JPS6146606B2 - - Google Patents
Info
- Publication number
- JPS6146606B2 JPS6146606B2 JP54142782A JP14278279A JPS6146606B2 JP S6146606 B2 JPS6146606 B2 JP S6146606B2 JP 54142782 A JP54142782 A JP 54142782A JP 14278279 A JP14278279 A JP 14278279A JP S6146606 B2 JPS6146606 B2 JP S6146606B2
- Authority
- JP
- Japan
- Prior art keywords
- joint
- plate
- slot
- partition plate
- concrete
- 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
- 238000005192 partition Methods 0.000 claims description 38
- 230000003014 reinforcing effect Effects 0.000 claims description 36
- 239000004567 concrete Substances 0.000 claims description 31
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 238000010276 construction Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 239000011150 reinforced concrete Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Bulkheads Adapted To Foundation Construction (AREA)
Description
【発明の詳細な説明】
本発明は地中連続壁の継手の構造、特に、施工
上ロツキングボツクスが用いられる地中連続壁の
継手の構造に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to the structure of a joint for a diaphragm wall, and particularly to the structure of a joint for a diaphragm wall in which a locking box is used during construction.
一般に、地中連続壁は、掘削された溝孔内に鉄
筋組立体を配置し、次いで溝孔内にコンクリート
を打設して鉄筋コンクリート造の地中壁を形成
し、さらに、該地中壁の延長方向にコンクリート
を打ち継ぐことにより構築されている。このよう
に、コンクリートの打継ぎを経て構築される地中
連続壁は、その一体性および連続性のために地中
壁相互の接合強度が大きいことおよび十分な止水
性を備えることが要求される。 In general, an underground continuous wall is constructed by placing a reinforcing bar assembly in an excavated trench, then pouring concrete into the trench to form a reinforced concrete underground wall, and then It is constructed by pouring concrete in the direction of extension. In this way, underground walls constructed through concrete pouring are required to have high bonding strength between underground walls and sufficient water-tightness for their integrity and continuity. .
従来、予め一側部に継手が取り付けられた鉄筋
組立体を後にコンクリートが打ち継がれる側の溝
孔側部すなわち地中壁相互の接合部に前記継手が
位置するように溝孔内に建込み、前記継手を介し
て地中壁を相互に結合してしている。この従来の
地中連続壁の構築に用いられる前記継手の一つと
して、前記溝孔を横切つて配置される仕切板と、
該仕切板に交差して取り付けられた鉄筋から成る
多数のジヨイント部材とを備える継手がある。 Conventionally, a reinforcing bar assembly with a joint attached to one side in advance is built in the trench so that the joint is located on the side of the trench where concrete will be poured later, that is, at the joint between the underground walls. , the underground walls are interconnected through the joint. One of the joints used in the construction of this conventional diaphragm wall is a partition plate disposed across the slot;
There is a joint that includes a plurality of joint members made of reinforcing bars attached to the partition plate in a crossing manner.
この継手が用いられる従来の地中連続壁は、掘
削された溝孔内に前記鉄筋組立体を建込んだ後
に、前記ジヨイント部材のコンクリートが打ち継
がれる側に位置する部分を取り巻いてロツキング
ボツクスを挿入し、該ロツキングボツクスおよび
前記継手の仕切板によつて前記溝孔側部を除く溝
孔内に打設されるコンクリートが溝孔側部に流入
するのを阻止している。 In the conventional underground continuous wall in which this joint is used, after the reinforcing bar assembly is erected in the excavated trench, a locking box is installed around the part of the joint member on the side where the concrete is to be poured. is inserted, and the locking box and the partition plate of the joint prevent concrete poured into the slot except for the slot side from flowing into the slot side.
前記ジヨイント部材は溝孔の深さ方向へ間隔を
おいて配置されているが、それらは必ずしも同一
垂直面内に整列されていないことから、ロツキン
グボツクスの溝孔内への円滑な挿入の妨げとな
り、ロツキングボツクスを上下させながらジヨイ
ント部材との引掛りを外す操作が必要であつた
り、ときにはジヨイント部材を破損させたり、変
形させる等の問題があつた。 Although the joint members are spaced apart in the depth direction of the slot, they are not necessarily aligned in the same vertical plane, which prevents smooth insertion of the locking box into the slot. Therefore, it is necessary to remove the locking box from the joint member by moving it up and down, and sometimes the joint member may be damaged or deformed.
したがつて、本発明の目的は、地中連続壁の構
築において溝孔内へのロツキングボツクスの挿入
を確実かつ円滑にするとともに、連続壁相互の接
合部における強度を大きくしかつ十分な止水性を
与える継手を提供することにある。 SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to ensure and smooth insertion of a locking box into a trench in the construction of a continuous underground wall, and to increase the strength and provide sufficient locking at the joints between continuous walls. The purpose is to provide a joint that provides water resistance.
本発明は、一側部に継手を有する鉄筋組立体
を、掘削された溝孔内に配置しかつ該溝孔の前記
継手側の側部にロツキングボツクスを配置し、次
いで前記継手側の側部を除いて前記溝孔内にコン
クリートを打設して地中壁を構築し、さらに前記
ロツキングボツクスを撤去して前記地中壁の延長
方向にコンクリートを打ち継いで成る地中連続壁
の継手であつて、前記溝孔内に該溝孔を横切つて
配置される仕切板と、該仕切板のほぼ中央部に取
り付けられ、前記溝孔の深さ方向へ伸びかつ前記
仕切板と互いに直交するジヨイントプレートであ
つて前記仕切板の両側において側部に前記溝孔の
深さ方向へ伸びるのこ歯状の切欠きを有するジヨ
イントプレートと、前記仕切板の前記鉄筋組立体
が位置する一方の側において前記溝孔の深さ方向
に間隔をおいて配置されかつ端部で前記ジヨイン
トプレートに固定された複数のアンカーと、前記
仕切板の前記コンクリートが打継がれる他方の側
において前記ジヨイントプレートの両側面に垂直
にかつ前記切欠きを横切つて取り付けられた複数
の鉄筋とを備えることを特徴とする。 The present invention involves placing a reinforcing bar assembly with a joint on one side in a drilled slot, placing a locking box on the joint side of the slot, and then placing a locking box on the joint side of the slot. An underground continuous wall is constructed by pouring concrete into the trench except for the section, constructing an underground wall, removing the locking box, and pouring concrete in the extending direction of the underground wall. The joint includes a partition plate disposed within the slot and across the slot, and a joint attached to a substantially central portion of the partition plate, extending in the depth direction of the slot and mutually connecting with the partition plate. a joint plate that is perpendicular to each other and has a serrated notch extending in the depth direction of the slot on the sides on both sides of the partition plate; a plurality of anchors spaced apart in the depth direction of the slot on one side thereof and fixed to the joint plate at their ends; and on the other side of the partition plate to which the concrete is to be poured. A plurality of reinforcing bars are installed perpendicularly to both sides of the joint plate and across the notch.
本発明が特徴とするところは、図示の実施例に
ついての以下の説明により、さらに明らかとなろ
う。 The features of the invention will become clearer from the following description of the illustrated embodiments.
本発明に係る地中連続壁の継手10は、第1図
に示すように、予め複数の横鉄筋12および縦鉄
筋14とを組み合わせて成る鉄筋組立体16の一
側部に取り付けられて成る。 As shown in FIG. 1, the diaphragm wall joint 10 according to the present invention is attached in advance to one side of a reinforcing bar assembly 16 formed by combining a plurality of horizontal reinforcing bars 12 and vertical reinforcing bars 14.
継手10は、鉄筋組立体16の厚さ方向におけ
る両端部近傍に設けられた一対のフランジ18を
介して鉄筋組立体16の横鉄筋12に溶接された
仕切板20と、該仕切板のほぼ中央部に取り付け
られたジヨイントプレート22とを備える。 The joint 10 includes a partition plate 20 welded to the transverse reinforcing bars 12 of the reinforcing bar assembly 16 via a pair of flanges 18 provided near both ends of the reinforcing bar assembly 16 in the thickness direction, and a partition plate 20 that and a joint plate 22 attached to the section.
ジヨイントプレート22は、鉄筋組立体16の
高さ方向すなわち該鉄筋組立体が挿入される後記
溝孔30の深さ方向へ伸び、仕切板20と互いに
直交している。ジヨイントプレート22は、さら
に、仕切板20の両側において、その側部に前記
溝孔30の深さ方向へ向けて伸びるのこ歯状の切
欠き22cを有する。 The joint plate 22 extends in the height direction of the reinforcing bar assembly 16, that is, in the depth direction of the slot 30 to be described later into which the reinforcing bar assembly is inserted, and is perpendicular to the partition plate 20. The joint plate 22 further has serrated notches 22c extending in the depth direction of the slot 30 on both sides of the partition plate 20.
ジヨイントプレート22は、仕切板20の中央
部に設けられた貫通孔(図示せず)を経て伸びか
つ仕切板20に溶接された一枚の板状部材で構成
することができる。ジヨイントプレート22を一
枚の板状部材で構成する場合には、また、該板状
部材に一枚の板体から成る仕切板20のための貫
通孔を設け、該貫通孔を経る仕切板20に前記板
状部材を溶接して取り付けることができる。さら
に、一対の板体で構成した仕切板20に一枚の板
状部材から成るジヨイントプレート22を溶接す
ることもできる。さらに、ジヨイントプレート2
2を一対の板状部材で構成しかつこれらの板状部
材を一枚の板体から成る仕切板20に溶接するこ
ともできる。 The joint plate 22 can be formed of a single plate-like member that extends through a through hole (not shown) provided in the center of the partition plate 20 and is welded to the partition plate 20. When the joint plate 22 is made of a single plate-like member, a through hole for the partition plate 20 made of a single plate is provided in the plate-like member, and the partition plate passes through the through hole. The plate member can be attached to 20 by welding. Furthermore, a joint plate 22 made of a single plate member can be welded to the partition plate 20 made of a pair of plate bodies. Furthermore, joint plate 2
2 may be constructed of a pair of plate-like members, and these plate-like members may be welded to the partition plate 20 made of a single plate.
第1図および第2図に示すように、ジヨイント
プレート22は、その一方部分22aすなわち仕
切板20の一方側(図上左側)に位置する鉄筋組
立体16の側の部分に、先端が互いに相反する方
向すなわち鉄筋組立体16の前記厚さ方向におけ
る相対する横および縦鉄筋12,14側に折り曲
げられた折り曲げ部23を有する複数のアンカー
24が取り付けられている。ジヨイントプレート
22には、仕切板20の地方側(図上右側)に位
置する他方部分22bの両側面に、垂直にかつ互
いに間隔をおいて、また、切欠き22cを横切つ
て複数の縦鉄筋26が取り付けられている。 As shown in FIGS. 1 and 2, the joint plate 22 has its tips mutually connected to one part 22a, that is, the part on the side of the reinforcing bar assembly 16 located on one side of the partition plate 20 (on the left side in the figure). A plurality of anchors 24 are attached having bent portions 23 bent in opposite directions, that is, on opposite horizontal and vertical reinforcing bars 12 and 14 sides in the thickness direction of the reinforcing bar assembly 16. The joint plate 22 has a plurality of vertical holes on both sides of the other portion 22b located on the local side (right side in the figure) of the partition plate 20, vertically and spaced apart from each other, and also across the notch 22c. Reinforcing bars 26 are attached.
継手10は、第3図に仮想線で示す延長方向に
次のようにして構築される地中連続壁28におけ
る一単位毎の地中壁を相互に結合する作用を担
う。 The joint 10 has the function of interconnecting each unit of the underground wall in the underground continuous wall 28 constructed in the following manner in the extending direction shown by the imaginary line in FIG.
まず、泥水を満たして孔壁の崩壊を防ぎながら
掘削された溝孔30内に、予め鉄筋組立体16に
取り付けられた継手10を鉄筋組立体16ととも
に建込む。継手10は、溝孔30内において、縦
鉄筋26が地中連続壁28の延長される側の溝孔
側部30aに位置するように配置される。さら
に、継手10はその仕切板20が溝孔30を横切
つて配置され、これにより溝孔30をその長さ方
向に区画する。 First, the joint 10, which has been previously attached to the reinforcing bar assembly 16, is erected together with the reinforcing bar assembly 16 in the trench hole 30, which has been excavated while being filled with muddy water to prevent the collapse of the hole wall. The joint 10 is arranged in the trench 30 such that the vertical reinforcing bars 26 are located on the trench side 30a on the side where the underground continuous wall 28 is extended. Further, the joint 10 has its partition plate 20 disposed across the slot 30, thereby defining the slot 30 in its length direction.
次に、第4図に示すように、継手10の縦鉄筋
26の案内下で仕切板20によつて区画された溝
孔側部30a内に複数のロツキングボツクス32
を挿入する。このとき、ジヨイントプレート22
の他方部分22bの両側面に縦鉄筋26を取り付
けていることから、ロツキングボツクス32がジ
ヨイントプレート22に当たることはなく、しか
も、縦鉄筋26が溝孔30の上端から下端へ達し
ているためにロツキングボツクス32の下降中、
これを案内し、円滑な降下を促す。 Next, as shown in FIG. 4, a plurality of locking boxes 32 are placed inside the slot side portion 30a defined by the partition plate 20 under the guidance of the vertical reinforcing bars 26 of the joint 10.
Insert. At this time, the joint plate 22
Since the vertical reinforcing bars 26 are attached to both sides of the other part 22b, the locking box 32 does not hit the joint plate 22, and furthermore, since the vertical reinforcing bars 26 reach from the upper end of the slot 30 to the lower end. During the descent of rocking box 32,
This will guide you and encourage a smooth descent.
ロツキングボツクス32の挿入後、溝孔側部3
0aを除く溝孔30内の泥水を溝孔30外に排除
し、溝孔側部30aを除く溝孔30内にコンクリ
ートを打設する。板状部材から成るジヨイントプ
レートの一方部分22aにはその全面にコンクリ
ートが確実に付着し、また、のこ歯状の切欠き2
2cはコンクリートで埋められる。 After inserting the locking box 32, the slot side 3
The muddy water in the slot 30 except for the slot 0a is removed to the outside of the slot 30, and concrete is placed inside the slot 30 except for the slot side 30a. Concrete is firmly attached to the entire surface of one part 22a of the joint plate made of a plate-like member, and the saw-toothed notch 2
2c will be filled with concrete.
この溝孔30内のコンクリート打設域と溝孔側
部30aとの間は、仕切板20およびロツキング
ボツクス32によつて遮断されていることから、
コンクリートが溝孔側部30a内に流れ込むのを
防止することができる。こうして、まず、一単位
の鉄筋コンクリート造の地中壁34が構築され
る。 Since the concrete placement area in this slot 30 and the slot side 30a are separated by the partition plate 20 and the locking box 32,
Concrete can be prevented from flowing into the slot side 30a. In this way, first, one unit of underground wall 34 made of reinforced concrete is constructed.
その後、第5図に示すように、地中壁34に後
にコンクリートを打ち継いで構築される地中壁の
ための溝孔30′を前記したと同様に泥水を用い
て掘削する。溝孔30′の掘削後、ロツキングボ
ツクス32を引き抜いて溝孔側部30aから撤去
し、該溝孔側部と溝孔30′とを連通させる。 Thereafter, as shown in FIG. 5, a groove hole 30' for an underground wall to be constructed by pouring concrete later into the underground wall 34 is excavated using muddy water in the same manner as described above. After excavating the slot 30', the locking box 32 is pulled out and removed from the slot side 30a, thereby communicating the slot side with the slot 30'.
さらに、本発明に係る継手10が一側部に取り
付けられた鉄筋組立体16を溝孔30′に建込
む。鉄筋組立体16の他側部16aは、第6図に
示すように、先の溝孔側部30aにおいて、すで
に構築された地中壁34から突出するジヨイント
プレート22の他方部分22bおよび縦鉄筋26
を間隔をおいて挟んで配置される。 Furthermore, a reinforcing bar assembly 16 with a joint 10 according to the invention attached to one side is installed in the slot 30'. The other side 16a of the reinforcing bar assembly 16, as shown in FIG. 26
They are placed at intervals.
さらに、第7図に示すように、溝孔側部30a
および溝孔30′内にコンクリートを打ち継いで
次の単位の地中壁34′を構築する。こうして、
両地中壁34,34′は相互に結合される。 Further, as shown in FIG. 7, the slot side portion 30a
Then, concrete is poured into the groove hole 30' to construct the next unit of underground wall 34'. thus,
Both underground walls 34, 34' are connected to each other.
コンクリート中に埋め込まれ、地中壁の厚さ方
向における中央部に位置するジヨイントプレート
22が、前記溝孔の深さ方向したがつて前記地中
壁の高さ方向へ伸びる板状部材で構成されている
ため、地中壁34,34′相互の接合部の止水板
をなす。ジヨイントプレートの他方部分22bも
また、一方部分22aと同様、その全面にコンク
リートが確実に付着し、のこ歯状の切欠き22c
はコンクリートで埋められ、また、切欠き22c
を埋めるコンクリートが縦鉄筋26を取り巻く。 A joint plate 22 embedded in the concrete and located at the center in the thickness direction of the underground wall is constituted by a plate-shaped member extending in the depth direction of the groove hole and therefore in the height direction of the underground wall. Since the underground walls 34 and 34' are connected to each other, they form a water stop plate. Similarly to the one part 22a, the other part 22b of the joint plate has concrete firmly attached to its entire surface, and has a serrated notch 22c.
is filled with concrete, and the notch 22c
The concrete filling the vertical reinforcing bars 26 is surrounded by concrete.
継手10には、そのジヨイントプレートの一方
部分22aにアンカー24が取り付けられ、ま
た、他方部分22bに複数の縦鉄筋26が取り付
けられていることから、地中壁34,34′は、
前記延長方向に関し、十分な接合強度を備える。 Since the joint 10 has an anchor 24 attached to one part 22a of the joint plate and a plurality of vertical reinforcing bars 26 attached to the other part 22b, the underground walls 34, 34'
Sufficient bonding strength is provided in the extension direction.
他の例の継手として第8図に全体を符号10′
で示す。ジヨイントプレート22の他方部分22
bの先端に仕切板20と平行に伸びるフランジ3
6が設けられたこの継手10′によれば、フラン
ジ36による案内下でロツキングボツクス32を
さらに容易に溝孔側部30a内に挿入することが
できる。 Another example of a joint is shown in FIG.
Indicated by The other part 22 of the joint plate 22
A flange 3 extending parallel to the partition plate 20 at the tip of b
6, the locking box 32 can be inserted more easily into the slot side 30a under the guidance of the flange 36.
さらに、仕切板20の溝孔30の厚さ方向にお
ける両端部にシール材(図示せず)を取り付ける
ことにより、溝孔30の前記コンクリート打設域
と溝孔側部30aとの間を液密的に遮断すること
もできる。 Furthermore, by attaching a sealing material (not shown) to both ends of the slot 30 of the partition plate 20 in the thickness direction, the gap between the concrete placement area of the slot 30 and the slot side 30a is made liquid-tight. It can also be blocked.
本発明によれば、施工上ロツキングボツクスを
用いる地中連続壁の構築に際し、継手のジヨイン
トプレートに縦鉄筋を取り付けることにより、ロ
ツキングボツクスをジヨイントプレートに引掛け
ることなしに溝孔内に円滑に挿入することができ
る。また、ジヨイントプレートに取り付けられた
縦鉄筋は、地中壁相互の延長方向における接合強
度を高める。 According to the present invention, when constructing an underground continuous wall using a locking box, by attaching vertical reinforcing bars to the joint plate of the joint, the locking box can be inserted into the trench without being hooked on the joint plate. It can be inserted smoothly into the Additionally, the vertical reinforcing bars attached to the joint plates increase the joint strength of the underground walls in the direction of their mutual extension.
また、本発明によれば、ジヨイントプレートは
仕切板のほぼ中央部にこれと直交して取り付けら
れ、前記溝孔の深さ方向したがつて前記地中壁の
高さ方向へ伸長しているため、地中壁相互の結合
部の止水板をなし、これにより地中連続壁の止水
性を高めることができる。 Further, according to the present invention, the joint plate is installed substantially at the center of the partition plate and perpendicular thereto, and extends in the depth direction of the groove hole and therefore in the height direction of the underground wall. Therefore, it forms a water stop plate at the joint between the underground walls, thereby increasing the water stop performance of the underground continuous wall.
さらに、本発明によれば、ジヨイントプレート
の両側の部分ののこ歯状の切欠きがコンクリート
で満たされ、しかも一方部分の側で複数のアンカ
ーがコンクリート中に埋設されまた他方部分の側
で切欠きを満たすコンクリートにより縦鉄筋が取
り巻かれることから、ジヨイントプレートと前記
コンクリートとの付着強度すなわち前記地中壁と
の結合強度が著しく増大される。このために、地
中壁相互の結合部における止水性を高めるべく適
用された板材の弱点であるコンクリートとの付着
強度の不足が充分に補われ、両地中壁にこれらの
高さ方向へ剪断する地震力のような外力が作用す
る場合にあつても両地中壁の個々の上下動が効果
的に抑止され、これにより、剪断破壊が防止され
る。 Further, according to the present invention, the serrated notches on both sides of the joint plate are filled with concrete, and a plurality of anchors are embedded in the concrete on the side of one part, and the plurality of anchors are embedded in the concrete on the side of the other part. Since the vertical reinforcing bars are surrounded by the concrete filling the notch, the bonding strength between the joint plate and the concrete, that is, the bonding strength with the underground wall is significantly increased. For this reason, the lack of adhesion strength with concrete, which is the weak point of the plate material applied to improve water-stopping properties at the joints between underground walls, is fully compensated for, and the shearing in the height direction of both underground walls is made up for. Even when external forces such as seismic forces act, the individual vertical movements of both underground walls are effectively suppressed, thereby preventing shear failure.
第1図は本発明に係る継手を鉄筋組立体に取り
付けた状態を示す平面図、第2図は継手の仕切板
およびジヨイントプレートの側面図、第3図、第
4図、第5図、第6図、第7図は、本発明に係る
継手を用いて地中連続壁を構築する例を段階的に
示す平面図、第8図は継手においてジヨイントプ
レートの先端にフランジを設けた例を示す平面図
である。
10,10′:継手、16:鉄筋組立体、2
0:仕切板、22:ジヨイントプレート、22
a,22b:ジヨイントプレートの一方部分およ
び他方部分、22c:のこ歯状の切欠き、26:
縦鉄筋、28:地中連続壁、30,30′:溝
孔、30a:溝孔側部、32:ロツキングボツク
ス、34,34′:地中壁、36:フランジ。
FIG. 1 is a plan view showing the joint according to the present invention attached to a reinforcing bar assembly, FIG. 2 is a side view of the partition plate and joint plate of the joint, FIGS. 3, 4, 5, Figures 6 and 7 are plan views showing step by step an example of constructing a diaphragm wall using the joint according to the present invention, and Figure 8 is an example of a joint in which a flange is provided at the tip of the joint plate. FIG. 10, 10': Joint, 16: Rebar assembly, 2
0: Partition plate, 22: Joint plate, 22
a, 22b: one part and the other part of the joint plate, 22c: serrated notch, 26:
Vertical reinforcement, 28: underground continuous wall, 30, 30': trench, 30a: trench side, 32: locking box, 34, 34': underground wall, 36: flange.
Claims (1)
た溝孔内に配置しかつ該溝孔の前記継手側の側部
にロツキングボツクスを配置し、次いで前記継手
側の側部を除いて前記溝孔内にコンクリートを打
設して地中壁を構築し、さらに前記ロツキングボ
ツクスを撤去して前記地中壁の延長方向にコンク
リートを打継いで構築される地中連続壁の継手の
構造であつて、前記溝孔内に該溝孔を横切つて配
置される仕切板と、該仕切板のほぼ中央部に取り
付けられ、前記溝孔の深さ方向へ伸びかつ前記仕
切板と互いに直交するジヨイントプレートであつ
て前記仕切板の両側において側部に前記溝孔の深
さ方向へ伸びるのこ歯状の切欠きを有するジヨイ
ントプレートと、前記仕切板の前記鉄筋組立体が
位置する一方の側において前記溝孔の深さ方向に
間隔をおいて配置されかつ端部で前記ジヨイント
プレートに固定された複数のアンカーと、前記仕
切板の前記コンクリートが打継がれる他方の側に
おいて前記ジヨイントプレートの両側面に垂直に
かつ前記切欠きを横切つて取り付けられた複数の
鉄筋とを備える、地中連続壁の継手構造。 2 前記ジヨイントプレートは、前記仕切板に設
けられた貫通孔を経て伸びかつ前記仕切板に溶接
された一枚の板状部材から成る、特許請求の範囲
第1項に記載の地中連続壁の継手構造。 3 前記ジヨイントプレートは前記仕切板の両側
面に溶接された一対の板状部材から成る、特許請
求の範囲第1項に記載の地中連続壁の継手構造。 4 前記ジヨイントプレートは、前記縦鉄筋が取
り付けられた側の先端部分に前記仕切板に平行に
伸びるフランジを有することを特徴とする、特許
請求の範囲第1項に記載の地中連続壁の継手構
造。[Scope of Claims] 1. A reinforcing bar assembly having a joint on one side is placed in an excavated slot, and a locking box is placed on the side of the slot on the joint side, and then a locking box is placed on the side of the slot on the joint side. An underground wall is constructed by pouring concrete into the trench except for the sides, and then the locking box is removed and concrete is poured in the extending direction of the underground wall. The structure of the joint of a medium continuous wall includes a partition plate disposed within the slot and across the slot, and a partition plate installed approximately in the center of the partition plate and extending in the depth direction of the slot. and a joint plate that is orthogonal to the partition plate and has serrated notches extending in the depth direction of the slot in the side portions on both sides of the partition plate; A plurality of anchors spaced apart in the depth direction of the slot on one side where the reinforcing bar assembly is located and fixed to the joint plate at their ends, and the concrete of the partition plate being cast. A joint structure for a diaphragm wall, comprising: a plurality of reinforcing bars attached perpendicularly to both sides of the joint plate and across the notch on the other side to be joined. 2. The underground continuous wall according to claim 1, wherein the joint plate is a single plate-like member that extends through a through hole provided in the partition plate and is welded to the partition plate. joint structure. 3. The diaphragm wall joint structure according to claim 1, wherein the joint plate is comprised of a pair of plate-like members welded to both sides of the partition plate. 4. The underground continuous wall according to claim 1, wherein the joint plate has a flange extending parallel to the partition plate at the end portion on the side where the vertical reinforcing bars are attached. Joint structure.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14278279A JPS5667016A (en) | 1979-11-06 | 1979-11-06 | Joint structure for underground continuous wall |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14278279A JPS5667016A (en) | 1979-11-06 | 1979-11-06 | Joint structure for underground continuous wall |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5667016A JPS5667016A (en) | 1981-06-05 |
JPS6146606B2 true JPS6146606B2 (en) | 1986-10-15 |
Family
ID=15323464
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14278279A Granted JPS5667016A (en) | 1979-11-06 | 1979-11-06 | Joint structure for underground continuous wall |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5667016A (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59167828U (en) * | 1983-04-23 | 1984-11-10 | 五洋建設株式会社 | Inter-wall connections of continuous underground walls |
JPS6131522A (en) * | 1984-07-23 | 1986-02-14 | Tekken Kensetsu Co Ltd | Joint member for underground continuous wall and manufacture thereof |
JPS61183518A (en) * | 1985-02-07 | 1986-08-16 | Tekken Kensetsu Co Ltd | Joint member for underground continuous wall and manufacture thereof |
JPS61290114A (en) * | 1985-06-15 | 1986-12-20 | Tekken Kensetsu Co Ltd | Coupler for underground continuous wall and its manufacture |
WO1988009849A1 (en) * | 1987-06-12 | 1988-12-15 | Foundation Technology Pty. Ltd. | Reinforcement for continuously-cast concrete walls |
JP7390909B2 (en) * | 2020-01-30 | 2023-12-04 | 清水建設株式会社 | Continuous underground walls and construction methods for continuous underground walls |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS507306A (en) * | 1973-05-22 | 1975-01-25 | ||
JPS5032714A (en) * | 1973-07-25 | 1975-03-29 |
-
1979
- 1979-11-06 JP JP14278279A patent/JPS5667016A/en active Granted
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS507306A (en) * | 1973-05-22 | 1975-01-25 | ||
JPS5032714A (en) * | 1973-07-25 | 1975-03-29 |
Also Published As
Publication number | Publication date |
---|---|
JPS5667016A (en) | 1981-06-05 |
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