JP2022186474A - Support pile and support pile installation device - Google Patents

Support pile and support pile installation device Download PDF

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JP2022186474A
JP2022186474A JP2021094709A JP2021094709A JP2022186474A JP 2022186474 A JP2022186474 A JP 2022186474A JP 2021094709 A JP2021094709 A JP 2021094709A JP 2021094709 A JP2021094709 A JP 2021094709A JP 2022186474 A JP2022186474 A JP 2022186474A
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support
ground
end portion
support member
pile
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JP7178645B1 (en
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靖代 西井上
Yasuyo Nishiinoue
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Meary Co Ltd
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Abstract

To provide a support pile which can be simply installed on the ground and can be easily removed from the ground when construction is ended.SOLUTION: A support pile connected to a structure constructed on the ground includes: a rod-like body having an upper end connected to the structure and a lower end inserted to the ground; a support which has a base end rotatably connected to the lower end of the rod-like body around a second axial line perpendicular to a central axial line of the rod-like body, and is rotatable between a closed position extending in a longitudinal direction of the rod-like body from the base end and an open position perpendicular to the longitudinal direction; a movable body which is mounted on the rod-like body and is movable on the central axial line together with the rod-like body; and an arm part for rotatably connecting the lower end of the movable body and a part close to the central axial line of the base end of the support.SELECTED DRAWING: Figure 1

Description

本発明は、地盤に貫入された状態で、地上に構築された構築物を支持する支持杭および支持杭を地盤に貫入して設置するための支持杭設置装置に関する。 TECHNICAL FIELD The present invention relates to a support pile that supports a structure constructed on the ground in a state of being penetrated into the ground, and a support pile installation device for penetrating and installing the support pile into the ground.

従来技術の支持杭および支持杭設置装置は、たとえば特許文献１に記載されている。特許文献１に記載の支持杭は、機械的強度の高い硬質プラスチック材料によって形成される管状の杭本体と、杭本体の貫入方向先端に取り付けられるヘッドキャップと、ヘッドキャップに接続され、外周面に設けられたスクリュー羽根が回転しながら地盤に貫入される支持翼とを備えている。 A prior art support pile and support pile installation device is described, for example, in US Pat. The support pile described in Patent Document 1 includes a tubular pile body formed of a hard plastic material with high mechanical strength, a head cap attached to the tip of the pile body in the penetrating direction, and a head cap connected to the head cap. It is provided with a support wing that penetrates into the ground while the provided screw blade rotates.

特許文献１に記載の支持杭設置装置は、支持杭と、支持杭が装着されるリーダー付きロッドとを含んでいる。リーダー付きロッドの先端に、ヘッドキャップと支持翼とが接続された状態で、リーダー付きロッドを所定の方向に回転させながら下方に移動させることによって、支持杭は、回転して軟弱地盤を掘削しながら地盤に貫入される。リーダー付きロッドは、支持翼の先端が頑強な支持層に到達した後、支持杭との接続が解除されて引き抜かれ、支持翼は杭本体とヘッドキャップと共に地盤中に残り、支持杭として機能し得る状態で地盤に設置される。 The support pile installation device described in Patent Literature 1 includes support piles and rods with leaders to which the support piles are attached. With the head cap and supporting wings connected to the tip of the rod with leader, the rod with leader is moved downward while rotating in a predetermined direction, so that the support pile rotates and excavates the soft ground. while penetrating into the ground. After the tip of the support wing reaches the strong support layer, the leader rod is disconnected from the support pile and pulled out, leaving the support wing together with the pile body and head cap in the ground and functioning as a support pile. It is placed on the ground in a state where it can be obtained.

特開２００６－３４２４９９号公報JP-A-2006-342499

特許文献１に記載の支持杭では、地盤の強固な支持層に支持翼の先端が到達するまで支持杭を地盤に貫入させる必要があり、軟弱地盤では地上の構築物からの荷重に対して十分な地耐力を得ることが困難であり、支持翼の先端が支持層に到達するまで支持杭を地盤に貫入しなければならない。したがって、地盤の支持層が深い場合には、支持杭の全長が長くなり、支持杭を回転させるためのリーダー付きロッドを備えた支持杭設置装置も大型化してしまい、簡便に支持杭を設置することができないという課題がある。また、支持杭が支持する構築物が解体され、あるいは撤去された場合に、地中に打設された支持杭を地上へ回収するには多大な手間および労力を要し、不要となった支持杭を地盤から容易に撤去することができないという問題がある。 In the support pile described in Patent Document 1, it is necessary to penetrate the support pile into the ground until the tip of the support wing reaches the strong support layer of the ground. It is difficult to obtain soil bearing capacity, and the support piles must be penetrated into the ground until the tip of the support wing reaches the support layer. Therefore, when the support layer of the ground is deep, the total length of the support pile becomes long, and the support pile installation device equipped with a rod with a leader for rotating the support pile also becomes large, making it difficult to install the support pile. I have a problem that I can't. In addition, when the structure supported by the supporting piles is dismantled or removed, it takes a great deal of time and effort to recover the supporting piles driven into the ground to the ground. cannot be easily removed from the ground.

本発明の目的は、地盤に簡便に設置することができ、工事が終了したとき、地盤から容易に撤去できる支持杭および支持杭設置装置を提供することである。 SUMMARY OF THE INVENTION It is an object of the present invention to provide a support pile and a support pile installation device that can be easily installed on the ground and easily removed from the ground when construction is completed.

本発明は、地上に構築された構築物を支持する支持杭であって、
前記構築物に連結される上端部および地中に挿入される下端部を有する長尺な支持部材と、
前記支持部材の前記下端部に、前記支持部材の中心軸線に垂直な第２軸線まわりに回動可能に連結される基端部を有し、前記基端部から前記支持部材の長手方向に沿って延びる閉鎖位置と、前記長手方向に垂直な開放位置とにわたって回動可能な支持体と、
前記支持部材に装着され、前記支持部材とともに前記中心軸線上を移動可能な移動体と、
前記移動体の下端部と、前記支持体の基端部の前記中心軸線寄りの部分と、を回動可能に連結する腕部と、
を備えていることを特徴とする支持杭である。 The present invention is a support pile that supports a structure built on the ground,
an elongate support member having an upper end connected to the structure and a lower end inserted into the ground;
A base end portion is connected to the lower end portion of the support member so as to be rotatable around a second axis perpendicular to the central axis of the support member, and a base end portion is provided along the longitudinal direction of the support member from the base end portion. a support pivotable between a closed position extending along the longitudinal direction and an open position perpendicular to said longitudinal direction;
a movable body mounted on the support member and movable along the central axis along with the support member;
an arm portion that rotatably connects the lower end portion of the movable body and the portion of the base end portion of the support body near the central axis;
It is a support pile characterized by comprising

また本発明は、請求項１の支持杭を地上から地盤に打ち込んで設置するための支持杭設置装置であって、
地上に立設された前記支持部材に支持された状態で、前記支持部材の前記中心軸線に沿って配設される、振動を発生する振動発生体と、
前記振動発生体上に配設され、長手方向に移動するプランジャを有するジャッキと、
前記プランジャ上に配設される支圧部材と、
前記支圧部材と、前記支持体の遊端部および基端部の間の中間部と、を連結する連結棒材と、を備えることを特徴とする支持杭設置装置である。 Further, the present invention is a support pile installation device for driving and installing the support pile of claim 1 into the ground from the ground,
a vibration generator that generates vibration and is arranged along the central axis of the support member while being supported by the support member that is erected on the ground;
a jack disposed on the vibration generator and having a longitudinally moving plunger;
a bearing member disposed on the plunger;
The support pile installation device is characterized by comprising a connecting rod member that connects the bearing pressure member and an intermediate portion between the free end portion and the base end portion of the support.

本発明の支持杭によれば、支持体が支持部材に、開放位置と閉鎖位置とに回動可能に設けられており、地盤に支持杭を簡便に設置することができる。支持層が地盤の深い位置に位置している場合には、軟弱地盤において、支持体を開放位置で保持することによって十分な支持力が得られる。さらに、支持部材の上端部に設けられた孔部に、たとえばクレーンのフックを係合して、支持杭を容易に地盤から引き抜いて撤去することができる。 According to the support pile of the present invention, the support is provided on the support member so as to be rotatable between the open position and the closed position, so that the support pile can be easily installed on the ground. If the support layer is located deep in the ground, sufficient bearing capacity can be obtained in soft ground by holding the support in an open position. Further, the support pile can be easily pulled out from the ground and removed by engaging, for example, a hook of a crane with the hole provided in the upper end of the support member.

また、本発明の支持杭設置装置によれば、振動発生体が発生する振動を支持体に作用させながら、支持体を回動させることができ、これによって土砂への支持体の挿入が容易となる。 In addition, according to the support pile installation device of the present invention, the support can be rotated while the vibration generated by the vibration generator acts on the support, thereby facilitating the insertion of the support into the earth and sand. Become.

第１実施形態に係る支持体２が閉鎖位置に位置する支持杭１の正面図である。1 is a front view of a support pile 1 with a support 2 in a closed position according to the first embodiment; FIG. 支持体２が開放位置に回動した状態の支持杭１の正面図である。4 is a front view of the support pile 1 with the support 2 pivoted to the open position; FIG. 図２に示す支持杭１を切断面線ＩＩＩ－ＩＩＩから見た断面図である。FIG. 3 is a sectional view of the support pile 1 shown in FIG. 2 as seen from the section line III-III; 中心軸線Ｌ１の周方向に９０°の角度位置毎に４箇所配設した支持体２が開放位置にある状態を示す平面図である。FIG. 10 is a plan view showing a state in which four supports 2 are arranged at angular positions of 90° in the circumferential direction of the central axis L1 and are in the open position. 第２実施形態に係る支持体２が閉鎖位置に位置する支持杭設置装置５１の正面図である。FIG. 11 is a front view of a support pile installation device 51 in which a support 2 according to a second embodiment is positioned in a closed position; 図５に示す支持杭１を切断面線ＶＩ－ＶＩから見た断面図である。FIG. 6 is a sectional view of the support pile 1 shown in FIG. 5 as viewed from the section line VI-VI. 支持体２が開放位置に位置する支持杭設置装置５１の正面図である。FIG. 5 is a front view of the support pile installation device 51 with the support 2 positioned in the open position; 図７に示す支持杭１を切断面線ＶＩＩＩ－ＶＩＩＩから見た断面図である。FIG. 8 is a cross-sectional view of the support pile 1 shown in FIG. 7 as viewed from a cross-sectional line VIII-VIII;

図１は、第１実施形態に係る支持体２が閉鎖位置に位置する支持杭１の正面図である。図２は、支持体２が開放位置に回動した状態の支持杭１の正面図である。 FIG. 1 is a front view of a support pile 1 with a support 2 in a closed position according to a first embodiment. FIG. 2 is a front view of the support pile 1 with the support 2 pivoted to the open position.

第１実施形態に係る支持杭１について説明する。支持杭１は、鋼鉄製であって、地盤に貫入された状態で、地上に構築された図示しない構築物を支持する。支持杭１は、長手方向上端部１１が構築物を支持する筒状の支持部材３を備えている。支持杭１は、さらに支持部材３の長手方向下端部１２に配設される支持部２３を備えている。支持部２３には、支持部材３の中心軸線Ｌ１に対して対称となるように、一対の支持体２が配設されている。支持体２は、支持部材３の中心軸線Ｌ１に垂直な第２軸線Ｌ２まわりに回動可能に支持される基端部５と、基端部５の、第２軸線Ｌ２に垂直な方向に連設され、基端部５とともに開放位置に回動して、地盤に挿入される遊端部６とを有している。支持体２は、図１に示す、支持部材３の長手方向に沿って延びる閉鎖位置と、図２に示す、支持部材３の長手方向に垂直な、開放位置とにわたって回動可能である。 A supporting pile 1 according to the first embodiment will be described. The support pile 1 is made of steel, and supports a structure (not shown) built on the ground in a state of being penetrated into the ground. The support pile 1 comprises a tubular support member 3 whose upper longitudinal end 11 supports the construction. The support pile 1 further comprises a support portion 23 arranged at the longitudinal lower end portion 12 of the support member 3 . A pair of supports 2 are arranged on the support portion 23 so as to be symmetrical with respect to the central axis L1 of the support member 3 . The support body 2 includes a base end portion 5 that is rotatably supported about a second axis line L2 perpendicular to the central axis line L1 of the support member 3, and a base end portion 5 that is connected in a direction perpendicular to the second axis line L2. and a free end 6 which is pivoted to an open position together with the base end 5 and inserted into the ground. The support 2 is pivotable between a closed position extending along the longitudinal direction of the support member 3 shown in FIG. 1 and an open position perpendicular to the longitudinal direction of the support member 3 shown in FIG.

支持部材３は、各支持体２が負荷する圧縮力を許容する高い圧縮強度を有する構造用鋼管から成る。 The support members 3 consist of structural steel pipes with a high compressive strength to allow the compressive forces to be applied by each support 2 .

図３は、図２に示す支持杭１を切断面線ＩＩＩ－ＩＩＩから見た断面図であり、図４は、中心軸線Ｌ１の周方向に９０°の角度位置毎に４箇所配設した支持体２が開放位置にある状態を示す平面図である。本実施形態においては、図３に示すように、支持部材３の中心軸線Ｌ１に対して軸対称となるように一対の支持体２が配設されているが、これに限定されるものではない。支持体２は、１つのみ配設されるものでもよく、あるいは図４に示すように、中心軸線Ｌ１の周方向に９０°の角度位置毎に４箇所配設されるものでもよい。支持体２は、第２軸線Ｌ２に平行な幅方向の長さＷが大きく、地盤と接する面積が大きいので、地盤からの大きな反力を得ることができる。 FIG. 3 is a cross-sectional view of the support pile 1 shown in FIG. 2 as seen from the section line III-III, and FIG. Fig. 4 is a plan view showing the state in which the body 2 is in the open position; In this embodiment, as shown in FIG. 3, a pair of supports 2 are arranged so as to be axially symmetrical with respect to the central axis L1 of the support member 3, but this is not a limitation. . Only one support 2 may be provided, or as shown in FIG. 4, four supports may be provided at angular positions of 90° in the circumferential direction of the central axis L1. Since the support body 2 has a large length W in the width direction parallel to the second axis L2 and a large area in contact with the ground, a large reaction force from the ground can be obtained.

たとえば、地上に構築された構築物が撤去されて、構築物を支持する支持杭１が不要になった場合には、図２に示す支持部材３の上端部１１を上方に引き上げることによって、支持体２を開放位置から閉鎖位置に移動させながら、支持杭１を地盤から容易に引き抜いて、地盤から撤去することができる。 For example, when the structure built on the ground is removed and the support pile 1 for supporting the structure is no longer needed, the upper end 11 of the support member 3 shown in FIG. The support pile 1 can be easily pulled out from the ground and removed from the ground while moving from the open position to the closed position.

支持部２３には、支持体２の閉鎖位置から開放位置へ向かう回動方向下流側に位置し、支持体２が開放位置に回動した状態で、支持体２の下流側の面３０が当接する当接部３１が設けられている。 The supporting portion 23 is positioned downstream in the rotational direction from the closed position to the open position of the support 2, and is in contact with the downstream surface 30 of the support 2 when the support 2 is rotated to the open position. A contact portion 31 is provided for contact.

このように、支持体２が開放位置に回動した状態で、支持体２の下流側の面３０が当接する当接部３１を備えているので、支持体２が開放位置を超えて回動することを防止することができる。 In this way, since the support 2 is provided with the abutment portion 31 against which the downstream side surface 30 of the support 2 abuts when the support 2 is rotated to the open position, the support 2 is rotated beyond the open position. can be prevented.

支持杭１は、中心軸線Ｌ１上を支持部材３とともに移動可能な移動体７７を備えている。移動体７７は筒状であり、移動体７７の下端部３２には、移動体７７の下端部３２を支持体２の基端部５に回動可能に連結する一対の腕部７８がリンク部材として配設されている。腕部７８の一端部７４は、中心軸線Ｌ１上であって、移動体７７の下端部３２に位置する第５軸線Ｌ５まわりに回動可能に連結されており、腕部７８の他端部７３は、支持体２の基端部５に位置し、中心軸線Ｌ２と平行な第６軸線Ｌ６まわりに各々回動可能に連結されている。腕部７８は、移動体７７の下端部３２と、支持体２の基端部５の中心軸線Ｌ１寄りの部分とを、回転可能に連結する。 The support pile 1 includes a movable body 77 that can move along with the support member 3 on the central axis L1. The movable body 77 has a cylindrical shape, and a pair of arm portions 78 that rotatably connect the lower end portion 32 of the movable body 77 to the base end portion 5 of the support member 2 are link members. is arranged as One end portion 74 of the arm portion 78 is on the central axis line L1 and is connected to be rotatable around a fifth axis line L5 located at the lower end portion 32 of the moving body 77. The other end portion 73 of the arm portion 78 are positioned at the proximal end portion 5 of the support 2 and are connected so as to be rotatable about a sixth axis L6 parallel to the central axis L2. The arm portion 78 rotatably connects the lower end portion 32 of the moving body 77 and the portion of the base end portion 5 of the support body 2 near the central axis L1.

図５は、第２実施形態に係る支持体２が閉鎖位置に位置する支持杭設置装置５１の正面図である。図６は、図５に示す支持杭設置装置５１を切断面線ＶＩ－ＶＩから見た断面図である。図７は、支持体２が開放位置に位置する支持杭設置装置５１の正面図である。図８は、図７に示す支持杭１を切断面線ＶＩＩＩ－ＶＩＩＩから見た断面図である。 FIG. 5 is a front view of the support pile installation device 51 with the support 2 in the closed position according to the second embodiment. FIG. 6 is a sectional view of the support pile installation device 51 shown in FIG. 5 as viewed from the section line VI-VI. FIG. 7 is a front view of the support pile installation device 51 with the support 2 in the open position. FIG. 8 is a cross-sectional view of the support pile 1 shown in FIG. 7 viewed from the section line VIII-VIII.

ここで第２実施形態に係る支持杭設置装置５１について説明する。支持杭１の説明と重複する部分については、説明を省略し、同一の参照符を用いる。支持杭設置装置５１は、支持杭１を地上から地盤に打ち込んで設置するための装置である。支持杭設置装置５１は、支持部２３に配設される長尺な支持部材３と、支持部材３の上端面に配設される、振動を発生する振動発生体５３と、振動発生体５３上に配設され、長手方向に移動可能なプランジャ５７を有するジャッキ５８と、プランジャ５７上に配設される支圧部材６１と、支持体２の遊端部６と基端部５との間の中間部８と支圧部材６１とを連結する連結棒材６２と、を備える。 Here, the support pile installation device 51 according to the second embodiment will be described. Descriptions of portions overlapping the description of the support pile 1 are omitted, and the same reference numerals are used. The support pile installation device 51 is a device for driving and installing the support pile 1 from the ground into the ground. The support pile installation device 51 includes a long support member 3 arranged on the support portion 23, a vibration generator 53 arranged on the upper end surface of the support member 3, and a vibration generator 53 on the vibration generator 53. between a jack 58 having a longitudinally movable plunger 57, a bearing member 61 arranged on the plunger 57, and the free end 6 and the base end 5 of the support 2; A connecting rod member 62 that connects the intermediate portion 8 and the bearing member 61 is provided.

連結棒材６２は、連結棒材６２の一端部６３が支圧部材６１に回動可能に連結され、連結棒材６２の他端部６８が遊端部６と基端部５との間の中間部８に回動可能に連結される。一対の支持体２は、プランジャ５７の上下方向の伸長に伴って、遊端部６が基端部５の下方に位置し、下流側の面３０とは反対側に位置する上流側の面３７同士が向かい合う閉鎖位置の状態から、一対の支持体２同士が互いに離間する開放位置まで回動する。 One end portion 63 of the connecting rod member 62 is rotatably connected to the bearing member 61 , and the other end portion 68 of the connecting rod member 62 is between the free end portion 6 and the base end portion 5 . It is rotatably connected to the intermediate portion 8 . As the plunger 57 extends in the vertical direction, the free end portion 6 of the pair of supports 2 is positioned below the base end portion 5, and the upstream side surface 37 is positioned on the opposite side of the downstream side surface 30. From the state of the closed position where they face each other, the pair of support bodies 2 rotate to the open position where they are separated from each other.

振動発生体５３が発生する振動は、振動発生体５３が配設される支持部材３および支持部２３を介して支持体２に作用させることができ、また、振動発生体５３が発生する振動は、振動発生体５３上に配設されるジャッキ５８、ジャッキ５８のプランジャ５７上に配設される支圧部材６１および支圧部材６１と支持体２とを連結する連結棒材６２とを介して、支持体２に作用させることもできる。作業者は、振動発生体５３が発生する振動を支持体２に作用させながら、該支持体２を回動させることができ、支持体２に作用する地盤の抵抗を抑制することができる。これによって、支持体２を容易に回動させて、遊端部６を地盤に挿入させることができる。 The vibration generated by the vibration generator 53 can act on the support 2 via the support member 3 and the support portion 23 on which the vibration generator 53 is arranged. , a jack 58 arranged on the vibration generator 53, a bearing member 61 arranged on the plunger 57 of the jack 58, and a connecting rod member 62 connecting the bearing member 61 and the support member 2. , can also act on the support 2 . The operator can rotate the support 2 while applying the vibration generated by the vibration generator 53 to the support 2 , thereby suppressing ground resistance acting on the support 2 . As a result, the support 2 can be easily rotated to insert the free end 6 into the ground.

支持部材３の材料としては、振動発生体５３が発生した振動を支持部２３に伝達し易いものが好ましく、たとえば金属製のパイプ材などが用いられる。支持部材３として金属製のパイプ材を用いる場合に、パイプ材の断面形状は、特に限定されるものではなく、たとえば四角形、円形のものが使用可能である。振動発生体５３は、油圧、空気圧、電気、内燃機関などを利用して振動を発生させることができる。 As a material for the support member 3, a material that easily transmits the vibration generated by the vibration generator 53 to the support portion 23 is preferable, and for example, a metal pipe material or the like is used. When a metallic pipe material is used as the support member 3, the cross-sectional shape of the pipe material is not particularly limited, and for example, a square or circular shape can be used. The vibration generator 53 can generate vibration using hydraulic pressure, pneumatic pressure, electricity, an internal combustion engine, or the like.

支持杭設置装置５１は、支持体２が閉鎖位置に位置した状態で、支持体２の遊端部６が下孔５５の底面７１に接地するように設置される。 The support pile installation device 51 is installed so that the free end 6 of the support 2 is in contact with the bottom surface 71 of the pilot hole 55 when the support 2 is in the closed position.

この状態で、ジャッキ５８が駆動されてプランジャ５７が伸長すると、一対の支持体２は、プランジャ５７の伸長に伴って、遊端部６が基端部５の下方に位置した閉鎖位置の状態から、互いに離間するように回動する。このとき、振動発生体５３が駆動されて振動を発生するので、振動発生体５３が発生する振動を一対の支持体２に作用させて、支持体２の回転方向前方にある土砂の払い除け作用によって支持体２を容易に回動させることができる。ジャッキ５８としては、油圧ジャッキが用いられる。振動発生体５３の振動数は、たとえば６０～５００ｒｐｍである。 In this state, when the jack 58 is driven and the plunger 57 extends, the pair of supports 2 move from the closed position in which the free end 6 is positioned below the base end 5 as the plunger 57 extends. , rotate away from each other. At this time, since the vibration generator 53 is driven to generate vibration, the vibration generated by the vibration generator 53 is applied to the pair of support bodies 2, thereby sweeping away earth and sand ahead of the support bodies 2 in the rotation direction. , the support 2 can be easily rotated. A hydraulic jack is used as the jack 58 . The frequency of vibration generator 53 is, for example, 60 to 500 rpm.

図５に示すように、支持体２は、正面視において、閉鎖位置に位置した状態で、基端部５よりも遊端部６の方が、中心軸線Ｌ１から離隔しており、中心軸線Ｌ１を中心とする一対の支持体２間の隙間は、基端部５よりも遊端部６の方が大きい。このような構成であれば、下孔５５の底面７１に配設された支持杭設置装置５１の支持体２を開放位置に向かって回動させ易くなる。 As shown in FIG. 5, when the support 2 is positioned at the closed position as viewed from the front, the free end 6 is farther from the center axis L1 than the base end 5, and the free end 6 is spaced apart from the center axis L1. The gap between the pair of supports 2 centered on is larger at the free end 6 than at the base end 5 . With such a configuration, it becomes easier to rotate the support body 2 of the support pile installation device 51 disposed on the bottom surface 71 of the pilot hole 55 toward the open position.

支持杭設置装置５１は、支持部材３に装着され、支持部材３とともに中心軸線Ｌ１上を移動可能な移動体７７を備えている。移動体７７は鋼管から成り、腕部７８は、構造用鋼板から成る。支持部材３は、移動体７７の底壁９０上に配設されている。移動体７７の下端部には、移動体７７の下端部と一対の支持体２の基端部５とをそれぞれ回動可能に連結する一対の腕部７８が配設されている。腕部７８の一端部は、移動体７７の下端部３２の中心軸線Ｌ１上に位置し、中心軸線Ｌ１に垂直な第５軸線Ｌ５まわりに回動可能に連結されており、腕部７８の他端部は、支持体２の基端部５に位置する一対の第６軸線Ｌ６まわりに回動可能に連結されている。 The support pile installation device 51 is equipped with the support member 3 and has a movable body 77 that can move along the central axis line L1 together with the support member 3 . The mover 77 is made of steel pipe and the arm 78 is made of structural steel plate. The support member 3 is arranged on the bottom wall 90 of the moving body 77 . A pair of arm portions 78 are provided at the lower end of the moving body 77 to rotatably connect the lower end of the moving body 77 and the base ends 5 of the pair of support bodies 2 . One end of the arm portion 78 is located on the central axis L1 of the lower end portion 32 of the moving body 77 and is connected to be rotatable about a fifth axis L5 perpendicular to the central axis L1. The ends are connected to be rotatable around a pair of sixth axis lines L6 positioned at the base end portion 5 of the support 2 .

一対の第６軸線Ｌ６は、支持体２が閉鎖位置に位置した状態で、第２軸線Ｌ２より中心軸線Ｌ１寄りに設けられている。第２軸線Ｌ２と第６軸線Ｌ６とを繋ぐ直線と、第６軸線Ｌ６と第４軸線Ｌ４とを繋ぐ直線との成す角が略９０°となるように配設されている。 The pair of sixth axis lines L6 are provided closer to the central axis line L1 than the second axis line L2 when the support body 2 is positioned at the closed position. The straight line connecting the second axis L2 and the sixth axis L6 and the straight line connecting the sixth axis L6 and the fourth axis L4 form an angle of approximately 90°.

このため、支持体２の中間部８に連結された連結棒材６２と第２軸線Ｌ２との間の距離が短く、閉鎖位置から開放位置への回動開始時に、支持体２に作用する回転力が小さい場合であっても、移動体７７に作用する中心軸線Ｌ１方向下向きの力によって、閉鎖位置に位置する支持体２を開放位置に向かって容易に回動させることができる。 Therefore, the distance between the connecting rod 62 connected to the intermediate portion 8 of the support 2 and the second axis L2 is short, and the rotation acting on the support 2 at the start of rotation from the closed position to the open position is reduced. Even if the force is small, the downward force acting on the movable body 77 in the direction of the central axis L1 can easily rotate the support body 2 from the closed position toward the open position.

図５に示すように、一対の腕部７８の成す角度θは、支持体２が閉鎖位置に位置した状態で鋭角であり、支持体２が閉鎖位置から開放位置に向かって回動するに従って大きくなる。角度θは、図７に示すように、支持体２が開放位置に位置した状態で１８０°となり、一対の腕部７８は、水平面上に位置するようになる。 As shown in FIG. 5, the angle θ between the pair of arms 78 is acute when the support 2 is in the closed position, and increases as the support 2 rotates from the closed position toward the open position. Become. As shown in FIG. 7, the angle .theta. is 180.degree. when the support 2 is in the open position, and the pair of arms 78 are positioned on the horizontal plane.

このように、地上に構築された構築物を支持する支持杭１は、構築物を支持する上端部１１および地中に挿入される下端部１２を有する支持部材３と、支持部材３の下端部１２に、支持部材３の中心軸線Ｌ１に垂直な第２軸線Ｌ２まわりに回動可能に連結される基端部５を有し、基端部５から支持部材３の長手方向に沿って延びる閉鎖位置と、長手方向に垂直な開放位置とにわたって回動可能な支持体２と、支持部材３に装着され、支持部材３とともに中心軸線Ｌ１上を移動可能な移動体７７と、移動体７７の下端部３２と、支持体２の基端部５の中心軸線Ｌ１寄りの部分と、を回動可能に連結する腕部７８と、を備えている。支持部材３の下端部外周には、円筒状のガイド９２が設けられており、これによって腕部７８の一端部７４が連結される第５軸線Ｌ５は、中心軸線Ｌ１上を移動することができる。 Thus, the support pile 1 for supporting a structure built on the ground includes a support member 3 having an upper end 11 for supporting the structure and a lower end 12 inserted into the ground, and a closed position extending from the proximal end 5 along the longitudinal direction of the support member 3, having a proximal end 5 rotatably connected about a second axis L2 perpendicular to the central axis L1 of the support member 3; , an open position perpendicular to the longitudinal direction, a movable body 77 mounted on the support member 3 and movable along with the support member 3 along the central axis L1, and a lower end 32 of the movable body 77. and a portion of the base end portion 5 of the support 2 near the center axis L1, and an arm portion 78 that rotatably connects the base end portion 5 with the arm portion 78 . A cylindrical guide 92 is provided on the outer periphery of the lower end of the support member 3, so that the fifth axis L5 to which the one end 74 of the arm 78 is connected can move along the central axis L1. .

このように、支持杭１を地上から地盤に打ち込んで設置するための支持杭設置装置５１は、中心軸線Ｌ１に沿って配設される長尺な支持部材３と、支持部材３に配設される、振動を発生する振動発生体５３と、振動発生体５３上に配設され、長手方向に移動するプランジャ５７を有するジャッキ５８と、プランジャ５７上に配設される支圧部材６１と、支圧部材６１と、支持体２の遊端部６および基端部５の間の中間部８と、を連結する連結棒材６２と、を備えることを特徴とする。 Thus, the support pile installation device 51 for driving and installing the support pile 1 from the ground into the ground includes the long support member 3 arranged along the central axis L1 and the support member 3. a vibration generator 53 that generates vibration; a jack 58 that is disposed on the vibration generator 53 and has a plunger 57 that moves in the longitudinal direction; a bearing member 61 that is disposed on the plunger 57; It is characterized by comprising a connecting rod member 62 that connects the pressure member 61 and the intermediate portion 8 between the free end portion 6 and the base end portion 5 of the support 2 .

このような支持杭設置装置５１によれば、振動発生体５３が発生する振動を支持体２に作用させながら、支持体２を回動させることができ、これによって支持体２に作用する地盤の抵抗を抑制することができる。 According to the support pile installation device 51, the support body 2 can be rotated while the vibration generated by the vibration generator 53 is applied to the support body 2. Resistance can be suppressed.

支持杭１を地中に埋設した状態で、地面８１のレベルとなる位置を、予め支持部材３にマーキングすることによって、作業者は、支持部材３のマーキングと地面８１とが一致する位置まで支持杭１を打ち込んで、支持杭１を所望の深さに設置することができる。 With the support pile 1 buried in the ground, by marking the support member 3 in advance at the level of the ground 81, the operator supports the support until the marking of the support member 3 and the ground 81 match. By driving the pile 1, the support pile 1 can be installed at the desired depth.

連結棒材６２のうち、支持体２が開放位置に移動した状態で、地上に露出している部分は、地中に埋設された部分から分離して、振動発生体５３、ジャッキ５８、支圧部材６１とともに撤去される。連結棒材６２の地中に埋設された部分は、支持杭１の一部として地中に残される。 The portion of the connecting rod 62 exposed above the ground when the support 2 is moved to the open position is separated from the portion buried in the ground to form the vibration generator 53, the jack 58, and the bearing pressure. It is removed together with the member 61 . The portion of the connecting rod 62 buried in the ground is left in the ground as part of the supporting pile 1 .

なお、地中に設置された支持杭１を、地中に設置された状態で永久に保持する場合には、支持部材３を構成するパイプ材内にモルタルまたはセメントを注入して、硬化させて固めることができる。これによって支持杭１の強度を長期的に向上させることができる。 In order to permanently hold the support pile 1 installed underground, mortar or cement is injected into the pipe material constituting the support member 3 and allowed to harden. can be fixed. As a result, the strength of the support pile 1 can be improved over the long term.

１ 支持杭
２ 支持体
３ 支持部材
５ 基端部
６ 遊端部
８ 中間部
１１ 上端部
１２，３２ 下端部
１６，６３，６５，７４ 一端部
２３ 支持部
３０，３７ 面
３１ 当接部
４０ 他端部
４１ 突出部
４２ 下端部
４４ 支持部材
５１ 支持杭設置装置
５３ 振動発生体
５５ 下孔
５４，６７，６８，７３ 他端部
５７ プランジャ
５８ ジャッキ
６１ 支圧部材
６２ 連結棒材
６４ 第１連結棒
６９ 第２連結棒
７１ 底面
７７ 移動体
７８ 腕部
８１ 地面
９０ 底壁
９２ ガイド
Ｌ１ 中心軸線
Ｌ２ 第２軸線
Ｌ４ 第４軸線
Ｌ５ 第５軸線
Ｌ６ 第６軸線 1 Support pile 2 Support body 3 Support member 5 Base end 6 Free end
8 Middle part
11 upper end 12, 32 lower end
16, 63, 65, 74 One end 23 Supporting parts 30, 37 Surface 31 Abutting part 40 Other end 41 Protruding part 42 Lower end 44 Supporting member 51 Support pile installation device 53 Vibration generator 55 Prepared holes 54, 67, 68 , 73 Other end 57 Plunger 58 Jack 61 Bearing member 62 Connecting rod member 64 First connecting rod 69 Second connecting rod 71 Bottom surface 77 Moving body 78 Arm 81 Ground 90 Bottom wall 92 Guide L1 Central axis L2 Second axis L4 4th axis L5 5th axis L6 6th axis

また本発明は、地上に構築された構築物を支持する支持杭であって、
前記構築物に連結される上端部および地中に挿入される下端部を有する長尺な支持部材と、
前記支持部材の前記下端部に、前記支持部材の中心軸線に垂直な第２軸線まわりに回動可能に連結される基端部を有し、前記基端部から前記支持部材の長手方向に沿って延びる閉鎖位置と、前記長手方向に垂直な開放位置とにわたって回動可能な支持体と、
前記支持部材に装着され、前記支持部材とともに前記中心軸線上を移動可能な移動体と、
前記移動体の下端部と、前記支持体の基端部の前記中心軸線寄りの部分と、を回動可能に連結する腕部と、
支持部材の下端部に配設される支持部であって、前記支持体が開放位置に配置されたとき、前記支持体が当接する当接部を有する支持部と、を備えていることを特徴とする支持杭である。 The present invention also provides a support pile for supporting a structure built on the ground,
an elongate support member having an upper end connected to the structure and a lower end inserted into the ground;
A base end portion is connected to the lower end portion of the support member so as to be rotatable around a second axis perpendicular to the central axis of the support member, and a base end portion is provided along the longitudinal direction of the support member from the base end portion. a support pivotable between a closed position extending along the longitudinal direction and an open position perpendicular to said longitudinal direction;
a movable body mounted on the support member and movable along the central axis along with the support member;
an arm portion that rotatably connects the lower end portion of the movable body and the portion of the base end portion of the support body near the central axis;
a support portion disposed at a lower end portion of a support member, the support portion having a contact portion with which the support body abuts when the support body is arranged at the open position. It is a supporting pile that

また本発明は、地上に構築された構築物を支持する支持杭であって、前記構築物に連結される上端部および地中に挿入される下端部を有する長尺な支持部材と、前記支持部材の前記下端部に、前記支持部材の中心軸線に垂直な第２軸線まわりに回動可能に連結される基端部を有し、前記基端部から前記支持部材の長手方向に沿って延びる閉鎖位置と、前記長手方向に垂直な開放位置とにわたって回動可能な支持体と、前記支持部材に装着され、前記支持部材とともに前記中心軸線上を移動可能な移動体と、前記移動体の下端部、および前記支持体の基端部の前記中心軸線寄りの部分を回動可能に連結する腕部と、を備える支持杭を地上から地盤に打ち込んで設置するための支持杭設置装置であって、
地上に立設された前記支持部材に支持された状態で、前記支持部材の前記中心軸線に沿って配設される振動を発生する振動発生体と、
前記振動発生体上に配設され、前記長手方向に移動するプランジャを有するジャッキと、
前記プランジャ上に配設される支圧部材と、
前記支圧部材と、前記支持体の遊端部および前記基端部の間の中間部と、を連結する連結棒材と、を備えることを特徴とする支持杭設置装置である。 The present invention also provides a support pile for supporting a structure built on the ground, comprising: a long support member having an upper end connected to the structure and a lower end inserted into the ground; a closed position extending along the length of the support member from the proximal end, having a proximal end rotatably connected to the lower end about a second axis perpendicular to the central axis of the support member; and an open position perpendicular to the longitudinal direction; a moving body mounted on the supporting member and movable along the central axis along with the supporting member; a lower end of the moving body; and an arm that rotatably connects the portion of the base end of the support near the central axis, the support pile installation device for driving and installing the support pile from the ground into the ground,
a vibration generator that generates vibration and is arranged along the central axis of the support member while being supported by the support member that is erected on the ground;
a jack disposed on the vibration generator and having a plunger that moves in the longitudinal direction;
a bearing member disposed on the plunger;
The support pile installation device is characterized by comprising a connecting rod member that connects the bearing pressure member and an intermediate portion between the free end portion and the base end portion of the support.

また本発明は、地上に構築された構築物を支持する支持杭であって、
前記構築物に連結される上端部および地中に挿入される下端部を有する長尺な支持部材と、
前記支持部材の前記下端部に、前記支持部材の中心軸線に垂直な第２軸線まわりに回動可能に連結される基端部を有し、前記基端部から前記支持部材の長手方向に沿って延びる閉鎖位置と、前記長手方向に垂直な開放位置とにわたって回動可能な支持体と、
前記支持部材に装着され、前記支持部材とともに前記中心軸線上を移動可能な移動体と、
前記移動体の下端部と、前記支持体の基端部の前記中心軸線寄りの部分と、を回動可能に連結する腕部と、
前記移動体の下端に配設される支持部であって、前記支持体が開放位置に配置されたとき、前記支持体が当接する当接部を有する支持部と、を備えていることを特徴とする支持杭である。 The present invention also provides a support pile for supporting a structure built on the ground,
an elongate support member having an upper end connected to the structure and a lower end inserted into the ground;
A base end portion is connected to the lower end portion of the support member so as to be rotatable around a second axis perpendicular to the central axis of the support member, and a base end portion is provided along the longitudinal direction of the support member from the base end portion. a support pivotable between a closed position extending along the longitudinal direction and an open position perpendicular to said longitudinal direction;
a movable body mounted on the support member and movable along the central axis along with the support member;
an arm portion that rotatably connects the lower end portion of the movable body and the portion of the base end portion of the support body near the central axis;
and a support portion disposed at the lower end of the movable body , the support portion having a contact portion with which the support body abuts when the support body is arranged at the open position. It is a supporting pile that

Claims (2)

地上に構築された構築物を支持する支持杭であって、
前記構築物に連結される上端部および地中に挿入される下端部を有する長尺な支持部材と、
前記支持部材の前記下端部に、前記支持部材の中心軸線に垂直な第２軸線まわりに回動可能に連結される基端部を有し、前記基端部から前記支持部材の長手方向に沿って延びる閉鎖位置と、前記長手方向に垂直な開放位置とにわたって回動可能な支持体と、
前記支持部材に装着され、前記支持部材とともに前記中心軸線上を移動可能な移動体と、
前記移動体の下端部と、前記支持体の基端部の前記中心軸線寄りの部分と、を回動可能に連結する腕部と、
を備えていることを特徴とする支持杭。 A support pile that supports a structure built on the ground,
an elongate support member having an upper end connected to the structure and a lower end inserted into the ground;
A base end portion is connected to the lower end portion of the support member so as to be rotatable around a second axis perpendicular to the central axis of the support member, and a base end portion is provided along the longitudinal direction of the support member from the base end portion. a support pivotable between a closed position extending along the longitudinal direction and an open position perpendicular to said longitudinal direction;
a movable body mounted on the support member and movable along the central axis along with the support member;
an arm portion that rotatably connects the lower end portion of the movable body and the portion of the base end portion of the support body near the central axis;
A support pile comprising: 請求項１に記載される支持杭を地上から地盤に打ち込んで設置するための支持杭設置装置であって、
地上に立設された前記支持部材に支持された状態で、前記支持部材の前記中心軸線に沿って配設される振動を発生する振動発生体と、
前記振動発生体上に配設され、前記長手方向に移動するプランジャを有するジャッキと、
前記プランジャ上に配設される支圧部材と、
前記支圧部材と、前記支持体の遊端部および前記基端部の間の中間部と、を連結する連結棒材と、を備えることを特徴とする支持杭設置装置。 A support pile installation device for driving and installing the support pile according to claim 1 into the ground from the ground,
a vibration generator that generates vibration and is arranged along the central axis of the support member while being supported by the support member that is erected on the ground;
a jack disposed on the vibration generator and having a plunger that moves in the longitudinal direction;
a bearing member disposed on the plunger;
A support pile installation device, comprising: a connecting rod member that connects the bearing pressure member and an intermediate portion between the free end portion and the base end portion of the support.
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Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5331307A (en) * 1976-09-04 1978-03-24 Kiyonobu Yokota Foundation pile
JPS61116832U (en) * 1985-01-09 1986-07-23
JPS61221414A (en) * 1985-03-27 1986-10-01 Mitsuo Inoue Method and apparatus for fixing driven pile
JP2000303456A (en) * 1999-04-23 2000-10-31 Seiji Matsushita Developing leg for pile and piling method using the same
JP2002180461A (en) * 2000-12-11 2002-06-26 Terumichi Tochigane Means for preventing tipping of pile
JP2004069281A (en) * 2002-08-05 2004-03-04 Wataru Adachi Heat exchange pile
JP2004324321A (en) * 2003-04-28 2004-11-18 Yuji Tadano Enlarged diameter friction pile
KR101443034B1 (en) * 2014-03-12 2014-09-22 홍석희 The bulb rimmer units for extension the bearing area of the pile or anchor structures
CN104563911A (en) * 2014-12-17 2015-04-29 贺德新 Drill rod for expanded-base threaded pile construction
JP2016014226A (en) * 2014-06-30 2016-01-28 株式会社三喜工務店 Foundation pile

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5331307A (en) * 1976-09-04 1978-03-24 Kiyonobu Yokota Foundation pile
JPS61116832U (en) * 1985-01-09 1986-07-23
JPS61221414A (en) * 1985-03-27 1986-10-01 Mitsuo Inoue Method and apparatus for fixing driven pile
JP2000303456A (en) * 1999-04-23 2000-10-31 Seiji Matsushita Developing leg for pile and piling method using the same
JP2002180461A (en) * 2000-12-11 2002-06-26 Terumichi Tochigane Means for preventing tipping of pile
JP2004069281A (en) * 2002-08-05 2004-03-04 Wataru Adachi Heat exchange pile
JP2004324321A (en) * 2003-04-28 2004-11-18 Yuji Tadano Enlarged diameter friction pile
KR101443034B1 (en) * 2014-03-12 2014-09-22 홍석희 The bulb rimmer units for extension the bearing area of the pile or anchor structures
JP2016014226A (en) * 2014-06-30 2016-01-28 株式会社三喜工務店 Foundation pile
CN104563911A (en) * 2014-12-17 2015-04-29 贺德新 Drill rod for expanded-base threaded pile construction

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