JPH05331854A - Joint structure and driving method for steel pipe sheet pile - Google Patents
Joint structure and driving method for steel pipe sheet pileInfo
- Publication number
- JPH05331854A JPH05331854A JP13926192A JP13926192A JPH05331854A JP H05331854 A JPH05331854 A JP H05331854A JP 13926192 A JP13926192 A JP 13926192A JP 13926192 A JP13926192 A JP 13926192A JP H05331854 A JPH05331854 A JP H05331854A
- Authority
- JP
- Japan
- Prior art keywords
- joint
- steel pipe
- sheet pile
- pipe sheet
- mortar
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Bulkheads Adapted To Foundation Construction (AREA)
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は、鋼管矢板基礎に利用
する鋼管矢板の継手構造および打設方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a steel pipe sheet pile joint structure and a driving method used for a steel pipe sheet pile foundation.
【０００２】[0002]
【従来の技術】鋼管矢板は例えばＬ―Ｌ型，Ｐ―Ｐ型，
Ｌ―Ｔ型といった継手を有し、この継手をガイドとして
互いに隣接すべき各鋼管矢板を繋ぐように打ち進んで基
礎壁を形成する。2. Description of the Related Art Steel pipe sheet piles are, for example, LL type, PP type,
A joint such as an LT type is provided, and using this joint as a guide, the steel pipe sheet piles that should be adjacent to each other are struck to form a foundation wall.
【０００３】この場合において、各鋼管矢板の継手は先
端（下端）が何ら閉塞されておらず開放状態であるた
め、上記のように地中に打設する過程で、継手内に土砂
が進入して詰まり、止水効果等を目的としてなされる、
後工程のモルタルの打設を実施不能または困難にしてし
まう。In this case, since the tip (lower end) of each steel pipe sheet pile is not closed at all and is in an open state, earth and sand enter the joint in the process of driving into the ground as described above. It is made for the purpose of blocking, water blocking effect, etc.
This makes it impossible or difficult to place the mortar in the subsequent step.
【０００４】一方、かかる継手内の土砂の目詰りを取除
くために、鋼管矢板の打設後その土砂を水ジェットやボ
ーリングにより掘削，除去することが行われている。On the other hand, in order to remove the clogging of the earth and sand in the joint, the earth and sand are excavated and removed by a water jet or boring after the steel pipe sheet pile is laid.
【０００５】[0005]
【発明が解決しようとする課題】しかしながら、かかる
従来の水ジェットやボーリングによる継手内土砂の掘削
では、地盤が硬く締まっている場合や鋼管矢板の施工精
度が悪い場合などでは、その掘削に多大な困難，労力を
伴い、場合によって掘削不能で、所期の止水効果が得ら
れるようなモルタルの打設を実現できないなどの問題点
があった。However, in the conventional excavation of the earth and sand in the joint by the water jet or boring, when the ground is hard and tight or the construction accuracy of the steel pipe sheet pile is poor, the excavation is very difficult. There was a problem that it was difficult and labor-intensive, and in some cases it was not possible to excavate, and it was not possible to place mortar that would achieve the desired water-stopping effect.
【０００６】この発明は上記のような従来の問題点に着
目してなされたものであり、鋼管矢板の打設を容易化
し、かつ打設後の継手内土砂の掘削作業を不要にできる
鋼管矢板の継手構造および打設方法を得ることを目的と
する。The present invention has been made by paying attention to the above-mentioned conventional problems, and can facilitate the driving of a steel pipe sheet pile and can eliminate the need for excavating the earth and sand in the joint after the driving. The purpose is to obtain a joint structure and a driving method.
【０００７】[0007]
【課題を解決するための手段】請求項１の発明に係る鋼
管矢板の継手構造は、第１の継手を有して先行打設され
る第１の鋼管矢板と、上記第１の継手に係合しながらガ
イドされる第２の継手を有して、後行打設される第２の
鋼管矢板とを備え、上記第１の継手または第２の継手の
一部または全部を水ジェット噴出用またはモルタル注入
用のパイプとしたものである。A joint structure for a steel pipe sheet pile according to a first aspect of the present invention relates to a first steel pipe sheet pile preliminarily driven with a first joint and the first joint. A second steel pipe sheet pile having a second joint that is guided while being fitted, and a second steel pipe sheet pile that is installed in a trailing direction, and a part or all of the first joint or the second joint is used for jetting a water jet. Alternatively, it is a pipe for mortar injection.
【０００８】また、請求項２の発明に係る鋼管継手の打
設方法は、第１の継手を有する第１の鋼管矢板を先行打
設した後、上記第１の継手に第２の継手をガイドさせな
がら後行打設を行うものにおいて、上記第１の継手また
は第２の継手の一部または全部を構成するパイプから上
記打設時に掘削用の水ジェットを噴出して上記継手内の
掘削を行ない、該掘削後に上記パイプからモルタルを注
出するようにしたものである。Further, in the method for driving a steel pipe joint according to a second aspect of the invention, after first driving the first steel pipe sheet pile having the first joint, the second joint is guided to the first joint. In the case where the subsequent casting is performed while the above-mentioned operation is performed, a water jet for excavation is ejected from the pipe forming part or all of the first joint or the second joint to excavate the inside of the joint. The mortar is poured out from the pipe after the excavation.
【０００９】[0009]
【作用】請求項１の発明におけるパイプは、第１の鋼管
矢板または第２の鋼管矢板の打設時には水ジェットを噴
射させて、これらの第１，第２の鋼管矢板の継手内また
は継手外の土砂を掘削するように機能し、特に、第１の
鋼管矢板の先行打設で水ジェットの噴射を行った場合に
は、継手内掘削を不要にして、後行打設の容易化，迅速
化を図れるようにする。また、そのパイプを利用して、
継手内のモルタルの打設を容易化する。In the pipe according to the first aspect of the present invention, a water jet is jetted at the time of driving the first steel pipe sheet pile or the second steel pipe sheet pile, and the pipe is inside or outside the joint of the first and second steel pipe sheet piles. Function to excavate the earth and sand, and especially when the water jet is jetted by the prior placement of the first steel pipe sheet pile, the excavation in the joint is unnecessary, and the subsequent placement is easy and quick. So that it can be realized. Also, using that pipe,
It facilitates the placement of mortar in the joint.
【００１０】また、請求項２の発明におけるパイプから
の水ジェットの噴出は、第１の鋼管矢板の打設を容易化
するとともに鋼管矢板打設後の継手内の掘削を不要に
し、また、このパイプを利用してモルタルを注出するこ
とで、継手内を充分な止水効果が得られるように隙間な
くそのモルタルを充填可能にする。The jet of the water jet from the pipe according to the second aspect of the present invention facilitates the driving of the first steel pipe sheet pile and eliminates the need for excavating the joint after the steel pipe sheet pile is driven. By using a pipe to pour out the mortar, it is possible to fill the mortar in the joint without gaps so that a sufficient water blocking effect can be obtained.
【００１１】[0011]
【実施例】以下、この発明の一実施例を図について説明
する。図１において、１，２は隣接する一対の第１の鋼
管矢板および第２の鋼管矢板であり、これらの一側面に
は切欠３を持った切欠筒継手としての第１の継手４が長
手方向に突設され、また他側面には突条５および上記切
欠３の幅より大きい外径のパイプ６からなる第２の継手
７が長手方向に一体に設けられている。なお、図では第
１および第２の鋼管矢板の各一部のみを示してあるた
め、隣接する各鋼管矢板１，２の対応部位では、第１の
継手４と第２の継手７が対向することとなる。なお、こ
のパイプ６を円形断面のほか四角形断面の角パイプとす
ることもできる。DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. In FIG. 1, reference numerals 1 and 2 denote a pair of a first steel pipe sheet pile and a second steel pipe sheet pile which are adjacent to each other, and a first joint 4 as a notched tubular joint having a notch 3 on one side surface thereof in a longitudinal direction. And a second joint 7 is integrally provided in the longitudinal direction on the other side surface. The second joint 7 is composed of a ridge 5 and a pipe 6 having an outer diameter larger than the width of the notch 3. Since only a part of each of the first and second steel pipe sheet piles is shown in the drawing, the first joint 4 and the second joint 7 face each other at corresponding portions of the adjacent steel pipe sheet piles 1 and 2. It will be. The pipe 6 may be a square pipe having a rectangular cross section as well as a circular cross section.
【００１２】従って、かかる第１，第２の鋼管矢板１，
２を用いて鋼管矢板基礎を構築するには、まず、第１の
鋼管矢板１を地盤に先行打設する。このとき、第１の継
手４内には土砂が進入し、詰まる。次に、第１の鋼管矢
板１の第１の継手４の筒内にパイプ６が入ってガイドさ
れるように、第２の鋼管矢板２を第１の鋼管矢板１に隣
接して後行打設する。そして、この後行打設に並行して
パイプ６内に高圧水を送り込んで、そのパイプ６の下端
に水ジェットを発生させ、上記第１の継手４内に詰った
土砂を掘削する。Therefore, the first and second steel pipe sheet piles 1,
In order to construct a steel pipe sheet pile foundation using No. 2, first, the first steel pipe sheet pile 1 is pre-cast into the ground. At this time, earth and sand enter the first joint 4 and become clogged. Next, the second steel pipe sheet pile 2 is adjoined to the first steel pipe sheet pile 1 so as to be guided so that the pipe 6 is guided in the cylinder of the first joint 4 of the first steel pipe sheet pile 1. Set up. Then, in parallel with this subsequent casting, high-pressure water is sent into the pipe 6, a water jet is generated at the lower end of the pipe 6, and the earth and sand clogged in the first joint 4 is excavated.
【００１３】すなわち、この第２の鋼管矢板２の打ち込
みに並行してパイプ６からジェット水を噴出すること
で、この鋼管継手７の打設を容易化し、第１の鋼管継手
４内の土砂を効率よくしかも確実に掘削除去でき、従っ
て、後のモルタル打設（注入）を確実かつ完全に実施で
きる。That is, by jetting jet water from the pipe 6 in parallel with the driving of the second steel pipe sheet pile 2, the driving of the steel pipe joint 7 is facilitated, and the earth and sand in the first steel pipe joint 4 are removed. It is possible to excavate and remove efficiently and surely, so that the subsequent mortar placing (injection) can be surely and completely performed.
【００１４】図２はこの発明の他の実施例を示す。これ
は継手どうしの係合およびガイドを確実化かつ安定化す
るため、パイプ６を断面Ｔ字状の突条８に設けて第２継
手７としたものであり、そのパイプ６による機能，効果
は上記実施例と同様であり、鋼管打設を容易化し、継手
内土砂の除去を容易化できる。FIG. 2 shows another embodiment of the present invention. In order to ensure and stabilize the engagement and guide between the joints, the pipe 6 is provided on the ridge 8 having a T-shaped cross section to form the second joint 7. The function and effect of the pipe 6 are This is the same as the above-mentioned embodiment, and can facilitate the casting of the steel pipe and the removal of the earth and sand in the joint.
【００１５】図３はこの発明のさらに他の実施例を示
す。これは第１，第２の鋼管矢板１，２に突設された第
１の継手９を、一対のＬ字状チャンネルを９ａ，９ｂを
対向配置したものとし、第２の継手１０を、これらのＬ
字状チャンネル９ａ，９ｂにより略挾持される状態にて
ガイドされるような、ひし形などの四角形断面状のパイ
プとしたものである。この場合にも、各継手９，１０に
よるガイドを円滑にし、上記同様のパイプによる機能，
効果が得られる。FIG. 3 shows still another embodiment of the present invention. This assumes that the first joint 9 projecting from the first and second steel pipe sheet piles 1 and 2 has a pair of L-shaped channels 9a and 9b facing each other, and the second joint 10 is L
It is a pipe having a quadrangular cross section such as a rhombus which is guided by being substantially held by the character-shaped channels 9a and 9b. Also in this case, the guide by the joints 9 and 10 is made smooth, and the function by the pipe similar to the above,
The effect is obtained.
【００１６】また、図４はこの発明の別の実施例を示
す。これは第１，第２の鋼管矢板１，２に突設された第
１の継手９を、図３に示したものと同じく、一対のＬ字
状チャンネル９ａ，９ｂを対向配置したものとし、第２
の継手１１を、上記Ｌ字状チャンネル９ａ，９ｂにより
略挾持される状態にてガイドされるような、２本のパイ
プ１２およびこれらに一体の突条１３とから構成したも
のである。この実施例の場合にも、上記各実施例と同様
の機能，効果が得られる。FIG. 4 shows another embodiment of the present invention. This assumes that the first joint 9 projecting from the first and second steel pipe sheet piles 1 and 2 has a pair of L-shaped channels 9a and 9b arranged opposite to each other, as in the case shown in FIG. Second
The joint 11 is composed of two pipes 12 and ridges 13 integral with them, which are guided by the L-shaped channels 9a and 9b while being held substantially. Also in the case of this embodiment, the same functions and effects as those of the above respective embodiments can be obtained.
【００１７】図５はこの発明のさらに別の実施例を示
す。これは、第１の鋼管矢板１における第１の継手４の
下部内面に、図６に示すようなジェット水を噴射するた
めのノズル１４を溶接などにより取り付けて、このノズ
ル１４に第１の継手４外の上方からパイプ１５端をねじ
部１６にてねじ込んであり、一方、第２の鋼管矢板２に
はＴ字状断面の第２の継手１７を取り付けて、この継手
１７を第１の継手４に対して図示のようにガイド可能に
係合させたものである。FIG. 5 shows another embodiment of the present invention. This is because the nozzle 14 for injecting jet water as shown in FIG. 6 is attached by welding or the like to the inner surface of the lower portion of the first joint 4 in the first steel pipe sheet pile 1, and the first joint is attached to the nozzle 14. 4 the end of the pipe 15 is screwed in from above from the outside with a threaded portion 16, while a second joint 17 having a T-shaped cross section is attached to the second steel pipe sheet pile 2 and the joint 17 is attached to the first joint. 4 is engaged in a guideable manner as shown in FIG.
【００１８】かかる構成の鋼管矢板の継手構造では、上
記パイプ１５に高圧の水を送り込みながら、先ず、第１
の鋼管矢板１を先行打設する。このため、上記高圧の水
はノズル１４にて更に加圧されて下方向へ噴出され、こ
のノズル１４対応部の地盤である土砂を掘削し、その第
１の鋼管矢板１の打設を容易化するとともに、その第１
の継手４内への土砂の進入およびこれによる詰りを防止
する。In the joint structure of the steel pipe sheet pile having such a structure, first, while feeding high-pressure water to the pipe 15, first,
The steel pipe sheet pile 1 of is placed in advance. Therefore, the high-pressure water is further pressurized by the nozzle 14 and ejected downward, excavating the earth and sand which is the ground of the nozzle 14 corresponding portion, and facilitates the placement of the first steel pipe sheet pile 1. And the first
Of sand and sand from entering the joint 4 and clogging due to this.
【００１９】この結果、この第１の継手４内にＴ字状断
面の第２の継手１７を係合およびガイドさせて、上記第
２の継手を後行打設する作業が容易，迅速となり、しか
も、これらの各継手４，１７間へのモルタルの注入を隙
間なく完全に実施できるようになる。なお、このモルタ
ル注入（打設）後には、パイプ１５をノズル１４からね
じ込みを解除して回収し、再利用することができる。As a result, the operation of engaging and guiding the second joint 17 having a T-shaped cross section in the first joint 4 to post-mount the second joint becomes easy and quick, Moreover, it becomes possible to completely inject the mortar between the joints 4 and 17 without any gap. After the injection (placing) of the mortar, the pipe 15 can be unthreaded from the nozzle 14 to be recovered and reused.
【００２０】[0020]
【発明の効果】以上のように、請求項１の発明によれ
ば、第１の継手を有して先行打設される第１の鋼管矢板
と、上記第１の継手に係合しながらガイドされる第２の
継手を有して、後行打設される第２の鋼管矢板とを備
え、上記第１の継手または第２の継手の一部または全部
を水ジェット噴出用またはモルタル注入用のパイプとし
たので、上記パイプに高圧水を通すことにより、第２の
鋼管矢板の後行打設を容易化，効率化でき、また、その
パイプをモルタル注入用として用いれば継手内に隙間を
生じさせない状態にてモルタルの打設を行うことがで
き、従って、各鋼管矢板間の止水効果が高まるという利
点が得られる。As described above, according to the first aspect of the present invention, the first steel pipe sheet pile having the first joint and which is pre-cast, and the guide while engaging with the first joint. And a second steel pipe sheet pile which is subsequently cast, and a part or all of the first joint or the second joint is for jetting water jet or for injecting mortar. Since it is a pipe of the above, by passing high pressure water through the above pipe, it is possible to facilitate and streamline the subsequent casting of the second steel pipe sheet pile, and if that pipe is used for mortar injection, a gap will be created in the joint. The mortar can be cast in a state where it does not occur, and therefore, there is an advantage that the water blocking effect between the steel pipe sheet piles is enhanced.
【００２１】また、請求項２の発明によれば、第１の継
手を有する第１の鋼管矢板を先行打設した後、上記第１
の継手に第２の継手をガイドさせながら後行打設を行う
ものにおいて、上記第１の継手または第２の継手の一部
または全部を構成するパイプから、上記打設時に掘削用
の水ジェットを噴出し、その後に同じパイプを利用して
モルタルを注出するようにしたので、各鋼管矢板打設後
に改めて継手内の掘削をするという面倒な作業を不要に
でき、また、モルタル打設を継手内に略完全な状態で充
填，打設できるという効果が得られる。According to the second aspect of the invention, the first steel pipe sheet pile having the first joint is first driven, and then the first steel pipe sheet pile is formed.
In which the second joint is guided by the second joint, and a water jet for excavation at the time of the placing is made from a pipe that constitutes a part or all of the first joint or the second joint. Since the mortar was spouted and then the same pipe was used to pour out the mortar, it is possible to eliminate the troublesome work of excavating the joint again after each steel pipe sheet pile has been laid. The effect is that the joint can be filled and placed in a nearly complete state.
【図１】この発明の一実施例による鋼管矢板の継手構造
を示す要部の平面図である。FIG. 1 is a plan view of essential parts showing a joint structure for a steel pipe sheet pile according to an embodiment of the present invention.
【図２】この発明の他の実施例による鋼管矢板の継手構
造を示す要部の平面図である。FIG. 2 is a plan view of essential parts showing a joint structure for a steel pipe sheet pile according to another embodiment of the present invention.
【図３】この発明のさらに他の実施例による鋼管矢板の
継手構造を示す要部の平面図である。FIG. 3 is a plan view of essential parts showing a joint structure for a steel pipe sheet pile according to still another embodiment of the present invention.
【図４】この発明の別の実施例による鋼管矢板の継手構
造を示す要部の平面図である。FIG. 4 is a plan view of essential parts showing a joint structure for a steel pipe sheet pile according to another embodiment of the present invention.
【図５】この発明のさらに別の実施例による鋼管矢板の
継手構造を示す要部の平面図である。FIG. 5 is a plan view of essential parts showing a joint structure for a steel pipe sheet pile according to still another embodiment of the present invention.
【図６】図５に示す鋼管矢板の継手構造を詳細に示す断
面図である。FIG. 6 is a cross-sectional view showing in detail the joint structure of the steel pipe sheet pile shown in FIG.
１ 第１の鋼管矢板 ２ 第２の鋼管矢板 ４，９ 第１の継手 ６，１２，１５ パイプ ７，１１，１７ 第２の継手 １０ パイプ（第２の継手） 1 1st steel pipe sheet pile 2 2nd steel pipe sheet pile 4,9 1st joint 6,12,15 pipe 7,11,17 2nd joint 10 pipe (2nd joint)
Claims (2)
の鋼管矢板と、上記第１の継手に係合しながらガイドさ
れる第２の継手を有して、後行打設される第２の鋼管矢
板とを備えた鋼管矢板の継手構造において、上記第１の
継手または第２の継手の一部または全部を水ジェット噴
出用またはモルタル注入用のパイプとしたことを特徴と
する鋼管矢板の継手構造。1. A first precast structure having a first joint.
In the joint structure of the steel pipe sheet pile, the steel pipe sheet pile and the second joint pipe having a second joint guided while being engaged with the first joint, and a second steel pipe sheet pile to be subsequently driven are provided. A joint structure for a steel pipe sheet pile, wherein a part or all of the first joint or the second joint is a pipe for jetting a water jet or for injecting mortar.
行打設した後、上記第１の継手に第２の継手をガイドさ
せながら後行打設を行う鋼管矢板の打設方法において、
上記第１の継手または第２の継手の一部または全部を構
成するパイプから上記打設時に掘削用の水ジェットを噴
出して上記継手内の掘削を行ない、該掘削後に上記パイ
プからモルタルを上記継手内に注出するようにしたこと
を特徴とする鋼管矢板の打設方法。2. A method for driving a steel pipe sheet pile, comprising first driving a first steel pipe sheet pile having a first joint, and then performing trailing driving while guiding the second joint to the first joint. ,
When a water jet for excavation is ejected from the pipe constituting a part or all of the first joint or the second joint to excavate the inside of the joint, the mortar is extracted from the pipe after the excavation. A method for driving a steel pipe sheet pile, which is characterized in that it is poured into a joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13926192A JPH05331854A (en) | 1992-05-29 | 1992-05-29 | Joint structure and driving method for steel pipe sheet pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13926192A JPH05331854A (en) | 1992-05-29 | 1992-05-29 | Joint structure and driving method for steel pipe sheet pile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH05331854A true JPH05331854A (en) | 1993-12-14 |
Family
ID=15241172
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13926192A Pending JPH05331854A (en) | 1992-05-29 | 1992-05-29 | Joint structure and driving method for steel pipe sheet pile |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH05331854A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006193965A (en) * | 2005-01-13 | 2006-07-27 | Ohbayashi Corp | Construction method for joint part of impervious material, and joint structure |
| JP2009293273A (en) * | 2008-06-05 | 2009-12-17 | Taisei Corp | Steel pipe sheet pile joint structure, steel pipe sheet pile foundation, and method of coupling steel pipe sheet pile |
| WO2010032485A1 (en) * | 2008-09-18 | 2010-03-25 | 新日本製鐵株式会社 | Steel pipe pile, joint structure of steel pipe sheet pile, and wall structure and method for drawing steel pipe sheet pile |
| CN102535439A (en) * | 2011-11-24 | 2012-07-04 | 东南大学 | Steel sheet pile joint structure |
-
1992
- 1992-05-29 JP JP13926192A patent/JPH05331854A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006193965A (en) * | 2005-01-13 | 2006-07-27 | Ohbayashi Corp | Construction method for joint part of impervious material, and joint structure |
| JP4516847B2 (en) * | 2005-01-13 | 2010-08-04 | 株式会社大林組 | Construction method and joint structure of joint part of water shielding material |
| JP2009293273A (en) * | 2008-06-05 | 2009-12-17 | Taisei Corp | Steel pipe sheet pile joint structure, steel pipe sheet pile foundation, and method of coupling steel pipe sheet pile |
| WO2010032485A1 (en) * | 2008-09-18 | 2010-03-25 | 新日本製鐵株式会社 | Steel pipe pile, joint structure of steel pipe sheet pile, and wall structure and method for drawing steel pipe sheet pile |
| JP4719315B2 (en) * | 2008-09-18 | 2011-07-06 | 新日本製鐵株式会社 | Steel pipe sheet pile, steel pipe sheet pile joint structure, wall structure, and steel pipe sheet pile drawing method |
| CN102535439A (en) * | 2011-11-24 | 2012-07-04 | 东南大学 | Steel sheet pile joint structure |
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