JP2002294693A - Cutoff structure of joint for linear steel sheet pile, and continuous wall of steel sheet pile - Google Patents
Cutoff structure of joint for linear steel sheet pile, and continuous wall of steel sheet pileInfo
- Publication number
- JP2002294693A JP2002294693A JP2001092288A JP2001092288A JP2002294693A JP 2002294693 A JP2002294693 A JP 2002294693A JP 2001092288 A JP2001092288 A JP 2001092288A JP 2001092288 A JP2001092288 A JP 2001092288A JP 2002294693 A JP2002294693 A JP 2002294693A
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- Prior art keywords
- water
- joint
- steel sheet
- sheet pile
- swelling
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Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、土木、建築および
海洋構造物（例えば、海上に構築する廃棄物処理場の外
周護岸や中仕切り護岸、堤防の遮水壁）などの分野にお
いて、止水性を必要とする止水壁の構築などに使用する
直線形鋼矢板の継手止水構造と鋼矢板連続壁に関するも
のである。The present invention relates to the field of civil engineering, construction, and marine structures (for example, water-blocking walls in outer peripheral seawalls, intermediate seawalls, and embankments of waste disposal sites constructed on the sea). The present invention relates to a joint water-stop structure of a straight steel sheet pile and a continuous wall of steel sheet pile used for construction of a water-stop wall requiring a steel sheet pile.
【０００２】また、本発明で用いる直線形鋼矢板とは、
従来概念の直線形鋼矢板、すなわち、フラットな鋼板本
体の両側縁に玉部と爪部とからなる嵌合継手を有する本
来の直線形鋼矢板に加えて、この本来の直線形鋼矢板を
構成の一部に具備するもの、すなわち、厚板Ｈ形鋼ある
いはＣＴ形鋼を工場で組み立て加工してなる、いわゆる
両爪タイプ、片爪タイプの高耐力、高剛性特殊鋼矢板も
含む広い意味で使用する。[0002] The straight steel sheet pile used in the present invention is:
In addition to the straight steel sheet pile of the conventional concept, that is, in addition to the original straight steel sheet pile having a fitting joint composed of a ball portion and a claw portion on both side edges of a flat steel sheet main body, the original straight steel sheet pile is configured. In a broad sense, including the so-called double-claw type, single-claw type high-strength, high-rigidity special steel sheet piles, which are obtained by assembling thick H-shaped steel or CT-shaped steel at the factory. use.
【０００３】[0003]
【従来の技術】前記の各分野において、３０〜５０ｍ程
度の土留めや地下壁を構築する場合、３〜５気圧程度の
耐水圧性能が要求されることがある。この場合、鋼矢板
を使って止水壁にするには、嵌合継手内空部（相対する
継手間の間隙）に止水材を充填するのが一般的である。
しかし、嵌合継手内空部に止水材を多量に充填すると嵌
合余裕を殺してしまうので、継手を嵌合させながら鋼矢
板を地中に施工するときの妨げとなってしまい具合が悪
い。2. Description of the Related Art In each of the above-mentioned fields, when constructing earth retaining or underground walls of about 30 to 50 m, water pressure resistance of about 3 to 5 atm may be required. In this case, in order to form a water-blocking wall using a steel sheet pile, it is common to fill a water-blocking material into an inner space of the fitting joint (a gap between opposed joints).
However, filling the inner space of the fitting joint with a large amount of the water-stopping material will kill the fitting margin, which hinders the construction of the steel sheet pile under the ground while fitting the fitting, and is inconvenient. .
【０００４】前述の嵌合余裕浸食を回避する鋼製矢板と
しては、実公平７−６１７９号公報に記載の鋼矢板が知
られている。この先行技術に開示された直線形鋼矢板
は、継手の嵌合内接部の軸長手方向に凹状溝を穿設し、
この凹状溝に水膨張止水材を充填するものである。A steel sheet pile described in Japanese Utility Model Publication No. 7-6179 is known as a steel sheet pile which avoids the above-mentioned erosion due to excessive fitting. The straight steel sheet pile disclosed in this prior art has a concave groove in the axial longitudinal direction of the fitting inscribed portion of the joint,
This concave groove is filled with a water-swelling water-stopping material.
【０００５】すなわち、図１２、図１３に示すように、
玉部５ａ、５ｂと爪部６ａ、６ｂが互いに嵌り合った直
線形鋼矢板の継手部１、２において、その嵌合内接面の
位置、つまり、図１２では、玉部５ａ、５ｂの頂部５ａ
1、５ｂ1の位置に凹状溝３が軸長手方向に穿設され、同
じく、図１３では、玉部５ａ、５ｂの頚部５ａ2、５ｂ2
の位置に凹状溝３が軸長手方向に穿設され、各凹状溝３
に水膨張止水材４が充填されている。That is, as shown in FIGS. 12 and 13,
In the joint portions 1 and 2 of the straight steel sheet piles in which the ball portions 5a and 5b and the claw portions 6a and 6b are fitted to each other, the position of the fitting inscribed surface, that is, the top portions of the ball portions 5a and 5b in FIG. 5a
1, the concave groove 3 is bored in the axial longitudinal direction in the position of 5b 1, similarly, in FIG. 13, the ball portion 5a, 5b of the neck 5a 2, 5b 2
The concave groove 3 is formed in the axial direction at the position shown in FIG.
Is filled with a water-swelling water-stopping material 4.
【０００６】図１２、図１３の継手構造では、継手部
１、２の凹状溝３に水膨張止水材（水膨張性シール材）
４が充填されているので、鋼矢板の打設時、この水膨張
止水材４による嵌合継手内空部の嵌合余裕の浸食を回避
することができるとされる。In the joint structures shown in FIGS. 12 and 13, a water-swelling water-stopping material (water-swellable sealing material) is provided in the concave grooves 3 of the joints 1 and 2.
Since the steel sheet pile 4 is filled, it is possible to avoid erosion of the fitting allowance of the inner space of the fitting joint due to the water expansion / stopping material 4 when driving the steel sheet pile.
【０００７】また、図１２の継手構造では、２箇所で水
膨張止水材４による止水が行われるため止水効果が高
く、鋼矢板加工において、高水圧がかかる場所に使用す
るに適するとされている。また、図１３の継手構造で
は、２箇所で水膨張止水材４による止水が行われるため
止水効果が高く、鋼矢板加工において、高水圧がかかる
場所に使用されるが（この点は図１２と同じ）、頚部５
ａ2、５ｂ2が外を向いているので、打設後における水膨
張止水材４の吸水膨張がより円滑で、止水機能について
信頼性が高いとされる。Further, in the joint structure shown in FIG. 12, water is stopped by the water-swelling water-stopping material 4 at two locations, so that the water-stopping effect is high. Have been. Further, in the joint structure of FIG. 13, since the water is stopped by the water-swelling water-stopping material 4 at two places, the water-stopping effect is high, and it is used in a place where a high water pressure is applied in steel sheet pile processing. 12), neck 5
Since a 2 and 5b 2 face outward, the water-swelling and water-stopping material 4 after casting is more smoothly absorbed and expanded, and the water-stopping function is highly reliable.
【０００８】[0008]
【発明が解決しようとする課題】実公平７−６１７９号
公報に開示された鋼矢板は、前述のように接合面に切削
した凹状溝に水膨張止水材を充填した継手部にして、こ
れにより鋼矢板打設時における、継手部の嵌合余裕浸食
を回避する方法の一つであるが、この従来技術は、嵌合
継手部に溝を掘って止水材を充填するものなので、付加
加工が必要であるし、凹状溝の掘削による強度低下など
継手の性能が低下することは否めない。The steel sheet pile disclosed in Japanese Utility Model Publication No. 7-6179 has a joint formed by filling a water-swelling water-stopping material into a concave groove cut in a joint surface as described above. This is one of the methods to avoid the erosion of fitting margin at the time of driving steel sheet pile.However, in this conventional technique, a groove is dug in the fitting joint to fill the waterproof material. It is undeniable that machining is required and the performance of the joint is reduced, such as a decrease in strength due to excavation of the concave groove.
【０００９】他方、図１４に示すように、直線形鋼矢板
の継手部１、２の玉部５ａ、５ｂと爪部６ａ、６ｂで形
成される円弧状凹部に沿って全体的に、水膨張止水材４
を例えば、２ｍｍ程度の厚みで塗布することが考えられ
る。しかし、この方法では、円弧状凹部の開口部の幅、
つまり、玉部５ａ、５ｂと爪部６ａ、６ｂの間が狭く塗
布部分は奥まった場所であり、かつ鋼矢板は長手方向に
長いので、幅狭の開口部から塗布用の刷毛を差し込ん
で、図のように円弧状凹部に沿って水膨張止水材４を塗
布することは困難である。また、水膨張止水材４を塗布
する面を下にして止水材を流し込むやり方では、一度に
全域を塗布できないので、数回に分けて塗布・養生を繰
り返す必要があるため手間がかり現実的でない。さら
に、前記の方法では、多量の水膨張止水材４が必要にな
る。それに加え、前記方法では、継手部１、２の円弧状
凹部に沿って全体的に水膨張止水材４を塗布するため、
鋼矢板の打設時、水膨張止水材４と玉部５ａ、５ｂとが
接触する可能性が多くなる、つまり、円滑な打設が妨げ
られる程度にまで嵌合余裕が浸食される可能性が高くな
る。[0009] On the other hand, as shown in FIG. 14, the water swells as a whole along the arc-shaped recess formed by the ball portions 5a and 5b and the claw portions 6a and 6b of the joint portions 1 and 2 of the straight steel sheet pile. Waterstop 4
Is applied with a thickness of, for example, about 2 mm. However, in this method, the width of the opening of the arc-shaped concave portion,
In other words, the gap between the ball portions 5a, 5b and the claw portions 6a, 6b is narrow, and the application portion is a recessed portion, and since the steel sheet pile is long in the longitudinal direction, a brush for application is inserted from the narrow opening, It is difficult to apply the water-swelling and water-stopping material 4 along the arcuate concave portion as shown in the figure. Also, in the method of pouring the water-stopping material with the surface to which the water-swelling water-stopping material 4 is applied downward, it is not possible to apply the entire area at once, so it is necessary to repeat the application and curing in several steps, which is troublesome and realistic. Not. Further, in the above-mentioned method, a large amount of the water-swelling waterproofing material 4 is required. In addition, in the above method, the water-swelling water-stopping material 4 is applied entirely along the arc-shaped concave portions of the joint portions 1 and 2,
When the steel sheet pile is driven, the possibility that the water-swelling water-stopping material 4 and the ball portions 5a and 5b come into contact with each other increases, that is, the fitting margin may be eroded to such an extent that smooth driving is prevented. Will be higher.
【００１０】その他の継手止水構造として、ラルゼン型
鋼矢板継手において、体積膨張率が約２０倍程度の水膨
張止水材を鋼矢板の嵌合継手長さ１ｍ当り約２００〜４
００ｇ塗布することで止水継手とする事例（例えば、特
開２０００−１９２４５１号公報）があるが、このラル
ゼン型鋼矢板継手でも、全体に亘り略等間隔で形成され
た接合部間隙に塗布された水膨張止水材が、鋼矢板打設
時の継手部の嵌合余裕を浸食することになる。As another joint water-stop structure, in a Larsen type steel sheet pile joint, a water-swelling water-stopping material having a volume expansion coefficient of about 20 times is applied to a steel sheet pile at a length of about 200 to 4 per meter of fitting joint length.
There is a case (for example, Japanese Patent Application Laid-Open No. 2000-192451) in which a water-proof joint is formed by applying 00 g. However, even with this Larsen-type steel sheet pile joint, the joint is applied to the joint gap formed at substantially equal intervals throughout. The water-swelling water-stopping material will erode the fitting margin of the joint portion at the time of driving steel sheet pile.
【００１１】本発明者は、前記従来技術の欠点を改良す
べく、種々の観点から研究した。特に、嵌合継手内空部
に水膨張止水材を充填することが、鋼矢板打設時におけ
る継手部の嵌合余裕を浸食するのであれば、施工支障と
ならない程度に少量の止水材を塗って、所定の耐水圧性
能を満足する止水壁を形成する方法がないかとの観点か
ら研究を重ねた。The present inventor has studied from various viewpoints in order to improve the disadvantages of the prior art. In particular, if filling the inner space of the fitting joint with the water-swelling water-stopping material erodes the fitting margin of the joint portion at the time of steel sheet pile driving, a small amount of the water-stopping material will not hinder the construction. The research was repeated from the viewpoint of whether there is a method of forming a water blocking wall satisfying a predetermined water pressure resistance performance by painting the water.
【００１２】この点に関して、従来は、図１４のよう
に、継手部１、２の円弧状凹部に沿って全体的に水膨張
止水材４を塗布する場合において、鋼矢板打設時の継手
部の嵌合余裕の浸食を回避するため、仮に、嵌合余裕を
浸食しない程度にごく少量塗布したとしても、それでは
十分な止水性が得られないと考えられていた。In this regard, conventionally, as shown in FIG. 14, in the case where the water-swelling water-stopping material 4 is applied entirely along the arc-shaped concave portions of the joint portions 1 and 2, the joint at the time of driving a steel sheet pile is used. In order to avoid the erosion of the fitting margin of the part, even if it is applied in a very small amount so as not to erode the fitting margin, it has been considered that sufficient water stoppage cannot be obtained by that.
【００１３】すなわち、従来は、嵌合継手内空部に施工
支障とならない程度に少量の止水材を塗って所定の耐水
圧性能を満足する継手止水構造は、最初から顧みられる
ことがなかった。本発明者は、従来顧みられることがな
かった前記の観点からさらに実験を繰り返した。その結
果、直線形鋼矢板の継手部接合内面に余り施工支障とな
らない特定の部位にして、かつ、施工支障とならない程
度に少量の止水材を塗っても、所期の耐水圧性能を満足
する継手止水構造が実現可能なことを確認した。That is, conventionally, a joint waterproof structure that satisfies a predetermined water pressure resistance performance by applying a small amount of waterproof material to the inside of the fitting joint so as not to hinder the construction has been considered from the beginning. Was. The present inventor has further repeated the experiment from the above-mentioned viewpoint which has not been looked at conventionally. As a result, the desired water pressure resistance performance is satisfied even if it is applied to a specific part that does not hinder construction much on the joint inner surface of the joint of the straight steel sheet pile, and even if a small amount of waterproof material is applied so as not to hinder construction It has been confirmed that a joint water-stop structure can be realized.
【００１４】本発明は、前記の知見に基づいてなされた
直線形鋼矢板の継手止水構造と、これを用いた鋼矢板連
続壁を提供することを目的とする。An object of the present invention is to provide a joint water-stop structure for a straight steel sheet pile made on the basis of the above findings, and a steel sheet pile continuous wall using the same.
【００１５】[0015]
【問題を解決するための手段】前記の目的を達成するた
め、本発明は次のように構成する。To achieve the above object, the present invention is configured as follows.
【００１６】第１の発明は、円弧状凹部の両端に玉部と
爪部が形成された直線形鋼矢板の継手において、両継手
の嵌め合わせ時に両継手の玉部間に形成される２つの内
側空隙部に施工性を妨げない量の止水材を塗布すること
を特徴とする。According to a first aspect of the present invention, in a joint of a straight steel sheet pile having a ball portion and a claw portion formed at both ends of an arc-shaped concave portion, two joints formed between the ball portions of the two joints when the two joints are fitted together. It is characterized in that an amount of water-stopping material that does not hinder workability is applied to the inner space.
【００１７】第２の発明は、第１の発明において、２つ
の内側空隙部に塗布する止水材に加えて、相対する玉部
と爪部との間に形成される２つの外側空隙部に施工性を
妨げない量の止水材を塗布することを特徴とする。According to a second aspect of the present invention, in the first aspect, in addition to the water-stopping material applied to the two inner gaps, two outer gaps formed between opposing ball portions and claw portions are formed. It is characterized by applying an amount of waterproof material that does not hinder workability.
【００１８】第３の発明は、第１または第２記載の発明
における前記止水材は、水膨張止水材であると共に、水
膨張止水材の塗布量は、乾燥後の値で、当該水膨張止水
材のフラット面と空隙部の円弧状凹面の最深部との厚さ
が１ｍｍ〜１０ｍｍ、または断面積が１０ｍｍ2〜１６
０ｍｍ2であることを特徴とする。According to a third aspect of the present invention, in the first or second aspect, the water-stopping material is a water-swelling water-stopping material, and a coating amount of the water-swelling water-stopping material is a value after drying. the thickness of the arc-shaped concave surface of the deepest part of the flat surface and the gap portion of the water-swellable water stopping material is 1mm~10mm or cross-sectional area of 10 mm 2 ~ 16,
0 mm 2 .
【００１９】第４の発明は、第１〜３の何れかに記載の
発明において、前記２つの内側空隙部にそれぞれ塗布さ
れる止水材は、互いに圧接し合っていることを特徴とす
る。A fourth invention is characterized in that, in the invention according to any one of the first to third inventions, the water-stopping materials applied to the two inner gap portions are in pressure contact with each other.
【００２０】第５の発明は、第１〜４の何れかに記載の
複数の直線形鋼矢板を、その継手部を介して水密的に連
結して鋼矢板連続壁としたことを特徴とする。A fifth invention is characterized in that a plurality of straight steel sheet piles according to any one of the first to fourth aspects are connected in a water-tight manner through joints thereof to form a steel sheet pile continuous wall. .
【００２１】[0021]
【作用】直線形鋼矢板継手部の嵌合余裕代は、軸方向
（矢板幅方向）で１５ｍｍ、軸直角方向で１０ｍｍ程度
ある。本発明において、嵌合継手内空部における２つの
内側空隙部に水膨張止水材を塗布する場合、この２つの
水膨張止水材が膨張時接触し合うことで一体化され、実
質上のシール長を長くできるので、耐水圧性能が優れ
る。また、嵌合余裕が比較的小さい場所なので、少量の
止水材を使うだけでシールできる。また、嵌合継手内空
部における２つの内側空隙部に水膨張止水材を塗布する
のに加え、２つの外側空隙部にも水膨張止水材を塗布す
ることで、継手部の止水作用は一層向上する。なお、膨
張後の水膨張止水材と同等の作用効果を有する弾性材料
等の止水材を採用してもよい。The margin of fitting of the straight steel sheet pile joint is about 15 mm in the axial direction (sheet pile width direction) and about 10 mm in the direction perpendicular to the axis. In the present invention, when the water-swelling water-stopping material is applied to the two inner gaps in the inner space of the fitting joint, the two water-swelling water-stopping materials come into contact with each other at the time of inflation to be integrated, and are substantially integrated. Since the seal length can be lengthened, the water pressure resistance is excellent. In addition, since the fitting margin is relatively small, the seal can be achieved only by using a small amount of the waterproof material. In addition to applying the water-swelling water-stopping material to the two inner gaps in the inner space of the fitting joint, the water-swelling water-stopping material is applied to the two outer gaps as well, so that the water stoppage of the joint is prevented. The action is further improved. Note that a water-stopping material such as an elastic material having the same function and effect as the water-swelling water-stopping material after expansion may be employed.
【００２２】[0022]
【発明の実施の形態】以下、本発明の実施形態を図を参
照して説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described with reference to the drawings.
【００２３】図１〜図３は、直線形鋼矢板において、本
発明の第１実施形態に係る止水構造を実施した継手の嵌
合状態の部分平面図で、図１は中立嵌合状態、図２は圧
縮嵌合状態、図３は引張嵌合状態を示す図である。図４
〜図６は、同じく第２実施形態に係る止水構造を実施し
た継手の嵌合状態の部分平面図で、図４は中立嵌合状
態、図５は圧縮嵌合状態、図６は引張嵌合状態を示す図
である。FIGS. 1 to 3 are partial plan views showing a fitting state of a joint in which a watertight structure according to a first embodiment of the present invention is applied to a straight steel sheet pile, and FIG. 1 shows a neutral fitting state. FIG. 2 is a view showing a compression fitting state, and FIG. 3 is a view showing a tension fitting state. FIG.
6 are partial plan views of a fitting state of the joint in which the water blocking structure according to the second embodiment is implemented, FIG. 4 is a neutral fitting state, FIG. 5 is a compression fitting state, and FIG. It is a figure showing a combined state.
【００２４】図１〜図３において、直線形鋼矢板の継手
部１、２は、被握部すなわち凹部９の両端に玉部５ａ、
５ｂと爪部６ａ、６ｂを有し、雌雄同一の形態となって
おり、一方の継手部１と他方の継手部２の嵌合に際して
は、各図に示されるようにそれぞれ玉部５ａ、５ｂを爪
部６ａ、６ｂが握り込むように構成されている。1 to 3, the joints 1 and 2 of the straight steel sheet pile are provided with ball portions 5a at both ends of a gripped portion, that is, a concave portion 9.
5b and claw portions 6a and 6b, and are of the same shape as the male and female. When fitting one joint portion 1 and the other joint portion 2, as shown in the respective drawings, the ball portions 5a and 5b Are configured so that the claw portions 6a and 6b can grip.
【００２５】図１〜図３に示すように、凹部９と、玉部
５ａ、５ｂと、爪部６ａ、６ｂを主要素とする継手部
１、２は、嵌合時、中立、圧縮、引張の何れかの嵌合状
態が存在するが、何れの嵌合状態にあっても、相対する
継手部１、２の嵌合部内面の間には、中立、圧縮、引張
の何れかの嵌合状態にある時々で、空隙の形状と大きさ
は異なるが、必ず異形の空隙が複数存在している。As shown in FIGS. 1 to 3, the joints 1 and 2 having the concave portion 9, the ball portions 5a and 5b, and the claw portions 6a and 6b as main elements, when fitted, are neutral, compressed and tensile. In any of the fitting states, any one of neutral, compression, and tension fittings can be provided between the inner surfaces of the fitting portions of the joints 1 and 2 facing each other. Although the shape and size of the gap are different depending on the state, there are always a plurality of odd-shaped gaps.
【００２６】本発明では、継手部１、２が中立、圧縮、
引張の何れの嵌合状態においても、嵌合部内面には複数
の空隙が存在することに着目し、この複数の空隙のう
ち、特定の部位の空隙に鋼矢板の打設に支障にならない
態様で、かつ打設に支障にならない量の止水材、好まし
くは水膨張止水材（水膨張シール材）７が塗布されてい
る。図１〜図３において、両継手の玉部５ａ、５ｂ間に
形成される２つの内側空隙部８、８に、鋼矢板の打設時
に嵌合継手内空部の嵌合余裕を浸食しない、つまり、施
工性を妨げない量の水膨張止水材７を塗布している。以
下、止水材として水膨張止水材を用いた実施の形態を中
心に説明する。In the present invention, the joints 1 and 2 are neutral, compressed,
Attention is paid to the fact that a plurality of gaps are present on the inner surface of the fitting portion in any of the tension fitting states, and among the plurality of gaps, a mode that does not hinder the driving of the steel sheet pile into the gap at a specific portion. In addition, a water-stopping material, preferably a water-swelling water-stopping material (water-swelling sealing material) 7, is applied so as not to hinder the casting. In FIG. 1 to FIG. 3, the inner margins 8, 8 formed between the ball portions 5 a, 5 b of both joints do not erode the fitting margin of the inner space of the fitting joint when the steel sheet pile is driven. That is, the amount of the water-swelling water-stopping material 7 that does not hinder the workability is applied. Hereinafter, an embodiment using a water-swelling water-stopping material as a water-stopping material will be mainly described.
【００２７】ここで施工性を妨げない量の水膨張止水材
７とは、図１、図２に示すように、両継手部１、２が当
接部（イ）で接している、中立、圧縮の嵌合状態で鋼矢
板が打設されるとき、玉部５ａ、５ｂが水膨張止水材７
と若干離れている程度に塗布されている場合があると共
に、さらに、図３に示すように、両継手部１、２が当接
部（イ）で接している、引張の嵌合状態で鋼矢板が打設
されるとき、大きな抵抗とならない程度に玉部５ａ、５
ｂが水膨張止水材７に若干当たる程度（当接部は、打設
時、剥ぎ取られる）に塗布されている場合を含むもので
ある。Here, the amount of the water-swelling water-stopping material 7 which does not hinder the workability is, as shown in FIGS. 1 and 2, a neutral joint in which the joints 1 and 2 are in contact with each other at the contact portion (a). When the steel sheet pile is driven in the compression fitting state, the ball portions 5a and 5b
In some cases, the joints 1 and 2 are in contact with each other at an abutting portion (a), and the steel is applied in a tensioned state, as shown in FIG. When the sheet pile is driven, the ball portions 5a, 5a
This includes the case where b is slightly applied to the water-swelling water-stopping material 7 (the contact portion is peeled off at the time of casting).
【００２８】さらに具体的には、膨張率が約１．２〜２
０倍の水膨張止水材であると共に、水膨張止水材７の塗
布量は、乾燥後の値で、水膨張止水材７のフラットな上
面と空隙部の円弧状凹面の最深部との厚さが１ｍｍ〜１
０ｍｍ、断面積が１０ｍｍ2〜１６０ｍｍ2である。More specifically, the expansion coefficient is about 1.2 to 2
In addition to the water-swelling water-stopping material of 0 times, the application amount of the water-swelling water-stopping material 7 is a value after drying, and is equal to the flat upper surface of the water-swelling water-stopping material 7 and the deepest part of the arc-shaped concave surface of the void. Thickness is 1mm ~ 1
0 mm, the cross-sectional area is 10mm 2 ~160mm 2.
【００２９】図１〜図３に示すように、継手部１、２が
中立、圧縮、引張の何れかの嵌合状態において、２つの
内側空隙部８、８に塗布される水膨張止水材７の状態を
順に説明する。As shown in FIGS. 1 to 3, when the joints 1 and 2 are in a neutral, compression or tension fitting state, the water-swelling water-stopping material applied to the two inner gaps 8 and 8 is used. State 7 will be described in order.
【００３０】図１に示す継手部１、２が中立にある嵌合
状態において、両継手部１、２の爪部６ａ、６ｂの先端
１１が、相手側の玉部５ａ、５ｂの頚部外側１２に当接
しており、この状態において、２つの内側空隙部８、８
は、図示のように形成されており、各内側空隙部８、８
に水膨張止水材７が斜線で示す位置まで塗布されてい
る。図１の例では、水膨張止水材７は、乾燥後の値で、
内側空隙部８、８の円弧状凹面の最深部と水膨張止水材
７のフラットな上面までの厚さ（ｔ）が２ｍｍ、断面積
２０ｍｍ2が示されている。In the fitting state in which the joints 1 and 2 shown in FIG. 1 are neutral, the tips 11 of the claws 6a and 6b of the joints 1 and 2 are attached to the neck outer sides 12 of the mating balls 5a and 5b. , And in this state, the two inner gaps 8, 8
Are formed as shown in FIG.
Is applied to the position shown by the diagonal lines. In the example of FIG. 1, the water-swelling water-stopping material 7 is a value after drying,
The thickness (t) from the deepest part of the arcuate concave surfaces of the inner gaps 8 and 8 to the flat upper surface of the water-swelling and water-stopping material 7 is 2 mm, and the cross-sectional area is 20 mm 2 .
【００３１】図１に示されるように、水膨張止水材７は
ごく少量であるので、継手部１、２が中立の嵌合状態に
おいて、水膨張止水材のフラットな上面と玉部５ａ、５
ｂの両端との間には若干の間隙が存在しており、この嵌
合状態で直線形鋼矢板を打設するとき、当該水膨張止水
材７が玉部５ａ、５ｂの両端に当たる可能性が少ない。
また、水膨張止水材７を塗布しない他の部位には、嵌合
継手内空部の嵌合余裕が存在しており、円滑な直線形鋼
矢板の打設が可能である。As shown in FIG. 1, since the water-swelling water-stopping material 7 is very small, the flat upper surface of the water-swelling water-stopping material and the ball portion 5a when the joints 1 and 2 are in a neutral fitting state. , 5
There is a slight gap between the ends of the ball 5b and the ends of the ball portions 5a and 5b when the straight steel sheet pile is driven in this fitted state. Less is.
In addition, at other portions where the water-swelling and water-stopping material 7 is not applied, there is a fitting allowance in the inner space of the fitting joint, and a smooth straight steel sheet pile can be driven.
【００３２】次に、図２に示す継手部１、２が圧縮の嵌
合状態において、玉部５ａ、５ｂの端部が、相手側の玉
部５ａ、５ｂの頚部内側１３に当接しており、この状態
において、２つの内側空隙部８、８は、図示のように形
成されており、各内側空隙部８、８に水膨張止水材７が
斜線で示す位置まで塗布されている。図２の例では、水
膨張止水材７は、乾燥後の値で、内側空隙部８、８の円
弧状凹面の最深部と水膨張止水材７のフラットな上面ま
での厚さ（ｔ）が１ｍｍ、断面積１０ｍｍ2が示されて
いる。Next, when the joints 1 and 2 shown in FIG. 2 are in the compression-fitted state, the ends of the balls 5a and 5b are in contact with the inner sides 13 of the necks of the mating balls 5a and 5b. In this state, the two inner gaps 8, 8 are formed as shown in the drawing, and the water-swelling and water-stopping material 7 is applied to each inner gap 8, 8 to a position indicated by oblique lines. In the example of FIG. 2, the water-swelling water-stopping material 7 has a thickness (t) between the deepest portion of the arc-shaped concave surface of the inner gaps 8 and the flat upper surface of the water-swelling water-stopping material 7 in a value after drying. ) Is 1 mm and the cross-sectional area is 10 mm 2 .
【００３３】図２に示されるように、前記水膨張止水材
７はごく少量であるので、継手部１、２が圧縮の嵌合状
態において、水膨張止水材７のフラットな上面と玉部５
ａ、５ｂの両端との間には若干の間隙が存在しており、
この嵌合状態で直線形鋼矢板を打設するとき、当該水膨
張止水材７が玉部５ａ、５ｂ両端に当たる可能性が少な
い。また、水膨張止水材７を塗布しない他の部位には、
嵌合継手内空部の嵌合余裕が存在し、円滑な直線形鋼矢
板の打設が可能である。As shown in FIG. 2, since the water-swelling water-stopping material 7 is very small, the flat top surface of the water-swelling water-stopping material 7 and the ball when the joints 1 and 2 are in a compression fitting state. Part 5
a, there is a slight gap between the ends of the 5b,
When the straight steel sheet pile is driven in this fitted state, there is little possibility that the water-swelling water-stopping material 7 hits both ends of the ball portions 5a, 5b. In addition, in other parts where the water-swelling water-stopping material 7 is not applied,
There is a fitting margin in the inner space of the fitting joint, and it is possible to drive a straight steel sheet pile smoothly.
【００３４】次に、図３に示す継手部１、２が引張の嵌
合状態においては、爪部６ａ、６ｂの先端１１が、相手
側の玉部５ａ、５ｂの頚部外側１２に当接しており、こ
の状態において、２つの内側空隙部８、８は図示のよう
に形成されており、各内側空隙部８、８に水膨張止水材
７が斜線で示す位置まで塗布されている。図３の例で
は、水膨張止水材７は、乾燥後の値で、内側空隙部８、
８の円弧状凹面の最深部と水膨張止水材７のフラットな
上面までの厚さ（ｔ）が１０ｍｍ、断面積１６０ｍｍ2
が示されている。Next, in a state where the joints 1 and 2 shown in FIG. 3 are in a tension-fit state, the tips 11 of the claws 6a and 6b come into contact with the neck outer sides 12 of the mating balls 5a and 5b. In this state, the two inner gaps 8, 8 are formed as shown in the drawing, and the water-swelling and water-stopping material 7 is applied to each inner gap 8, 8 to a position indicated by oblique lines. In the example of FIG. 3, the water-swelling water-stopping material 7 has a value after drying,
8 has a thickness (t) of 10 mm from the deepest portion of the arc-shaped concave surface to the flat upper surface of the water-swelling and water-stopping material 7, and a cross-sectional area of 160 mm 2.
It is shown.
【００３５】図３に示される例では、図１、図２に比べ
て水膨張止水材７の塗布量が若干多く、図のように、玉
部５ａ、５ｂの端部が一部水膨張止水材７にかぶってい
る。したがって、鋼矢板の打設時、玉部５ａ、５ｂの端
部が水膨張止水材７を一部剥ぎ取りながら打設される
が、元々の水膨張止水材７の塗布量が少ないので、それ
により、殆ど打設時の障害にならない。また、水膨張止
水材７を塗布しない他の部位には、嵌合継手内空部の嵌
合余裕が存在し、円滑な直線形鋼矢板の打設が可能であ
る。In the example shown in FIG. 3, the application amount of the water-swelling and water-stopping material 7 is slightly larger than in FIGS. 1 and 2, and as shown in FIG. It is on the waterproof material 7. Therefore, when the steel sheet pile is driven, the ends of the ball portions 5a and 5b are driven while partly peeling off the water-swelling and water-stopping material 7, but the application amount of the original water-swelling water-stopping material 7 is small. Therefore, it hardly hinders the driving. Further, at other portions where the water-swelling and water-stopping material 7 is not applied, there is a fitting margin of the inner space of the fitting joint, so that a straight steel sheet pile can be smoothly placed.
【００３６】図１〜図３の中立、圧縮、引張の嵌合位置
において、直線形鋼矢板の打設後、２つの内側空隙部
８、８における２つの水膨張止水材７が水を吸収して、
体積膨張率、約２０倍、面積膨張率、約７．５倍で膨張
したとき、図１〜図３に示すように、２つの内側空隙部
８、８に存在する２つの膨張後シール材７ａが膨張時接
触し合うことで一体化され、両継手部１、２間の水道
（みずみち）における、実質上のシール長を長くできる
ので、耐水圧性能が優れ、また、嵌合余裕が比較的小さ
い場所において、少量の止水材を使うだけでシールでき
る。なお、図１においては、２つの膨張後シール材７ａ
のそれぞれが、乾燥時、２０ｍｍ2の断面積が、膨張時
１４３ｍｍ2に増大し、図２においては、乾燥時、１０
ｍｍ2の断面積が、膨張時７８ｍｍ2に増大した状態を示
す。図３においては、乾燥時、１６０ｍｍ2相当の水膨
張止水材７を塗布し嵌合した状態を示す。In the neutral, compression and tension fitting positions shown in FIGS. 1 to 3, after the straight steel sheet pile is driven, the two water-swelling water-stopping materials 7 in the two inner gaps 8 absorb water. do it,
When expanded at a volume expansion rate of about 20 times and an area expansion rate of about 7.5 times, as shown in FIGS. 1 to 3, two expanded sealing materials 7 a existing in the two inner void portions 8 and 8 are provided. Are integrated by being in contact with each other when they expand, and the effective seal length in the water supply between the joints 1 and 2 can be increased, so that the water pressure resistance is excellent and the fitting margin is compared. It can be sealed in a small place using only a small amount of waterproof material. In FIG. 1, two post-expansion sealing materials 7a are provided.
Each has a cross-sectional area of 20 mm 2 when dried, which increases to 143 mm 2 when expanded, and FIG.
sectional area of mm 2 indicates a state in which increased upon inflation 78mm 2. FIG. 3 shows a state in which a water-swelling water-stopping material 7 equivalent to 160 mm 2 is applied and fitted during drying.
【００３７】本発明においては、前述のとおり、継手部
１、２における２つの内側空隙部８、８に２つの水膨張
止水材７を塗布すること、及び、この２つの膨張後シー
ル材７ａが膨張時接触しあって一体化することが、優れ
た止水性を発揮できる要因であって、仮に、離れて配置
する２つの膨張後シール材７ａでシールする場合の止水
性に比べれば、それよりはるかに優れた止水性を発揮さ
せることができる（試験結果を後述する）。In the present invention, as described above, two water-swelling waterproof materials 7 are applied to the two inner gaps 8 in the joints 1 and 2, and the two expanded sealing materials 7a are provided. Are in contact with each other at the time of expansion and are integrated, which is a factor capable of exhibiting excellent water-stopping property. It is possible to exhibit much better water stopping performance (test results will be described later).
【００３８】しかし、止水材の塗布厚さが１ｍｍ未満、
または止水材の断面積が１０ｍｍ2未満の場合は、特
に、継手の圧縮嵌合状態において、水膨張止水材７が膨
張しても、両継手の玉部５ａ、５ｂに形成される２つの
内側空隙部８、８を、２つの膨張後シール材７ａにて隙
間なく充満させることができず、所定の耐水圧性能を満
足させることができないため、止水材の塗布厚さを１ｍ
ｍ未満、または止水材の断面積を１０ｍｍ2未満とする
のが好ましい。一方、止水材の塗布厚さまたは断面積の
上限は、玉部継手を下側にして流し込んで止水材を塗布
する場合には、玉部継手最上面よりも高く塗布すること
は困難であることから限定される。すなわち、この方法
で塗布できる最大塗布量として、止水材の厚さを１０ｍ
ｍ以下、または止水材の断面積を１６０ｍｍ2以下とす
る。However, the coating thickness of the waterproof material is less than 1 mm,
Or, when the cross-sectional area of the water-stopping material is less than 10 mm 2 , particularly when the water-swelling water-stopping material 7 expands in the compression-fitted state of the joint, the ball-shaped portions 5a and 5b of both joints are formed. The two inner gaps 8, 8 cannot be filled with the two expanded sealing members 7a without gaps, and the predetermined water pressure resistance cannot be satisfied.
m or the cross-sectional area of the waterproof material is preferably less than 10 mm 2 . On the other hand, the upper limit of the coating thickness or cross-sectional area of the water-stopping material is difficult to apply higher than the top of the ball-joint when the water-stopping material is applied by pouring the ball-joint downward. It is limited because there is. That is, as the maximum coating amount that can be applied by this method, the thickness of the waterproof material is 10 m.
m or less, or the cross-sectional area of the waterproof material is 160 mm 2 or less.
【００３９】次に、図４〜図６に示す第２実施形態は、
図１〜図３に示した第１実施形態における、２つの内側
空隙部８、８に２つの水膨張止水材７を塗布するのに加
え、相対する玉部５ａ、５ｂと爪部６ａ、６ｂとの間に
形成される２つの外側空隙部１０、１０に、鋼矢板の打
設時に施工性を妨げない量の水膨張止水材７を塗布する
例であり、この点が第１実施形態と相違する。図４、図
５、図６は、それぞれ図１、図２、図３に対応して、中
立、圧縮、引張の嵌合状態を示す。実施形態２の他の構
成は、実施形態１と同じである。Next, the second embodiment shown in FIGS.
In the first embodiment shown in FIGS. 1 to 3, in addition to applying the two water-swelling water-stopping materials 7 to the two inner gaps 8, 8, opposing balls 5 a, 5 b and claws 6 a, This is an example in which an amount of the water-swelling water-stopping material 7 is applied to the two outer gaps 10 and 10 formed between the first and second gaps so as not to hinder the workability when the steel sheet pile is driven. It is different from the form. FIGS. 4, 5, and 6 respectively show neutral, compression, and tension fitting states corresponding to FIGS. 1, 2, and 3, respectively. Other configurations of the second embodiment are the same as those of the first embodiment.
【００４０】図４〜図６の第２実施形態においても、水
膨張止水材７は、体積膨張率が約１．２〜２０倍である
と共に、水膨張止水材７の塗布量は、乾燥後の値で、水
膨張止水材７のフラットな上面と空隙部の円弧状凹面の
最深部との厚さが１ｍｍ〜１０ｍｍ、断面積が１０ｍｍ
2〜１６０ｍｍ2である。Also in the second embodiment shown in FIGS. 4 to 6, the water-swelling water-stopping material 7 has a volume expansion rate of about 1.2 to 20 times, and the application amount of the water-swelling water-stopping material 7 is as follows. In the value after drying, the thickness of the flat upper surface of the water-swelling water-stopping material 7 and the deepest portion of the arc-shaped concave surface of the void is 1 mm to 10 mm, and the cross-sectional area is 10 mm.
2 to 160 mm 2 .
【００４１】図４〜図６に示すように、継手部１、２が
中立、圧縮、引張の何れかの嵌合状態にあるときにおい
て、２つの外側空隙部１０、１０に塗布される水膨張止
水材７の状態を順に説明する（なお、２つの内側空隙部
８、８に塗布される水膨張止水材７の状態は、図１〜図
３と同じであるので説明を省略する）。As shown in FIGS. 4 to 6, when the joints 1 and 2 are in a neutral, compression, or tension fitting state, the water expansion applied to the two outer gaps 10 and 10 is performed. The states of the water-stopping material 7 will be described in order (note that the state of the water-swelling water-stopping material 7 applied to the two inner gaps 8 is the same as that in FIGS. .
【００４２】図４に示す両継手部１、２の爪部６ａ、６
ｂの先端１１が、相手側の玉部５ａ、５ｂの頚部外側１
２に当接している中立の嵌合状態において、２つの外側
空隙部１０、１０に水膨張止水材７が斜線で示す位置ま
で塗布されている。図４の例では、水膨張止水材７は、
外側空隙部１０、１０の円弧状凹面の最深部と水膨張止
水材のフラットな上面までの厚さ（ｔ1）が２ｍｍ、断
面積２０ｍｍ2が示されている。The claws 6a, 6 of the joints 1, 2 shown in FIG.
b is located on the outside 1 of the neck of the opposing ball portions 5a, 5b.
In the neutral fitting state in contact with 2, the water-swelling and water-stopping material 7 is applied to the two outer gap portions 10 and 10 up to the position shown by oblique lines. In the example of FIG.
The thickness (t 1 ) from the deepest part of the arcuate concave surfaces of the outer voids 10 and 10 to the flat upper surface of the water-swelling water-stopping material is 2 mm, and the cross-sectional area is 20 mm 2 .
【００４３】図５に示す玉部５ａ、５ｂの端部が、相手
側の玉部５ａ、５ｂの頚部内側１３に当接している圧縮
の嵌合状態において、２つの外側空隙部１０、１０に水
膨張止水材７が斜線で示す位置まで塗布されている。図
５の例では、水膨張止水材７は、外側空隙部１０、１０
の円弧状凹面の最深部と水膨張止水材のフラットな上面
までの厚さ（ｔ1）が１ｍｍ、断面積１０ｍｍ2が示され
ている。In the compression fitting state in which the end portions of the ball portions 5a and 5b shown in FIG. 5 are in contact with the inner neck portions 13 of the mating ball portions 5a and 5b, the two outer gap portions 10 and 10 are engaged. The water-swelling water-stopping material 7 is applied up to the position shown by oblique lines. In the example of FIG. 5, the water-swelling water-stopping material 7 is
The thickness (t 1 ) from the deepest part of the arc-shaped concave surface to the flat upper surface of the water-swelling waterproof material is 1 mm, and the cross-sectional area is 10 mm 2 .
【００４４】図６に示す爪部６ａ、６ｂの先端１１が、
相手側の玉部５ａ、５ｂの頚部外側１２に当接している
引張の嵌合状態において、２つの外側空隙部１０、１０
に水膨張止水材７が斜線で示す位置まで塗布されてい
る。図６の例では、水膨張止水材７は、外側空隙部１
０、１０の円弧状凹面の最深部と水膨張止水材のフラッ
トな上面までの厚さ（ｔ1）が２ｍｍ、断面積２０ｍｍ2
が示されている。The tips 11 of the claws 6a and 6b shown in FIG.
In the state of tension fitting in contact with the neck outer side 12 of the opposing ball portions 5a, 5b, the two outer gap portions 10, 10
Is applied to the position shown by the diagonal lines. In the example of FIG. 6, the water-swelling water-stopping material 7 is
The thickness (t 1 ) between the deepest part of the arcuate concave surface of 0 and 10 and the flat upper surface of the water-swelling water-stopping material is 2 mm, and the cross-sectional area is 20 mm 2
It is shown.
【００４５】図４〜図６に示されるように、外側空隙部
１０、１０に塗布される水膨張止水材７はごく少量であ
るので、継手部１、２が中立、圧縮、引張の何れの嵌合
状態においても、水膨張止水材７のフラットな上面と玉
部５ａ、５ｂの端部との間には若干の間隙が存在してお
り、この嵌合状態で直線形鋼矢板を打設するとき、当該
水膨張止水材７が玉部５ａ、５ｂの端部に当たる可能性
が少ないので、嵌合継手内空部の嵌合余裕を浸食しな
い。As shown in FIGS. 4 to 6, the amount of the water-swelling and water-stopping material 7 applied to the outer gaps 10 and 10 is very small. Even in the fitting state, there is a slight gap between the flat upper surface of the water-swelling and water-stopping material 7 and the ends of the balls 5a and 5b. At the time of casting, there is little possibility that the water-swelling water-stopping material 7 hits the ends of the balls 5a, 5b, so that the fitting margin in the inner space of the fitting joint is not eroded.
【００４６】したがって、図４〜図６の第２実施形態で
は、中立、圧縮、引張の嵌合位置において、止水継手構
造を介して、直線形鋼矢板を数十メートルに渡って打設
して山留め連続壁を構築したとき、地盤１４側の入口
（Ａ）から、空間１５側の水道出口（Ｂ）まで、略Ｓ字
形の嵌合継手内空部を通って水が浸出するとき、２つの
外側空隙部１０、１０を膨張して閉塞する膨張後シール
材７ａで止められるのは勿論であるが、万一、入口
（Ａ）側の膨張後シール材７ａを通り抜けたときは、さ
らに、２つの内側空隙部８、８を閉塞する膨張後シール
材７ａで止められることになる。Accordingly, in the second embodiment shown in FIGS. 4 to 6, a straight steel sheet pile is cast over several tens of meters through the water-tight joint structure at the neutral, compression, and tension fitting positions. When water is leached from the entrance (A) on the ground 14 side to the water outlet (B) on the space 15 side through the inside space of the substantially S-shaped fitting joint, Of course, it is stopped by the post-expansion sealing material 7a that expands and closes the two outer gaps 10, 10. However, if it passes through the post-expansion sealing material 7a on the inlet (A) side, it is further stopped. It is stopped by the sealing material 7a after expansion, which closes the two inner gaps 8,8.
【００４７】さらに、水は２つの内側空隙部８、８を膨
張して閉塞する膨張後シール材７ａによって、完全にシ
ールされるが、それでも、万一、これを通り抜けたとき
は、さらに、出口（Ｂ）側の膨張後シール材７ａで止め
られ、結果、入口（Ａ）側から出口（Ｂ）の間におい
て、略Ｓ字形の嵌合継手内空部を通って浸出する水は、
２つの内側空隙部８、８を膨張して閉塞する膨張後シー
ル材７ａと、２つの外側空隙部１０、１０を膨張して閉
塞する膨張後シール材７ａとの合計４箇所でせき止めら
れるので、図４〜図６の継手の止水構造による止水作用
は完全となる。Further, the water is completely sealed by the expanded sealing material 7a which expands and closes the two inner gaps 8, 8. However, if the water passes through the sealing material 7a, the outlet is further increased. The water leached through the substantially S-shaped fitting joint inner space between the inlet (A) side and the outlet (B) is stopped by the sealing material 7a after the expansion on the (B) side.
Since the inflated sealing material 7a that expands and closes the two inner gaps 8 and 8 and the inflated sealing material 7a that expands and closes the two outer gaps 10 and 10 are damped at a total of four places. The water stopping action by the water stopping structure of the joint of FIGS. 4 to 6 is complete.
【００４８】すなわち、外側空隙部１０、１０と内側空
隙部８、８を膨張して閉塞する膨張後シール材７ａを水
が通り抜けるのは、通常は、膨張後シール材７ａと継手
部接合内面との間で、鋼矢板の長手方向全長の何れかの
箇所に部分的に１つ又は複数の隙間が何らかの原因で存
在することによるのが普通である。そして、仮に、外側
空隙部１０、１０を閉塞する膨張後シール材７ａのみで
止水継手が構成されている場合には、水道の入口（Ａ）
側と出口（Ｂ）の外側空隙部１０、１０を閉塞するそれ
ぞれの膨張後シール材７ａに、鋼製矢板の長手方向にず
れた位置であっても、隙間が存在する限り、水は入口
（Ａ）側からこの隙間を通じて出口（Ｂ）側へ通り抜け
る。これは２つの外側空隙部１０、１０を閉塞する膨張
後シール材７ａ同士が互いに離れて配置されており、膨
張時互いに圧接し合うような配置間隔になく、膨張後シ
ール材７ａ同士の隙間が長手方向の水道となることによ
る。That is, the water that normally passes through the expanded sealing material 7a, which expands and closes the outer voids 10, 10 and the inner voids 8, 8, is formed between the expanded sealing material 7a and the joint inner surface. Usually, one or a plurality of gaps are partially present at some point along the entire length of the steel sheet pile in the longitudinal direction. If the water-stop joint is constituted only by the expanded sealing material 7a that closes the outer gaps 10, 10, the water inlet (A)
As long as there is a gap in the longitudinal direction of the steel sheet pile, the water flows into the inlet (even at the position shifted in the longitudinal direction of the steel sheet pile) in each of the expanded sealing members 7a closing the outer gaps 10 and 10 of the side and the outlet (B). From the A) side, it passes through the gap to the exit (B) side. This is because the seal members 7a after expansion which close the two outer gaps 10 and 10 are arranged apart from each other, and are not arranged at intervals such that they are in pressure contact with each other during expansion. This is due to the longitudinal water supply.
【００４９】しかるに、外側空隙部１０、１０を閉塞す
るそれぞれの膨張後シール材７ａに加えて、内側空隙部
８、８を閉塞する膨張後シール材７ａを設けた場合、こ
の内側空隙部８、８を閉塞するそれぞれの膨張後シール
材７ａ同士は、膨張時、図に示すように互いに圧接し合
い、したがって、この相互圧接部２９を含み、膨張した
膨張後シール材７ａと継手部接合内面との圧接部位長が
長くなる。したがって、この内側空隙部８、８を閉塞す
るそれぞれの膨張後シール材７ａに、鋼製矢板の長手方
向にずれた位置に隙間が存在しても、２つの膨張後シー
ル材７ａが膨張一体化することでシール長が延長された
当該膨張後シール材７ａに何れかの部位で止水され、こ
の内側空隙部８、８を閉塞する２つの膨張後シール材７
ａによる止水の相乗作用が奏される。However, when an expanded sealing material 7a for closing the inner gaps 8, 8 is provided in addition to the respective expanded sealing material 7a for closing the outer gaps 10, 10, the inner gap 8, 8 When inflated, the respective expanded sealing materials 7a closing each other 8 are pressed against each other as shown in the drawing, and therefore include the mutual press-contacted portion 29, and the expanded expanded sealing material 7a and the joint inner surface are joined together. The length of the press-contact portion of the wire becomes longer. Therefore, even if there is a gap in each of the expanded seal members 7a closing the inner gap portions 8 and 8 at a position shifted in the longitudinal direction of the steel sheet pile, the two expanded seal members 7a are expanded and integrated. In this way, water is stopped at any part of the expanded sealing material 7a whose sealing length is extended, and the two expanded sealing materials 7 that close the inner gaps 8 are closed.
The synergistic action of water stoppage by a is exerted.
【００５０】本発明に係る継手止水構造の止水性を確認
すべく、試験を行ったので以下に説明する。A test was conducted to confirm the water stoppage of the joint water stop structure according to the present invention, which will be described below.
【００５１】実験は図７〜図９に示す方法で行った。す
なわち、図９に示すような平面形状に切断された継手部
１、２で、かつ上下に所定の長さに切断された継手部を
間隔をあけて平行に配置した両辺継手部２０、２０を設
け、この両辺継手部２０、２０の端部間を側板２１、２
１で水密的に連結して平面矩形枠を構成し、両辺継手部
２０、２０の端部間を側板２１、２１で水密的に連結し
た。さらに、両辺継手部２０、２０と側板２１、２１の
上下端に、両部材からなる平面矩形枠よりも一回り大き
い底板２３と上板２４を当てがい、平面矩形枠よりも外
側の部位において、この底板２３と上板２４の間を、複
数本の連結ボルト２５及びナット２６で締結して、平面
矩形枠の内部を水密的に密閉した。上板２４には２つの
圧力水注入口２７を開設し、また提げ手２８を設けてい
る。The experiment was performed by the method shown in FIGS. That is, the two-sided joints 20, 20 in which the joints 1, 2 cut into a planar shape as shown in FIG. 9 and the joints cut vertically to a predetermined length are arranged in parallel at intervals. The side plates 21, 2 are provided between the ends of the two side joint portions 20, 20.
1 to form a flat rectangular frame by watertight connection, and the side plates 21, 21 were watertightly connected between the ends of the two side joints 20, 20. Furthermore, the bottom plate 23 and the upper plate 24, which are slightly larger than the flat rectangular frame made of both members, are applied to the upper and lower ends of the two-side joint portions 20, 20 and the side plates 21, 21. The bottom plate 23 and the top plate 24 were fastened with a plurality of connection bolts 25 and nuts 26 to hermetically seal the inside of the plane rectangular frame. The upper plate 24 is provided with two pressure water inlets 27 and a hand 28.
【００５２】前記の試験装置を準備して、継手部１、２
には、、図１〜図３と同様に内側空隙部８、８に少量
の水膨張止水材７を塗布した例、、外側空隙部１０、
１０のみに少量の水膨張止水材７を塗布した例、、図
１５に示すように継手部１、２の凹部９の底に水膨張止
水材７を塗布した例について、かつ、それぞれ水膨張止
水材７を塗布量（厚み）を変化させ、さらに、中立、引
張、圧縮嵌合状態の各例につき試験した。試験には、上
板２４の圧力水注入口２７から平面矩形枠の内部に圧力
水を圧入し、注入圧力をどの値にまで上げたときに、水
密的に密閉された平面矩形枠の側面をなす継手部１、２
の嵌合接合部から浸出するかを測定した。その結果を、
下記の表１に示す。The test apparatus was prepared and the joints 1 and 2 were prepared.
In the same manner as in FIGS. 1 to 3, an example in which a small amount of the water-swelling water-stopping material 7 is applied to the inner voids 8, 8, the outer voids 10,
10 and a case where a small amount of the water-swelling waterproof material 7 is applied to the bottom of the concave portion 9 of the joints 1 and 2 as shown in FIG. The application amount (thickness) of the swelling water-stopping material 7 was changed, and further, each of the neutral, tensile, and compression fitting states was tested. In the test, pressurized water was injected into the inside of the flat rectangular frame from the pressure water injection port 27 of the upper plate 24, and when the injection pressure was increased to any value, the side of the flat rectangular frame that was watertightly closed was examined. Joint parts 1 and 2
Was determined to seep out of the fitting joint. The result is
It is shown in Table 1 below.
【００５３】[0053]
【表１】嵌合継手止水性試験方法と結果 水膨張止水材塗布後、気中養生１〜７日（乾燥するま
で）、水中養生１日。０．０２Ｍｐａステップで平面矩
形枠内の負荷水圧を上昇させ、各負荷圧で５分間保持
し、継手部からの水の漏出を調べる。 （※）試験装置最大負荷[Table 1] Water resistance test method and results of fitting joints After application of water-swelling water-stopping material, air curing 1 to 7 days (until dried), water curing 1 day. The load water pressure in the plane rectangular frame is increased in 0.02 Mpa steps, and each load pressure is maintained for 5 minutes, and leakage of water from the joint is examined. (*) Maximum load of test equipment
【００５４】表１から分かるように、Ｎｏ．１、Ｎｏ．
２、Ｎｏ．３では、図１５に示す継手部１、２の凹部９
に水膨張止水材７を塗布厚みを変化させて塗布し、かつ
中立、引張、圧縮嵌合状態で試験したが何れも×評価で
あった。Ｎｏ．４、Ｎｏ．５、Ｎｏ．６は、継手部１、
２の外側空隙部１０、１０のみに水膨張止水材７を塗布
厚みを一定で塗布し、かつ中立、引張、圧縮嵌合状態で
試験したが何れも×評価であった。As can be seen from Table 1, no. 1, No.
2, No. 3, the concave portions 9 of the joint portions 1 and 2 shown in FIG.
The water-swelling and water-stopping material 7 was applied with varying application thickness, and tested in a neutral, tensile, and compression-fitted state. No. 4, no. 5, no. 6 is a joint part 1,
The water-swelling and water-stopping material 7 was applied to only the outer gaps 10 and 10 of 2 at a constant coating thickness, and tested in a neutral, tensile, and compression-fitted state.
【００５５】さらに、Ｎｏ．７、Ｎｏ．８、Ｎｏ．９Ｎ
ｏ．１０、Ｎｏ．１１では、継手部１、２の内側空隙部
８、８のみに水膨張止水材７を塗布厚みを変化させて塗
布し、かつ中立、引張、圧縮嵌合状態で試験したが何れ
も○評価で、試験装置最大負荷でも継手部からの漏出が
なく、本発明による２つの内側空隙部８、８に少量の水
膨張止水材７を塗布することによる止水性が完璧である
ことが確認された。なお、Ｎｏ．１２では、Ｎｏ．７〜
Ｎｏ．１１と同様、継手部１、２の内側空隙部８、８の
みに水膨張止水材７を塗布したが、その塗布厚みを０．
５ｍｍとし、かつ中立嵌合状態で試験したが、塗布厚み
が薄すぎるため、最大負荷圧０．２２Ｍｐａで継手部か
らの漏出があり、×評価であった。Further, No. 7, no. 8, no. 9N
o. 10, No. In No. 11, the water-swelling and water-stopping material 7 was applied to only the inner gap portions 8 and 8 of the joint portions 1 and 2 while changing the applied thickness, and the test was performed in a neutral, tensile, and compression fitting state. It was confirmed that there was no leakage from the joint part even at the maximum load of the test apparatus, and that the water stopping performance by applying a small amount of the water-swelling water-stopping material 7 to the two inner gaps 8, 8 according to the present invention was perfect. Was. In addition, No. In No. 12, No. 7 ~
No. Similarly to 11, the water-swelling water-stopping material 7 was applied only to the inner gap portions 8 of the joint portions 1 and 2, but the applied thickness was 0.1 mm.
The test was performed in a neutral fitting state with a thickness of 5 mm. However, since the coating thickness was too thin, there was leakage from the joint at a maximum load pressure of 0.22 Mpa, and the evaluation was x.
【００５６】さらに、Ｎｏ．１３、Ｎｏ．１４、Ｎｏ．
１５では、継手部１、２の内側空隙部８、８および外側
空隙部１０、１０のそれぞれに、水膨張止水材７を塗布
厚み一定で塗布し、かつ中立、引張、圧縮嵌合状態で試
験したが、Ｎｏ．７〜Ｎｏ．１１同様に何れも○評価
で、試験装置最大負荷でも継手部からの漏出がなく、止
水性が完璧であることが確認された。Further, No. 13, No. 14, No.
In 15, the water-swelling water-stopping material 7 is applied to each of the inner gaps 8, 8 and the outer gaps 10, 10 of the joints 1, 2 at a constant coating thickness, and in a neutral, tensile, compression fitting state. Tested. 7-No. As in the case of No. 11, all the samples were evaluated as ○, and it was confirmed that there was no leakage from the joint portion even at the maximum load of the test apparatus, and that the waterproofness was perfect.
【００５７】前記から、継手部１、２の内側空隙部８、
８に、必要に応じさらに外側空隙部１０、１０にも水膨
張止水材７を鋼矢板の施工を妨げない程度の少量を塗布
させることで、優れた止水作用が奏されることが確認さ
れた。As described above, the inner gaps 8 of the joints 1 and 2
It is confirmed that by applying a small amount of the water-swelling and water-stopping material 7 to the outer gap portions 10 and 10 as necessary to such an extent as not to hinder the construction of the steel sheet pile, an excellent water-stopping effect is exhibited. Was done.
【００５８】本発明において、水膨張止水材７は、次の
（ａ） 〜（ｄ）の 機能を有するものがよい。（ａ）
吸水し、膨潤する材料、（ｂ） 吸水膨潤後に所定の材
料強度を有するもの（吸水膨潤後の材料強度が小さい
と、水圧により押し出されるため所定の材料強度が必要
となる）。（ｃ） 吸水により著るしく溶解しないも
の。（ｄ） 所定の手段により継手に一体的に設けるこ
とが可能なもの。In the present invention, the water-swelling water-stopping material 7 preferably has the following functions (a) to (d). (A)
(B) a material having a predetermined material strength after water absorption and swelling (if the material strength after water absorption and swelling is low, the material is extruded by water pressure and therefore requires a predetermined material strength). (C) Those which are not significantly dissolved by water absorption. (D) Those that can be provided integrally with the joint by predetermined means.
【００５９】前記の条件を満たす水膨張止水材７の例と
して、ウレタン系止水材（例えば特公平４−２５９９０
号公報、特開昭５９−１６６５６７号公報に開示のも
の）、又は酢酸ビニル系止水材（例えば特公昭４７−４
３６１２号公報に開示のもの）、その他に水膨潤性ゴム
などいずれも使用できる。また、これらは塗料状のもの
がよい。塗料状の止水材であると、継手部１、２間の間
隙部に流し込んだり、刷毛等の治具により塗布したりし
て、嵌合内接面に一体に設けられる。As an example of the water-swelling water-stopping material 7 satisfying the above conditions, a urethane-based water-stopping material (for example, Japanese Patent Publication No. 4-25990)
And JP-A-59-166567), or a vinyl acetate-based waterproofing material (for example, Japanese Patent Publication No. 47-4).
No. 3612) and water-swellable rubber. These are preferably in the form of paint. If the water-stopping material is in the form of paint, it is poured into the gap between the joints 1 and 2 or applied by a jig such as a brush or the like to be provided integrally with the fitting inner contact surface.
【００６０】ここまで、止水材として水膨張止水材を用
いる場合を中心にして説明してきたが、止水材の機能と
しては、継手の空隙を密接に埋め、水圧に抵抗できる機
能を有していればよく、水膨張止水材以外の止水材を採
用することもできる。具体的には、発泡性合成ゴム止水
材、発泡性ウレタン系止水材、発泡性ポリ塩化ビニル系
止水材などが列挙できる。Although the description has been given mainly of the case where the water-swelling water-stopping material is used as the water-stopping material, the function of the water-stopping material is to fill the gap of the joint closely and to resist the water pressure. Water-stopping material other than the water-swelling water-stopping material may be used. Specifically, a foamable synthetic rubber waterproofing material, a foamable urethane waterproofing material, a foamable polyvinyl chloride waterproofing material, and the like can be listed.
【００６１】本発明に係る継手止水構造は、図１０
（Ａ）、（Ｂ）、図１１（Ａ）、（Ｂ）に示す鋼矢板に
適用できる。図１０（Ａ）は、本来の直線形鋼矢板１６
を止水構造の継手部１、２で結合して連続壁を構築する
例を示し、図１０（Ｂ）は、フランジ端部に止水構造の
継手部１、２を有する両爪タイプのＨ形鋼矢板１７で連
続壁を構築する例を示す。図１１（Ａ）、（Ｂ）は、同
じく止水構造の継手部１、２に、２種類の片爪タイプの
Ｈ形鋼矢板１８、１９で連続壁を構築する例を示し、図
１１（Ａ）のＨ形鋼矢板１８は、Ｈ形鋼の一側フランジ
に直線形鋼矢板を溶接して構成する例を示し、図１１
（Ｂ）のＨ形鋼矢板１９は、ＣＴ形鋼矢板で構成する例
を示す。The joint waterproof structure according to the present invention is shown in FIG.
(A), (B), and can be applied to the steel sheet piles shown in FIGS. 11 (A) and (B). FIG. 10A shows the original straight steel sheet pile 16.
Fig. 10 (B) shows a double-claw type H having joints 1 and 2 having a water-stop structure at the end of the flange. An example in which a continuous wall is constructed with the shape steel sheet pile 17 is shown. FIGS. 11A and 11B show an example in which two types of single-claw type H-shaped steel sheet piles 18 and 19 are used to form a continuous wall in the joint portions 1 and 2 having the same water-stop structure. 11A shows an example in which the H-shaped sheet pile 18 is constructed by welding a straight steel sheet pile to one side flange of the H-shaped steel, and FIG.
(B) shows an example in which the H-shaped sheet pile 19 is formed of a CT-shaped sheet pile.
【００６２】[0062]
【発明の効果】本発明によると、次の効果がある。 直線形鋼矢板には何らの付加加工が不要であるので、
生産性と経済性に優れる。 直線形鋼矢板の両継手間に形成される２つの内側空隙
部に塗布する水膨張止水材は極めて少量の止水材でよ
く、この点でも生産性、経済性に優れる。さらに、２つ
の内側空隙部の２つの水膨張止水材が膨張時一体化する
ことによるシール長延長効果で高い耐水性能を確保でき
る。 継手部には何らの付加加工を施さないので、直線形鋼
矢板の強度を全強確保できる。 ２つの内側空隙部に塗布する水膨張止水材に加え、さ
らに、２つの外側空隙部に塗布する少量の２つ水膨張止
水材の相乗効果で一層高い耐水性能を確保できる。 ２つの内側空隙部と２つの外側空隙部に塗布される
水膨張止水材は、施工性を妨げない量でよく、したがっ
て、水膨張止水材の存在によって鋼矢板の打設時の施工
性に殆ど支障を来さない。According to the present invention, the following effects can be obtained. Since no additional processing is required for straight steel sheet piles,
Excellent productivity and economy. The water-swelling water-stopping material applied to the two inner gaps formed between the two joints of the straight steel sheet pile requires only a very small amount of water-stopping material, and this is also excellent in productivity and economy. Furthermore, high water resistance can be ensured by the effect of extending the seal length by the two water-swelling water-stopping materials of the two inner gaps being integrated when expanded. Since no additional processing is performed on the joint portion, the strength of the straight steel sheet pile can be ensured as high as possible. In addition to the water-swelling water-stopping material applied to the two inner gaps, a further small water-swelling water-stopping material applied to the two outer gaps can further secure higher water resistance performance due to a synergistic effect. The amount of the water-swelling water-stop material applied to the two inner gaps and the two outer-spacings may be an amount that does not hinder the workability. Cause almost no trouble.
【図１】本発明の第１実施形態に係る継手止水構造の中
立嵌合状態の部分平面図である。FIG. 1 is a partial plan view showing a neutral fitting state of a joint water stopping structure according to a first embodiment of the present invention.
【図２】本発明の第１実施形態に係る継手止水構造の圧
縮嵌合状態の部分平面図である。FIG. 2 is a partial plan view of the joint water stopping structure according to the first embodiment of the present invention in a compression fitting state.
【図３】本発明の第１実施形態に係る継手止水構造の引
張嵌合状態の平面図である。FIG. 3 is a plan view of the joint water-stop structure according to the first embodiment of the present invention in a tension-fit state.
【図４】本発明の第２実施形態に係る継手止水構造の中
立嵌合状態の平面図である。FIG. 4 is a plan view showing a neutral fitting state of a joint water stopping structure according to a second embodiment of the present invention.
【図５】本発明の第２実施形態に係る継手止水構造の圧
縮嵌合状態の平面図である。FIG. 5 is a plan view of a joint water blocking structure according to a second embodiment of the present invention in a compression fitting state.
【図６】本発明の第２実施形態に係る継手止水構造の引
張嵌合状態の平面図である。FIG. 6 is a plan view of a joint water-stop structure according to a second embodiment of the present invention in a tension-fit state.
【図７】本発明係る継手止水構造の止水性を試験する装
置の組立て後の平面図である。FIG. 7 is a plan view of an apparatus for testing the water stopping performance of the joint water stopping structure according to the present invention after assembly.
【図８】本発明係る継手止水構造の止水性を試験する装
置の立面図である。FIG. 8 is an elevational view of an apparatus for testing the water stopping performance of the joint water stopping structure according to the present invention.
【図９】本発明係る継手止水構造の止水性を試験する装
置の上板取付け前の平面図である。FIG. 9 is a plan view of a device for testing the water stopping performance of the joint water stopping structure according to the present invention before the upper plate is attached.
【図１０】（Ａ）、（Ｂ）は、本発明係る継手止水構造
を適用した直線形鋼矢板とＨ形鋼矢板の平面図である。FIGS. 10A and 10B are plan views of a straight steel sheet pile and an H-shaped sheet pile to which the joint waterproof structure according to the present invention is applied.
【図１１】（Ａ）、（Ｂ）は、本発明係る継手止水構造
を適用したＨ形鋼と直線形鋼矢板を組み合わせた鋼矢板
と、ＣＴ形鋼矢板の平面図である。FIGS. 11A and 11B are plan views of a steel sheet pile combining an H-section steel and a straight steel sheet pile to which the joint waterproof structure according to the present invention is applied, and a CT-type steel sheet pile.
【図１２】第１従来例に係る継手止水構造の平面図であ
る。FIG. 12 is a plan view of a joint water stopping structure according to a first conventional example.
【図１３】第２従来例に係る継手止水構造の平面図であ
る。FIG. 13 is a plan view of a joint water stopping structure according to a second conventional example.
【図１４】第３従来例に係る継手止水構造の平面図であ
る。FIG. 14 is a plan view of a joint water stopping structure according to a third conventional example.
【図１５】止水試験例として図示する継手止水構造の平
面図である。FIG. 15 is a plan view of a joint water stop structure shown as a water stop test example.
１ 継手部 ２ 継手部 ３ 凹状溝 ４ 水膨張止水材（水膨張性シール材） ５ａ 玉部 ５ｂ 玉部 ５ａ1 頂部 ５ｂ1 頂部 ５ａ2 頚部 ５ｂ2 頚部 ６ａ 爪部 ６ｂ 爪部 ７ 水膨張止水材（水膨張性シール材） ７ａ 膨張後シール材 ８ 内側空隙部 ９ 凹部 １０ 外側空隙部 １１ 先端 １２ 頚部外側 １３ 頚部内側 １４ 地盤 １５ 空間 １６ 直線形鋼矢板 １７ Ｈ形鋼矢板 １８ Ｈ形鋼矢板 １９ Ｈ形鋼矢板 ２０ 両辺継手部 ２１ 両端 ２２ 連結板 ２３ 底板 ２４ 上板 ２５ 連結ボルト ２６ ナット ２７ 圧力水注入口 ２８ 提げ手DESCRIPTION OF SYMBOLS 1 Joint part 2 Joint part 3 Concave groove 4 Water expansion waterproofing material (water-expandable sealing material) 5a Ball 5b Ball 5a 1 Top 5b 1 Top 5a 2 Neck 5b 2 Neck 6a Claw 6b Claw 6b Claw 7 Water expansion stop Water material (water-swellable sealing material) 7a Sealing material after expansion 8 Inner cavity 9 Recess 10 Outer cavity 11 Tip 12 Neck outside 13 Neck inside 14 Ground 15 Space 16 Straight steel sheet pile 17 H-shaped sheet pile 18 H-shaped steel Sheet Pile 19 H-Shaped Steel Sheet Pile 20 Both Side Joint 21 Both Ends 22 Connecting Plate 23 Bottom Plate 24 Top Plate 25 Connecting Bolt 26 Nut 27 Pressure Water Inlet 28 Supplier
───────────────────────────────────────────────────── フロントページの続き Ｆターム(参考） 2D049 EA01 EA03 EA14 FB03 FB11 FB13 FC03 FD01 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 2D049 EA01 EA03 EA14 FB03 FB11 FB13 FC03 FD01
Claims (5)
れた直線形鋼矢板の継手において、両継手の嵌め合わせ
時に両継手の玉部間に形成される２つの内側空隙部に施
工性を妨げない量の止水材を塗布することを特徴とする
直線形鋼矢板の継手止水構造。In a joint of a straight steel sheet pile having a ball portion and a claw portion formed at both ends of an arc-shaped concave portion, two joints formed between the ball portions of the two joints when the two joints are fitted together. A joint water-stop structure for straight steel sheet piles characterized by applying a water-stop material in an amount that does not hinder workability.
側空隙部に塗布する止水材に加えて、相対する玉部と爪
部との間に形成される２つの外側空隙部に施工性を妨げ
ない量の止水材を塗布することを特徴とする直線形鋼矢
板の継手止水構造。2. The construction according to claim 1, wherein in addition to the water-stopping material applied to the two inner gaps, the workability is improved in the two outer gaps formed between the opposing ball portion and the claw portion. A joint water-stop structure for straight steel sheet piles, characterized by applying an amount of water-stop material that does not hinder the joint.
に、水膨張止水材の塗布量は、乾燥後の値で、当該水膨
張止水材のフラット面と空隙部の円弧状凹面の最深部と
の厚さが１ｍｍ〜１０ｍｍ、または断面積が１０ｍｍ2
〜１６０ｍｍ2であることを特徴とする請求項１または
２記載の直線形鋼矢板の継手止水構造。3. The water-stopping material is a water-swelling water-stopping material, and a coating amount of the water-swelling water-stopping material is a value after drying, and is a circle between a flat surface and a void portion of the water-swelling water-stopping material. The thickness with the deepest part of the arc-shaped concave surface is 1 mm to 10 mm, or the cross-sectional area is 10 mm 2
3. The joint waterproofing structure for a straight steel sheet pile according to claim 1, wherein the diameter is from 160 mm 2 to 160 mm 2 .
れる止水材は、互いに圧接し合っていることを特徴とす
る請求項１〜３の何れか１項に記載の直線形鋼矢板の継
手止水構造。4. The straight steel sheet pile according to any one of claims 1 to 3, wherein the water blocking materials applied to the two inner gap portions are in pressure contact with each other. Joint water stop structure.
線形鋼矢板を、その継手部を介して水密的に連結して連
続壁としたことを特徴とする鋼矢板連続壁。5. A continuous wall of steel sheet piles, wherein a plurality of straight steel sheet piles according to any one of claims 1 to 4 are connected in a water-tight manner through joints thereof to form a continuous wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001092288A JP4340018B2 (en) | 2001-03-28 | 2001-03-28 | Joint water stop structure of straight steel sheet pile and steel sheet pile continuous wall |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001092288A JP4340018B2 (en) | 2001-03-28 | 2001-03-28 | Joint water stop structure of straight steel sheet pile and steel sheet pile continuous wall |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2002294693A true JP2002294693A (en) | 2002-10-09 |
| JP4340018B2 JP4340018B2 (en) | 2009-10-07 |
Family
ID=18946776
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001092288A Expired - Fee Related JP4340018B2 (en) | 2001-03-28 | 2001-03-28 | Joint water stop structure of straight steel sheet pile and steel sheet pile continuous wall |
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| Country | Link |
|---|---|
| JP (1) | JP4340018B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1988218A3 (en) * | 2007-05-03 | 2008-11-26 | PilePro LLC | Assembly of several bulkhead components |
| JP2010112054A (en) * | 2008-11-06 | 2010-05-20 | Giken Seisakusho Co Ltd | Water-stopping sheet pile |
| KR20200010840A (en) * | 2018-07-23 | 2020-01-31 | 주식회사 포스코 | Connector assembly and pile wall structure |
-
2001
- 2001-03-28 JP JP2001092288A patent/JP4340018B2/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1988218A3 (en) * | 2007-05-03 | 2008-11-26 | PilePro LLC | Assembly of several bulkhead components |
| JP2010112054A (en) * | 2008-11-06 | 2010-05-20 | Giken Seisakusho Co Ltd | Water-stopping sheet pile |
| KR20200010840A (en) * | 2018-07-23 | 2020-01-31 | 주식회사 포스코 | Connector assembly and pile wall structure |
| KR102119948B1 (en) * | 2018-07-23 | 2020-06-05 | 주식회사 포스코 | Connector assembly and pile wall structure |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4340018B2 (en) | 2009-10-07 |
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