JPH03228914A - Driving method for steel-pipe pile - Google Patents
Driving method for steel-pipe pileInfo
- Publication number
- JPH03228914A JPH03228914A JP2441190A JP2441190A JPH03228914A JP H03228914 A JPH03228914 A JP H03228914A JP 2441190 A JP2441190 A JP 2441190A JP 2441190 A JP2441190 A JP 2441190A JP H03228914 A JPH03228914 A JP H03228914A
- Authority
- JP
- Japan
- Prior art keywords
- pile
- steel pipe
- pipe pile
- driving
- pipe
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 39
- 239000010959 steel Substances 0.000 claims description 39
- 239000000463 material Substances 0.000 claims description 17
- 238000004873 anchoring Methods 0.000 claims 2
- 238000005553 drilling Methods 0.000 abstract description 5
- 238000010276 construction Methods 0.000 description 10
- 230000003014 reinforcing effect Effects 0.000 description 3
- 239000002689 soil Substances 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Piles And Underground Anchors (AREA)
- Revetment (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
この発明は、例えば海上構造物を支持するための基礎杭
として用いられる鋼管杭の打設工法に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a method for driving steel pipe piles used as foundation piles for supporting offshore structures, for example.
（従来の技術）
海上構造物の基礎杭として鋼管杭を用いる場合、築造場
所の海底地盤の土質性状に応じて杭径、杭長、打設本数
が計画される。(Prior Art) When using steel pipe piles as foundation piles for offshore structures, the pile diameter, pile length, and number of piles to be driven are planned depending on the soil properties of the submarine ground at the construction site.
ところで、−船釣に杭は、その周面摩擦力だけで引抜に
対抗しているので、引抜力に対する抵抗力が小さい。By the way, since the piles used in boat fishing resist pulling out only by the frictional force on their circumferential surface, their resistance to pulling out force is small.
したがって、引抜力に対する抵抗が必要な場合には、施
工に当って鋼管杭の杭長を十分に確保し、打設時に地盤
の深部まで到達させれば、十分な引抜耐力が得られる。Therefore, if resistance to pull-out force is required, sufficient pull-out strength can be obtained by ensuring a sufficient length of the steel pipe pile during construction and allowing the pile to reach deep into the ground during driving.
しかしながら、特に、海上構造物の基礎杭として用いた
場合には、打設深度に加えて海底面から海面までの高さ
や、海面から構造物までの高さも確保する必要があり、
また杭打船など施工機械の大きさなどによっても杭長は
制約を受ける。However, especially when used as foundation piles for offshore structures, in addition to the driving depth, it is also necessary to ensure the height from the seabed to the sea surface and the height from the sea surface to the structure.
Pile length is also limited by the size of construction equipment such as pile driving boats.
このため、実際には地盤内に対して十分な深さまで打込
めない場合が多い。For this reason, in reality, it is often not possible to drive to a sufficient depth into the ground.
そこで、従来では杭長を確保できない分を補うために杭
本数を多くすることで対処していた。Conventionally, the solution was to increase the number of piles to compensate for the lack of sufficient pile length.
（発明が解決しようとする課題）
しかし、杭本数を多くした場合には、打設作業工数が多
くなり、また、杭上部の構造物との接合箇所も増し、構
造物側のコンクリート量も増すなどの欠点があった。(Problem to be solved by the invention) However, when the number of piles is increased, the number of man-hours for driving increases, and the number of joints between the upper part of the pile and the structure also increases, which increases the amount of concrete on the structure side. There were drawbacks such as.
この発明は以上の問題を解決し、ケーシング打設などの
作業を要することなく、打設された鋼管杭を簡単な工程
によりアンカ一定着でき、少ない打設本数で十分な引抜
抵抗力が得られるようにした鋼管杭の打設工法を提供す
ることを目的としている。This invention solves the above problems, and allows the driven steel pipe piles to be fixedly anchored through a simple process without requiring work such as driving casings, and provides sufficient pull-out resistance with a small number of piles. The purpose of this study is to provide a method for driving steel pipe piles.
（課題を解決するための手段）
前記目的を達成するため、この発明は、鋼管杭の外周に
、杭先端より突出する複数のガイド管を平行に接合し、
地盤に対する前記鋼管杭の打設作業終了後、前記ガイド
管内にアンカー材を挿入し、このアンカー材の一端を前
記鋼管杭の下部地盤に定着するとともに、その他端を上
部構造物に定着するものである。(Means for Solving the Problem) In order to achieve the above object, the present invention connects a plurality of guide pipes projecting from the tip of the pile in parallel to the outer periphery of a steel pipe pile,
After the work of driving the steel pipe pile into the ground is completed, an anchor material is inserted into the guide pipe, one end of this anchor material is fixed to the ground below the steel pipe pile, and the other end is fixed to the superstructure. be.
（作 用）
以上の構成によれば、鋼管杭の外周に地盤と上部構造物
との間に定着したアンカー材が設けられるの、で、押込
力に対して鋼管杭が対抗するとともに、引抜力に対して
アンカー材が対抗する。(Function) According to the above configuration, the anchor material fixed between the ground and the superstructure is provided on the outer periphery of the steel pipe pile, so that the steel pipe pile counters the pushing force and also reduces the pulling force. The anchor material opposes this.
（実 施 例）
以下、この発明の一実施例を図面を用いて詳細に説明す
る。(Example) Hereinafter, an example of the present invention will be described in detail using the drawings.
第１図、第２図はこの発明工法に用いられる鋼管杭を示
している。Figures 1 and 2 show steel pipe piles used in the construction method of this invention.
図における鋼管杭１の外周には、１８０°間隔で一対の
ガイド管２が長手方向に沿って平行に配置され、溶接に
よって一体に接合されている。A pair of guide tubes 2 are arranged in parallel along the longitudinal direction at 180° intervals on the outer periphery of the steel pipe pile 1 in the figure, and are integrally joined by welding.
鋼管杭１の径及び杭長は、これが打設される海底地盤の
土質性状や、施工上の制約等によって設定されるもので
あり、これの先端内周には十文字形をした補強リブ３が
設けられている。The diameter and pile length of the steel pipe pile 1 are determined by the soil properties of the submarine ground where it will be driven, construction constraints, etc., and a cross-shaped reinforcing rib 3 is provided on the inner periphery of the tip. It is provided.
前記各ガイド管２は、鋼管からなるもので、その上端部
を鋼管杭１の頂部より実寸で１．０００關程度低い位置
に位置させ、ハンマーの打撃による変形などを防止して
いる。Each of the guide tubes 2 is made of a steel pipe, and its upper end is located at a position approximately 1.000 degrees lower in actual size than the top of the steel pipe pile 1 to prevent deformation due to hammer blows.
またガイド管２の先端部２ａは、鋼管杭１の先端より実
寸で５００ ｍｍ程度突出し、後述する穿孔時において
、撹拌による鋼管杭１の先端の空洞化などを防止し、か
つ斜めに切欠かれることにより打設時における貫入抵抗
を削減している。In addition, the tip 2a of the guide tube 2 protrudes from the tip of the steel pipe pile 1 by about 500 mm in actual size to prevent the tip of the steel pipe pile 1 from becoming hollow due to stirring during drilling, which will be described later, and to prevent the tip from being cut diagonally. This reduces penetration resistance during pouring.
さらに、この先端部２ａの内側は、前記補強リブ３に下
部を接合した三角形状の補強リブ４に接合され、打設圧
力による先端部２ａの座屈を防止している。Furthermore, the inner side of the tip 2a is joined to a triangular reinforcing rib 4 whose lower portion is joined to the reinforcing rib 3, thereby preventing buckling of the tip 2a due to driving pressure.
なお、前記ガイド管２の径は、穿孔用ビットの挿通及び
固結材の注入等を考慮して実寸で１６２゜５〜２１６．
３關の範囲の径に設定される。The diameter of the guide tube 2 is 162°5 to 216° in actual size, taking into account the insertion of the drilling bit and the injection of the solidifying material.
The diameter is set to a range of three angles.
以上の構成の鋼管杭１は、第３図に示すように杭打船の
打撃ハンマーなどによって海底地盤Ｅの所定深度まで打
込まれる。所定数の鋼管杭１の打設終了後、鋼管杭１の
上部に海上構造物の躯体５が築造される。The steel pipe pile 1 having the above structure is driven into the seabed E to a predetermined depth by a hammer of a pile driving ship, as shown in FIG. After driving a predetermined number of steel pipe piles 1, a frame 5 of the offshore structure is constructed on top of the steel pipe piles 1.
なお、前記各鋼管杭１は、水平力に対する抵抗力を与え
るために、躯体５に対してハ字状に対向すべ（傾斜状態
に打設される。In addition, each of the steel pipe piles 1 is driven in a V-shape facing the building frame 5 (in an inclined state) in order to provide resistance against horizontal force.
また、躯体５の築造後あるいはその足場の構築後、前記
ガイド管２の上部から穿孔用のビットを導入し、ガイド
管２の先端に突出させて地盤Ｅを穿孔し、鋼棒などのア
ンカー材７をガイド管２に挿入したのち、ガイド管２を
介して固結材を注入し、固結材が硬化することにより、
アンカー材７の下端が鋼管杭１の下方地盤に定着される
。Further, after constructing the frame 5 or constructing its scaffolding, a drilling bit is introduced from the upper part of the guide pipe 2, protrudes from the tip of the guide pipe 2, and perforates the ground E, and anchor material such as a steel rod is inserted. 7 is inserted into the guide tube 2, a caking material is injected through the guide tube 2, and the caking material hardens.
The lower end of the anchor material 7 is fixed to the ground below the steel pipe pile 1.
そして、アンカー材７の下端の定着が完了すると、アン
カー材７の上端は、躯体５側に定着され、このときアン
カー材７には、張力が導入される。When the fixing of the lower end of the anchor material 7 is completed, the upper end of the anchor material 7 is fixed to the frame 5 side, and at this time, tension is introduced into the anchor material 7.
したがって、施工完了状態では鋼管杭１の打設深度に対
応して得られる押込抵抗力と、前記アンカー材７の引抜
抵抗力との複合により鋼管杭１の長さをそれ程大きくし
なくても引張力が増大する。Therefore, in the completed construction state, the combination of the push-in resistance force obtained corresponding to the driving depth of the steel pipe pile 1 and the pull-out resistance force of the anchor material 7 allows the steel pipe pile 1 to be pulled out evenly without increasing its length. Power increases.
なお、この実施例では鋼管杭１−本当り二本のガイド管
２を設け、アンカー材７を２本づつ設けるようにしたが
、それ以上多く設ければさらに引抜抵抗力を増すことが
できる。In this embodiment, two guide pipes 2 are provided per steel pipe pile 1, and two anchor materials 7 are provided each, but if more than that are provided, the pulling resistance can be further increased.
また、この発明は海上構造物の基礎杭だけでなく、鋼管
杭を用いた種々の構造物の施工に適用できることも勿論
である。Furthermore, it goes without saying that the present invention can be applied not only to foundation piles for offshore structures, but also to the construction of various structures using steel pipe piles.
（発明の効果）
以上実施例によって詳細に説明したように、この発明に
よる鋼管杭の打設工法にあっては、ガイド管をガイドと
して鋼管杭の側部にアンカー材を構築できるので、従来
のケーシングの打設等によりアンカ一部を造成する工法
に比べて容易に実施できる。(Effects of the Invention) As explained in detail through the embodiments above, in the steel pipe pile driving method according to the present invention, the anchor material can be constructed on the side of the steel pipe pile using the guide pipe as a guide. This method is easier to implement than the construction method in which a portion of the anchor is created by pouring a casing, etc.
またこの工法により、同一長さの鋼管杭を打設した場合
における引抜に対する抵抗力が増し、計画強度に対する
杭打ち本数が削減することができ、過度に長い鋼管杭を
用いなくてもよくなるので、杭打船、その他杭打ち用機
械の小型化を図ることができ、経済性、工期面ともに従
来に比べて有利となる。In addition, this construction method increases the resistance to uprooting when steel pipe piles of the same length are driven, reduces the number of piles driven for the planned strength, and eliminates the need to use excessively long steel pipe piles. It is possible to downsize pile driving vessels and other pile driving machines, which is advantageous compared to conventional methods in terms of both economy and construction period.
第１図はこの発明に用いられる鋼管杭の側面図、第２図
は同鋼管杭の底部を示す斜視図、第３図。
第４図は同鋼管杭を用いた打設工法を示す説明図である
。Fig. 1 is a side view of a steel pipe pile used in the present invention, Fig. 2 is a perspective view showing the bottom of the steel pipe pile, and Fig. 3 is a side view of the steel pipe pile used in the present invention. FIG. 4 is an explanatory diagram showing the driving method using the same steel pipe pile.
Claims (1)
平行に接合し、地盤に対する前記鋼管杭の打設作業終了
後、前記ガイド管内にアンカー材を挿入し、このアンカ
ー材の一端を前記鋼管杭の下部地盤に定着するとともに
、その他端を上部構造物に定着することを特徴とする鋼
管杭の打設工法。A plurality of guide pipes protruding from the tip of the pile are joined in parallel to the outer periphery of the steel pipe pile, and after completing the driving work of the steel pipe pile into the ground, an anchor material is inserted into the guide pipe, and one end of this anchor material is connected to the A steel pipe pile driving method characterized by anchoring the lower part of the steel pipe pile to the ground and anchoring the other end to the superstructure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2024411A JPH07103559B2 (en) | 1990-02-05 | 1990-02-05 | Construction method for steel pipe piles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2024411A JPH07103559B2 (en) | 1990-02-05 | 1990-02-05 | Construction method for steel pipe piles |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03228914A true JPH03228914A (en) | 1991-10-09 |
| JPH07103559B2 JPH07103559B2 (en) | 1995-11-08 |
Family
ID=12137418
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2024411A Expired - Lifetime JPH07103559B2 (en) | 1990-02-05 | 1990-02-05 | Construction method for steel pipe piles |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07103559B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002348861A (en) * | 2001-05-28 | 2002-12-04 | Daiwa House Ind Co Ltd | Steel component for steel pile |
| JP2018076661A (en) * | 2016-11-07 | 2018-05-17 | 新日鐵住金株式会社 | Device, structure and method to prevent self-sinking of steel pipe pile |
| KR102014125B1 (en) * | 2019-06-03 | 2019-08-26 | (주)효창이엔지 | 3-axis seismic pile structure and method |
| CN114008293A (en) * | 2019-07-02 | 2022-02-01 | 株式会社豫成海洋技术 | Drilling device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5521135A (en) * | 1978-08-01 | 1980-02-15 | Seiko Instr & Electronics Ltd | Integrated circuit |
| JPS62268423A (en) * | 1986-05-16 | 1987-11-21 | Kajima Corp | Construction work of underground pile used in common for earth anchor |
| JPS6349765A (en) * | 1986-08-20 | 1988-03-02 | Mitsubishi Chem Ind Ltd | Electrophotographic sensitive body |
-
1990
- 1990-02-05 JP JP2024411A patent/JPH07103559B2/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5521135A (en) * | 1978-08-01 | 1980-02-15 | Seiko Instr & Electronics Ltd | Integrated circuit |
| JPS62268423A (en) * | 1986-05-16 | 1987-11-21 | Kajima Corp | Construction work of underground pile used in common for earth anchor |
| JPS6349765A (en) * | 1986-08-20 | 1988-03-02 | Mitsubishi Chem Ind Ltd | Electrophotographic sensitive body |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002348861A (en) * | 2001-05-28 | 2002-12-04 | Daiwa House Ind Co Ltd | Steel component for steel pile |
| JP2018076661A (en) * | 2016-11-07 | 2018-05-17 | 新日鐵住金株式会社 | Device, structure and method to prevent self-sinking of steel pipe pile |
| KR102014125B1 (en) * | 2019-06-03 | 2019-08-26 | (주)효창이엔지 | 3-axis seismic pile structure and method |
| CN114008293A (en) * | 2019-07-02 | 2022-02-01 | 株式会社豫成海洋技术 | Drilling device |
| CN114008293B (en) * | 2019-07-02 | 2024-03-12 | 株式会社豫成海洋技术 | Drilling device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH07103559B2 (en) | 1995-11-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH03228914A (en) | Driving method for steel-pipe pile | |
| JPH11222861A (en) | Execution of retaining wall to existing banking and retaining wall executed by the same | |
| JP3129676B2 (en) | Piling columns in building structures using piles as pillars | |
| JP5028781B2 (en) | Reinforcing and reinforcing method for existing quay and its reinforcing structure | |
| JP2003027462A (en) | Construction method of underground continuous wall, and construction method of underground structure | |
| JP2697558B2 (en) | Independent mountain retaining wall method | |
| JP2617122B2 (en) | Yamadome construction method | |
| JP3020187B2 (en) | Embedded pile method and concrete pile | |
| JPH09296427A (en) | Structure in water area and construction method thereof | |
| JPH0626042A (en) | Process of rotationally driving h-shape steel bar and h-shape steel bar used therefor | |
| JPS6128774B2 (en) | ||
| JPH0559215B2 (en) | ||
| JPS6039812B2 (en) | Steel sheet pile construction method | |
| JP3084498B2 (en) | Steel pipe pile head treatment method | |
| JP3325550B2 (en) | Pile construction equipment and pile construction method | |
| JPH10220162A (en) | Immersion body having projecting body on outer peripheral surface and division ring which constitutes the sam immersion body | |
| JP2548636B2 (en) | Water area structure and its construction method | |
| JPS6245370B2 (en) | ||
| JPS63181813A (en) | Construction of steel tubular sheet pile | |
| JPS62236922A (en) | Method of reinforcing sheet pile-wall structure | |
| JPS63247423A (en) | Underground continuous wall usable as structure base and its construction | |
| JP2002088777A (en) | Method for connecting jacket structure to pile, and pipe expanding apparatus for use in the method | |
| JP2512157B2 (en) | Reinforcement method for soft ground | |
| JP3052021B2 (en) | Underground beam erection method | |
| JPS6349765B2 (en) |