JPH0219246B2 - - Google Patents
Info
- Publication number
- JPH0219246B2 JPH0219246B2 JP57060591A JP6059182A JPH0219246B2 JP H0219246 B2 JPH0219246 B2 JP H0219246B2 JP 57060591 A JP57060591 A JP 57060591A JP 6059182 A JP6059182 A JP 6059182A JP H0219246 B2 JPH0219246 B2 JP H0219246B2
- Authority
- JP
- Japan
- Prior art keywords
- sheet pile
- concrete
- groove
- pipe
- nozzle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 11
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 7
- 229910052742 iron Inorganic materials 0.000 description 4
- 241000282693 Cercopithecidae Species 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 210000001015 abdomen Anatomy 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 150000002505 iron Chemical class 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D7/00—Methods or apparatus for placing sheet pile bulkheads, piles, mouldpipes, or other moulds
- E02D7/24—Placing by using fluid jets
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
Description
【発明の詳細な説明】
この発明はコンクリート矢板の打込み方法に関
するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for driving concrete sheet piles.
従来コンクリート矢板を地中に打込む工法とし
て、ウオータージエツトを使用して打込む工法が
存在する。このような工法は平板状のコンクリー
ト矢板側面に単にパイプ及びノズルを沿わせて圧
力水をノズル先端から地盤に向けて噴出せしめ、
コンクリート矢板を地中に打込むものである。 Conventionally, there is a method of driving concrete sheet piles into the ground using a water jet. This construction method simply places a pipe and nozzle along the side of a flat concrete sheet pile and sprays pressurized water from the nozzle tip toward the ground.
This involves driving concrete sheet piles into the ground.
このようなコンクリート矢板打込み工法におい
て問題となるのはコンクリート矢板は鋼矢板等と
比較してある程度の厚さを有しており、且つ幅広
であることである。すなわち、コンクリート矢板
に単にパイプ，ノズルを側面に沿わせるだけでは
圧力水はコンクリート矢板直下からズレてしまう
こととなり、更に単一のパイプを取付けたのでは
コンクリート矢板の幅方向全長にわたつて地盤を
圧力水によつて掘削できないこととなる。 A problem with such a concrete sheet pile driving method is that the concrete sheet pile has a certain thickness and is wider than steel sheet piles or the like. In other words, if the pipes and nozzles are simply placed along the side of the concrete sheet pile, the pressure water will deviate from directly below the concrete sheet pile, and if a single pipe is installed, the ground will be spread over the entire width of the concrete sheet pile. Excavation will not be possible due to the pressure water.
この発明は以上のような欠点を改善するために
なされたもので、コンクリート矢板の直下及び幅
方向略全長を圧力水によつて掘削することが可能
なコンクリート矢板の打込み方法を提供すること
を目的とするものである。 This invention was made in order to improve the above-mentioned drawbacks, and an object of the present invention is to provide a method for driving concrete sheet piles that allows excavation directly below the concrete sheet piles and approximately the entire length in the width direction using pressurized water. That is.
更にコンクリート矢板の強度を低下させること
なく、作業性の向上を図ることのできるコンクリ
ート矢板の打込み方法を提供することを目的とす
る。 Furthermore, it is an object of the present invention to provide a method for driving concrete sheet piles that can improve workability without reducing the strength of the concrete sheet piles.
次に図示する実施例に基づき発明を詳細に説明
する。 Next, the invention will be explained in detail based on the illustrated embodiments.
この発明にかかるコンクリート矢板の打込み方
法は、コンクリート矢板の一表面の上端より幾ら
か下より下方に溝を形成し、パイプ複数本を該溝
底に沿わして溝内に収納し、パイプ下端のノズル
を矢板下端より幾らか突出せしめ、ノズルより圧
力水を噴出して地盤を掘削することを特徴とす
る。 The method of driving a concrete sheet pile according to the present invention is to form a groove downward from a point slightly below the upper end of one surface of the concrete sheet pile, store a plurality of pipes in the groove along the bottom of the groove, and then The feature is that the nozzle is made to protrude somewhat from the lower end of the sheet pile, and the ground is excavated by jetting out pressurized water from the nozzle.
コンクリート矢板１は方形状の平板である。コ
ンクリート矢板１の左右端上下方向全長には一方
に継手突出部１１、他方には継手凹部１２を形成
する。また下端には切欠き１３を形成し矢板１下
端を細巾とする。 The concrete sheet pile 1 is a rectangular flat plate. A joint protrusion 11 is formed on one side and a joint recess 12 is formed on the other side over the entire length of the left and right ends of the concrete sheet pile 1 in the vertical direction. Moreover, a notch 13 is formed at the lower end to make the lower end of the sheet pile 1 narrow.
コンクリート矢板１一表面に形成する溝２は矢
板１上端から幾らか下より矢板１下端まで上下方
向に形成する。溝２は第１図に示すように単一で
あつてもよいし、第２図に示すように複数本であ
つてもよい。また、溝２の断面形状は第１図に示
すように台形状であつてもよいが、第３図及び第
４図に示すごとく溝２底面を曲面とすれば、矢板
１の打込み時における矢板１に作用する外力の応
力集中をさけることができ、矢板の局部破壊を防
止することができる。 The grooves 2 formed on one surface of the concrete sheet pile 1 are formed in the vertical direction from slightly below the upper end of the sheet pile 1 to the lower end of the sheet pile 1. The groove 2 may be a single groove as shown in FIG. 1, or may be a plurality of grooves as shown in FIG. Further, the cross-sectional shape of the groove 2 may be trapezoidal as shown in FIG. 1, but if the bottom surface of the groove 2 is a curved surface as shown in FIGS. It is possible to avoid stress concentration of external force acting on the sheet pile 1, and local destruction of the sheet pile can be prevented.
以上のように溝２を形成した場合、溝２を形成
した分だけ矢板１の軽量化が図れ、作業性の向上
が図れる。また、溝２は上端にまで形成されてい
ないため、矢板１上端部は従来の矢板１と同様の
厚さを有しており、モンケン等による打撃時の矢
板１頭部の破損を防止する。更に、溝２を形成し
ない部分は腹部１４となつて矢板１全体としての
耐力の低下をきたすことがない。 When the grooves 2 are formed as described above, the weight of the sheet pile 1 can be reduced by the amount by which the grooves 2 are formed, and workability can be improved. In addition, since the groove 2 is not formed all the way to the upper end, the upper end of the sheet pile 1 has the same thickness as the conventional sheet pile 1, which prevents the head of the sheet pile 1 from being damaged when hit by a monkey or the like. Further, the portion where the groove 2 is not formed becomes the abdomen 14 and the yield strength of the sheet pile 1 as a whole does not decrease.
溝２内に収納するパイプ３は鋼管パイプを使用
し、このパイプ３複数本を連結体３２によりハシ
ゴ状に組んだものである。パイプ３各々は矢板１
の溝底に沿わして溝２内に収納し、パイプ３下端
のノズル３１は矢板１の下端より幾らか突出せし
める。パイプ３は連結体３２により、一体に構成
してあるため、取付け、取外し作業は容易であ
る。 The pipes 3 housed in the groove 2 are made of steel pipes, and a plurality of these pipes 3 are assembled in a ladder shape using a connecting body 32. 3 pipes each has 1 sheet pile
The pipe 3 is housed in the groove 2 along the groove bottom, and the nozzle 31 at the lower end of the pipe 3 is made to project somewhat from the lower end of the sheet pile 1. Since the pipe 3 is integrally formed by the connecting body 32, it is easy to attach and detach the pipe 3.
以上のようにパイプ３を取付けた矢板１を地中
に打込む場合、地上に矢板１の厚さだけ間隔をあ
けて導枠４を２本平行にして設置し、この間に矢
板１を上方から吊り降して位置せしめる。 When the sheet pile 1 with the pipe 3 attached is driven into the ground as described above, two guiding frames 4 are installed in parallel on the ground with an interval equal to the thickness of the sheet pile 1, and between these, the sheet pile 1 is inserted from above. Lift it down and position it.
この状態で圧力水をノズル３１から噴出せしめ
地盤の掘削を行ない矢板１の打込みを開始する。
ノズル３１は矢板１の直下に圧力水を噴出するた
め矢板１を垂直に打込むことが可能となる。また
パイプ３は溝２内に収納されるため、打込み作業
の支障となることがない。 In this state, pressurized water is ejected from the nozzle 31 to excavate the ground and start driving the sheet pile 1.
Since the nozzle 31 spouts pressurized water directly below the sheet pile 1, it becomes possible to drive the sheet pile 1 vertically. Further, since the pipe 3 is housed in the groove 2, it does not interfere with the driving operation.
以上のように本発明にかかるコンクリート矢板
の打込み方法は、ウオータージエツトを使用して
打込む方法にかかるものであるが、モンケン等に
よる打撃、あるいはバイブロハンマによる振動を
並用して行うことが可能である。 As described above, the method of driving concrete sheet piles according to the present invention involves driving using a water jet, but it is also possible to use impact with a hammer or the like or vibration with a vibratory hammer. be.
バイブロハンマによる振動を併用して込みを行
う場合は第１図および第５図に示すごとく、矢板
１表面上端に鉄板５を固定し、この鉄板５を一緒
にバイブロチヤツクによりつかめば、矢板が破損
することがない。第５図に示す実施例は溝２上
に、溝２より浅い凹部５１を形成し、この中に鉄
板５を固定した例である。また場合によつては、
矢板１両表面に鉄板５を固定すれば更に強度は向
上する。 When using vibration with a vibratory hammer in combination, as shown in Figs. 1 and 5, fix the iron plate 5 to the upper end of the surface of the sheet pile 1, and grasp this iron plate 5 together with the vibro chuck to prevent the sheet pile from being damaged. There is no. The embodiment shown in FIG. 5 is an example in which a recess 51 shallower than the groove 2 is formed on the groove 2, and an iron plate 5 is fixed therein. In some cases,
If iron plates 5 are fixed to both surfaces of the sheet pile 1, the strength will be further improved.
この発明にかかるコンクリート矢板の打込み方
法は以上のような構成を有するため、以下の効果
を得ることができる。 Since the concrete sheet pile driving method according to the present invention has the above configuration, the following effects can be obtained.
パイプおよびノズルを矢板に形成した溝底に
沿わして溝内に収納したため、圧力水を矢板直
下より突出したノズルにより噴出することが可
能となり、矢板の進行方向がズレることがな
い。 Since the pipe and nozzle are housed in the groove along the bottom of the groove formed in the sheet pile, it is possible to eject pressurized water from the nozzle protruding from directly below the sheet pile, and the traveling direction of the sheet pile does not deviate.
パイプを複数本矢板に取付けたため、幅広の
矢板の幅方向略全長の地盤を掘削可能となり、
矢板の打込みが容易となる。 By attaching multiple pipes to the sheet pile, it is possible to excavate the ground approximately the entire length of the wide sheet pile in the width direction.
It becomes easier to drive the sheet piles.
コンクリート矢板に溝を形成したため重量の
軽減が図れ、作業性の向上が図れる。 Grooves are formed in the concrete sheet piles to reduce weight and improve workability.
溝はコンクリート矢板の上端から幾らか下よ
り下方に形成したため、矢板の上部はモンケン
等による打撃によつても破損することがない。 Since the groove is formed slightly below the upper end of the concrete sheet pile, the upper part of the concrete sheet pile will not be damaged even by being hit by a monkey gun or the like.
第１図はこの発明にかかるコンクリート矢板の
打込み方法に使用する矢板およびパイプの斜視
図、第２図は施工状態の縦断面図、第３図は矢板
の他の実施例の側面図、第４図は矢板の他の実施
例の横断面図、第５図は他の実施例の斜視図であ
る。
１……矢板、２……溝、３……パイプ、４……
導枠。
1 is a perspective view of a sheet pile and a pipe used in the concrete sheet pile driving method according to the present invention, FIG. The figure is a cross-sectional view of another embodiment of the sheet pile, and FIG. 5 is a perspective view of another embodiment. 1... Sheet pile, 2... Groove, 3... Pipe, 4...
Guide frame.
Claims (1)
を噴出して地盤を掘削するコンクリート矢板の打
込み方法において、 コンクリート矢板の一表面の上端より幾らか下
より下方に溝を形成し、パイプ複数本を該溝底に
沿わして溝内に収納し、パイプ下端のノズルを矢
板下端より幾らか突出せしめ、ノズルより圧力水
を噴出して地盤を掘削することを特徴とするコン
クリート矢板の打込み方法。[Scope of Claims] 1. A concrete sheet pile driving method in which a pipe is installed along a concrete sheet pile and the ground is excavated by ejecting pressurized water, in which a groove is formed downward from some distance below the upper end of one surface of the concrete sheet pile. A concrete method characterized in that a plurality of pipes are housed in the trench along the bottom of the trench, a nozzle at the lower end of the pipe protrudes somewhat from the lower end of the sheet pile, and the ground is excavated by jetting pressurized water from the nozzle. How to drive sheet piles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6059182A JPS58178724A (en) | 1982-04-12 | 1982-04-12 | Driving of concrete sheet pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6059182A JPS58178724A (en) | 1982-04-12 | 1982-04-12 | Driving of concrete sheet pile |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58178724A JPS58178724A (en) | 1983-10-19 |
| JPH0219246B2 true JPH0219246B2 (en) | 1990-05-01 |
Family
ID=13146628
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6059182A Granted JPS58178724A (en) | 1982-04-12 | 1982-04-12 | Driving of concrete sheet pile |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58178724A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60219323A (en) * | 1984-04-13 | 1985-11-02 | Seikichi Yamamoto | Pressing-into method of pile |
| JPS61152042U (en) * | 1985-03-13 | 1986-09-19 | ||
| JP2657180B2 (en) * | 1994-04-18 | 1997-09-24 | 西鉄建機株式会社 | Concrete sheet pile having water guide holes and driving method of the sheet pile |
| JP2009167734A (en) * | 2008-01-18 | 2009-07-30 | Ohmoto Gumi Co Ltd | Method and device for intruding reinforcement steel plate into ground in seismic strengthening construction |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5664447U (en) * | 1979-10-25 | 1981-05-30 |
-
1982
- 1982-04-12 JP JP6059182A patent/JPS58178724A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58178724A (en) | 1983-10-19 |
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