JPH03286022A - Method for driving joint pile - Google Patents
Method for driving joint pileInfo
- Publication number
- JPH03286022A JPH03286022A JP8292290A JP8292290A JPH03286022A JP H03286022 A JPH03286022 A JP H03286022A JP 8292290 A JP8292290 A JP 8292290A JP 8292290 A JP8292290 A JP 8292290A JP H03286022 A JPH03286022 A JP H03286022A
- Authority
- JP
- Japan
- Prior art keywords
- pile
- ground
- knotted
- joint
- vibration
- 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
- 238000000034 method Methods 0.000 title claims description 26
- 239000000945 filler Substances 0.000 claims abstract description 7
- 239000004568 cement Substances 0.000 claims abstract description 5
- 239000004576 sand Substances 0.000 claims abstract description 5
- 239000000203 mixture Substances 0.000 claims description 4
- 239000004575 stone Substances 0.000 claims description 3
- 239000011363 dried mixture Substances 0.000 abstract 1
- 238000010276 construction Methods 0.000 description 15
- 230000000694 effects Effects 0.000 description 7
- 238000005056 compaction Methods 0.000 description 5
- 238000005553 drilling Methods 0.000 description 2
- 230000002706 hydrostatic effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009527 percussion Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Landscapes
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、胴部から側方に突出する節部が軸方向に沿っ
て適宜の間隔を在して設けられた節杭を特定の態様をも
って地盤に打込むようにした節杭打込工法に関する。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a joint pile in which joint portions projecting laterally from the body are provided at appropriate intervals along the axial direction. This invention relates to a knotted pile driving method in which jointed piles are driven into the ground.
従来、節杭を地盤に打込むための工法として大゛別する
、と2通りの方法が採られている。Conventionally, two methods have been used to drive knotted piles into the ground.
その一つは、節杭をそれが打込まれるべき地盤上に立て
、その節杭に自重であるいは強制的に加速されて落下す
るハンマーによる打撃力を与えて該節杭を地盤に打込む
打撃工法であり、他の一つは、節杭が打込まれるべき地
盤に予め節杭の胴部より大で節部より小なる口径の縦穴
を穿設しておき、節杭をその縦穴に静圧で圧入して打込
む静圧圧入工法である。One method is to set a knotted pile on the ground into which it is to be driven, and drive the knotted pile into the ground by applying a striking force to the knotted pile by a hammer that falls under its own weight or is forcibly accelerated. The other method is to drill a vertical hole in the ground into which the knotted pile is to be driven, with a diameter larger than the body of the knotted pile and smaller than the knot, and then insert the knotted pile into the vertical hole. This is a static pressure press-in method in which the material is pressed into place using pressure.
このような工法が採られる際には、節杭の打込の進行に
伴い、節部により節杭の周囲の地盤が締め固められると
ともに、地上において節杭の周囲に砂とセメントとの混
合物、砂利あるいは砕石等の充填物を供給すると節杭の
節部の下方への移動によりその充填物が地盤中に引き込
まれて節杭の周囲で密に締め固められる。When such a construction method is adopted, as the joint piles are driven, the ground around the joint piles is compacted by the joints, and a mixture of sand and cement is mixed around the joint piles on the ground. When a filler such as gravel or crushed stone is supplied, the filler is drawn into the ground by the downward movement of the joint of the knot pile and compacted tightly around the joint pile.
しかしながら、上述の工法のうち、打撃工法が採られる
場合には、必然的に大なる騒音と振動が伴われることに
なり、かかる工法の施工場所及び時間に制限を受けるこ
とが多く、また、静圧圧入工法が採られる場合には、騒
音・振動は許容範囲に抑えられるものの、地盤及び充填
物の締め固め効果を打撃工法並みにすることが難しく、
しかも、予め縦穴を穿設しておく必要があるのでその施
工には手間と時間を要し、施工効率の面で問題がある。However, among the above-mentioned construction methods, when the impact construction method is adopted, it is inevitably accompanied by large noise and vibration, and there are often restrictions on the construction location and time of such construction method, and there are also When the press-in method is used, noise and vibration can be suppressed to an acceptable level, but it is difficult to achieve the same level of compaction effect for the ground and filling as with the percussion method.
Moreover, since it is necessary to drill a vertical hole in advance, the construction requires time and effort, which poses a problem in terms of construction efficiency.
かかる点に鑑み本発明は、騒音・振動を可及的に抑制し
たもとで、地盤及び充填物の締め固め効果の向上を図る
ことができるとともに、効率良く節杭を地盤に打込むこ
とができるようにされた節杭打込工法を提供することを
目的とする。In view of these points, the present invention makes it possible to improve the compaction effect of the ground and filler while suppressing noise and vibration as much as possible, and also to efficiently drive knotted piles into the ground. The purpose of this invention is to provide a knotted pile driving method that makes it possible to perform joint pile driving.
上述の目的を解消すべく、本願の発明者等が鋭意研究を
重ねたところ、節杭を比較的高い周波数とある振幅をも
って上下方向に振動させつつ地盤中に打込むようにする
ことで上述の目的を略遺戒できることを見出した。In order to solve the above-mentioned purpose, the inventors of the present application conducted extensive research and found that by driving the joint pile into the ground while vibrating it vertically with a relatively high frequency and a certain amplitude, the above-mentioned object could be solved. I discovered that it is possible to vaguely forget the purpose.
本発明に係る節杭打込工法は、かかる新知見及びそれに
基づく考察に立脚してなされたもので、基本的には、節
杭の形態及びそれが打込まれるべき地盤の状態等に基づ
いて定められる周波数及び振幅をもった上下方向の振動
を節杭に与えつつ、該節杭を地盤に打込むようにされ、
この場合、周波数及び振幅は実験あるいは実際の施工時
に得られたデータ等に基づいて設定することができる。The knotted pile driving method according to the present invention was developed based on such new knowledge and consideration based on it, and is basically based on the form of the knotted pile and the condition of the ground in which it is to be driven. The node pile is driven into the ground while applying vertical vibration with a predetermined frequency and amplitude to the node pile,
In this case, the frequency and amplitude can be set based on experiments or data obtained during actual construction.
また、節杭打込時に、節杭の振動と各節部の下方への移
動とを利用して、節杭と地盤との間に砂とセメントとの
混合物、砂利あるいは砕石等の充填物を充填することが
望ましく、節杭の打込に際しては、すでに開発されてい
る、振動周波数及び振幅が可変の振動杭打機を用いるこ
とができる。In addition, when driving knotted piles, we use the vibration of the knotted pile and the downward movement of each joint to insert filler such as a mixture of sand and cement, gravel, or crushed stone between the knotted pile and the ground. It is desirable to fill the piles, and when driving knotted piles, it is possible to use an already developed vibratory pile driver with variable vibration frequency and amplitude.
上述の如くの構成を有する本発明に係る節杭打込工法に
よれば、打撃工法に比して騒音・振動の発生が抑制され
、しかも、高周波数の振動は地盤を伝播し難いので、施
工場所及び時間の制限を打撃工法に比して小さくするこ
とができる。According to the knotted pile driving method of the present invention having the above-mentioned configuration, the generation of noise and vibration is suppressed compared to the hammer method, and high-frequency vibrations are difficult to propagate through the ground, making construction easier. Restrictions on location and time can be reduced compared to hammer construction methods.
また、比較的高い周波数で節杭が振動せしめられるので
、地盤及び充填物の締め固め効果が打撃工法及び静圧圧
入工法のいずれよりも高く得られる。Furthermore, since the joint piles are vibrated at a relatively high frequency, the compaction effect of the ground and filling can be obtained higher than either the impact method or the hydrostatic press-in method.
さらに、既存の振動杭打機を用いることができるので、
その施工には手間と時間がさほどかからず、施工効率が
格段に向上する。Furthermore, existing vibrating pile drivers can be used, so
Its construction does not take much time and effort, and construction efficiency is greatly improved.
以下、本発明の実施例を添付図面を参照しつつ説明する
。Embodiments of the present invention will be described below with reference to the accompanying drawings.
本発明に係る節杭打込工法の一例によって打込まれる節
杭1は、添付図面に示されに如く、断面円形の胴部1か
ら側方に突出する節部3が軸方向に沿って一定の間隔を
在して設けられており、この節杭1を地盤5に打込むに
際しては、まず、振動周波数及び振幅が可変とされた既
存の振動杭打機10のチャック12に節杭1を拘持させ
た状態で地盤上に配するとともに、その節杭1の周囲の
地面上に砂とセメントとの乾燥。As shown in the attached drawing, the knotted pile 1 driven by an example of the knotted pile driving method according to the present invention has knotted portions 3 that protrude laterally from a body portion 1 having a circular cross section, which is constant along the axial direction. When driving the joint piles 1 into the ground 5, the joint piles 1 are first restrained by the chuck 12 of the existing vibrating pile driver 10 whose vibration frequency and amplitude are variable. The joint pile 1 is placed on the ground in a suspended state, and sand and cement are dried on the ground around the joint pile 1.
状態での混合物を盛り上げておく。Leave the mixture to rise.
そして、予め実験等により得られたデータに基づいて、
節杭1の形態及び地盤5の状態等を勘案して定められた
周波数及び振幅をもって振動杭打機10の起振機(図示
省略)を作動させる。それにより、振動杭打機1のチャ
ック12が節杭1を拘持した状態で上下方向に振動せし
められ、節杭1の周面に作用する摩擦力を小さく保ちつ
つ、振動杭打機10の重量と節杭1の自重とによって節
杭1が、添付図面のA、B。Based on data obtained in advance through experiments, etc.,
The exciter (not shown) of the vibratory pile driver 10 is operated at a frequency and amplitude determined by taking into consideration the form of the knotted pile 1, the condition of the ground 5, etc. As a result, the chuck 12 of the vibratory pile driver 1 is vibrated in the vertical direction while holding the gnarled pile 1, and while the frictional force acting on the circumferential surface of the gnarled pile 1 is kept small, the chuck 12 of the vibratory pile driver 10 is Depending on the weight and the own weight of the knotted pile 1, the knotted pile 1 is designated as A and B in the attached drawing.
Cで順次示される如くに、地盤中に沈下して打込まれて
ゆく。As shown in C, they sink into the ground and are driven into the ground.
その際、節杭1の振動と各節部3の下方への移動により
、充填物4が地盤中に引き込まれて節杭の周囲で極めて
密に締め固められる。At this time, due to the vibration of the knotted pile 1 and the downward movement of each knotted portion 3, the filling material 4 is drawn into the ground and compacted very densely around the knotted pile.
上述の如くにして節杭lの打込工法が実施されることに
より、振動を利用して節杭1を打ち込むようにされるこ
とから、打撃工法に比して騒音・振動の発生が著しく抑
制され、しかも、高周波数の振動は地盤を伝播し難いの
で、施工場所及び時間の制限をさほど受けることがなく
、市街地あるいは住宅地等においても節杭の施工を行う
ことができる。By implementing the method of driving the knotted piles 1 as described above, the generation of noise and vibration is significantly suppressed compared to the hammering method, since the knotted piles 1 are driven using vibration. Moreover, since high-frequency vibrations are difficult to propagate through the ground, there are no significant restrictions on construction location or time, and knot piles can be constructed in urban areas or residential areas.
また、比較的高い周波数で節杭が振動せしめられるので
、地盤及び充填物の締め固め効果が打撃工法及び静圧圧
入工法のいずれよりも高いものとなり、従って、節杭支
持特性が極めて優れたものとなる
さらに、既存の振動杭打機を用いることができるので、
縦穴を穿設する等の手間と時間を要する作業が一切必要
でなく、そのため、施工効率が格段に向上する。In addition, since the knot pile is vibrated at a relatively high frequency, the compaction effect of the ground and filling is higher than that of either the impact method or the hydrostatic press-in method, and therefore the knot pile support characteristics are extremely excellent. In addition, existing vibrating pile drivers can be used, so
There is no need for laborious and time-consuming work such as drilling vertical holes, which greatly improves construction efficiency.
以上の説明から明らかな如く、本発明に係る節杭打込工
法によれば、騒音・振動を可及的に抑制したもとで、地
盤及び充填物の締め固め効果を格段に向上させることが
できるとともに、縦穴を穿設すること等の手間と時間を
要する作業を一切必要とせず、既存の振動杭打機を用い
る・だけで効率良く節杭を地盤に打込むことができ、節
杭の施工に極めて多大な貢献を果たし得る。As is clear from the above explanation, according to the knotted pile driving method according to the present invention, it is possible to significantly improve the compaction effect of the ground and filling while suppressing noise and vibration as much as possible. It is possible to efficiently drive knotted piles into the ground simply by using an existing vibrating pile driver, without requiring any labor-intensive and time-consuming work such as drilling vertical holes. It can make an extremely large contribution to construction.
図A、図B及び図Cは、それぞれ、本発明に係る節杭打
込工法の一例が実施されている状態を順次示す図である
。
図において、1は節杭、2は胴部、3は節部4は充填物
、5は地盤、10は振動杭打機。
12はチャックである。
手続補正書
(方式)
%式%
1、事件の表示
平成2年特許願第82922号
2、発明の名称
節杭打込工法
3、補正をする者
事件との関係 特許出願人
住 所 大阪市北区西天満3丁目14番16号(西天
満パークビル3号館)
名 称 株式会社 建調神戸(ほか1名)代表者
水 谷 裕
4、代 理 人
住 所 東京都港区虎ノ門−丁目15番7号6、補正
の対象
(1)明細書の発明の詳細な説明の欄
(2)明細書の図面の簡単な説明の欄
(3)適正な図面 (第1図)
7、補正の内容
(1) 明細書第6頁第18〜19行目の「添付図面
のA。
B、 Cで」とあるを「添付図面の第1図A、 B。
Cで」と訂正する。
(2)明細書第8頁第12行目の「図A、図B及び図C
は、Jとあるを「第1図A、 B、 Cは、」と訂正
する。
(3)別紙の通りFigures A, B, and C are views sequentially showing a state in which an example of the knotted pile driving method according to the present invention is being implemented. In the figure, 1 is a knot pile, 2 is a body, 3 is a knot 4 is a filler, 5 is the ground, and 10 is a vibrating pile driver. 12 is a chuck. Procedural amendment (method) % formula % 1. Display of the case Patent Application No. 82922 of 1990 2. Name of the invention Pile driving method 3. Person making the amendment Relationship with the case Patent applicant address Kita, Osaka City 3-14-16 Nishitenma Ward (Nishitenma Park Building 3) Name Kencho Kobe Co., Ltd. (and 1 other person) Representative
Yutaka Mizutani 4, Agent Address: 15-7-6 Toranomon-chome, Minato-ku, Tokyo Subject of amendment (1) Detailed description of the invention in the specification (2) Brief description of the drawings in the specification Column (3) Appropriate drawings (Figure 1) 7. Contents of amendment (1) On page 6 of the specification, lines 18-19, the phrase “A, B, C of the attached drawings” has been replaced with “A, B, C of the attached drawings”. In Figure 1, A, B, and C, please correct this. (2) “Figure A, Figure B, and Figure C” on page 8, line 12 of the specification
, correct J to read ``Figure 1 A, B, and C are''. (3) As per attached sheet
Claims (1)
の間隔を在して設けられた節杭に、該節杭の形態及びそ
れが打込まれるべき地盤の状態等に基づいて定められる
周波数及び振幅をもった上下方向の振動を与えつつ、該
節杭を地盤に打込むことを特徴とする節杭打込工法。 2、節杭の振動と各節部の下方への移動とを利用して、
節杭と地盤との間に砂とセメントとの混合物、砂利ある
いは砕石等の充填物を充填しつつ節杭を地盤に打込むこ
とを特徴とする請求項1記載の節杭打込工法。 3、振動周波数及び振幅が可変の振動杭打機により節杭
に振動を与えつつ、該節杭を地盤に打込むことを特徴と
する請求項1記載の節杭打込工法。[Claims] 1. The form of the joint pile and how it should be driven into the joint pile, in which joint parts projecting laterally from the trunk are provided at appropriate intervals along the axial direction. A knotted pile driving method characterized by driving the knotted pile into the ground while applying vertical vibration with a frequency and amplitude determined based on the condition of the ground. 2.Using the vibration of the joint pile and the downward movement of each joint,
2. The knotted pile driving method according to claim 1, wherein the knotted pile is driven into the ground while filling a filler such as a mixture of sand and cement, gravel, or crushed stone between the knotted pile and the ground. 3. The knotted pile driving method according to claim 1, characterized in that the knotted pile is driven into the ground while applying vibration to the knotted pile using a vibrating pile driver whose vibration frequency and amplitude are variable.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8292290A JPH03286022A (en) | 1990-03-31 | 1990-03-31 | Method for driving joint pile |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8292290A JPH03286022A (en) | 1990-03-31 | 1990-03-31 | Method for driving joint pile |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH03286022A true JPH03286022A (en) | 1991-12-17 |
Family
ID=13787734
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8292290A Pending JPH03286022A (en) | 1990-03-31 | 1990-03-31 | Method for driving joint pile |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH03286022A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5932124B1 (en) * | 2015-11-18 | 2016-06-08 | 株式会社オーク | Steel pipe pile construction method |
US11441288B2 (en) | 2017-09-20 | 2022-09-13 | Innogy Se | Pile and method of installing |
-
1990
- 1990-03-31 JP JP8292290A patent/JPH03286022A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5932124B1 (en) * | 2015-11-18 | 2016-06-08 | 株式会社オーク | Steel pipe pile construction method |
JP2017095880A (en) * | 2015-11-18 | 2017-06-01 | 株式会社オーク | Construction method of steel pipe pile |
US11441288B2 (en) | 2017-09-20 | 2022-09-13 | Innogy Se | Pile and method of installing |
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