to a linear liner plate 1 or an arcuate liner plate 2, as shown in FIGS. 6 and 7. Therefore, the shape of the earth retaining wall defined by the liner plates 1 and 2 has been a circular arc, a straight line, or a combination thereof. Therefore, even when a polygonal cross section is desirable for a retaining wall, the reality is that a circular or oval cross section is used instead. This is because there was no suitable means for connecting polygonal corners.
このような観点から、従来、多角形断面の立坑
用土留壁を形成するに際し、その隅角部にライナ
プレートとは異なる構造のジヨイントが用いられ
ているものが知られている。例えば、実開昭55−
40008号公報に示されているように、鋼板とフラ
ンジ、リブの組合せ構造や角パイプとリブ、フラ
ンジの結合構造からなるジヨイント部材を用いた
り、あるいは特開昭48−7521号公報に示されてい
るように、隅角部にアングル部材や楔型結合片を
用いてライナプレートを連結したりして多角形断
面の土留壁を構成している。 From this point of view, when forming a shaft retaining wall having a polygonal cross section, it has been known that joints having a structure different from that of liner plates are used at the corners of the retaining wall. For example, Utsukai 55-
As shown in Publication No. 40008, a joint member consisting of a combination structure of a steel plate, a flange, and a rib, or a joint structure of a square pipe, a rib, and a flange is used, or as shown in Japanese Patent Application Laid-Open No. 7521/1983. As shown in the figure, an earth retaining wall with a polygonal cross section is constructed by connecting liner plates to the corners using angle members or wedge-shaped connecting pieces.
ところが、前者のものは部材数が多く、その製
造が容易でないばかりか、ライナプレートの有す
る特性が該継手部材にて失われてしまう欠点を有
している。また後者のものは、例えば第５図に示
すように、隅角部に大きなモーメントＭが作用す
ると、図中の一点鎖線に示すように角が変形した
り、座屈等の強度に対しても弱いという問題点が
あつた。さらに、後者には偶部に楔型の当接部材
を設けることが記載されているが、偶部が広い鈍
角の場合はともかく、例えば直角になると、この
当接部材と直線形ライナプレートとが力学的に異
種部材としてなじまず、かえつて不測の応力集中
を招くという問題点があつた。そのために側圧等
の強大な荷重のかかる土留壁には使用しきれない
という問題があつた。
However, the former type has a large number of parts and is not easy to manufacture, and also has the disadvantage that the characteristics of the liner plate are lost in the joint member. In addition, in the latter case, as shown in Fig. 5, when a large moment M is applied to the corner, the corner deforms as shown by the dashed line in the figure, and the strength of buckling occurs. The problem was that it was weak. Furthermore, the latter describes that a wedge-shaped abutment member is provided at the joint, but regardless of the case where the joint has a wide obtuse angle, if the joint is at a right angle, for example, this abutment member and the linear liner plate The problem was that they did not fit together mechanically as different members, and instead caused unexpected stress concentration. For this reason, there was a problem that it could not be used for earth retaining walls that are subject to large loads such as lateral pressure.
本考案は上記従来の問題点に着目し、多角形立
坑用土留壁の隅角部手部材にして、直線形ライナ
プレートとの組合せで、隅角部を含め、土留壁全
体の断面構造を均一化して強度解析を容易にし、
十分な強度と簡易な構成により、波形プレートの
特性を有効に発揮することの可能な隅角部継手部
材を提供することを目的とする。 This invention focuses on the above-mentioned conventional problems, and uses a hand member at the corner of a polygonal shaft retaining wall, and in combination with a linear liner plate, the cross-sectional structure of the entire retaining wall, including the corner, is made uniform. to facilitate strength analysis.
It is an object of the present invention to provide a corner joint member that can effectively exhibit the characteristics of a corrugated plate with sufficient strength and a simple configuration.
上記目的を達成するために本考案は、多角形断
面を構成する立坑の内壁部に、波形プレートの周
縁部にフランジを有する直線形ライナプレートを
用いて土留壁を構築する波形プレート板を用いた
多角形立坑用土留壁の隅角部継手部材において、
前記直線形ライナプレートの一端部を傾斜切断
し、波形断面を露呈してなる一対の継手部片を形
成して、これら両継手部片を平鋼板を介してその
傾斜波形面を互いに合致させ、所定角度をもつて
当接し、かつ平鋼板両面に当接波形面に沿つて溶
接結合し、一体的に形成してなることを特徴とす
るものである。
In order to achieve the above object, the present invention uses a corrugated plate plate to construct an earth retaining wall by using a linear liner plate having a flange at the peripheral edge of the corrugated plate on the inner wall of a shaft that has a polygonal cross section. In corner joint members of earth retaining walls for polygonal shafts,
cutting one end of the linear liner plate at an angle to form a pair of joint pieces with exposed wave-shaped cross sections, and aligning the inclined wave-shaped surfaces of both joint pieces with each other through a flat steel plate, It is characterized in that it abuts at a predetermined angle and is integrally formed by welding to both surfaces of the flat steel plate along the abutting corrugated surfaces.
このような構成によれば、傾斜切断した波形の
断面を平鋼板の両面から合致させ、それぞれ波形
に沿つて溶接して一体化することにより、平鋼板
は薄いので強度計算上は点として扱うことがで
き、平鋼板を無視することができる。したがつ
て、隅角部部材を本体である直線部のライナプレ
ートと剛性の異ならない同じ強度の部材として取
り扱うことができる。そのため、土留壁の隅部に
ついても直線形ライナプレートと断面一様な構造
として計算を行うことができ、複雑な強度計算を
省略することができるので、強度解析が極めて容
易になり、ライナプレートの板厚等の選定を最適
化することができる。また、土留壁の隅角部に外
圧が作用した場合、直線形ライナプレートと同様
にたわみ性構造物としての特性を有し、十分に高
い断面性能をもたせることができる。
According to this configuration, the cross sections of the corrugated sections cut at an angle are matched from both sides of the flat steel plate, and by welding them together along the respective corrugations, the flat steel plate is thin, so it can be treated as a point in strength calculations. , and the flat steel plate can be ignored. Therefore, the corner member can be handled as a member having the same strength and no difference in rigidity as the liner plate of the straight part that is the main body. Therefore, it is possible to calculate the corners of the earth retaining wall as having a structure with a uniform cross section with the linear liner plate, and it is possible to omit complicated strength calculations, making strength analysis extremely easy. The selection of plate thickness etc. can be optimized. Furthermore, when external pressure is applied to the corners of the earth retaining wall, it has the characteristics of a flexible structure similar to a linear liner plate, and can have sufficiently high cross-sectional performance.
以下に、本考案の具体的実施例を図面を参照し
て詳細に説明する。尚、従来の隅角部継手部材と
同一構造部分には同一符号を付してその説明を省
略する。
Hereinafter, specific embodiments of the present invention will be described in detail with reference to the drawings. Incidentally, the same reference numerals are given to the same structural parts as those of the conventional corner joint member, and the explanation thereof will be omitted.
本実施例に係る隅角部継手部材を第１〜３図に
示す。この隅角部継手部材１０は、第１図に示さ
れるような直線形ライナプレート１の端部を傾斜
切断した一対の継手部片１１，１２から構成さ
れ、この両部片１１，１２を要求される角度に突
合せて構成されるものである。具体的には、一方
の継手部片１１は、波形プレート１３の側縁およ
び一方端縁に連続するフランジ１４を有し、他端
縁は波形面１５が露呈されているものである。波
形面１５は側縁フランジ１４とともに斜めに切断
された傾斜波形面とされている。この傾斜角度は
必要曲げ角度の1/2の角度であることが望ましい。 A corner joint member according to this embodiment is shown in FIGS. 1 to 3. This corner joint member 10 is composed of a pair of joint pieces 11 and 12 obtained by cutting the end of a linear liner plate 1 at an angle as shown in FIG. It is constructed by butting the angle at which the Specifically, one joint piece 11 has a flange 14 continuous to the side edge of the corrugated plate 13 and one end edge, and the corrugated surface 15 is exposed at the other end edge. The corrugated surface 15 is an inclined corrugated surface cut diagonally together with the side edge flange 14. This inclination angle is preferably 1/2 of the required bending angle.
また、他方の継手部片１２も、同様に波形プレ
ート１６の３周縁にフランジ１７を設け、一端縁
に傾斜波形面１８を形成しているものである。 Similarly, the other joint piece 12 has flanges 17 on three peripheral edges of the corrugated plate 16, and an inclined corrugated surface 18 on one end edge.
これら両継手部片１１，１２は、標準の直線形
ライナプレートを傾斜切断することによつて形成
すればよい。また、両継手部片１１，１２は、長
さが異なつており、土留壁の形成に際し、連結部
が千鳥配置となるように考慮されている。 Both joint pieces 11, 12 may be formed by bevel cutting a standard straight liner plate. Further, the lengths of both the joint pieces 11 and 12 are different, so that the connecting parts are arranged in a staggered manner when forming the retaining wall.
このような各継手部片１１，１２は、その傾斜
波形面１５，１８を平鋼板１９を介在させて当接
し、一体的に結合して、所定角度に形成するもの
である。この平鋼板１９は短冊形状のものであ
り、端縁フランジ１４，１７の長さを有し、波形
面１５，１８が包含される幅とされている。そし
て両継手部片１１，１２は、この平鋼板１９の両
面に当接され、波形線（破線部）に沿つて溶接さ
れ、一体的に結合される。したがつて、両者は各
波形面１５，１８の傾斜角度の合計角度の曲げ角
度を有する、第２〜３図に示すような隅角部継手
部材１０となるものである。なお、フランジ１
４，１７には連結ボルト用の透孔２０を設けてい
る。 Such joint pieces 11 and 12 are formed into a predetermined angle by having their inclined waveform surfaces 15 and 18 abut against each other with a flat steel plate 19 interposed therebetween, and are integrally connected. This flat steel plate 19 has a rectangular shape, has the length of the end flanges 14 and 17, and has a width that includes the corrugated surfaces 15 and 18. Both joint pieces 11 and 12 are brought into contact with both sides of this flat steel plate 19, and are welded along the wavy lines (broken line portions) to be integrally coupled. Therefore, both of them form a corner joint member 10 as shown in FIGS. 2 and 3, which has a bending angle equal to the sum of the inclination angles of the respective corrugated surfaces 15 and 18. In addition, flange 1
4 and 17 are provided with through holes 20 for connecting bolts.
次に本実施例の作用を説明する。 Next, the operation of this embodiment will be explained.
このような実施例に係る隅角部継手部材では、
それ自身外圧に強い撓み性構造物としての特性を
有し、また、波形プレート１３，１６と介在され
る平鋼板１９により充分高い断面性能をもち、隅
角部の曲げ剛性も高く、隅角部に生じる軸力及び
曲げモーメントにも充分耐え得るものとなる。 In the corner joint member according to such an embodiment,
It itself has the characteristics of a flexible structure that is strong against external pressure, and also has sufficiently high cross-sectional performance due to the corrugated plates 13 and 16 and the interposed flat steel plate 19, and has high bending rigidity at the corners. It can sufficiently withstand the axial force and bending moment generated in the process.
例えば第４〜５図に示すように、平鋼板１９に
よるものとアングル２１によるものを比較する
と、第５図のアングル２１を用いた場合、平面の
隅角部にモーメントＭが作用するとアングル２１
のＣ部が薄い（図中のl1）ためアングルの角が変
形する。これに対して第４図の本実施例によるも
のは、モーメントＭが作用しても隅角部の平鋼板
１９の巾l2が長いため隅角部の強度がアングル２
１を用いたものより強度が大きい。そのためにモ
ーメント載荷後の変形（90°を保つ角度）が、図
中において一点鎖線で示すように本実施例による
ものの方が少い。しかも直線形ライナプレートか
ら簡単に製作でき、溶接長も長いので結合強度も
大きいものである。 For example, as shown in FIGS. 4 and 5, when comparing the flat steel plate 19 and the angle 21, when the angle 21 shown in FIG. 5 is used, when the moment M acts on the corner of the plane, the angle 21
Since the C part of the frame is thin (l 1 in the figure), the angle of the angle is deformed. On the other hand, in the embodiment shown in FIG. 4, even when the moment M acts, the width l2 of the flat steel plate 19 at the corner portion is long, so the strength of the corner portion is reduced by the angle 2.
The strength is greater than that using 1. Therefore, the deformation after moment loading (angle maintained at 90°) is smaller in this example, as shown by the dashed line in the figure. Moreover, it can be easily manufactured from a straight liner plate, and the welding length is long, so the joint strength is high.
このように構成された隅角部継手部材１０を用
いて多角形立坑用土留壁を構築する場合を第８図
に示す。まず、施工箇所において、ライナプレー
トの幅に応じた深さ（標準0.5m）の長方形断面
の立坑２２を掘る（第８図Ａ）。この立坑２２の
各隅角部に、本実施例に係る継手部材１０を配置
する。そして、立坑２２の長辺に直線形ライナプ
レート１を挟み込み、継手部材１０の端縁フラン
ジ１４，１７にてボルト結合し、立坑２２の短辺
においては隣接する継手部材１０相互をやはりボ
ルト結合する（同Ｂ）。このようにして、１段目
の取付けが終了すると、更に0.5m立坑を掘削し、
プレートを連結し組立てるものである。この時、
上段のライナプレート１や継手部材１０の連結部
と、下段の連結部位置が一致しないように、千鳥
配置する（同Ｃ）。以上の繰返しにより、必要深
さまで掘削し、土留壁を完成させる。 FIG. 8 shows a case where an earth retaining wall for a polygonal shaft is constructed using the corner joint member 10 configured as described above. First, a vertical shaft 22 with a rectangular cross section and a depth corresponding to the width of the liner plate (standard 0.5 m) is dug at the construction site (Fig. 8A). The joint member 10 according to this embodiment is arranged at each corner of the shaft 22. Then, the linear liner plate 1 is sandwiched between the long sides of the shaft 22 and bolted together at the end flanges 14 and 17 of the joint member 10, and adjacent joint members 10 are also bolted together on the short side of the shaft 22. (Same B). In this way, once the installation of the first stage was completed, an additional 0.5m shaft was excavated.
It connects and assembles plates. At this time,
They are arranged in a staggered manner so that the connecting portions of the upper liner plate 1 and the joint member 10 do not coincide with the positions of the lower connecting portions (C). By repeating the above steps, excavation will be made to the required depth and the retaining wall will be completed.
このようにして形成される土留壁の全体構造を
第９図に示す。この場合、土留壁強度が設定強度
を満たせない場合は、同図に示されるように、適
宜位置にＨ形鋼２３やＬ形鋼などを段間に配設し
て、強度の増大を図ることは可能である。 The overall structure of the retaining wall thus formed is shown in FIG. 9. In this case, if the retaining wall strength does not meet the set strength, as shown in the same figure, H-beams 23, L-beams, etc. should be placed between the steps at appropriate positions to increase the strength. is possible.
以上説明したように本考案によれば、隅角部を
含め、土留壁全体の断面構造を均一化して強度解
析を容易にし、十分な強度と簡易な構成により、
波形プレートの特性を隅角部においても有効に発
揮させることのできる部材が得られる。
As explained above, according to the present invention, the cross-sectional structure of the entire retaining wall, including the corners, is made uniform to facilitate strength analysis, and with sufficient strength and a simple configuration,
A member is obtained that can effectively exhibit the characteristics of the corrugated plate even at the corners.
そのため、本考案に係る隅角部継手部材を用い
た土留壁は、立坑の内側から組立て作業をするこ
とができるので、安全な作業を行うことができる
とともに、立坑外側に不必要な作業用掘削を行う
必要がないため、掘削土砂量が削減され、しかも
異種の継手部材を用いずに作業できるので、現場
作業性が向上する。加えて、部材数及び製作工程
が少なく、経済性向上及び施工期間の短縮を図る
ことができる。 Therefore, the earth retaining wall using the corner joint member according to the present invention can be assembled from the inside of the shaft, which allows safe work and eliminates the need for unnecessary excavation outside the shaft. Since there is no need to carry out this process, the amount of excavated earth and sand is reduced, and work can be performed without using different types of joint members, improving field workability. In addition, the number of parts and manufacturing steps are small, making it possible to improve economic efficiency and shorten the construction period.
第１図は本実施例の分解斜視図、第２図は同外
面側斜視図、第３図は同内面側斜視図、第４図は
本実施例のモーメントを受けたときの平面説明
図、第５図は従来例の同説明図、第６図は直線形
ライナプレートの斜視図、第７図は円弧形ライナ
プレートの斜視図、第８図Ａ〜Ｃは土留壁の構築
工程を示す斜視図、第９図は土留壁の全体斜視図
である。
１０……隅角部継手部材、１１，１２……継手
部片、１３，１６……波形プレート、１５，１８
……傾斜波形部、１９……平鋼板、２１……立
坑。
Fig. 1 is an exploded perspective view of this embodiment, Fig. 2 is a perspective view of the outer side of the same, Fig. 3 is a perspective view of the inner side of the same, and Fig. 4 is an explanatory plan view of this embodiment when subjected to a moment. Fig. 5 is an explanatory diagram of the conventional example, Fig. 6 is a perspective view of a linear liner plate, Fig. 7 is a perspective view of an arcuate liner plate, and Figs. 8 A to C show the construction process of an earth retaining wall. FIG. 9 is a perspective view of the entire earth retaining wall. 10... Corner joint member, 11, 12... Joint piece, 13, 16... Corrugated plate, 15, 18
... Inclined corrugated section, 19 ... Flat steel plate, 21 ... Vertical shaft.
Claims (1)
レートの周縁部にフランジを有する直線形ライナ
プレートを用いて土留壁を構築する波形プレート
板を用いた多角形立坑用土留壁の隅角部継手部材
において、 前記直線形ライナプレートの一端部を傾斜切断
し、波形断面を露呈してなる一対の継手部片を形
成して、これら両継手部片を平鋼板を介してその
傾斜波形面を互いに合致させ、所定角度をもつて
当接し、かつ平鋼板両面に当接波形面に沿つて溶
接結合し、一体的に形成してなることを特徴とす
る波形プレート板を用いた多角形立坑用土留壁の
隅角部継手部材。[Claim for Utility Model Registration] A polygonal shaft using a corrugated plate plate, in which an earth retaining wall is constructed by using a linear liner plate having a flange at the periphery of the corrugated plate on the inner wall of the shaft having a polygonal cross section. In the corner joint member of the soil retaining wall, one end of the linear liner plate is cut at an angle to form a pair of joint pieces with a corrugated cross section exposed, and both joint pieces are made of a flat steel plate. A corrugated plate plate, characterized in that the inclined corrugated surfaces are aligned with each other through the wafer, abutting at a predetermined angle, and welded to both sides of the flat steel plate along the abutting corrugated surfaces to form an integral body. A corner joint member for a retaining wall for a polygonal shaft using
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987090275U JPH052683Y2 (en) | 1987-06-11 | 1987-06-11 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987090275U JPH052683Y2 (en) | 1987-06-11 | 1987-06-11 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62200735U JPS62200735U (en) | 1987-12-21 |
| JPH052683Y2 true JPH052683Y2 (en) | 1993-01-22 |
Family
ID=30949988
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987090275U Expired - Lifetime JPH052683Y2 (en) | 1987-06-11 | 1987-06-11 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH052683Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6106368B2 (en) * | 2012-04-11 | 2017-03-29 | Ｊｆｅ建材株式会社 | Earth retaining wall block, retaining wall and method for constructing retaining wall |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4840883A (en) * | 1971-09-27 | 1973-06-15 |
-
1987
- 1987-06-11 JP JP1987090275U patent/JPH052683Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62200735U (en) | 1987-12-21 |
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