JP2014101647A - Steel pile and method of application of steel pile - Google Patents

Steel pile and method of application of steel pile Download PDF

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JP2014101647A
JP2014101647A JP2012252995A JP2012252995A JP2014101647A JP 2014101647 A JP2014101647 A JP 2014101647A JP 2012252995 A JP2012252995 A JP 2012252995A JP 2012252995 A JP2012252995 A JP 2012252995A JP 2014101647 A JP2014101647 A JP 2014101647A
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pile
steel
steel pile
main body
piles
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Takashi Yamada
隆 山田
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Yamada Co Ltd
Yamada KK
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Yamada Co Ltd
Yamada KK
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Abstract

PROBLEM TO BE SOLVED: To efficiently insert a steel pile into the ground by substantially I-shaping an axially vertical cross section of a main body in the same as a sectional shape of a train rail, and improve the steel pile in a viewpoint of effective resource utilization by using a used train rail as the steel pile.SOLUTION: An axially vertical cross section of a main body of a steel pile is formed in the same as or substantially I-shaped similarly to a sectional shape of a train rail. In particular, the main body is formed from a used train rail and used as a soil improvement pile, a foundation pile, a retaining wall pile, a connecting wall pile, an earth retaining pile or the like.

Description

本発明は、土木工事分野で用いられる鋼製杭及び鋼製杭の使用方法に関する。   The present invention relates to a steel pile used in the field of civil engineering and a method for using the steel pile.

従来より、地盤改良等のために、地面に挿入する杭として鋼製杭が用いられてきた。例えば、特許文献１に示される鋼製杭は、Ｈ鋼杭である。このＨ鋼杭を、回転式杭打機で地盤に対して回転圧入していく。   Conventionally, steel piles have been used as piles to be inserted into the ground for ground improvement and the like. For example, a steel pile shown in Patent Document 1 is an H steel pile. This H steel pile is rotationally press-fitted into the ground with a rotary pile driver.

特開平７−２３８５４３号公報JP 7-238543 A

しかしながら、従来のＨ鋼で作られた鋼製杭（Ｈ鋼杭）は、辺部が鰓状に長く突出していることから、回転圧入時の地盤に対する抵抗が大きく、効率的に地盤に挿入することが困難である。また、用いられる鋼製杭（Ｈ鋼杭）は、最終的には地盤に埋没してしまい人目に触れる物ではないにも関わらず、杭専用に新たに作られた物であり、何らかの鋼材を再熔解することなく再利用する場合に比べ、資源の有効利用の観点で劣っている。   However, steel piles (H steel piles) made of conventional H steel have long sides protruding in a bowl shape, and therefore have a large resistance to the ground during rotary press-fitting and are efficiently inserted into the ground. Is difficult. In addition, the steel pile used (H steel pile) is a thing newly made exclusively for the pile, although it is not a thing that will be buried in the ground and eventually touched by humans. Compared to reuse without remelting, it is inferior in terms of effective use of resources.

本発明は、このような事情に鑑みてなされたもので、効率よく地盤に挿入可能で、資源の有効利用の観点に優れた鋼製杭及び鋼製杭の使用方法を提供することにある。   The present invention has been made in view of such circumstances, and it is an object of the present invention to provide a steel pile that can be efficiently inserted into the ground and is excellent in terms of effective use of resources and a method for using the steel pile.

請求項１記載の鋼製杭は、本体の軸垂直断面形状が、電車レールの断面形状と同形又は類似形の略Ｉ字状であることを特徴とする。   The steel pile according to claim 1 is characterized in that the axial vertical cross-sectional shape of the main body is substantially I-shaped which is the same or similar to the cross-sectional shape of the train rail.

請求項２記載の鋼製杭は、本体の下端に、螺旋翼を備えることを特徴とする。   The steel pile according to claim 2 is provided with a spiral wing at the lower end of the main body.

請求項３記載の鋼製杭は、本体の下端が、略鏃状に切削されていることを特徴とする。   The steel pile according to claim 3 is characterized in that the lower end of the main body is cut into a substantially bowl shape.

請求項４記載の鋼製杭は、本体が、電車レールであることを特徴とする。   The steel pile according to claim 4 is characterized in that the main body is a train rail.

請求項５記載の鋼製杭は、本体が、使用済みの電車レールであることを特徴とする。   The steel pile according to claim 5 is characterized in that the main body is a used train rail.

請求項６記載の鋼製杭の使用方法は、請求項１〜請求項５のいずれかに記載の鋼製杭を、地盤改良杭として用いることを特徴とする。   The method for using a steel pile according to claim 6 is characterized in that the steel pile according to any one of claims 1 to 5 is used as a ground improvement pile.

請求項７記載の鋼製杭の使用方法は、請求項１〜請求項５のいずれかに記載の鋼製杭を、基礎杭として用いることを特徴とする。   The method for using a steel pile according to claim 7 is characterized in that the steel pile according to any one of claims 1 to 5 is used as a foundation pile.

請求項８記載の鋼製杭の使用方法は、請求項１〜請求項５のいずれかに記載の鋼製杭を、擁壁パネル用杭として用いることを特徴とする。   The method for using a steel pile according to claim 8 is characterized in that the steel pile according to any one of claims 1 to 5 is used as a retaining wall panel pile.

請求項９記載の鋼製杭の使用方法は、請求項１〜請求項５のいずれかに記載の鋼製杭を、連壁用杭として用いることを特徴とする。   The method for using a steel pile according to claim 9 is characterized in that the steel pile according to any one of claims 1 to 5 is used as a pile for a continuous wall.

請求項１０記載の鋼製杭の使用方法は、請求項１〜請求項５のいずれかに記載の鋼製杭を、土留用杭として用いることを特徴とする。   The method for using a steel pile according to claim 10 is characterized in that the steel pile according to any one of claims 1 to 5 is used as a pile for earth retaining.

本願の発明によれば、本体の軸垂直断面形状が、電車レールの断面形状と同形の略Ｉ字状であることから、効率よく地盤に挿入可能で、また、鋼製杭として使用済みの電車レールを用いることで、資源の有効利用の観点に優れている。   According to the invention of the present application, since the axial vertical cross-sectional shape of the main body is substantially I-shaped that is the same as the cross-sectional shape of the train rail, it can be efficiently inserted into the ground and used as a steel pile. By using rails, it is excellent in terms of effective use of resources.

本発明に係る鋼製杭の使用方法の一例を示す説明図である。It is explanatory drawing which shows an example of the usage method of the steel pile which concerns on this invention. 同鋼製杭の本体の軸垂直断面形状の例を示す説明図である。It is explanatory drawing which shows the example of the axial vertical cross-sectional shape of the main body of the steel pile. 同鋼製杭に螺旋翼を装着した様子を示す説明図である。It is explanatory drawing which shows a mode that the spiral wing | blade was mounted | worn with the steel pile. 同鋼製杭の下端を略鏃状に切削した様子を示す説明図である。It is explanatory drawing which shows a mode that the lower end of the steel pile was cut in substantially bowl shape.

以下、本発明の形態について図面を参照しながら具体的に説明する。図１は、本発明に係る鋼製杭の使用方法の一例を示す説明図である。図２は、同鋼製杭の本体の軸垂直断面形状の例を示す説明図である。図３は、同鋼製杭に螺旋翼を装着した様子を示す説明図である。図４は、同鋼製杭の下端を略鏃状に切削した様子を示す説明図である。   Hereinafter, embodiments of the present invention will be specifically described with reference to the drawings. Drawing 1 is an explanatory view showing an example of the usage method of the steel pile concerning the present invention. FIG. 2 is an explanatory view showing an example of an axial vertical cross-sectional shape of the main body of the steel pile. Drawing 3 is an explanatory view showing signs that a spiral wing was attached to the steel pile. Drawing 4 is an explanatory view showing signs that the lower end of the steel pile was cut in the shape of a bowl.

図における鋼製杭１０（１０ａ〜１０ｄ），１２，１４は、地盤Ｇに挿入する土木工事分野で用いられる鋼製の杭である。鋼製杭１０（１０ａ〜１０ｄ），１２，１４は、長尺で、本体の軸垂直断面形状が、電車レールの断面形状と同形又は類似形の略Ｉ字状である（図３）。   The steel piles 10 (10a to 10d), 12, and 14 in the figure are steel piles used in the civil engineering field to be inserted into the ground G. The steel piles 10 (10a to 10d), 12, and 14 are long, and the axial vertical cross-sectional shape of the main body is substantially I-shaped that is the same as or similar to the cross-sectional shape of the train rail (FIG. 3).

本体の軸垂直断面形状がよりＩ字状に近い形状としては、例えば、図３（ａ）に示す鋼製杭１０ａがある。鋼製杭１０ａは、例えば、ＪＩＳ Ｇ３１９２に規定されるもので、土木工事の種類にもよるため限定されないが、高さ（Ｈ）２００ｍｍ前後、辺（Ｂ）１００ｍｍ前後のものを使用することができる。尚、鋼製杭１０（１０ａ〜１０ｄ），１２，１４の長さに関しては、用いる土木工事の種類等により、適宜定めるようにすればよい。   As a shape in which the axial vertical cross-sectional shape of the main body is closer to an I shape, for example, there is a steel pile 10a shown in FIG. The steel pile 10a is specified in, for example, JIS G3192 and is not limited because it depends on the type of civil engineering work. However, a steel pile 10a having a height (H) of about 200 mm and a side (B) of about 100 mm may be used. it can. The lengths of the steel piles 10 (10a to 10d), 12, and 14 may be appropriately determined depending on the type of civil engineering work to be used.

また、本体の軸垂直断面形状が、電車レールの断面形状と同形の略Ｉ字状としては、例えば、図３（ｂ）〜（ｄ）に示す鋼製杭１０ｂ〜１０ｄがある。鋼製杭１０ｂ〜１０ｄの断面形状は、ＪＩＳ Ｅ１１０１に規定されるもので、これらに類した形状であればよい。鋼製杭１０ｂ〜１０ｄは、土木工事の種類にもよるため限定されないが、ＪＩＳ Ｅ１１０１で規定されるところの５０ｋｇレールや６０ｋｇレール等を使用することができる。ここで、電車レールとは、鉄道用レール（軌条）に限らず、車両の車輪を支え、その上を円滑に走らせる細長い鋼材一般を指すものとする。   Further, examples of the substantially vertical I-shaped cross-sectional shape of the main body that is the same as the cross-sectional shape of the train rail include steel piles 10b to 10d shown in FIGS. The cross-sectional shape of the steel piles 10b to 10d is defined in JIS E1101, and may be a shape similar to these. The steel piles 10b to 10d are not limited because they depend on the type of civil engineering work, but 50 kg rails, 60 kg rails and the like as defined in JIS E1101 can be used. Here, the train rail is not limited to railroad rails (rails), and generally refers to an elongated steel material that supports the wheels of a vehicle and runs smoothly on the wheels.

具体的な鋼製杭１０ｂ〜１０ｄとしては、実際に電車レールとして用いられるレールを用いることができる。また、新品の電車レールに限らず、使用済みの電車レールであってもよい。   As concrete steel piles 10b to 10d, rails that are actually used as train rails can be used. Moreover, it is not limited to a new train rail but may be a used train rail.

このような鋼製杭１０（１０ａ〜１０ｄ），１２，１４を、各種の土木工事において、地盤Ｇに打ち込み、回転圧入等の方法で挿入する。図１（ａ）及び（ｂ）に示すものは、地盤Ｇの地盤改良のため、鋼製杭１０を地盤改良杭として、杭打機２によって地盤Ｇに回転圧入される様子である。このように、鋼製杭１０（１０ａ〜１０ｄ），１２，１４を、地盤改良杭として、用いることができる。   Such steel piles 10 (10a to 10d), 12, and 14 are driven into the ground G and inserted by a method such as rotary press fitting in various civil engineering works. 1 (a) and 1 (b) show a state in which the steel pile 10 is used as a ground improvement pile for the ground improvement of the ground G, and the pile G is rotated and press-fitted into the ground G. Thus, steel pile 10 (10a-10d), 12, 14 can be used as a ground improvement pile.

尚、土木工事の種類や地盤Ｇの固さ等によっては、鋼製杭１０（１０ａ〜１０ｄ），１２，１４の下端端面の形状のままでは、地盤Ｇへの挿入がスムーズに行われない場合がある。このような場合には、図３に示すように、鋼製杭１２の本体の下端に、螺旋翼２０を装着し、鋼製杭１２を回転させながら地盤Ｇに挿入するようにすればよい。螺旋翼２０は、略円錐形で、外周面にスクリュー羽根２２が設けられている。   Depending on the type of civil engineering work and the hardness of the ground G, the shape of the bottom end face of the steel piles 10 (10a to 10d), 12, 14 may not be smoothly inserted into the ground G. There is. In such a case, as shown in FIG. 3, the spiral blade 20 may be attached to the lower end of the main body of the steel pile 12 and inserted into the ground G while rotating the steel pile 12. The spiral blade 20 has a substantially conical shape and is provided with screw blades 22 on the outer peripheral surface.

また、図４に示すように、鋼製杭１４の本体の下端を、略鏃状に切削するようにしてもよい。このように、本体の下端に螺旋翼２０を設けたり、本体の下端を略鏃状に切削するようにすることで、地盤Ｇにスムーズに挿入することができるようになる。尚、螺旋翼２０の形状や、下端部１４ａの切削の形状は、土木工事の種類や地盤Ｇの状態等により適宜定めればよく、限定されるものではない。   Moreover, as shown in FIG. 4, you may make it cut the lower end of the main body of the steel pile 14 in substantially bowl shape. As described above, the spiral blade 20 is provided at the lower end of the main body, or the lower end of the main body is cut into a substantially bowl shape, so that it can be smoothly inserted into the ground G. The shape of the spiral blade 20 and the cutting shape of the lower end portion 14a may be appropriately determined depending on the type of civil engineering work, the state of the ground G, and the like, and are not limited.

上述では、鋼製杭１０（１０ａ〜１０ｄ），１２，１４の利用方法として、地盤改良杭として使用する場合を説明したが、それ以外の土木工事においても、用いることが可能である。   Although the case where it uses as a ground improvement pile was demonstrated as the utilization method of steel piles 10 (10a-10d), 12, and 14 in the above, it can be used also in other civil engineering works.

具体的には、まず、鋼製杭１０（１０ａ〜１０ｄ），１２，１４を基礎杭として用いることができる。基礎杭とは、主に軟弱な地盤における構造物の建設において、浅い基礎では構造物を支えることができない地盤の場合に、構造物を支える基礎として深く打ち込む杭である。   Specifically, first, steel piles 10 (10a to 10d), 12, and 14 can be used as foundation piles. A foundation pile is a pile that is driven deeply as a foundation to support a structure when the structure cannot be supported by a shallow foundation in the construction of a structure mainly on soft ground.

また、鋼製杭１０（１０ａ〜１０ｄ），１２，１４を擁壁パネル用杭として用いることもできる。擁壁パネル用杭とは、擁壁パネルを地盤に構築するために擁壁パネルを支える基礎として地盤に深く打ち込む杭である。尚、擁壁パネルは、土壌の安息角を超える大きな高低差を地面に設けたいときに、土壌の横圧に抗して斜面の崩壊を防ぐために構築される壁状の構造物である。   Moreover, the steel piles 10 (10a-10d), 12, and 14 can also be used as a retaining wall panel pile. A retaining wall panel pile is a pile that is driven deeply into the ground as a foundation for supporting the retaining wall panel in order to construct the retaining wall panel on the ground. The retaining wall panel is a wall-like structure that is constructed to prevent the collapse of the slope against the lateral pressure of the soil when it is desired to provide a large height difference on the ground that exceeds the angle of repose of the soil.

さらに、鋼製杭１０（１０ａ〜１０ｄ），１２，１４を連壁用杭として用いることもできる。連壁用杭とは、地中に溝状の孔を掘削して溝孔内に挿入される杭で、杭が挿入された溝孔にコンクリートが打設されることで、地中に連続した地中壁が作られる。また、地中に構築される地中壁を補助的に支える杭としても、用いることができる。   Furthermore, the steel piles 10 (10a to 10d), 12, and 14 can be used as the piles for the continuous wall. A pile for continuous walls is a pile that is excavated into a groove hole in the ground and inserted into the groove hole, and the concrete is placed in the groove hole in which the pile is inserted. An underground wall is created. Moreover, it can be used also as a pile which supports the underground wall constructed | assembled underground.

さらに、鋼製杭１０（１０ａ〜１０ｄ），１２，１４を土留用杭として用いることもできる。土留用杭とは、掘削した法面や斜面の土砂の崩壊を防止するために地盤に挿入される仮設の杭である。   Furthermore, the steel piles 10 (10a to 10d), 12, and 14 can also be used as the piles for earth retaining. The soil retaining pile is a temporary pile inserted into the ground to prevent the collapse of the excavated slope and slope.

以上のような本実施の形態における鋼製杭１０（１０ａ〜１０ｄ），１２，１４は、辺部が鰓状に長く突出している従来のＨ鋼で作られた鋼製杭（Ｈ鋼杭）に比べ辺が短く、効率よく地盤に挿入可能である。尚、電車レールの場合は特に、各部の肉厚も相応にあり、従来のＨ鋼杭に劣らない剛性を有している。   The steel piles 10 (10a to 10d), 12, and 14 in the present embodiment as described above are steel piles (H steel piles) made of conventional H steel with side portions protruding in a long bowl shape. Compared with, the sides are shorter and can be inserted into the ground efficiently. In particular, in the case of a train rail, the thickness of each part is also appropriate, and it has rigidity comparable to that of a conventional H steel pile.

また、従来の鋼製杭（Ｈ鋼杭）は、杭専用として製造される場合が多いが、鋼製杭１０（１０ａ〜１０ｄ），１２，１４として電車レールを用いることで、他の用途で大量に生産されているものを転用することで、コストを抑えることができる。   In addition, conventional steel piles (H steel piles) are often manufactured exclusively for piles, but by using train rails as steel piles 10 (10a to 10d), 12, and 14 for other uses. By diverting what is produced in large quantities, costs can be reduced.

さらに、従来の鋼製杭（Ｈ鋼杭）は、地盤改良杭、基礎杭、擁壁パネル用杭、連壁用杭、土留用杭等であって最終的には地盤に埋没してしまい人目に触れる物ではないにも関わらず、杭専用に新たに作られた物であり、何らかの鋼材を再熔解することなく再利用する場合に比べ、資源の有効利用の観点で劣っている。これに対し、鋼製杭１０（１０ａ〜１０ｄ），１２，１４として使用済みの電車レールを用いることで、従来の鋼製杭（Ｈ鋼杭）に比べ、資源の有効利用の観点に優れている。   Furthermore, conventional steel piles (H steel piles) are ground improvement piles, foundation piles, retaining wall panel piles, continuous wall piles, retaining piles, etc., which are eventually buried in the ground. Although it is not a thing that touches, it is a thing newly made only for piles, and it is inferior in terms of effective use of resources compared to the case of reusing without remelting some steel materials. On the other hand, by using used train rails as steel piles 10 (10a to 10d), 12, and 14, it is superior in terms of effective use of resources compared to conventional steel piles (H steel piles). Yes.

以上のように、本発明によれば、効率よく地盤に挿入可能で、資源の有効利用の観点に優れた鋼製杭及び鋼製杭の使用方法を提供することができる。   As described above, according to the present invention, it is possible to provide a steel pile that can be efficiently inserted into the ground and is excellent in terms of effective use of resources, and a method for using the steel pile.

２・・・・・杭打機
１０・・・・鋼製杭
１０ａ・・・鋼製杭
１０ｂ・・・鋼製杭
１０ｃ・・・鋼製杭
１０ｄ・・・鋼製杭
１２・・・・鋼製杭
１４・・・・鋼製杭
１４ａ・・・下端部
２０・・・・螺旋翼
２２・・・・スクリュー羽根 2 ... Pile driver 10 ... Steel pile 10a ... Steel pile 10b ... Steel pile 10c ... Steel pile 10d ... Steel pile 12 ... Steel pile 14 ... Steel pile 14a ... Lower end 20 ... Spiral blade 22 ... Screw blade

Claims (10)

本体の軸垂直断面形状が、電車レールの断面形状と同形又は類似形の略Ｉ字状であることを特徴とする鋼製杭。   A steel pile characterized in that the vertical cross-sectional shape of the main body is a substantially I-shape that is the same or similar to the cross-sectional shape of the train rail. 前記本体の下端に、螺旋翼を備えることを特徴とする請求項１記載の鋼製杭。   The steel pile according to claim 1, further comprising a spiral wing at a lower end of the main body. 前記本体の下端が、略鏃状に切削されていることを特徴とする請求項１記載の鋼製杭。   The steel pile according to claim 1, wherein a lower end of the main body is cut into a substantially bowl shape. 前記本体が、電車レールであることを特徴とする請求項１〜請求項３のいずれかに記載の鋼製杭。   The steel pile according to any one of claims 1 to 3, wherein the main body is a train rail. 前記本体が、使用済みの電車レールであることを特徴とする請求項１〜請求項３のいずれかに記載の鋼製杭。   The steel pile according to any one of claims 1 to 3, wherein the main body is a used train rail. 請求項１〜請求項５のいずれかに記載の鋼製杭を、地盤改良杭として用いることを特徴とする鋼製杭の使用方法。   The steel pile according to any one of claims 1 to 5, wherein the steel pile is used as a ground improvement pile. 請求項１〜請求項５のいずれかに記載の鋼製杭を、基礎杭として用いることを特徴とする鋼製杭の使用方法。   A method for using a steel pile, wherein the steel pile according to any one of claims 1 to 5 is used as a foundation pile. 請求項１〜請求項５のいずれかに記載の鋼製杭を、擁壁パネル用杭として用いることを特徴とする鋼製杭の使用方法。   The steel pile according to any one of claims 1 to 5, wherein the steel pile is used as a retaining wall panel pile. 請求項１〜請求項５のいずれかに記載の鋼製杭を、連壁用杭として用いることを特徴とする鋼製杭の使用方法。   The steel pile according to any one of claims 1 to 5, wherein the steel pile is used as a pile for a continuous wall. 請求項１〜請求項５のいずれかに記載の鋼製杭を、土留用杭として用いることを特徴とする鋼製杭の使用方法。   A method for using a steel pile, wherein the steel pile according to any one of claims 1 to 5 is used as a pile for earth retaining.
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JPS5685031A (en) * 1979-12-12 1981-07-10 Tadashi Kido Construction work of foundation
JPS61146536U (en) * 1985-03-04 1986-09-10
JPS6286225A (en) * 1985-10-14 1987-04-20 Eijiro Kurahashi Pile
JPS634123A (en) * 1986-06-24 1988-01-09 Nisshin Kogyo Kk Water-proof construction for underground structure
JPS6347417A (en) * 1986-08-14 1988-02-29 Dai Ichi Kogyo Seiyaku Co Ltd Foundation pile for relieving negative frictional force
JPH06272249A (en) * 1992-09-25 1994-09-27 Masaya Nagashima Erecting device for shape steel pile and shape steel pile used for the device
JPH10159094A (en) * 1996-11-30 1998-06-16 Kumagai Gumi Co Ltd Timbering structure of earth retaining wall
JPH10212736A (en) * 1997-01-29 1998-08-11 Hiromasa Watanabe Excavator
JPH1143955A (en) * 1997-07-28 1999-02-16 Maeda Corp Basement constructing method in existing building
JPH11323968A (en) * 1998-05-20 1999-11-26 Katsuya Hiraoka Concrete panel and execution method of building/ constructed body therewith
JP2005030048A (en) * 2003-07-11 2005-02-03 Shimizu Corp Horizontal structural member, tension member, and compression member
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019137978A (en) * 2018-02-06 2019-08-22 東日本旅客鉄道株式会社 Reinforcing member for skeleton and building
JP7029751B2 (en) 2018-02-06 2022-03-04 東日本旅客鉄道株式会社 Reinforcing members for the skeleton and buildings

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