JPS606416B2 - Construction method of underground continuous wall - Google Patents

Description

【発明の詳細な説明】 本発明は、地下連続壁の施工法に係り、地中連続壁を地
下室本体壁として用いる場合とか構築物の支持杭機造体
として用いる場合および連続擁護肇等として用いる場合
において、その施工性に優れると共に、構築された地下
連続壁は止水性抜群であって高強度、特に剛性が高く耐
振性に優れたものに可能な施工法に関する。[Detailed Description of the Invention] The present invention relates to a method of constructing an underground continuous wall, and the case where the underground continuous wall is used as the main wall of a basement, as a support pile machine structure of a structure, and as a continuous support arm. The present invention relates to a construction method that allows the constructed underground continuous wall to have excellent construction properties, excellent water-stopping properties, high strength, particularly high rigidity, and excellent vibration resistance.

最近の地下工事にあっては、場所打ち地下連続壁の構築
がとみに高くなってきていることは既知の通りであり、
各種工法が提案されている。It is well known that in recent underground construction projects, the construction of cast-in-place underground continuous walls has become increasingly expensive.
Various construction methods have been proposed.

従来のこの種工法は、構築物の耐振性（耐震性）を向上
し、剛性を高くする意味から、鉄筋鍵、鉄骨材等を現場
で組立て使用しているが、これでは、鉄筋鍵の作成に手
間がかかり、又、鉄筋髄の組立が面題であるばかりか現
場組立の関係上、拡大な作業スペースも必要となり、こ
れらが要因で工期の短縮が図れず、しかも鉄筋鍵吊込み
建込み時に、その変形は不可避で、精度が劣るという致
命的欠陥があった。又、最も重要なことは、地下連続壁
を地下貯蔵倉庫、地下道等の本体構築体として利用する
場合、及び土留め壁と利用する場合を問わず止水性を完
壁にすることにあるが、従釆工法では鉄筋籍を用いる関
係上、配筋制約を受け特に婆手部等の止水が劣っており
、これが延し、ては連続壁の耐久性「耐震性に悪影響を
与え「特にト土庄等による敷断力に対抗できないもので
あった。Conventionally, this type of construction method involves assembling and using reinforcing bar keys, steel frames, etc. on site in order to improve the vibration resistance (earthquake resistance) of the structure and increase its rigidity. It is time-consuming, and not only is it a problem to assemble the reinforcing bars, but also an expanded work space is required due to the on-site assembly.These factors make it difficult to shorten the construction period, and moreover, it is difficult to assemble the reinforcing bars during construction. , its deformation was inevitable, and it had a fatal flaw of poor accuracy. Also, the most important thing is to ensure that the underground continuous wall is completely watertight, regardless of whether it is used as the main structure of an underground storage warehouse, underground passage, etc., or as an earth retaining wall. Since the continuous wall construction method uses reinforcing bars, it is subject to reinforcement restrictions and has poor water-stopping properties, especially in the groin section. It was impossible to resist the breaking force exerted by Tonosho and others.

特に「地下連続壁を建造物の地下室本体壁として用いる
場合「鉛直性の精度がとみに要求されるし、止水効果の
完堅さが要求されるのである。In particular, when using an underground continuous wall as the main wall of a building's basement, extremely accurate verticality is required, and perfect water-stopping performance is required.

本発明は「上記のような背景に鑑み案出されたものであ
り、その第１の目的は、止水性が完全であり、しかも高
い鉛直精度を保証した施工性に優れた地下連続壁の機案
乃至施工法を提供することである。又、本発明では鋼製
パネル構成主村の断面性能とコンクリート等の経時硬化
流動性充填物の剛性とを兼ね備えた耐震性に殴れ、対土
庄抵抗性に優れた高強度の地下連続壁を短期かつ工費節
減の下で施工可能な方法の提供を目的とする。The present invention was devised in view of the above-mentioned background, and its first purpose is to provide a mechanism for an underground continuous wall that is completely waterproof, guarantees high vertical accuracy, and is easy to construct. It is an object of the present invention to provide a plan or construction method.Furthermore, the present invention provides earthquake resistance that combines the cross-sectional performance of the steel panel structure and the rigidity of a fluid filler that hardens over time, such as concrete, and has excellent earthquake resistance. The purpose of this study is to provide a method for constructing a high-strength underground continuous wall with excellent performance in a short period of time and at reduced construction costs.

又、本発明では隣接既設建造物との境界線近くに構築乃
至施工することができｔ このようにしても当該建造物
に影響を与えることなく地下連続壁を構築可能な方法を
提供することを目的とする。Furthermore, in the present invention, it is possible to construct or construct an underground continuous wall near the boundary line with an adjacent existing building. purpose.

本発明のその余の目的し利点、特長並びに有用性は以下
詳述する説明からより明らかとされる。第１図乃至第す
図を参照すれば「本発明に用いる鋼製パネルーの基本的
な一例が詳細に図解されており、第竃０図乃至第亀亀図
を参照すれば前記パネルーの縦方向倭手構造の詳細が図
解され、又、第１５図では前記パネル１の横方向嬢手構
造の詳細が図解されている。本発明の施工法をより一層
理解するためまずパネル１の構成、その縦方向鞍手及び
横方向鏡手構造を順次詳述する。Further objects, advantages, features and usefulness of the present invention will become more apparent from the detailed description below. Referring to FIGS. 1 to 2, a basic example of the steel panel used in the present invention is illustrated in detail, and referring to FIGS. The details of the cross-section structure are illustrated, and the details of the transverse cross-section structure of the panel 1 are illustrated in FIG. The structures of the longitudinal saddle hand and the lateral mirror hand will be explained in detail in turn.

第１図乃至第８図において、鋼製パネル川ま第８図に特
に図解するように対のフランジ２，３とゥェブ４を一体
形成した最尺のパネル構成主村５の複数を互いに並設せ
しめかつ所要のつなぎ材６で相互に連結固着することに
より〜所要大きさで内部に空洞部？を有するパネル畳が
構成される。In FIGS. 1 to 8, a plurality of main panels 5, which are the longest panel consisting of integrally formed pairs of flanges 2, 3 and a web 4, are arranged side by side as shown in FIG. 8. By connecting and fixing each other with the necessary connecting material 6, a cavity of the required size is formed inside. A panel tatami is constructed.

主材５の対のフランジ２，３はその中寸法が異るものと
され、また、主材５のウェプ４には円形、楕円形、菱形
「亀甲形等の充填物流入部８が実施例では円形孔構造と
して主材長手方向所定間隔毎に設け、それぞれ独立した
空洞部７を連絡している。勿論、その流入部８は断面性
能の欠損を考慮して開設されるものとし、望しくは等間
隔に開設してある。この主村鼠ま第８図１に示す如く不
等辺日形鋼〜第８図２の如く所謂リップ付Ｔ形鋼又は第
８図３の如くリップ付Ｔ形鋼を複合一体とした合成鍵で
あってもよく、いずれにしてもフランジ２と薄の中寸法
が異るものとされている。The paired flanges 2 and 3 of the main material 5 have different inside dimensions, and the web 4 of the main material 5 has a filler inflow portion 8 in a circular, elliptical, rhomboid, or tortoiseshell shape in the embodiment. A circular hole structure is provided at predetermined intervals in the longitudinal direction of the main material, and these are connected to independent cavities 7.Of course, the inflow portions 8 should be opened in consideration of defects in cross-sectional performance, and preferably They are opened at equal intervals.This main village is made of scalene day shape steel as shown in Fig. 81, so-called lipped T-shaped steel as shown in Fig. 82, or lipped T-shaped steel as shown in Fig. 83. It may be a composite key made of a composite key, and in any case, the middle dimension of the flange 2 and the thin part are different.

この主材５の複数をしてパネル１が作成されるが「 こ
の場合、長フランジ２同士及び短フランジ３同士をそれ
ぞれ同一面となるべく並設せしめ隣接する長フランジ２
の端縁間を第９図１に示す如く樹脂、金属その他の合成
材料からなるシールジョイント材ｇで連結するか又は第
９図２に示す如く溶接シール１０せしめその一面全体が
閉塞された面−の止水面１１と構成され「一方、他面１
２は短フランジ３間に間隙Ｓ３を有する面とされている
。The panel 1 is created by making a plurality of these main materials 5, but in this case, the long flanges 2 and the short flanges 3 are arranged side by side as much as possible on the same surface, and the adjacent long flanges 2
The edges of the edges are connected by a seal joint material g made of resin, metal, or other synthetic material as shown in FIG. 9, or a welded seal 10 is attached as shown in FIG. ``One side, the other side 1
2 is a surface having a gap S3 between the short flanges 3.

主材５の複数、実施例では６本の主材５を並設してその
一面全体が面一の止水面亀 鷲で他面がフランジ間に間
隙１３を有する面１２とされたパネル角は、例えばその
上下両面１１，１２にパネル中方向としてつなぎ材６を
重合し、これを溶接又はボルト等の機械的、化学的結合
手段により要するに固着して、ここに各王村５間にそれ
ぞれ独立した方形空洞部７を有する立方箱形のパネル翼
が作成される。A panel corner in which a plurality of main members 5, six main members 5 in this example are arranged side by side, one side of which is a flush water-stop surface, and the other side is a surface 12 with a gap 13 between flanges. For example, a connecting material 6 is superimposed on the upper and lower surfaces 11 and 12 in the middle direction of the panel, and this is essentially fixed by mechanical or chemical bonding means such as welding or bolts, so that each of the villages 5 is independent from the other. A cubic box-shaped panel wing having a rectangular cavity 7 is created.

このパネル１の寸法は施工状況等により大中小のように
適宜変動するものであるが予じめ工場生産ラインで各種
寸法のものを作成しているものとする。Although the dimensions of this panel 1 may vary depending on construction conditions, such as large, medium, or small, it is assumed that panels of various dimensions are prepared in advance on a factory production line.

また、つなぎ材６は実施例では上下に鉄板を固着したも
のとして例示しているが、主材長手方向所定間隔毎に複
数本重合してもよく、場合によっては、つなぎ材６とし
てバー材を用いることもできる。Further, in the embodiment, the binding material 6 is illustrated as having steel plates fixed to the top and bottom, but a plurality of pieces may be polymerized at predetermined intervals in the longitudinal direction of the main material, and in some cases, a bar material may be used as the binding material 6. It can also be used.

止水面１１側の主材５連結が強固なときは、場合により
、これ側のつなぎ材６を省略することもできる。パネル
軍‘ま第３図、第４図および第５図亀，２に示す如くパ
ネル中両端の外周に横方向接続のための雄酸手竃４と雌
綾手亀５がそれぞれ主材長手方向に一体として設けられ
、この雄雌鞍手１４，亀５としては第１５図１，２，３
，４で示す各種構成の接手構成が採用可能であり、該雄
雌薮手１４，１５は望しくは各実施例で示す如く主材ウ
ヱブ４に溶接「ボルト止め又は、必要に応じて一体成形
しており「勿論「その穣手部がパネル厚さ内にあり、か
つパネル中両外周部にあることを条件として例えば主材
フランジ２，３に固着したものであってもよい。When the connection of the main member 5 on the side of the water stop surface 11 is strong, the connecting member 6 on this side may be omitted depending on the case. As shown in Figures 3, 4, and 5, the panel members have a male cylindrical hook 4 and a female cylindrical hook 5 on the outer periphery of both ends of the panel in the longitudinal direction of the main material, respectively, for lateral connection. The male and female saddle grips 14 and the turtle 5 are provided as one body in FIG.
, 4 can be adopted, and the male and female bushings 14 and 15 are preferably welded or bolted to the main web 4 as shown in each embodiment, or integrally formed as required. ``Of course, it may be fixed to the main flanges 2 and 3, for example, provided that the fins are within the thickness of the panel and on both outer peripheries of the panel.

又、パネル１はその内部、具体的には空洞部７に経時硬
化性の流動充填物が打設され「該パネル亀の断面性能と
充填物の剛性との協働作用で堅牢強固な壁体を機成する
のであるが、前記充填物のパネル全体へ均等かつ迅速な
充満を保証し、かつ、充填物内部に巣が造成されるのを
避けるため主材ゥェブ４に形成した流入部８が大きく寄
与しも これに塞き、充填物のトレミー管を介しての打
設は単一のパネル川こ単一で済むことになる。この場合
、より一層、充填物の流動を図るため「隣り合う流入部
８は第６図、第？図でも明らかな如く所謂千鳥状に配列
することが望しも、。また、パネル１の横中両端におけ
る主材のウェブ、即ち、第５図ｉ，２で示すウェブ４Ａ
には流入部８が形成されていないものとする。なお、こ
のゥェブ４Ａに流入部８を形成したものを用いることが
でき、このときは当該流入部８を千全体にて閉止するこ
とができＬ又「場合によっては、雄・雌後手亀４，１５
自体で前記流入部８を閉止することもできる。In addition, the panel 1 has a fluid filling that hardens over time placed inside it, specifically in the cavity 7, and the cross-sectional properties of the panel and the rigidity of the filling work together to create a solid and strong wall. However, in order to ensure uniform and rapid filling of the filling material throughout the panel and to avoid the formation of nests inside the filling material, an inlet portion 8 formed in the main material web 4 is provided. However, in order to further improve the flow of the filling, it is necessary to place the filling material through the tremie pipe in a single panel. It is desirable that the matching inflow portions 8 are arranged in a so-called zigzag pattern, as is clear from FIGS. Web 4A indicated by 2
It is assumed that the inflow portion 8 is not formed in the. In addition, it is possible to use this web 4A with an inflow part 8 formed therein, and in this case, the inflow part 8 can be closed entirely. 15
It is also possible to close the inflow portion 8 by itself.

又、パネル１の横中両端におけるウヱブ４Ａには流入部
８を両端ともに形成したもの、片側のみに流入部８を形
成したもの及び、両端ともに流入部８を形成していない
ものがあり、この３種類の鋼製パネル１を適宜選択利用
して連続壁が施工される。 ・更
に、パネル１には第５図２で示す如く止水面１１、間隙
１３を有する他面１２の鞍手部近傍には主として充填物
のパネル横方向外方への流動を阻止するフィン１６が主
材長手方向の全長にわたって溶接、ボルト等の固着手段
で立設されている。In addition, there are some weaves 4A at both horizontal and middle ends of the panel 1, in which the inflow part 8 is formed at both ends, in which the inflow part 8 is formed only on one side, and in which the inflow part 8 is not formed at either end. A continuous wall is constructed by appropriately selecting and using three types of steel panels 1.・Furthermore, as shown in FIG. 5, the panel 1 has a water-stop surface 11 and a fin 16 near the saddle portion of the other surface 12 having a gap 13, which mainly prevents the filling from flowing outward in the lateral direction of the panel. It is erected over the entire length of the material by welding, bolts, or other fixing means.

又、このフィン１６はパネル１を後述する鉛直掘削部に
吊込み挿設したとき、該パネル１の鉛直性を保証するの
にも寄与されることが明らかとされる。Furthermore, it is clear that the fins 16 also contribute to ensuring the verticality of the panel 1 when the panel 1 is suspended and inserted into a vertical excavation section to be described later.

従って、充填物の流動阻止機能のみを重視するときは間
隙１３を有する他面１２における一方の接手部近傍にの
み設けることもできる。又、吊込み挿設に際しての鉛直
性と流動阻止の双方を重視するときは実施例の如く両面
にわたって設けるものとする。なお、第１８図１に示す
如くフィンｉ６はナイフプレート形であってもよく「又
、第１８図２で而示す如く先端に受圧片１６Ａを有する
所謂Ｔ形フィンであってもよく、このＴ形フィンのとき
はとくに鉛直性維持の点で有利となる。Therefore, when only the function of preventing the flow of the filler is important, it may be provided only in the vicinity of one of the joints on the other surface 12 having the gap 13. In addition, when both verticality and flow prevention are important when hanging and installing, it should be provided on both sides as in the embodiment. The fin i6 may have a knife plate shape as shown in FIG. 18, or may be a so-called T-shaped fin having a pressure receiving piece 16A at the tip as shown in FIG. Shaped fins are particularly advantageous in maintaining verticality.

なお、パネル１の吊込み挿設（蓬込み）抵抗を少なくし
て円滑な蓮込みを図るには第１８図３の如く下部に先細
状の沓部１６Ｂをフィン１６に形成することが望しし、
。第ｉｏ図乃至第ご亀図を参照すれば、前述したパネル
１の縦方向における接手構成の詳細が図解されている。In addition, in order to reduce the hanging insertion (insertion) resistance of the panel 1 and achieve smooth insertion, it is desirable to form a tapered foot portion 16B on the lower part of the fin 16 as shown in FIG. death,
. Referring to FIGS. io to 7, details of the longitudinal joint configuration of the panel 1 described above are illustrated.

第１０図・第１１図において「 １７が俵手であり「対
のフランジ翼８，１９とウェブ２８とからなる俊手部材
２１の複数本と、方形中空箱形の鞍手部村２２とからな
りも接手部材２２がパネル１の上部中央における空洞部
７にその半分程度が挿鼓されて隣接する主材フランジ２
，３にボルト又は溶接、リベット等で固着してありト実
施例ではボルト結合手段２３の複数を例示している。In FIGS. 10 and 11, "17 is a handle, which is composed of a plurality of handle members 21 each consisting of a pair of flange wings 8, 19 and a web 28, and a saddle part village 22 in the shape of a square hollow box. About half of the joint member 22 is inserted into the hollow part 7 at the center of the upper part of the panel 1, and the adjacent main member flange 2
, 3 by bolts, welding, rivets, etc. In the embodiment, a plurality of bolt connecting means 23 are illustrated.

又、この中央の鞍手部材２２の両脇に所謂Ｈ形嬢手部村
２１がパネル１の空洞部７に半分程度挿競され同じく隣
接の主村フランジ２，３にボルト又は溶接〜リベット等
で固着してあり〜実施例ではボルト結合手段２３の複数
を示している。従って、俵手部村２１，２２のそれぞれ
およびパネル１１こはボルト孔２４の複数が等ピッチで
穿設されている。望しし、実施列ではＨ形接手部材２１
は対のフランジ１８，１９が異寸法とされており、その
短フランジ１９をパネル１の止水面１ １における内面
に重合すると共に、長フランジ１８は間隙１３を有する
他面ｉ２の外面に重合して固着され、従って、接手部村
２１のウェブ１９がパネル１の間隙１３を介して挿鼓さ
れ、ここに、Ｈ形綾手部材２１は主材５を短寸に切断し
たものが利用可能とされている。Also, on both sides of this central saddle member 22, so-called H-shaped handle members 21 are inserted about half into the hollow portion 7 of the panel 1, and are also attached to the adjacent main flanges 2 and 3 by bolts, welding, rivets, etc. A plurality of bolt connection means 23 are shown in the embodiment. Therefore, a plurality of bolt holes 24 are drilled at equal pitches in each of the barrels 21 and 22 and in the panel 11. In the preferred embodiment, the H-shaped joint member 21
The pair of flanges 18 and 19 have different dimensions, and the short flange 19 overlaps the inner surface of the water stop surface 11 of the panel 1, and the long flange 18 overlaps the outer surface of the other surface i2 having the gap 13. Therefore, the web 19 of the joint part village 21 is inserted through the gap 13 of the panel 1, and the H-shaped twill member 21 can be obtained by cutting the main material 5 into short lengths. has been done.

勿論、Ｈ形嬢手部材２１は不等辺日形材であっても又、
主材５と異寸法にすることは可能であるし、又、第１２
図２で示す如く等辺日形村を採用することもでき、この
ときは当該援手部村２１はパネル内繭に挿嫁されるもの
である。Of course, even if the H-shaped handle member 21 is a scalene-shaped member,
It is possible to have different dimensions from the main material 5, and the 12th
As shown in FIG. 2, it is also possible to adopt an equilateral diagonal village, in which case the supporting arm village 21 is inserted into the cocoon within the panel.

なお、このことは接手部材２１としてチャンネル鋼箱形
材を利用可能であることも意味する。第亀８図および第
竃亀図に示す如く接手部ｇ濁を上部に備えたパネル軍に
、昇りの作成されたパネル（第１Ｑ軍 亀１図で鎖線で
示す）が鉄合されて前述同様に接合一体化されるのであ
る。Note that this also means that a channel steel box-shaped member can be used as the joint member 21. As shown in Figure 8 and Figure 8, a panel with a raised joint (shown by a chain line in Figure 1 of the 1st Q Army) is iron-coupled to the panel group with a joint part on the top, as described above. They are joined and integrated into one.

而しても第１３図、第軍亀図でも明らかな如く、各鞍手
部材２貫亨 ２乳こは充填物流入部舞ふ ２６が形成し
てあり「 これにより鞍手部１夜においても充填物の封
入充満を保証している。However, as is clear from Fig. 13 and the No. 1 gun figure, each saddle member has two penetrations and a filler inlet part 26. Guaranteed filling.

なお、打設にともなって充填物が相対的に上昇すること
から〜後手部亀？に流入部２臥 蟹６を形成しない場合
もある。次に第電６図以下を参照して地下運糠壁の施工
脇序を詳述するとト地下連続壁構成部分２７１こ第畳登
図に示す如く鉛直孔塾蜜を掘削するが〜 これに先立っ
て予め計算により算定された壁の厚さに基きガイドウオ
ールを設置し「 この設置されたガドゥオールに沿って
鉛直性が離籍できる掘削機にて予め計算により算定の深
さまで掘削する。In addition, since the filling material rises relatively as it is poured, it seems that the back part of the filling material is rising. In some cases, the crab 6 is not formed in the inflow section 2. Next, referring to Figure 6 onwards, we will explain in detail the construction procedure for the underground continuous wall. A guide wall is installed based on the thickness of the wall calculated in advance, and excavation is carried out along this installed guide wall to the depth calculated in advance using an excavator that can maintain verticality.

この掘削は公知の安定液工法等を採用して要するに掘削
面２９の崩壊を防止しつつ逐次掘削するものであり、掘
削機としては鉛直性が総綾できるクラムシェル型の掘削
機を採用することが望しも、。勿論、掘削手段は掘削面
２＠の崩壊を防止もかつ鉛直性を維持できる限り、その
他の掘削手段（衝撃式ト回転式、ジェット式等）であっ
てもよい。而しても掘削底面のスラィムを除去（筆しく
まま除去するが、前述したパネル亀を用いることから止
水性良好となりも従ってスラィム除去は省略できる場合
もある）しも予じめ工場にて作成された前述の鋼製のパ
ネル１を鉛直孔２則こ吊込み挿設する。この場合〜パネ
ル軍‘まその止水面亀亀を内面として挿設するのであり
、このとき〜第−鰭図で示す如くフィン富富がパネル亀
の鉛直性を維持するのに寄与されるし、又「沓部亀６８
が蓬込み抵抗を４・にするのに寄与され、内部に空洞部
７を有するパネル亀として吊込み挿設することから吊込
み時の変形なく精度よく鉛直孔２飢こ挿設可能となる。
而して、各パネル１の横方向の平列接続は前述した雌・
雌姿手首４，１５により実施され「又、パネル１の縦列
接続は前述した接手部１７にて実施されるものである。This excavation employs a well-known stabilized liquid construction method, etc., and in short, excavates sequentially while preventing the excavation surface 29 from collapsing.As the excavator, a clamshell type excavator that can maintain verticality is adopted. Although I wish. Of course, the excavating means may be any other excavating means (impact type, rotary type, jet type, etc.) as long as it can prevent collapse of the excavated surface 2@ and maintain verticality. However, the slime on the bottom of the excavation is removed (it is removed with brushstrokes, but using the panel turtle described above has good water-stopping properties, so slime removal may be omitted). The above-mentioned steel panel 1 is hung and inserted through two vertical holes. In this case, the water stop surface of the panel turtle is inserted as the inner surface, and at this time, as shown in the fin diagram, the fin wealth contributes to maintaining the verticality of the panel turtle. Also, “Kutsube Kame 68
This contributes to making the hanging resistance 4. Since the panel is suspended and inserted as a panel turtle having a hollow part 7 inside, it is possible to insert the vertical hole 2 with high accuracy without deformation during hanging.
Therefore, the parallel connection in the horizontal direction of each panel 1 is performed by the female
The female wrists 4 and 15 are used to connect the panels 1 in tandem using the aforementioned joints 17.

このようにして鉛直孔２８１こパネル１を順次建込み挿
設した後に「経時硬化性の流動充填物３８ｔ良Ｐちｔ望
しくはコンクリート場合によっては砕石ト鉱藻、金属暦
等の産業廃棄物を先打ちし、その後に、セメントペース
トをグラウトする等の手段で、要するに経時硬化性の流
動充填物８０をパネル内部に打設するのであるが「 こ
れは１又は２パネル単位「又は３パネル建込み２パネル
打設等の構造物に適正の打設にて実施される。即ち「パ
ネル亀の中央部分に設置されたトレミー管挿入口にトレ
ミー管を設置するが「該トレミー管は薮手部村２２に挿
入されるヱとになる。トレミー管を介して充填物姦Ｑを
打設すれば、この充填物３Ｑは流動性を有するが故にも
パネル角の内部空洞部７に充満されるのは勿論「間隙１
３を介してパネル裏面にまで侵入することになる。即ち
「第富ｇ図にて示す如く打談充填物３Ｑ‘ま流入部８を
介して空洞部７の全体に均等に充填されてその分離を抑
えると共に「内面に関しては止水面亀１尊こて完壁に洩
れを阻止する一方「パネル裏面の掘削部までも間隙亀Ｓ
を介して充填され「当該掘削部における横方向の流動は
フィン亀鰭をこて阻止されるのである。After the vertical holes 281 and panels 1 are built and inserted one after another in this way, 38 tons of time-hardening fluid filler (preferably concrete) or industrial waste such as crushed stone, mineral algae, and metals are added. After that, a fluid filling material 80 that hardens over time is placed inside the panel by grouting with cement paste or the like. It is carried out by proper pouring in a structure such as two-panel pouring.In other words, a tremie tube is installed in the tremie tube insertion opening installed in the center of the panel, but the tremie tube is This will be inserted into the hole 22.If the filling material 3Q is cast through the tremie pipe, the internal cavity 7 at the corner of the panel will be filled with this filling material 3Q because it has fluidity. Of course, “gap 1
3 and even the back of the panel. That is, as shown in Fig. 3, the filler 3Q' is evenly filled into the entire cavity 7 through the inlet 8 to prevent separation, and the inner surface is filled with water-stopping surface. While the wall is completely finished to prevent leakage, even the excavated part on the back of the panel is completely sealed.
``The lateral flow in the excavation is blocked by the fins.

而して「第亀９図における鋼製パネル亀Ａはその中両端
に流入部８を有しトフィン亀６を有しないものでありも
又鋼製パネル富Ｂはその片側のみに流入部函を有し、他
の側にフィンー登を有するものを蓬込みした場合で示し
ておりしこれによれば暁打設部分蔓Ｃとの後手部および
パネル亀Ａ；軍Ｂとの後手部までも充填物３趣が流動し
てその硬化により接手部の強度を保証し「一方、次回打
談部分ＩＤへの流動を規制する。``In Figure 9, the steel panel A has an inlet 8 at both ends and does not have an inlet 6, and the steel panel B has an inlet box only on one side. The figure shows the case where the part with fins on the other side is folded in. According to this, the rear part of the Akatsuki pouring part with the vine C and the rear part of the panel turtle A; and the rear part with the army B are also filled. The material flows and hardens to ensure the strength of the joint, and on the other hand, restricts the flow to the next discussion area ID.

勿論、この第８ｇ図に示すものは蓮込み小例であり〜両
端に流入部蟹を有するパネル亀「流入部覇を両端に有し
ないパネルー「片側のみに流入部８を有するパネル量を
選択して鰹込むことができる。なお「斯る打談時に溢れ
た安定液（ベントナィト液）は次回掘削に再使用するた
め回収されることは従前同様である。Of course, what is shown in Fig. 8g is a small example of a lotus-containing panel. ``As before, the stabilizing liquid (bentonite liquid) that overflows during such discussions will be collected for reuse in the next excavation.

このようにして地中連続壁体３１が構築されるが〜 こ
の連続壁体３１を地下構造物の本体、地下構造物本体と
ともにその支持杭「擁護壁等として利用するいずれの場
合でも、パネル亀の内面「つまり「止水面竃蔓側は支保
工、切梁、山留め等を介袋しながら順次掘削されるもの
であり、第２０図乃至第２２図にはその壁体３１の施工
状況図が一部図解されている。In this way, the underground continuous wall 31 is constructed.In either case, the continuous wall 31 is used as the main body of the underground structure, its supporting piles, "protection walls, etc." The inner surface of the wall 31 is excavated one after another while installing shoring, struts, sills, etc., and Figures 20 to 22 show the construction status of the wall 31. Some are illustrated.

この第２０図乃至２２図に例示するものは地下貯蔵庫、
地下ガレージ等であり、第２３図に示す如く壁体３１の
下部３１Ａを所謂連続杭と構成し、壁体３１間に床面ス
ラブ構造体３２、中間又は天井スラグ構造体３３及び中
間間仕切り壁乃至支柱３４を介して地下構造物３５が横
秦されるのである。What is illustrated in FIGS. 20 to 22 is an underground storage,
This is an underground garage or the like, and as shown in FIG. 23, the lower part 31A of the wall 31 is configured as a so-called continuous pile, and between the wall 31 there is a floor slab structure 32, an intermediate or ceiling slag structure 33, and an intermediate partition wall. The underground structure 35 is lateralized via the pillars 34.

ここにおいて、地下構造物３５の構築に当り〜スラブ機
造体３２９ ３３と壁体３１との取合部継手は、壁体３
１の止水面１１の全体が面一でかつ鋼板面であることか
ら、スラブ構造体３２，３３の鉄骨、鉄筋等の梁材接合
が極めて容易となるのである。Here, in constructing the underground structure 35, the joint between the slab machine structure 329 33 and the wall 31 is
Since the entire water stop surface 11 is flush with a steel plate surface, joining beam materials such as steel frames and reinforcing bars of the slab structures 32 and 33 becomes extremely easy.

又、壁体３川ま鋼製パネルＳの主材５の断面性能と硬化
した充填物３０の剛性との協働作用に基く高強度のもの
となり、特に、空洞部７のみならず裏面にわたっても充
填物３０が侵入充填されていることから高強度となり耐
震性に富む構造とできる。In addition, the wall body 3 has high strength based on the cooperation between the cross-sectional properties of the main material 5 of the steel panel S and the rigidity of the hardened filler 30. Since the filler 30 is infiltrated, it is possible to obtain a structure with high strength and earthquake resistance.

又「内面は完全に閉止された止水面１１であることから
、止水性良好であるし、又、この面を利用して内装工事
が容易となるのである。又、第２３図に示す如く連続壁
体３１が構造物の支持層にまで到達していると割こは、
この部分に鎖線のように床スラブ構造物３６を構築して
大空間の地下室を構成することもできる。勿論「連続壁
体３１‘まこれを地下礎造物本体として採用しても止水
性良好で鉛直性を維持していることから支障はなく、更
にこの上に第２３図で示す如く階上構築物３７を構築す
ることもできる。この階上構築物３７の構成材料として
前述したパネル１を用いこれに充填物３０を充満硬化さ
せることもできる。第２２図を参照すればト地下連続壁
体３１はその隅部における取合部３８および所謂間仕切
り連続壁体としての取合部３９において横方向に接続す
ることもできるし「 このとき各取合部３８，３９とし
て前述した横方向懐手１４，１５が採用でき〜第２２図
では止水面１１の表面に雄又は雌の薮手１４又は１５を
設けたパネル１を利用したものを例示している。Furthermore, since the inner surface is a completely closed water-stopping surface 11, it has good water-stopping properties, and this surface can be used to facilitate interior construction. When the wall 31 reaches the support layer of the structure, Wariko
It is also possible to construct a large basement by constructing a floor slab structure 36 in this part as shown by the chain line. Of course, even if the continuous wall 31' is adopted as the main body of the underground foundation structure, there is no problem as it has good water-stopping properties and maintains verticality.Furthermore, as shown in FIG. It is also possible to construct the above-mentioned panel 1 as a constituent material of this upper floor structure 37, and fill it with the filling material 30 and harden it.Referring to FIG. It is also possible to connect in the lateral direction at the connecting portions 38 at the corners and the connecting portions 39 as so-called partition continuous walls. Figure 22 shows an example of a panel 1 in which male or female bushings 14 or 15 are provided on the surface of the water stop surface 11.

又、第２４図で示す如くパネル１はこれを方形に蓮込み
てその内部を中空部４０とした所謂中空場所打支持杭又
は支柱とすることもできる。Further, as shown in FIG. 24, the panel 1 can be formed into a rectangular shape with a hollow part 40 inside to form a so-called hollow cast-in-place support pile or pillar.

以上、要するに本発明では地下連続壁構築部分２７を、
掘削面２９の崩壊を防止しつつ鉛直に掘削する工程と；
対のフランジ２，３の中が異寸法でウヱブ４に充填物流
入部８を備えたパネル構成主村５の複数を互いに並設し
てその一面が閉塞された止水面１１で他面１２に間隙１
３を有し、かつ内部が空洞部７のパネル１を作成し、こ
のパネル母を前記工程で形成の鉛直孔２８内に止水面１
１を内面として吊込み挿設する工程と；該工程終了後に
前記パネル１の空洞部７に経時硬化流動性の充填物３０
を打設する工程と；からなることを特徴とする地下連続
壁の施工法に係るものであるから次のような利点がある
。パネル１はその止水面１１を内面として建込みされて
いるので、充填物３０の打設時にその洩れがないのは勿
論、止水性が良好であり、パネル１の主村５には流入部
８を設けてこれを介して充填物３０をパネル内部の全体
に均等に充填硬化できる。In short, in the present invention, the underground continuous wall construction portion 27 is
A step of excavating vertically while preventing the excavation surface 29 from collapsing;
A plurality of main panels 5 having different dimensions inside the flanges 2 and 3 of the pair and having a filler inflow portion 8 in the web 4 are arranged side by side, with one side having a closed water stop surface 11 and the other side 12 having a gap. 1
3 and has a hollow portion 7 inside, and this panel mother is inserted into the vertical hole 28 formed in the above step with a water stop surface 1.
1 as the inner surface; and after this step, a flowable filler 30 that hardens over time is inserted into the cavity 7 of the panel 1.
The method of constructing an underground continuous wall is characterized by the following steps: Since the panel 1 is constructed with its water-stopping surface 11 as the inner surface, there is no leakage when the filling material 30 is placed, and the water-stopping property is good. The filling material 30 can be uniformly filled and hardened throughout the inside of the panel through this provision.

また、パネル１として吊込み挿殻するので鉛直性が良好
かつ確実に維持できるし、従釆の如く鉄筋鍵を現場にて
組立ることがないので工期の短縮が図れるし、鋼製パネ
ル１であることから、吊込み時の変形はなく精度よく鉛
直性を保証しての挿設が可能となり、かつ所謂小口輸送
もでき、これらにより広大な用地不要で敷地境界線近く
までも施工可能であるし、経済性の点でも有利となる。In addition, since the panel 1 is hung as a shell, the verticality can be maintained well and reliably, and the construction period can be shortened because there is no need to assemble the reinforcing bar key on site unlike in the case of the substructure. Because of this, there is no deformation when hanging, and it is possible to install with high precision while guaranteeing verticality, and also allows for so-called small-lot transportation, making it possible to install even close to the property line without requiring a large site. However, it is also advantageous in terms of economy.

また、パネル１の相互後手は極めて容易となり、充填物
３０がパネル内部の空洞部７のみならず、裏面にまで充
填されることから、高強度の連続壁体３１を効率よく施
工でき、連続壁体３１の内面は止水面１１であり、これ
に鉄筋、スラブ等を容易に接合することも可能となる。
更に、本発明の第２の特徴では前記第１の特徴に加えて
パネル１の鞍手郡近傍のフィン１６で充填物３０の流動
を阻止しているが故に、前述の利点に加えて横方向パネ
ルの援手に支障なく連続壁体３１を構築できる等々の利
点がある。上述例ではパネル１を縦方向に薮手したが、
連続壁体３１によっては縦方向一枚のパネルであっても
よい。In addition, it is extremely easy to move the panels 1 from one another, and the filler 30 is filled not only to the cavity 7 inside the panel but also to the back surface, so a high-strength continuous wall 31 can be efficiently constructed, and the continuous wall The inner surface of the body 31 is a water-stopping surface 11, to which reinforcing bars, slabs, etc. can be easily joined.
Furthermore, in the second feature of the present invention, in addition to the first feature, the fins 16 near the saddle area of the panel 1 prevent the filling material 30 from flowing. There are advantages such as being able to construct the continuous wall body 31 without any hindrance to assistance. In the above example, panel 1 was trimmed vertically, but
Depending on the continuous wall body 31, it may be a single panel in the vertical direction.

また、パネル１の吊込み挿設とともに、その下部に掘削
手段を設けておけば、掘削同時鉛直建込みも可能となる
。図面の簡単な説験 第１図は本発明に用いるパネル一例の正面図〜第２図は
同背面図、第３図。Furthermore, if the panel 1 is hung and inserted and an excavation means is provided below it, vertical erection at the same time of excavation becomes possible. Brief illustration of the drawings FIG. 1 is a front view of an example of a panel used in the present invention, FIG. 2 is a rear view of the same, and FIG.

第４図は同左右側面図、第５図１，２は２つの例を示す
平面図、第６図は第５図１のＡ−Ａ断面図「第７図は第
５図１のＢ−Ｂ断面図、第８図蔓？ ２？ ３はパネル
構成主材の３例を示す平面図、第９図１， ２はパネル
構成主村の鞍手部２例を示す断面図、第苗０図はパネル
ェレメントに接手部を設けた場合の正面図〜第１１図は
そのＣ−Ｃ断面図、第１２図１，２は第１０図Ｄ−Ｄ線
２例を示す平面図、第亀３図１，２，３は別の鞍手部材
の詳細図、第１４図１９ ２，３は別の後手部材の詳細
図、第１５図軍？ 鞍，３，Ｗま横方向接手部の変形例
図、第亀６図は施工工程の鉛直壁構成の断面説明図「第
Ｉ７図はこれにパネルを挿設したときの説明図、第亀８
図】；２は第亀了図Ｅ−Ｅ拡大断面図、第１８図３は第
１７図Ｆ部の拡大図、第１９図は充填物の打設挙動を示
す状況平面図「第２０図は地下連続壁体の一部立面断面
図Ｌ第２１図はその一部正面図、第２２図はその一部平
面図、第２３図は地下連続壁体を利用した構造物一例の
説明図「第２４図は地下連続壁として中空独立柱（杭）
を示す平面説明図である。貴……パネル、２，３……フ
ランジ「 亀……ウヱブ、５…・・・主材、７……空洞
部ト亀亀小…止水面「 亀２・・…・他面〜 １３……
間隙、亀６……フィン、２７……構築部分、２覇・…４
後日直孔、２９掘削壁、３Ｑ・…・・充填物。4 is a left and right side view of the same, FIGS. 5 1 and 2 are plan views showing two examples, FIG. 6 is a sectional view taken along the line AA in FIG. 5 1, and FIG. B sectional view, Figure 8 Vines 2? 3 is a plan view showing three examples of the main panel components, Figure 9 1 and 2 are sectional views showing two examples of the saddle parts of the main panel components, Figure 0 11 is a front view of a panel element provided with a joint part. FIG. 11 is a sectional view taken along the line C-C, FIG. Figures 1, 2, and 3 are detailed views of another saddle hand member, Figure 14, 19, 2, and 3 are detailed views of another rear hand member, and Figure 15 is a modified example of the lateral joint part of the saddle, 3, and W. , Figure 6 is a cross-sectional explanatory diagram of the vertical wall configuration during the construction process, ``Figure I7 is an explanatory diagram when panels are inserted into this, Figure 8 is an explanatory diagram of the vertical wall configuration in the construction process.
Figure 2 is an enlarged sectional view taken along the line E-E in Figure 18, Figure 18 is an enlarged view of section F in Figure 17, Figure 19 is a plan view of the situation showing the filling behavior; FIG. 21 is a partial front view of the underground continuous wall, FIG. 22 is a partial plan view thereof, and FIG. 23 is an explanatory diagram of an example of a structure using the underground continuous wall. Figure 24 shows hollow independent columns (piles) as underground continuous walls.
FIG. Takashi...Panel, 2, 3...Flange "Turtle...Wave, 5...Main material, 7...Hollow part, Turtle small...Water stop surface" Turtle 2...Other side ~ 13...
Gap, turtle 6...fin, 27...construction part, 2 wins...4
Direct hole, 29 excavated wall, 3Q...filling later.

第１図 第２図 第３図 第４図 第５図 第６図 第７図 第８図 第９図 第１０図 第１１図 第１２図 第１３図 第１４図 第１５図 第１６図 第１７図 第１８図 第１９図 第２０図 第２１図 第２２図 第２３図 第２４図Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 Figure 7 Figure 8 Figure 9 Figure 10 Figure 11 Figure 12 Figure 13 Figure 14 Figure 15 Figure 16 Figure 17 Figure 18 Figure 19 Figure 20 Figure 21 Figure 22 Figure 23 Figure 24

Claims (1)

【特許請求の範囲】 １ 地下連続壁構築部分２７を、掘削面２９の崩壊を防
止しつつ鉛直に掘削する工程と；対のフランジ２，３の
巾が異寸法でウエブ４に充填物流入部８を備えたパネル
構成主材５の複数を互いに並設してその一面が閉塞され
た止水面１１で他面１２に間隙１３を有し、かつ内部が
空洞部７のパネル１を作成し、このパネル１を前記工程
で形成の鉛直孔２８内に止水面１１を内面として吊込み
挿設する工程と；該工程終了後に前記パネル１の空洞部
７に経時硬化流動性の充填物３０を打設する工程と；か
らなることを特徴とする地下連続壁の施工法。 ２ 地下連続壁構築部分２７を、掘削面２９の崩壊を防
止しつつ鉛直に掘削する工程と；対のフランジ２，３の
巾が異寸法でウエブ４に充填物流入部８を備えたパネル
構成主材５の複数を互いに並設してその一面が閉塞され
た止水面１１で他面１２に間隙１３を有し、かつ、内部
が空洞部７のパネル１を作成し、このパネル１を前記工
程で形成の鉛直孔２８内に止水面１１を内面として吊込
み挿設する工程と；該工程とともに又はその後にパネル
１の横方向接続部における少なくとも間隙１３を有する
面１２に流動阻止フイン１６を縦方向に挿設する工程と
；前記各工程終了後に前記パネル１の空洞部７に経時硬
化流動性の充填物３０を打設する工程と；からなること
を特徴とする地下連続壁の施工法。[Claims] 1. A step of vertically excavating the underground continuous wall construction portion 27 while preventing collapse of the excavation surface 29; A panel 1 is prepared by arranging a plurality of main panel members 5 having the following properties in parallel to each other, having a closed water-stop surface 11 on one side, a gap 13 on the other surface 12, and a hollow portion 7 inside. A step of suspending and inserting the panel 1 into the vertical hole 28 formed in the above step with the water stop surface 11 as the inner surface; After this step, pouring a fluid filler 30 that hardens over time into the cavity 7 of the panel 1. A construction method for an underground continuous wall characterized by the steps of: 2. A process of vertically excavating the underground continuous wall construction part 27 while preventing the collapse of the excavation surface 29; A panel construction main body in which the widths of the paired flanges 2 and 3 are different and the web 4 is provided with the filler inflow part 8. A panel 1 is prepared by arranging a plurality of materials 5 in parallel with each other, having a closed water-stop surface 11 on one side and a gap 13 on the other surface 12, and having a hollow portion 7 inside, and this panel 1 is subjected to the above-mentioned process. A step of suspending and inserting the water stop surface 11 into the vertical hole 28 formed in the above step; At the same time or after this step, a flow prevention fin 16 is vertically inserted into the surface 12 having at least the gap 13 at the horizontal connection portion of the panel 1. A method for constructing an underground continuous wall, comprising the steps of: inserting the filler 30 into the cavity 7 of the panel 1 after completing each of the above steps;