JP2023133932A - Foundation-integrated screw pile, and manufacturing method of the same - Google Patents
Foundation-integrated screw pile, and manufacturing method of the same Download PDFInfo
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- JP2023133932A JP2023133932A JP2022039194A JP2022039194A JP2023133932A JP 2023133932 A JP2023133932 A JP 2023133932A JP 2022039194 A JP2022039194 A JP 2022039194A JP 2022039194 A JP2022039194 A JP 2022039194A JP 2023133932 A JP2023133932 A JP 2023133932A
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- 238000004519 manufacturing process Methods 0.000 title claims description 5
- 229910052751 metal Inorganic materials 0.000 claims description 11
- 239000002184 metal Substances 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 4
- 239000004566 building material Substances 0.000 abstract description 2
- 238000009434 installation Methods 0.000 description 7
- 238000010276 construction Methods 0.000 description 6
- 238000003466 welding Methods 0.000 description 5
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- 239000011701 zinc Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
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Abstract
Description
本発明は、基礎一体型スクリュー杭、および、その製造方法に関する。 The present invention relates to a foundation-integrated screw pile and a manufacturing method thereof.
従来、住宅、仮設住宅、工事の際の仮設物、物置、カーポート、外構フェンス、設備機器、倉庫、屋外看板等のさまざまな設置物を屋外に設置するために、種々の基礎構造が知られており、例えばコンクリート基礎、杭基礎などが知られている。コンクリート基礎は、設置物を強固に支持することができるが、多くの作業工数および作業時間が必要とされる。また、設置物を撤去する場合にも、その作業は煩雑なものとなる。一方、杭基礎は、地盤に杭を打ち込んで固定するものであり、コンクリート基礎に比して構築作業および撤去作業が簡易な点で有利である。また、地盤が硬質な場合には、回転しながら打ち込むことができるスクリュー杭が使用されることがある。 Conventionally, various basic structures have been known for installing various installations outdoors, such as houses, temporary housing, temporary structures for construction, storerooms, carports, exterior fences, equipment, warehouses, and outdoor signboards. For example, concrete foundations and pile foundations are known. Concrete foundations can strongly support installed objects, but require a lot of man-hours and time. Moreover, when removing installed objects, the work becomes complicated. On the other hand, pile foundations are fixed by driving piles into the ground, and are advantageous over concrete foundations in that they are easier to construct and remove. In addition, if the ground is hard, screw piles that can be driven while rotating may be used.
上記したように、コンクリート基礎は、作業工数および撤去等に難があり、こうした問題を少なくするために小規模に構成すると、十分な強度を得られなくなるおそれがある。また、スクリュー杭を用いた杭基礎は、コンクリート基礎に比して作業工数は少ないものの、従来のスクリュー杭は、そのまま杭上に設置物を構築すると設置物としての見栄えが優れないという課題があった。このため、従来、スクリュー杭を用いた杭基礎では、地盤に打ち込まれたスクリュー杭に対して別途架台が取り付けられて使用されることが多く、作業工数の増加の原因となっていた。 As mentioned above, concrete foundations have difficulties in terms of work hours and removal, and if they are constructed on a small scale to reduce these problems, there is a risk that sufficient strength will not be obtained. Furthermore, although pile foundations using screw piles require less man-hours than concrete foundations, conventional screw piles have the problem that if an installation is built on the piles, the appearance of the installation is not good. Ta. For this reason, conventionally, in pile foundations using screw piles, a separate frame is often attached to the screw pile driven into the ground, which causes an increase in the number of work hours.
本発明は、上記課題の少なくとも一部を解決するためになされたものであり、作業工数が少なく見栄えが良い基礎を作成できる建築資材を提案することを目的の１つとする。 The present invention has been made to solve at least part of the above-mentioned problems, and one of the objects is to propose a building material that can create a good-looking foundation with less man-hours.
（形態１）形態１によれば、基礎一体型スクリュー杭が提案され、かかる基礎一体型スクリュー杭は、螺旋状に設けられたスクリュー羽根を有し、長手方向に伸びる杭部と、前記杭部と一体に構成されて前記長手方向に対して垂直な板面を画定する矩形の上面部と、前記上面部の各辺から前記杭部の先端に向かって前記長手方向に伸びる側面部と、を有する基礎部と、を備え、前記上面部には、複数の第１の貫通孔が前記杭部の軸心に対して対称な位置に形成されている。形態１によれば、作業工数が少なく見栄えが良い基礎を作成することができる。 (Form 1) According to Form 1, a foundation-integrated screw pile is proposed, and the foundation-integrated screw pile has a screw blade provided in a spiral shape, a pile part extending in the longitudinal direction, and the pile part a rectangular upper surface part that is integrally formed with a rectangular upper surface part that defines a plate surface perpendicular to the longitudinal direction; and a side surface part that extends in the longitudinal direction from each side of the upper surface part toward the tip of the pile part. a base portion having a base portion, and a plurality of first through holes are formed in the upper surface portion at positions symmetrical with respect to the axis of the pile portion. According to the first embodiment, it is possible to create a foundation with a good appearance and with less man-hours.
（形態２）形態２によれば、形態１において、前記基礎部の前記側面部は、前記第１の貫通孔よりも寸法が大きい第２の貫通孔が形成されている。 (Embodiment 2) According to embodiment 2, in embodiment 1, the side surface portion of the base portion is formed with a second through hole that is larger in size than the first through hole.
（形態３）形態３によれば、形態２において、前記第２の貫通孔は、前記上面部の短辺に連続する前記側面部に形成されている。 (Embodiment 3) According to Embodiment 3, in Embodiment 2, the second through hole is formed in the side surface part that is continuous with the short side of the upper surface part.
（形態４）形態４によれば、形態１から３の何れかにおいて、前記杭部と前記基礎部とは、中空体である。 (Form 4) According to Form 4, in any of Forms 1 to 3, the pile portion and the base portion are hollow bodies.
（形態５）形態５によれば、形態１から４の何れかにおいて、前記長手方向において、前記側面部の寸法は前記杭部の寸法の２０％以上５０％以下である。 (Embodiment 5) According to embodiment 5, in any one of embodiments 1 to 4, the dimension of the side surface portion in the longitudinal direction is 20% or more and 50% or less of the dimension of the pile portion.
（形態６）形態６によれば、形態１から５の何れかの基礎一体型スクリュー杭を製造する方法が提案され、かかる方法は、前記杭部と前記基礎部とを用意する工程と、前記杭部と前記基礎部とを一体に溶融金属に浸漬させて表面に金属皮膜を形成させる工程と、を含む。 (Embodiment 6) According to embodiment 6, a method for manufacturing a foundation-integrated screw pile according to any one of embodiments 1 to 5 is proposed, and this method includes the steps of preparing the pile part and the foundation part; The method includes the step of immersing the pile portion and the foundation portion together in molten metal to form a metal film on the surface.
以下、本発明の実施形態について図面を参照して説明する。以下で説明する図面において、同一の又は相当する構成要素には、同一の符号を付して重複した説明を省略する。本実施形態の基礎一体型スクリュー杭は、一例として、住宅、仮設住宅、工事の際の仮設物、物置、カーポート、外構フェンス、設備機器、倉庫、屋外看板等の設置物の基礎として利用することができる。 Embodiments of the present invention will be described below with reference to the drawings. In the drawings described below, the same or corresponding components are denoted by the same reference numerals and redundant explanation will be omitted. The foundation-integrated screw pile of this embodiment can be used, for example, as a foundation for installations such as houses, temporary housing, temporary structures during construction, storage sheds, carports, exterior fences, equipment, warehouses, outdoor signboards, etc. can do.
図１は、本発明の実施形態に係る基礎一体型スクリュー杭の一例を示す斜視図である。また、図２～図４のそれぞれは、図１の基礎一体型スクリュー杭の正面図、平面図、および側面図であり、図５は、図４中のＡ－Ａ方向から見たＡＡ視図である。図示するように、本実施形態の基礎一体型スクリュー杭２０は、杭部３０と、基礎部４０とを備えている。 FIG. 1 is a perspective view showing an example of a foundation-integrated screw pile according to an embodiment of the present invention. Moreover, each of FIGS. 2 to 4 is a front view, a plan view, and a side view of the foundation-integrated screw pile in FIG. 1, and FIG. 5 is an AA view seen from the AA direction in FIG. It is. As illustrated, the foundation-integrated screw pile 20 of this embodiment includes a pile portion 30 and a foundation portion 40.
杭部３０は、長手方向Ｌｄに沿って長い長尺状であり、螺旋状のスクリュー羽根３８を有している。本実施形態では、杭部３０は、円筒状の杭本体３２の外周部にスクリュー羽根３８が設けられている。杭本体３２の先端（図１、図２、図５中、下端）は先細になっており、先端近傍には、中空内部に連通する貫通孔３４が形成されている。一例として、貫通孔３４は、直径数ｍｍ～数十ｍｍである。また、本実施形態では、杭部３０の杭本体３２の基端（図１、図２、図５中、上端）は、開口端となっている。なお、杭本体３２は、中空円筒状であるものに限定されず、円柱状であってもよいし、直方体状などの外形であってもよい。また、本実施形態では、杭本体３２には、先端近傍に１つの貫通孔３４が形成されているが、こうした例に限定されず、複数の貫通孔３４が形成されてもよいし、貫通孔３４が形成されなくてもよい。さらに、杭部３０は、杭本体３２の外周部にスクリュー羽根３８が設けられるものに限定されず、杭本体３２自体が螺旋状のスクリュー羽根３８で構成されるなどとしてもよい。 The pile portion 30 has a long elongated shape along the longitudinal direction Ld, and has a spiral screw blade 38. In this embodiment, the pile part 30 is provided with a screw blade 38 on the outer circumference of a cylindrical pile main body 32. The tip of the pile body 32 (lower end in FIGS. 1, 2, and 5) is tapered, and a through hole 34 communicating with the hollow interior is formed near the tip. As an example, the through hole 34 has a diameter of several mm to several tens of mm. Moreover, in this embodiment, the base end (the upper end in FIGS. 1, 2, and 5) of the pile main body 32 of the pile part 30 is an open end. Note that the pile main body 32 is not limited to a hollow cylindrical shape, and may have a cylindrical shape or an outer shape such as a rectangular parallelepiped shape. Further, in the present embodiment, one through hole 34 is formed in the pile body 32 near the tip, but it is not limited to this example, and a plurality of through holes 34 may be formed, or a through hole 34 may not be formed. Furthermore, the pile part 30 is not limited to one in which the screw blade 38 is provided on the outer peripheral part of the pile main body 32, and the pile main body 32 itself may be configured with a spiral screw blade 38.
基礎部４０は、杭部３０の基端に一体に構成されている。なお、図５に示すように、基礎部４０は、長手方向において、杭部３０の基端（図５中、上端）を覆うように、杭部３０と一体に接続されることが好ましい。しかしながら、こうした例に限定されず、基礎部４０は、例えば、杭部３０の基端の外周面に対して一体に接続されるように構成されてもよい。基礎部４０は、長手方向Ｌｄに対して垂直な板面を画定する矩形の上面部４２と、上面部４２の各辺から長手方向Ｌｄに伸びる側面部４８と、を有する。 The foundation portion 40 is integrally formed at the base end of the pile portion 30. In addition, as shown in FIG. 5, it is preferable that the foundation part 40 is integrally connected with the pile part 30 so that the base end (in FIG. 5, upper end) of the pile part 30 may be covered in a longitudinal direction. However, the present invention is not limited to this example, and the base portion 40 may be configured to be integrally connected to the outer circumferential surface of the base end of the pile portion 30, for example. The base portion 40 has a rectangular upper surface portion 42 defining a plate surface perpendicular to the longitudinal direction Ld, and side surfaces 48 extending from each side of the upper surface portion 42 in the longitudinal direction Ld.
基礎部４０の上面部４２は、杭部３０の基端に接続されて杭部３０と一体に構成されている。上面部４２には、杭部３０の軸中心Ｃａに対して対称な位置に形成された複数の貫通孔（第１の貫通孔）４４と、杭部３０の開口端に連通する貫通孔４６と、が形成されている（図３および図５参照）。ここで、本実施形態では、上面部４２の長手方向に沿って、２つの貫通孔４４が形成されている。しかしながら、こうした例に限定されず、貫通孔４４は、一例として、杭部３０の軸中心Ｃａに対して回転対称な位置に３つ以上設けられてもよい。また、一例として、上面部４２中央の貫通孔４６の径Ｄｔは、杭部３０の開口径Ｄｏと同一である、または杭部３０の開口径Ｄｏよりも小さいことが好ましい（図５参照）。なお、上面部４２に貫通孔４６が形成されなくてもよい。複数の貫通孔４４は、一例として、基礎一体型スクリュー杭２０を回転させて打設するのに用いることができる。また、複数の貫通孔４４は、基礎部４０に設置物を取り付けるための締結具が挿入されるものとしてもよい。 The upper surface part 42 of the foundation part 40 is connected to the base end of the pile part 30 and is configured integrally with the pile part 30. The upper surface part 42 includes a plurality of through holes (first through holes) 44 formed at symmetrical positions with respect to the axial center Ca of the pile part 30, and a through hole 46 communicating with the open end of the pile part 30. , is formed (see FIGS. 3 and 5). Here, in this embodiment, two through holes 44 are formed along the longitudinal direction of the upper surface part 42. However, the present invention is not limited to this example, and three or more through holes 44 may be provided at rotationally symmetrical positions with respect to the axial center Ca of the pile portion 30, for example. Moreover, as an example, it is preferable that the diameter Dt of the through hole 46 at the center of the upper surface part 42 is the same as the opening diameter Do of the pile part 30, or smaller than the opening diameter Do of the pile part 30 (see FIG. 5). Note that the through hole 46 may not be formed in the upper surface portion 42. The plurality of through holes 44 can be used, for example, to rotate and drive the foundation-integrated screw pile 20. Moreover, a fastener for attaching an installation object to the base portion 40 may be inserted into the plurality of through holes 44 .
基礎部４０の側面部４８は、上面部４２の各辺に連続し、側面部４８と上面部４２とは、概ね直方体の外形を形成する。一例として、長手方向Ｌｄにおいて、側面部４８の寸法は杭部３０の寸法の２０％以上５０％以下であり、好ましくは３０％以上４０％である。本実施形態では、基礎部４０の先端側（図５中、下端側）は開口端とされているが、こうした例には限定されない。また、本実施形態では、側面部４８のうち、上面部４２の短辺に連続する短辺側面部４８Ａには、貫通孔（第２の貫通孔）４９が形成されている。本実施形態では、２つの短辺側面部４８Ａのそれぞれに１つずつ貫通孔４９が形成されている。一例として、貫通孔４９は、上面部４２の貫通孔（第１の貫通孔）４４よりも寸法（開口面積）が大きい。しかしながら、こうした例に限定されず、貫通孔４９は、一方の短辺側面部４８Ａにのみ形成されてもよい。また、貫通孔４９は、上面部４２の貫通孔４４の寸法と同一または小さい寸法とされてもよい。 The side surface portions 48 of the base portion 40 are continuous with each side of the top surface portion 42, and the side surface portions 48 and the top surface portion 42 generally form a rectangular parallelepiped external shape. As an example, in the longitudinal direction Ld, the dimension of the side surface part 48 is 20% or more and 50% or less of the dimension of the pile part 30, preferably 30% or more and 40%. In this embodiment, the distal end side (lower end side in FIG. 5) of the base portion 40 is an open end, but the present invention is not limited to such an example. Further, in this embodiment, a through hole (second through hole) 49 is formed in a short side side portion 48A of the side surface portion 48 that is continuous with the short side of the upper surface portion 42. In this embodiment, one through hole 49 is formed in each of the two short side surface portions 48A. As an example, the through hole 49 has a larger size (opening area) than the through hole (first through hole) 44 of the upper surface portion 42 . However, the present invention is not limited to this example, and the through hole 49 may be formed only on one short side surface portion 48A. Furthermore, the through hole 49 may have the same or smaller size than the through hole 44 of the upper surface portion 42 .
こうした基礎一体型スクリュー杭２０は、一例として、アルミニウムまたは鋼などの金属で形成される。基礎一体型スクリュー杭２０は、杭部３０と、基礎部４０とを溶接することで製造されてもよい。一例として、杭部３０と上面部４２とを溶接し、その後に上面部４２に側面部４８を溶接して、基礎一体型スクリュー杭２０が製造されてもよい。または、上面部４２と側面部４８とが一体に構成された基礎部４０を用意し、こうした基礎部４０を杭部３０と溶接して、基礎一体型スクリュー杭２０が製造されてもよい。また、基礎一体型スクリュー杭２０は、杭部３０と基礎部４０とが一体にされた状態で、杭部３０と基礎部４０とを溶融金属（例えば溶融亜鉛）に浸漬させて表面に金属皮膜（例えば亜鉛皮膜）を形成させてもよい。こうすれば、杭部３０と基礎部４０との接続部を含めて金属皮膜を設けることができ、基礎一体型スクリュー杭２０の耐久性を向上させることができる。また、この場合には、杭部３０の中空内部にも金属皮膜が設けられてもよい。この場合には、杭部３０先端の貫通孔３４から余分な溶融金属を排出させる、または貫通孔３４が空気の通り道となることで、杭部３０内部に好適に金属皮膜を形成することができる。ただし、こうした例に限定されず、基礎一体型スクリュー杭２０は、一例として鋳造などにより製造されてもよい。また、基礎一体型スクリュー杭２０は、樹脂などで形成されてもよい。 Such a foundation-integrated screw pile 20 is formed of metal such as aluminum or steel, as an example. The foundation-integrated screw pile 20 may be manufactured by welding the pile portion 30 and the foundation portion 40. As an example, the foundation-integrated screw pile 20 may be manufactured by welding the pile part 30 and the top part 42 and then welding the side part 48 to the top part 42. Alternatively, the foundation integrated screw pile 20 may be manufactured by preparing a foundation 40 in which the upper surface 42 and the side surface 48 are integrally configured, and welding the foundation 40 to the pile 30. In addition, the foundation-integrated screw pile 20 is manufactured by immersing the pile part 30 and the foundation part 40 in molten metal (for example, molten zinc) in a state where the pile part 30 and the foundation part 40 are integrated to form a metal coating on the surface. (For example, a zinc film) may be formed. In this way, the metal coating can be provided including the connection portion between the pile portion 30 and the foundation portion 40, and the durability of the foundation-integrated screw pile 20 can be improved. Further, in this case, a metal coating may also be provided inside the hollow portion of the pile portion 30. In this case, by discharging excess molten metal from the through hole 34 at the tip of the pile part 30, or by making the through hole 34 a passage for air, a metal film can be suitably formed inside the pile part 30. . However, the present invention is not limited to this example, and the foundation-integrated screw pile 20 may be manufactured by casting or the like, for example. Further, the foundation-integrated screw pile 20 may be formed of resin or the like.
図６は、本実施形態の基礎一体型スクリュー杭２０を用いた基礎の施工一例を説明するための図である。図６に示す例では、上記で説明した基礎一体型スクリュー杭２０と同一である３つの基礎一体型スクリュー杭２０Ａ～２０Ｃが地面に打設されており、更に１つの基礎一体型スクリュー杭２０Ｄの打設が行われる様子が示されている。なお、図６に示す例では、４つの基礎一体型スクリュー杭２０が使用されているが、こうした例に限定されず、１つ～３つ、または５つ以上の基礎一体型スクリュー杭２０が使用されてもよい。また、図６に示す例では、理解用の容易のため、１つの基礎一体型スクリュー杭２０Ｃについて、地中に打ち込まれている部分を破線で示している。 FIG. 6 is a diagram for explaining an example of construction of a foundation using the foundation-integrated screw pile 20 of this embodiment. In the example shown in FIG. 6, three foundation-integrated screw piles 20A to 20C, which are the same as the foundation-integrated screw pile 20 described above, are driven into the ground, and one foundation-integrated screw pile 20D is driven into the ground. It shows how pouring is done. In the example shown in FIG. 6, four foundation-integrated screw piles 20 are used, but the example is not limited to this, and one to three, or five or more foundation-integrated screw piles 20 may be used. may be done. Furthermore, in the example shown in FIG. 6, for ease of understanding, the portion of one foundation-integrated screw pile 20C that is driven into the ground is shown by a broken line.
上記した基礎一体型スクリュー杭２０は、例えば公知の建設機械によって地面に回転させて打設することができる。ここで、建設機械は、一例として、基礎一体型スクリュー杭２０の上面部４２の縁部または側面部４８を把持するものとしてもよいし、上面部４２の貫通孔４４を通じて基礎一体型スクリュー杭２０を把持するものとしてもよい。基礎一体型スクリュー杭２０を地面に打設する際には、基礎部４０は必ずしも地中に埋められなくてもよいが、地面との隙間ができないように、基礎一体型スクリュー杭２０Ｃの破線部で示すように基礎部４０の一部が地面に埋められてもよい。この場合には、一例として、予め地面を少し掘っておき、基礎一体型スクリュー杭２０を打設した後に基礎部４０周辺を土または砂利などで覆わせることなどが行われてもよい。 The above-described foundation-integrated screw pile 20 can be rotated and driven into the ground using, for example, a known construction machine. Here, the construction machine may grasp the edge or side surface 48 of the upper surface part 42 of the foundation-integrated screw pile 20, or may hold the foundation-integrated screw pile 20 through the through hole 44 of the upper surface part 42, for example. It may also be something to hold. When driving the foundation-integrated screw pile 20 into the ground, the foundation part 40 does not necessarily have to be buried in the ground, but the broken line part of the foundation-integrated screw pile 20C is A part of the foundation part 40 may be buried in the ground as shown in FIG. In this case, for example, the ground may be dug a little in advance, and after driving the foundation-integrated screw pile 20, the area around the foundation 40 may be covered with soil or gravel.
図６に示すように、複数の基礎一体型スクリュー杭２０を使用する場合には、一例として基礎部４０の向きが互いに平行または垂直となるように各基礎一体型スクリュー杭２０の打設量が調節されるとよい。なお、この場合には、最大、スクリュー羽根３８のピッチ（例えば１０ｍｍ）の半分の寸法だけ、地面から基礎部４０が突出する高さに誤差が生じ得る。一般的にコンクリート基礎等においても上端面には多少の高さバラつきが生じ得るものであり、基礎部４０の高さバラつきについては、公知のスペーサまたは基礎一体型スクリュー杭２０の上部に取り付けられる機構等によって調整されるとよい。 As shown in FIG. 6, when using a plurality of foundation-integrated screw piles 20, for example, the driving amount of each foundation-integrated screw pile 20 is set so that the orientation of the foundation parts 40 is parallel or perpendicular to each other. It would be nice if it could be adjusted. In this case, an error may occur in the height at which the base portion 40 protrudes from the ground by a maximum of half the pitch (for example, 10 mm) of the screw blades 38. In general, even in concrete foundations, there may be some height variation on the upper end surface, and the height variation of the foundation part 40 can be fixed by using a known spacer or a mechanism attached to the top of the foundation-integrated screw pile 20. It would be better to adjust it by etc.
本実施形態の基礎一体型スクリュー杭２０では、杭部３０と基礎部４０とが一体に構成されているため、基礎一体型スクリュー杭２０を打設した後に別途架台などを取り付けなくもて、見栄えが良い基礎を作成することができる。基礎一体型スクリュー杭２０で作成された基礎に対しては、一例として、上面部４２の貫通孔４４を利用して締結具によって設置物が取り付けられる。この場合には、側面部４８に形成された貫通孔４９に治具または手を挿入して、締結具の締結が行われてもよい。ただし、設置物は、貫通孔４４を利用して取り付けられることに限定されず、一例として、上面部４２または側面部４８に対して溶接またはビス止めなどで直接に取り付けられてもよい。こうした本実施形態の基礎一体型スクリュー杭２０によれば、作業工数が少なく見栄えが良い基礎を作成することができる。また、基礎の撤去作業も容易であると共に、別の場所などで基礎一体型スクリュー杭２０を再使用することもできる。 In the foundation-integrated screw pile 20 of this embodiment, the pile part 30 and the foundation part 40 are integrally constructed, so that after driving the foundation-integrated screw pile 20, there is no need to separately attach a frame, etc., and the appearance is improved. can create a good foundation. For example, an installation object is attached to a foundation made of the foundation-integrated screw pile 20 using a fastener using the through hole 44 of the upper surface part 42. In this case, the fastener may be fastened by inserting a jig or a hand into the through hole 49 formed in the side surface portion 48. However, the installation object is not limited to being attached using the through hole 44, and may be attached directly to the top surface portion 42 or the side surface portion 48 by welding or screwing, for example. According to the foundation-integrated screw pile 20 of the present embodiment, it is possible to create a foundation with a good appearance and fewer man-hours. Moreover, the work of removing the foundation is easy, and the foundation-integrated screw pile 20 can be reused at another location.
以上、本発明の実施の形態について説明してきたが、上記した発明の実施の形態は、本発明の理解を容易にするためのものであり、本発明を限定するものではない。本発明は、その趣旨を逸脱することなく、変更、改良され得るとともに、本発明にはその均等物が含まれることはもちろんである。また、上述した課題の少なくとも一部を解決できる範囲、または、効果の少なくとも一部を奏する範囲において、実施形態および変形例の任意の組み合わせが可能であり、特許請求の範囲および明細書に記載された各構成要素の任意の組み合わせ、または、省略が可能である。 Although the embodiments of the present invention have been described above, the embodiments of the invention described above are for facilitating understanding of the present invention, and are not intended to limit the present invention. The present invention may be modified and improved without departing from its spirit, and it goes without saying that the present invention includes equivalents thereof. Further, any combination of the embodiments and modifications is possible as long as at least part of the above-mentioned problems can be solved or at least part of the effects can be achieved, and the embodiments and modifications can be combined in any way as long as they are not described in the claims and the specification. Any combination or omission of each component is possible.
２０…基礎一体型スクリュー杭
３０…杭部
３２…杭本体
３４…貫通孔
３８…スクリュー羽根
４０…基礎部
４２…上面部
４４…貫通孔（第１の貫通孔）
４６…貫通孔
４８…側面部
４８Ａ…短辺側面部
４９…貫通孔（第２の貫通孔）
20...Foundation integrated screw pile 30...Pile part 32...Pile main body 34...Through hole 38...Screw blade 40...Foundation part 42...Top part 44...Through hole (first through hole)
46...Through hole 48...Side surface part 48A...Short side side part 49...Through hole (second through hole)
Claims (6)
前記杭部と一体に構成されて前記長手方向に対して垂直な板面を画定する矩形の上面部と、前記上面部の各辺から前記杭部の先端に向かって前記長手方向に伸びる側面部と、を有する基礎部と、
を備え、
前記上面部には、複数の第１の貫通孔が前記杭部の軸心に対して対称な位置に形成されている、
基礎一体型スクリュー杭。 a pile portion having a screw blade provided in a spiral shape and extending in the longitudinal direction;
a rectangular upper surface portion that is integrally formed with the pile portion and defines a plate surface perpendicular to the longitudinal direction; and a side surface portion that extends in the longitudinal direction from each side of the upper surface portion toward the tip of the pile portion. and a base portion having;
Equipped with
A plurality of first through holes are formed in the upper surface portion at symmetrical positions with respect to the axis of the pile portion,
Foundation-integrated screw pile.
前記杭部と前記基礎部とを用意する工程と、
前記杭部と前記基礎部とを一体に溶融金属に浸漬させて表面に金属皮膜を形成させる工程と、
を含む基礎一体型スクリュー杭を製造する方法。 A method for manufacturing a foundation-integrated screw pile according to any one of claims 1 to 5, comprising:
a step of preparing the pile part and the foundation part;
immersing the pile portion and the foundation portion together in molten metal to form a metal film on the surface;
A method of manufacturing a foundation-integrated screw pile including:
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| US20080181729A1 (en) * | 2007-01-31 | 2008-07-31 | Daryl Scott Van Horn | Deep Foundation Construction Bracket and System |
| JP2014173357A (en) * | 2013-03-11 | 2014-09-22 | Aplus:Kk | Spiral pile and method for storing the same |
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| JP2017066844A (en) * | 2015-10-03 | 2017-04-06 | 株式会社ビル技研 | Sink-and-float preventing parts for screw pile, screw pile and method for constructing foundation pile using screw pile |
| KR101912324B1 (en) * | 2018-04-25 | 2018-10-26 | 주식회사 신흥산업 | screw pile and construction method of retaing wall |
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| JP3047063U (en) * | 1997-09-11 | 1998-03-31 | 北海工営株式会社 | Anchor pile |
| US20080181729A1 (en) * | 2007-01-31 | 2008-07-31 | Daryl Scott Van Horn | Deep Foundation Construction Bracket and System |
| JP2014173357A (en) * | 2013-03-11 | 2014-09-22 | Aplus:Kk | Spiral pile and method for storing the same |
| JP2015143457A (en) * | 2013-12-24 | 2015-08-06 | 株式会社電源群馬 | Ground screw, spacer therefor and construction method thereof |
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| KR101912324B1 (en) * | 2018-04-25 | 2018-10-26 | 주식회사 신흥산업 | screw pile and construction method of retaing wall |
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