JPS6313489B2 - - Google Patents
Info
- Publication number
- JPS6313489B2 JPS6313489B2 JP57212531A JP21253182A JPS6313489B2 JP S6313489 B2 JPS6313489 B2 JP S6313489B2 JP 57212531 A JP57212531 A JP 57212531A JP 21253182 A JP21253182 A JP 21253182A JP S6313489 B2 JPS6313489 B2 JP S6313489B2
- Authority
- JP
- Japan
- Prior art keywords
- trench
- joint hardware
- reinforcing bar
- lip groove
- engaging portion
- 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
Links
- 230000003014 reinforcing effect Effects 0.000 claims description 57
- 239000000945 filler Substances 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 8
- 238000010276 construction Methods 0.000 claims description 7
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 230000001681 protective effect Effects 0.000 description 4
- 230000002787 reinforcement Effects 0.000 description 4
- 239000002184 metal Substances 0.000 description 3
- 239000004570 mortar (masonry) Substances 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000013505 freshwater Substances 0.000 description 1
- 239000011440 grout Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/18—Bulkheads or similar walls made solely of concrete in situ
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Bulkheads Adapted To Foundation Construction (AREA)
Description
【発明の詳細な説明】
産業上の利用分野
この発明は、地中連続剛体壁の造成方法および
その鉄筋かご継手金物に関する。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application This invention relates to a method for constructing a continuous underground rigid wall and a reinforcing cage joint hardware therefor.
従来技術
従来より、地中連続壁はいろいろな方法によつ
て造成されてきているが、その多くは、所定深さ
に掘削したトレンチ内に鉄筋かごをその幅方向に
適宜連続しながら建てこみ、続いてコンクリート
を打設することによつて造成する方法であるが、
この種の施工方法よりなる地中連続壁ではとなり
合う鉄筋かごの横筋同志を鉄筋内の応力が滑らか
に伝達し得る様連続的に接合することが困難なた
め鉄筋かごと鉄筋かごとの継手部分が耐力上、最
大の弱点であつた。このため、となり合う鉄筋か
ごの横筋と横筋との継手部分に補強鉄筋を添わせ
たりあるいは横筋と横筋とを鋼材等からなる継手
金物を介して連結したりすることにより継手部分
を補強していたが、この種の補強方法は、いずれ
もその施工が場所的にきわめて面倒であつた。ま
た、従来のこの種の継手金物は鉄筋かごの横鉄筋
同志を鉄筋内応力が連続的に伝達し得る様連結す
ることは元よりトレンチ内に建てこみ後所定位置
に固定することがきわせて困難であつた。PRIOR TECHNOLOGY Hitherto, underground walls have been constructed using various methods, but most of them involve constructing reinforcing steel cages in a trench that has been excavated to a predetermined depth, continuously extending them in the width direction. This method is created by subsequently pouring concrete.
In underground continuous walls constructed using this type of construction method, it is difficult to connect the horizontal bars of adjacent reinforcing bars continuously so that the stress within the reinforcing bars can be transmitted smoothly, so it is difficult to connect the reinforcing bars to the joints between the reinforcing bars. was the biggest weakness in terms of durability. For this reason, the joints are reinforced by attaching reinforcing reinforcing bars to the joints between the horizontal bars of adjacent reinforcing bar cages, or by connecting the horizontal bars with joint hardware made of steel, etc. However, with all of these types of reinforcement methods, the construction is extremely troublesome due to the location. In addition, with conventional joint hardware of this kind, it is not only difficult to connect the horizontal reinforcing bars of a reinforcing bar cage so that stress within the reinforcing bars can be continuously transmitted, but it is also extremely difficult to fix them in a predetermined position after being installed in a trench. It was hot.
発明の目的
この発明は、前記従来の問題点を解消するため
に提案されたもので、地中連続壁の造成に際し、
施工能率を従来施工法より高めることができるこ
とは元より、となり合う鉄筋かごの横筋同志を鉄
筋内応力が円滑に伝達し得る様連結する事がで
き、その結果、地中連続壁全体の剛性を著しく高
めることができる地中連続剛体壁の造成方法およ
びその鉄筋かご継手金物を提供することを目的と
する。Purpose of the invention This invention was proposed in order to solve the above-mentioned conventional problems, and when constructing an underground continuous wall,
In addition to being able to improve construction efficiency compared to conventional construction methods, it is also possible to connect the transverse bars of adjacent reinforcing bar cages so that stress within the reinforcing bars can be smoothly transmitted, and as a result, the rigidity of the entire diaphragm wall can be improved. The purpose of the present invention is to provide a method for constructing a continuous underground rigid wall that can be significantly increased in height, and a reinforcing bar cage joint hardware for the same.
発明の構成
この発明に係る地中連続剛体壁の造成方法は、
所定幅、所定深さに掘削したトレンチ内に継手金
物を建てこみ、この継手金物間に地上にて組立て
た鉄筋かごを建てこみ、かつその横鉄筋両端部を
継手金物に連結し、続いてトレンチ内にコンクリ
ートを打設する工程をトレンチ幅方向に複数回繰
返すことにより地中連続壁を造成するに際し、前
記継手金物はトレンチ内に建てこむと同時にその
側部に設けた膨張チユーブをトレンチ内周壁に圧
接する様、膨張させてトレンチ内に固定し、前記
鉄筋かごは、その横鉄筋両端部に設けた係合部を
左右継手金物のリツプ溝状係合部に係合し、かつ
リツプ溝状係合部をガイドにして左右継手金物間
に建てこみ、続いて前記リツプ溝状係合部内に充
填材を充填する。Structure of the Invention The method for constructing an underground continuous rigid wall according to the present invention includes:
Fitting hardware is built into a trench excavated to a specified width and depth, a reinforcing bar cage assembled on the ground is built between the fitting fittings, and both ends of the horizontal reinforcing bars are connected to the fitting fittings, and then the trench is built. When constructing an underground continuous wall by repeating the process of pouring concrete inside the trench several times in the width direction of the trench, the fitting hardware is installed inside the trench and at the same time connects the expansion tube provided on the side of the trench to the inner peripheral wall of the trench. The reinforcing bar cage is inflated and fixed in the trench so as to be in pressure contact with the horizontal reinforcing bar, and the reinforcing bar cage has engaging parts provided at both ends of the horizontal reinforcing bars that engage with the lip groove-like engaging parts of the left and right joint hardware, and It is placed between the left and right joint hardware using the engaging portion as a guide, and then the lip groove-like engaging portion is filled with a filler.
また、この発明に係る鉄筋かご継手金物は、ト
レンチの長手方向に面する側面部には鉄筋かごの
横鉄筋両端部の係合部を係合させるリツプ溝状係
合部を対応させて設け、かつトレンチの幅方向に
面する側面部には、充填材を充填することにより
膨張し得る膨張部を設けてなる。 In addition, the reinforcing bar cage joint hardware according to the present invention is provided with lip groove-like engaging portions that engage the engaging portions at both ends of the horizontal reinforcing bars of the reinforcing bar cage, in correspondence with the side surface portion facing the longitudinal direction of the trench; In addition, an expansion part that can be expanded by being filled with a filler is provided on the side surface facing in the width direction of the trench.
実施例
以下、この発明を図示する一実施例によつて説
明すると、この発明に係る鉄筋かごの継手金物１
の両端部には、トレンチＡの長手方向に開口する
リツプ溝状係合部２，２とトレンチＡの幅方向に
膨張し得る膨張部３，３がそれぞれ、対応し、か
つトレンチＡの上下方向に連続して設けられてい
る。Embodiment The present invention will be described below with reference to an illustrative embodiment. Joint metal fittings for reinforcing bar cages according to the present invention 1
Lip groove-like engaging parts 2, 2 that open in the longitudinal direction of the trench A and expansion parts 3, 3 that can expand in the width direction of the trench A correspond to both ends of the trench A, respectively, and extend in the vertical direction of the trench A. are provided consecutively.
リツプ溝状係合部２，２の開口端にはエアや水
等を封入することにより膨張し、リツプ溝状係合
部２，２の開口部を塞ぐ遮蔽チユーブ４，４がリ
ツプ溝状係合部２，２の上下方向に連続して取付
けられている。遮蔽チユーブ４，４の外側には防
護カバー５，５が取付けられ遮蔽チユーブ４，４
は防護カバー５，５によつて保護されている。 The lip groove-shaped engaging parts 2, 2 have shielding tubes 4, 4 that expand by filling air or water at the open ends thereof and close the openings of the lip groove-shaped engaging parts 2, 2. It is attached continuously in the vertical direction of the joining parts 2, 2. Protective covers 5, 5 are attached to the outside of the shielding tubes 4, 4.
are protected by protective covers 5, 5.
膨張部３，３は、継手金物１の両端部に羽根板
６，６を取付け、この左右羽根板６，６の先端部
間にゴムや合成樹脂等からなる伸縮自在なシート
７，７を張着することにより継手金物１の上下方
向に連続して構成され、トレンチＡ内で継手金物
１を固定するには、膨張部３，３内にモルタルや
コンクリート等の充填材８，８を充填し、トレン
チＡ内の内壁面を圧接する様膨張させることによ
り固定する。また、継手金物１の両端面にはその
上下方向に連続する断面略弧状の補強部材９，９
が取付けられている。そして補強部材９，９内に
は継手金物１の設置直後、コンクリートやモルタ
ル等の充填材８，８を充填することにより、継手
金物１全体の強度を高める。なお、リツプ溝状係
合部２、膨張部３および補強部材９は、継手金物
１の片側にのみ設ける場合もある（第３図参照）。
次に、この発明に係る地中連続壁の造成方法を順
を追つて説明する。 The expansion parts 3, 3 are constructed by attaching blade plates 6, 6 to both ends of the joint hardware 1, and stretching elastic sheets 7, 7 made of rubber, synthetic resin, etc. between the tips of the left and right blade plates 6, 6. In order to fix the joint hardware 1 in the trench A, filler material 8, 8 such as mortar or concrete is filled in the expansion parts 3, 3. , is fixed by expanding so as to press the inner wall surface of trench A into contact with each other. Further, on both end surfaces of the joint hardware 1, reinforcing members 9, 9 having a substantially arc-shaped cross section that are continuous in the vertical direction are provided.
is installed. Immediately after the installation of the joint hardware 1, the reinforcing members 9, 9 are filled with fillers 8, 8 such as concrete or mortar to increase the strength of the joint hardware 1 as a whole. Note that the lip groove-like engaging portion 2, the expansion portion 3, and the reinforcing member 9 may be provided only on one side of the joint hardware 1 (see FIG. 3).
Next, a method for constructing an underground continuous wall according to the present invention will be explained step by step.
所定幅、所定深さにトレンチＡを掘削する。 A trench A is excavated to a predetermined width and depth.
前記トレンチＡの両端部に継手金物１，１を
鉛直に建てこむと同時に、前記継手金物１，１
の位置決めをする。 At the same time, the fitting fittings 1, 1 are installed vertically at both ends of the trench A.
position.
継手金物１，１の膨張部３，３内にモルタル
やコンクリート等の充填材８を圧入充填し、膨
張部３，３をトレンチＡの内壁面に圧接する
様、膨張させることにより継手金物１，１をト
レンチＡ内の所定位置に固定する。 A filler material 8 such as mortar or concrete is press-fitted into the expansion parts 3, 3 of the joint hardware 1, 1, and is expanded so that the expansion parts 3, 3 are pressed against the inner wall surface of the trench A. 1 is fixed at a predetermined position in trench A.
この場合、建てこみ直後の左右継手金物１，
１間に幅止ガイド部材１０を建てこむと同時に
幅止ガイド部材１０をこれに取付けた鉄筋かご
１１，１１で固定することにより左右継手金物
１，１の間隔保持、位置決め並びに仮固定を
し、続いて膨張部３，３内に充填材８を圧入充
填し、継手金物１，１を本固定する（第７図参
照）。そして、充填材８が所要強度に達したら
ジヤツキ１９，１９を緩め幅止ガイド部材１０
を引き上げる。また、必要に応じ継手金物１，
１の脚部にコンクリートを充填して継手金物
１，１の根固めをする。 In this case, right and left joint hardware 1 immediately after installation,
1, and at the same time fixing the width stop guide member 10 with reinforcing bars 11, 11 attached thereto, the distance between the left and right joint hardware 1, 1 is maintained, positioned, and temporarily fixed, Subsequently, the filler 8 is press-fitted into the expansion parts 3, 3, and the joint fittings 1, 1 are permanently fixed (see FIG. 7). Then, when the filler 8 reaches the required strength, loosen the jacks 19, 19 and stop the width stop guide member 10.
pull up. In addition, if necessary, fitting hardware 1,
Fill the legs of 1 with concrete and harden the joints 1 and 1.
左右継手金物１，１間に地上で組立てた鉄筋
かご１１をその横鉄筋１２両端部に設けた係合
部１３，１３を前記継手金物１，１のリツプ溝
状係合部２，２にその上端部より係合し、リツ
プ溝状係合部２，２をガイドにして建てこむ。 The reinforcing bar cage 11 assembled on the ground between the left and right joint hardware 1, 1 is fitted with the engaging parts 13, 13 provided at both ends of the horizontal reinforcing bars 12 to the lip groove-like engaging parts 2, 2 of the joint hardware 1, 1. It is engaged from the upper end and built in using the lip groove-like engaging parts 2, 2 as guides.
鉄筋かご１１の建てこみが完了したら防護カ
バー５，５内の遮蔽チユーブ４，４内に充填材
８を圧入・充填することにより遮蔽チユーブ
４，４を膨張させ、リツプ溝状係合部２，２の
開口端を塞ぐ。 When the reinforcement cage 11 is completely erected, the filler material 8 is press-fitted and filled into the shielding tubes 4, 4 in the protective covers 5, 5 to expand the shielding tubes 4, 4, and the lip groove-like engaging portions 2, 4 are expanded. Close the open end of 2.
リツプ溝状係合部２，２内を清水の高圧ジエ
ツトで洗浄した後、リツプ溝状係合部２，２内
に、高強度膨張グラウト材等の充填材８を充填
する。 After cleaning the inside of the lip groove-like engaging parts 2, 2 with a high-pressure jet of fresh water, a filler 8 such as a high-strength expansion grout material is filled into the lip-groove engaging parts 2, 2.
続いてトレンチＡ内の左右継手金物１，１間
にコンクリート１４を打設する。 Subsequently, concrete 14 is placed between the left and right joint hardware 1, 1 in trench A.
次に、前記トレンチＡに連続させて新なトレ
ンチＢを掘削し、このトレンチＢ内に新な継手
金物１を建てこむと同時に先に建てこんだ継手
金物１と同じ要領で所定位置に固定し、この継
手金物１と前記継手金物１間に新な鉄筋かご１
１を建てこみ、続いてトレンチＢ内の左右継手
金物１，１間にコンクリート１４を打設する。
以下、この工程を順次繰り返す。 Next, a new trench B is excavated in continuation with the trench A, and a new fitting 1 is built into this trench B, and at the same time, it is fixed in place in the same manner as the fitting 1 built earlier. , a new reinforcing bar cage 1 is placed between this joint hardware 1 and the joint hardware 1.
1, and then concrete 14 is poured between the left and right joint hardware 1, 1 in trench B.
Hereafter, this process is repeated one after another.
トレンチＢの掘削に際し、先に建てこまれた継
手金物１のリツプ溝状係合部２内に仮の係合金物
１５を係合するとともに遮蔽チユーブ４，４内に
水やエアーを封入して遮蔽チユーブ４，４を膨張
させリツプ溝状係合部２，２の開口端を一時塞い
でおけばリツプ溝状係合部２内に土砂が流入する
のを防止することができる。 When trench B is excavated, a temporary engagement metal 15 is engaged in the lip groove-like engagement portion 2 of the joint metal fitting 1 built previously, and water or air is sealed in the shielding tubes 4, 4. By expanding the shielding tubes 4, 4 and temporarily closing the open ends of the lip groove-like engaging parts 2, 2, it is possible to prevent earth and sand from flowing into the lip-groove engaging parts 2.
鉄筋かご１１の横鉄筋１２の両端部に設けた係
合部１３，１３は断面略Ｔ字状に形成され、その
両側面部に複数個のアンカー鉄筋１６と、ガイド
ローラ１７，１７が取付けられている。また、係
合部１３，１３には複数個の孔１８が形成されて
いる。 The engaging portions 13, 13 provided at both ends of the horizontal reinforcing bars 12 of the reinforcing bar cage 11 are formed into a substantially T-shaped cross section, and a plurality of anchor reinforcing bars 16 and guide rollers 17, 17 are attached to both side surfaces thereof. There is. Further, a plurality of holes 18 are formed in the engaging portions 13, 13.
ガイドローラ１７，１７は、鉄筋かご１１の建
てこみに際し、係合部１３，１３をリツプ溝状係
合部２，２内をスムーズにスライドさせる役目を
するものである。また、孔１８はリツプ溝状係合
部２内における係合部１３の定着力を高めるため
のものである。 The guide rollers 17, 17 function to smoothly slide the engaging portions 13, 13 within the lip groove-like engaging portions 2, 2 when the reinforcing bar cage 11 is erected. Further, the holes 18 are provided to increase the fixing force of the engaging portion 13 within the lip groove-like engaging portion 2.
この発明は、以上の構成からなるので、以下の
効果を有する。 Since the present invention has the above configuration, it has the following effects.
トレンチ内で、鉄筋かご継手金物の位置決め
および仮止めを幅止めガイド部材を使用してお
こなうことができ、かつ鉄筋かご継手金物の固
定は、膨張部をこの中に充填材を充填して膨張
させることによりおこなうことができるので、
これらの作業を簡単におこなうことができ、し
かもトレンチの形状も単に細長い溝状をしてい
て掘削しやすいので、きわめてスムーズに工事
を進めることができる。 Within the trench, the reinforcing bar cage joint hardware can be positioned and temporarily fixed using a width fixing guide member, and the reinforcing bar cage joint hardware can be fixed by expanding the expansion part by filling it with filler material. This can be done by
These operations can be carried out easily, and the trenches are simply elongated and easy to excavate, so construction can proceed extremely smoothly.
また、継手部は鉄骨コンクリート構造によつ
て構成され、かつ鉄筋かご継手金物と鉄筋かご
の横鉄筋端部は断面略リツプ溝状をした係合部
とこれに係合し得る係合部とを係合させるとと
もにリツプ溝状係合部の中に充填材を充填する
ことにより連結され、さらにリツプ溝状係合部
の外側に補強部材を取付け、かつ、この補強部
材の内側にコンクリートを充填することにより
鉄筋かご継手金物の剛性を著しく高めているの
で、継手部が変形したりする恐れは全くなく、
連結強度もきわめて高いものである。 In addition, the joint part is constructed of a steel-framed concrete structure, and the reinforcing bar cage joint hardware and the end of the horizontal reinforcing bar of the reinforcing bar cage have an engaging part having a roughly lip groove shape in cross section and an engaging part that can be engaged with this. They are connected by engaging and filling the lip groove-like engaging part with a filler, and furthermore, a reinforcing member is attached to the outside of the lip-groove engaging part, and concrete is filled inside this reinforcing member. As a result, the rigidity of the reinforced cage joint hardware has been significantly increased, so there is no risk of the joint becoming deformed.
The connection strength is also extremely high.
さらに、リツプ溝状係合部の開口端部には当
該開口端部を遮閉する目的で遮閉チユーブが取
付けてあるので、継手部の止水性もきわめて高
い。 Furthermore, since a blocking tube is attached to the open end of the lip groove-like engagement portion for the purpose of blocking the open end, the water-tightness of the joint portion is also extremely high.
第１図ａ，ｂ，ｃ，ｄ，ｅ，ｆ，ｇは地中連続
剛体壁の造成方法を示す順序図、第２図、第３図
は鉄筋かご継手金物の断面図、第４図、第５図は
鉄筋かごの平面図、正面図、第６図は鉄筋かごの
横鉄筋両端部に設けられた係合部の斜視図、第７
図は鉄筋かご継手金物の一部拡大断面図、第８図
はトレンチ内に設置した状態を示す鉄筋継手金物
の断面図である。
１……鉄筋かご継手金物、２……リツプ溝状係
合部、３……膨張部、４……遮蔽チユーブ、５…
…防護カバー、６……羽根板、７……シート、８
……充填材、９……補強部材、１０……幅止ガイ
ド部材、１１……鉄筋かご、１２……横鉄筋、１
３……係合部、１４……コンクリート、１５……
仮の係合金物、１６……アンカー鉄筋、１７……
ガイドローラ、１８……孔、１９……ジヤツキ。
Figure 1 a, b, c, d, e, f, g is a sequence diagram showing the construction method of underground continuous rigid walls, Figures 2 and 3 are cross-sectional views of reinforcing cage joint hardware, Figure 4, Figure 5 is a plan view and front view of the reinforcing bar cage, Figure 6 is a perspective view of the engaging parts provided at both ends of the horizontal reinforcing bars of the reinforcing bar cage, and Figure 7 is a
The figure is a partially enlarged sectional view of the reinforcing bar cage joint hardware, and FIG. 8 is a sectional view of the reinforcing bar joint hardware installed in a trench. DESCRIPTION OF SYMBOLS 1...Reinforced cage joint hardware, 2...Rip groove-like engagement part, 3...Expansion part, 4...Shielding tube, 5...
...Protective cover, 6 ... Wing plate, 7 ... Sheet, 8
... Filler material, 9 ... Reinforcement member, 10 ... Stop guide member, 11 ... Reinforcement cage, 12 ... Horizontal reinforcing bar, 1
3... Engaging portion, 14... Concrete, 15...
Temporary engagement alloy, 16... Anchor reinforcing bar, 17...
Guide roller, 18... hole, 19... jack.
Claims (1)
トレンチ内に継手金物を建てこみ、この継手金物
間に鉄筋かごを建てこむとともに、その横鉄筋両
端部を前記継手金物に連結し、続いて前記トレン
チ内にコンクリートを打設する工程をトレンチ幅
方向に順次繰返して地中連続壁を造成するに際
し、前記継手金物をトレンチ内両端部に建てこむ
と同時に当該継手金物間に幅止ガイド部材を建て
こんで継手金物を所定位置に仮固定し、続いて、
その側部に設けた膨張部を当該膨張部内に充填材
を充填することによりトレンチ周壁に圧接する様
膨張させてトレンチ内に固定し、続いて、前記鉄
筋かごをその横鉄筋両端部に設けた係合部を左右
継手金物のリツプ溝状係合部に係合するととも
に、当該リツプ溝状係合部をガイドにして左右継
手金物間に建てこみ、続いて前記リツプ溝状係合
部内に充填材を充填することを特徴とする地中連
続剛体壁造成方法。 ２ トレンチの長手方向に面する両側面部に鉄筋
かごの横鉄筋両端部に設けた係合部を係合させる
リツプ溝状係合部を設けるとともに、当該リツプ
溝状部の開口端部に当該開口端部を遮閉する遮蔽
チユーブを設け、かつトレンチの幅方向に面する
側面部には充填材を充填することにより膨張し得
る膨張部を設けてなることを特徴とする鉄筋かご
継手金物。[Scope of Claims] 1. A trench of a predetermined width and a predetermined depth is excavated, a joint hardware is built into the trench, a reinforcing bar cage is built between the joint hardware, and both ends of the horizontal reinforcing bars are connected to the joint hardware. When constructing an underground continuous wall by repeating the process of connecting to the trench and then pouring concrete in the trench in the width direction of the trench, the joint hardware is installed at both ends of the trench, and at the same time the joint hardware is installed at both ends of the trench. Install the stop guide member and temporarily fix the joint hardware in place, then
The expansion part provided on the side of the expansion part is filled with a filler material so that the expansion part is expanded so as to come into pressure contact with the peripheral wall of the trench, and is fixed in the trench, and then the reinforcing bar cage is installed at both ends of the horizontal reinforcing bar. The engaging portion is engaged with the lip groove-like engaging portion of the left and right joint hardware, and the lip groove-like engaging portion is used as a guide to build between the left and right joint hardware, and then the lip groove-like engaging portion is filled. A continuous underground rigid wall construction method characterized by filling with material. 2. A lip groove-like engaging portion is provided on both side surfaces facing in the longitudinal direction of the trench to engage the engaging portions provided at both ends of the horizontal reinforcing bars of the reinforcing bar cage, and the opening end of the lip groove-like portion is provided with the engaging portion. 1. A reinforcing bar cage joint hardware, characterized in that a shielding tube is provided to close off an end portion of the trench, and an expansion portion that can be expanded by being filled with a filler is provided on a side surface portion facing in the width direction of the trench.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21253182A JPS59102014A (en) | 1982-12-03 | 1982-12-03 | Formation of underground continuous rigid wall and reinforcing bar cage coupling metal therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21253182A JPS59102014A (en) | 1982-12-03 | 1982-12-03 | Formation of underground continuous rigid wall and reinforcing bar cage coupling metal therefor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59102014A JPS59102014A (en) | 1984-06-12 |
| JPS6313489B2 true JPS6313489B2 (en) | 1988-03-25 |
Family
ID=16624212
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21253182A Granted JPS59102014A (en) | 1982-12-03 | 1982-12-03 | Formation of underground continuous rigid wall and reinforcing bar cage coupling metal therefor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59102014A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS525168A (en) * | 1975-06-30 | 1977-01-14 | Hitachi Zosen Corp | Hydrauric capsules conueying system |
| JPS57100216A (en) * | 1980-12-10 | 1982-06-22 | Taisei Corp | Connection of continuous underground walls and coupling structure therefor |
-
1982
- 1982-12-03 JP JP21253182A patent/JPS59102014A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS525168A (en) * | 1975-06-30 | 1977-01-14 | Hitachi Zosen Corp | Hydrauric capsules conueying system |
| JPS57100216A (en) * | 1980-12-10 | 1982-06-22 | Taisei Corp | Connection of continuous underground walls and coupling structure therefor |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59102014A (en) | 1984-06-12 |
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