JPH02147724A - Under-bracing and pole erecting method therewith - Google Patents
Under-bracing and pole erecting method therewithInfo
- Publication number
- JPH02147724A JPH02147724A JP30259788A JP30259788A JPH02147724A JP H02147724 A JPH02147724 A JP H02147724A JP 30259788 A JP30259788 A JP 30259788A JP 30259788 A JP30259788 A JP 30259788A JP H02147724 A JPH02147724 A JP H02147724A
- Authority
- JP
- Japan
- Prior art keywords
- pole
- earth
- hole
- bearing pressure
- sand
- 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 8
- 239000004576 sand Substances 0.000 claims abstract description 15
- 238000003780 insertion Methods 0.000 claims abstract description 10
- 230000037431 insertion Effects 0.000 claims abstract description 10
- 239000000945 filler Substances 0.000 claims abstract description 6
- 239000000463 material Substances 0.000 claims abstract description 6
- 238000006243 chemical reaction Methods 0.000 claims description 12
- 238000010276 construction Methods 0.000 abstract description 5
- 239000004567 concrete Substances 0.000 description 9
- 239000002689 soil Substances 0.000 description 5
- 238000006073 displacement reaction Methods 0.000 description 3
- 230000000630 rising effect Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 239000011178 precast concrete Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Foundations (AREA)
Abstract
Description
【発明の詳細な説明】
「産業上の利用分野」
この発明は、コンクリートポールや鋼管ポール等の種々
のポールを建値する際に用いられるポールの倒壊を防止
することを目的をした根かせ、およびこれを用いたポー
ルの建値方法に関するものである。[Detailed Description of the Invention] "Industrial Application Field" This invention relates to a rooting system for preventing the collapse of various poles such as concrete poles and steel pipe poles, and This is related to the pole pricing method using this.
［従来の技術、発明が解決せんとする問題点」従来、配
電線用、通信線用、あるいは照明用等の各種ポールの倒
壊を防止する方法として、ポール建値時にポール本体下
部周囲にＵボルトを包着してこのＵボルトの両端に、短
柱状のプレキャストコンクリートブロック体を締結固定
し、このブロック体を埋戻し土砂中に埋設したり、ポー
ル本体下端部の周囲に現場打ちコンクリートを円環状に
根巻きする等により、ポール全体の重心を低くし、根入
れ部の横方向の土圧反力を増大させ、ポールにかかる横
方向の外力に対する支持力を増大させるようにした方法
が知られている。[Prior art and problems to be solved by the invention] Conventionally, as a method to prevent the collapse of various poles for power distribution lines, communication lines, lighting, etc., U-bolts were installed around the bottom of the pole when the pole was opened. A short column-shaped precast concrete block is fastened and fixed to both ends of this U-bolt, and this block is buried in backfilling earth and sand, or cast-in-place concrete is placed in a ring around the lower end of the pole body. There is a known method of lowering the center of gravity of the entire pole by wrapping the pole, increasing the lateral soil pressure reaction force at the rooting part, and increasing the supporting force against lateral external forces applied to the pole. There is.
しかしながら、上記従来の倒壊防止方法において、コン
クリートブロック体をポール本体下部に固着する方法で
は、このブロフク体がポール下部の片側において根入れ
部の横方向の土圧反力を増大させるに過ぎず、ポールの
支持力のほとんどはポール下部の埋戻し土の土圧反力に
依存しているため、施工後直ちに張力が作用するような
自立柱（支線を取らない柱）には使用できない等の問題
があった。However, in the conventional collapse prevention method described above, in which the concrete block body is fixed to the lower part of the pole body, this block body only increases the lateral earth pressure reaction force of the rooted part on one side of the lower part of the pole. Most of the supporting capacity of a pole depends on the earth pressure reaction force of the backfill soil at the bottom of the pole, so there are problems such as it cannot be used for free-standing columns (pillars that do not have support wires) that are subject to tension immediately after construction. was there.
また、現場打ちコンクリートで根まきをする方法では、
前述のコンクリートブロック体に比較して施工直後の横
方向の外力に対しては有効に作用するが、現場施工であ
るため作業手間が嵩み、しかもコンクリートの硬化によ
って支持力が得られるまでに時間がかかる等の問題があ
った。In addition, in the method of spreading roots with cast-in-place concrete,
Compared to the concrete block body described above, it acts more effectively against external forces in the lateral direction immediately after construction, but since it is done on-site, the work is more labor-intensive, and it takes time for the concrete to harden and gain supporting capacity. There were some problems, such as it taking a lot of water.
「問題点を解決するための手段」
この発明は前記従来の課題を解決するために互いに相対
して接合する接合面と、埋戻し土砂の横方向からの土圧
を受ける複数の横支圧面と、この横支圧面間に下方から
の土圧反力を受ける底支圧面に沿って形成された埋戻し
土砂の土圧を上方から受ける上支圧面とが設けられ、接
合面の中央部にポール下部周囲の一部を嵌合可能な凹部
を設けてなる複数のブロック体を、各凹部にポールを嵌
合しながら相互の接合面において接合してボルトにより
締結一体止し、凹部とポールとの間隙内に詰め物を充填
することにより、ポール下部全周を安定して包持して埋
戻し土砂の下方、横方向及び垂直方向の土圧反力が十分
に得られると共に、短時間で簡単に施工できるようにし
た根かせ、およびこれを用いたポールの建値方法を提案
するものである。"Means for Solving the Problems" In order to solve the above-mentioned conventional problems, the present invention provides joint surfaces that are joined to each other facing each other, and a plurality of lateral bearing pressure surfaces that receive earth pressure from the lateral direction of backfill earth and sand. , between these lateral bearing pressure surfaces, there is provided an upper bearing pressure surface that receives the earth pressure of the backfill earth and sand formed along the bottom bearing pressure surface that receives the earth pressure reaction force from below from above, and a pole is installed in the center of the joint surface. A plurality of block bodies each having a recess that can be fitted in a part of the lower circumference are joined together at the mutual joint surfaces while fitting a pole into each recess, and are fastened together with bolts, and the recess and the pole are connected. By filling the gap with filler, the entire lower part of the pole is stably wrapped around the entire circumference of the pole, and sufficient earth pressure reaction force in the downward, lateral and vertical directions of the backfill earth and sand can be obtained. This paper proposes a construction-enabled net-kase and a method for pricing poles using this.
「実施例」
以下この発明を図面に示す実施例について説明すると、
この発明の根かせは第２図に示すように縦に２分割され
た２個一対のブロック体１１を、第１図に示すようにポ
ール２の下部周囲を包持するように締結一体止すること
により構成されるようになっている。"Embodiments" Below, embodiments of the present invention shown in the drawings will be described.
In this invention, a pair of block bodies 11, which are vertically divided into two as shown in FIG. 2, are fastened together so as to wrap around the lower part of a pole 2, as shown in FIG. It is structured by this.
両ブロック体ｌは、下方からの土圧反力を受ける底支圧
面３から上向きに立上げた立上部４の垂直な前面に互い
に突き合わせて接合する接合面５が、また後面には埋戻
し土砂の横方向の土圧を受ける横支圧面６が形成されて
いる。Both block bodies 1 have a joint surface 5 that butts and joins to each other on the vertical front surface of a standing portion 4 that stands upward from a bottom bearing pressure surface 3 that receives earth pressure reaction force from below, and a joint surface 5 that is connected to the vertical surface of the rising portion 4 that receives earth pressure reaction force from below. A lateral bearing pressure surface 6 that receives lateral earth pressure is formed.
また、接合面５の中央部にはポール２の下部半周部を嵌
合可能な横断面半円弧型の凹部７が形成され、両ブロッ
ク体１．ｌ相互を接合したとき互いに合体した凹部７に
より径の大小異なるポール２を挿通可能な孔径に余裕の
ある挿通孔を形成するようになっている。Further, a recess 7 having a semi-circular cross-sectional shape into which the lower half circumference of the pole 2 can be fitted is formed in the center of the joint surface 5, and both block bodies 1. When they are joined together, the concave portions 7 that merge together form an insertion hole with a sufficient diameter through which poles 2 of different sizes can be inserted.
立上部４の中間部の後方には、底支圧面３がら上向きに
立上げた立上部４°が一体に設けられ、その両側面に横
支圧面６，６°が形成されている。Behind the middle part of the rising part 4, a rising part 4° raised upward from the bottom bearing pressure surface 3 is integrally provided, and lateral bearing pressure surfaces 6, 6° are formed on both sides thereof.
立上部４．４′の各横支圧面６．６゛間には底支圧面に
沿って平板部８．８が一体に設けられ、その上面に埋戻
し土砂の上方からの土圧を受ける上支圧面９が形成され
ている。A flat plate part 8.8 is integrally provided between each lateral bearing pressure surface 6.6' of the upright part 4.4' along the bottom bearing pressure surface, and a flat plate part 8.8 is provided on the upper surface of the flat plate part 8.8 to receive the earth pressure from above of the backfill earth and sand. A bearing surface 9 is formed.
立上部４の左右部には、接合面５と横支圧面６間を貫通
するボルト挿通孔ｌＯが設けられ、またブロック体ｌの
上面には複数個の押手１１が取付けられている。Bolt insertion holes 1O passing through between the joint surface 5 and the lateral bearing pressure surface 6 are provided on the left and right sides of the upright portion 4, and a plurality of pushers 11 are attached to the upper surface of the block body 1.
以上の構成においてポール２の建値に際しては、第８図
に示すように地盤に上段が下段よりも広い段差状の穴１
２，１２°を掘り、先ず下段の穴１２°にポール２の下
端部を建て込み、その周囲に穴１２’の上端部まで充填
材（埋戻し土砂、あるいは早強セメントを土に混合した
ソイルコンクリート又は急結コンクリート等）Ｓｏを充
填して、ポール２を仮支持しておく。In the above configuration, when setting the price of pole 2, as shown in
2, 12°, first erect the lower end of pole 2 in the lower hole 12°, and fill the surrounding area up to the upper end of hole 12' with filler (backfill earth and sand, or soil mixed with early strength cement). Pole 2 is temporarily supported by filling it with So (concrete, quick setting concrete, etc.).
この状態でポール２の周囲の上段の穴１２内にブロック
体１．１を入れ、その凹部７内にポール２を嵌合しなが
ら、相互の接合面５．５同士を突き合わせて接合し、互
いに連通したボルト挿通孔１０．１０内にボルト１３を
挿通して両ブロック体１．１を締結一体止する。In this state, the block body 1.1 is inserted into the upper hole 12 around the pole 2, and while the pole 2 is fitted into the recess 7, the joint surfaces 5.5 are butted against each other and joined. A bolt 13 is inserted into the communicating bolt insertion hole 10.10, and both block bodies 1.1 are fastened and fixed together.
そして、合体した凹部７，７とポール２との間隙内に目
の細かい砂を氷詰めするか、間詰めモルタルなどの詰め
物１４を充填し、ポール２と根かせとしての両ブロック
体１．１相互を一体化する。Then, the space between the combined concave portions 7, 7 and the pole 2 is filled with ice with fine sand, or a filler 14 such as mortar is filled, and both the pole 2 and the block body 1.1 as a root anchor are filled. Integrate each other.
次いで、ポール２の周囲の上段の穴１２内に埋戻し土砂
Ｓを充填して突き固め、施工を完了する。Next, the upper hole 12 around the pole 2 is filled with backfill earth and sand S and compacted to complete the construction.
これによって、ポール２はその下部周囲をブロック体１
．１に一体的に均一に包持され、ブロック体１の自重と
、横支圧面６，６°及び上支圧面９に作用するかぶりの
大きい埋戻し土砂Ｓの土圧により確実に支持され、また
ポール２に風圧等による偶力を生じた場合、底支圧面３
で下方からの土圧反力を支えると共に、横支圧面６．６
°及び上支圧面９との土圧支持力によりこの偶力に強力
に抵抗し、転倒を防止することになる。As a result, the pole 2 has its lower circumference covered by the block body 1.
．． 1, and is reliably supported by the own weight of the block body 1 and the earth pressure of the backfilling soil S with a large cover acting on the lateral bearing pressure surfaces 6, 6° and the upper bearing pressure surface 9, and If a couple is generated on pole 2 due to wind pressure, etc., the bottom bearing pressure surface 3
In addition to supporting the earth pressure reaction force from below, the lateral bearing pressure surface 6.6
The earth pressure supporting force of the upper support pressure surface 9 strongly resists this couple and prevents it from falling.
この発明の根かせと従来のＵボルトに取付けたブロック
を用いてポールを建植し、その頂部に約３２Ｋｇの荷重
を加えて１週間後の頂部の変位を測定したところ、この
考案の根かせを用いた場合には変位がなく、従来のもの
では約３ｃｍ程度変位していた。A pole was erected using the roots of this invention and blocks attached to conventional U-bolts, a load of approximately 32 kg was applied to the top of the pole, and the displacement of the top was measured one week later. When using the conventional one, there was no displacement, whereas with the conventional one, the displacement was about 3 cm.
従って、この考案の根かせを用いることにより、従来の
コンクリートの根巻きによる根かせと同等な支持力が得
られることが分かった。Therefore, it was found that by using the root shackles of this invention, a supporting force equivalent to that of conventional concrete root shackles can be obtained.
なお、図示の実施例ではブロック体１を２ＷＡ一体止す
る例を示したが、同様の構造でブロック体１を２個以上
としてポール２の周囲を一体に包持するように構成して
もよい。In addition, although the illustrated embodiment shows an example in which the block body 1 is integrally fixed with 2WA, it is also possible to configure two or more block bodies 1 with a similar structure so as to integrally surround the periphery of the pole 2. .
また、ポール２が角柱である場合には、凹部７もこれに
応じた横断面形に形成する。Further, when the pole 2 is a prism, the recess 7 is also formed to have a corresponding cross-sectional shape.
「発明の効果」
以上の通りこの発明によれば、互いに相対して接合する
接合面と、埋戻し土砂の横方向からの土圧を受ける複数
の横支圧面と、この横支圧面間に下方からの土圧反力を
受ける底支圧面に沿って形成された埋戻し土砂の土圧を
上方から受ける複数の上支圧面とが設けられ、接合面の
中央部にポール下部周囲の一部を嵌合可能な凹部を設け
てなる複数のブロック体を、相互の接合面において接合
して中央部に各凹部が合体したポール挿通孔が形成され
るように締結一体止してなるので、一体止したブロック
体によりポール下部全周を安定して均等に包持して、そ
の自重と、埋戻し土砂の下方、横方向及び垂直方向の土
圧反力により十分な支持力が得られ、施工後直ちに自立
柱として建植することが可能となると共に、現場施工も
少なく短時間で極めて簡単に施工することができる。"Effects of the Invention" As described above, according to the present invention, there are joint surfaces facing each other, a plurality of lateral bearing pressure surfaces that receive earth pressure from the lateral direction of backfill earth, and a downward direction between the lateral bearing pressure surfaces. A plurality of upper bearing pressure surfaces are provided along the bottom bearing pressure surface, which receives the earth pressure of the backfill soil from above, and a plurality of upper bearing pressure surfaces are provided along the bottom bearing pressure surface, which receives the earth pressure reaction force from above. A plurality of block bodies each having recesses that can be fitted are joined together at their mutual joint surfaces, and are fastened together so that a pole insertion hole is formed in the center where each recess is combined, so that it can be secured in one piece. The block body stably and evenly supports the entire circumference of the lower part of the pole, and sufficient supporting force is obtained from its own weight and the downward, lateral, and vertical earth pressure reaction forces of the backfill earth and sand. Not only can it be immediately erected as a free-standing pillar, but it can also be constructed extremely easily in a short time with little on-site construction.
また、ブロック体の合体した凹部により形成されるポー
ル挿通孔とポールとの間隙内に詰め物を充填するので、
径の大小異なるポールにも適応でき、ブロック体とポー
ルを確実に一体化することができる。In addition, since the filling material is filled in the gap between the pole insertion hole and the pole formed by the combined recess of the block body,
It can be adapted to poles with different diameters, and the block body and pole can be reliably integrated.
第１図はこの発明の根かせの組立て状態を示す斜視図、
第２図はこの発明に係るブロック体の斜視図、第３図は
同正面図、第４図は同背面図、第５図は同側面図、第６
図は同平面図、第７図は開底支圧面図、第８図はこの発
明の根かせを用いてポールの建植した状態を示す縦断側
面図である。
ｌ・・ブロック体、２・・ポール、
３・・底支圧面、４．４° ・・立上部、５・・接合面
、６．６° ・・横支圧面、７・・凹部、８・・平板部
、９・・上支圧面、１０・・ボルト挿通孔、１１・・把
手。
１２．１２° ・・穴、１３・・ボルト、１４・・詰め
物、Ｓｏ ・・充填材、
Ｓ
埋戻し土砂。FIG. 1 is a perspective view showing the assembled state of the root shank of the present invention;
FIG. 2 is a perspective view of the block body according to the present invention, FIG. 3 is a front view thereof, FIG. 4 is a rear view thereof, FIG. 5 is a side view thereof, and FIG.
7 is a plan view of the same, FIG. 7 is an open-bottom bearing surface view, and FIG. 8 is a longitudinal side view showing a state in which the pole is erected using the root shackle of the present invention. l...Block body, 2...Pole, 3...Bottom bearing surface, 4.4°...Rise part, 5...Joint surface, 6.6°...Side bearing pressure surface, 7...Concavity, 8...・Flat plate part, 9. Upper bearing pressure surface, 10. Bolt insertion hole, 11. Handle. 12.12°...hole, 13...bolt, 14...filling, So...filling material, S backfill earth and sand.
Claims (1)
方向からの土圧を受ける複数の横支圧面と、前記横支圧
面間に下方からの土圧反力を受ける底支圧面に沿って形
成された埋戻し土砂の土圧を上方から受ける上支圧面と
が設けられ、前記接合面の中央部にポール下部周囲の一
部を嵌合可能な凹部を設けてなる複数のブロック体を、
相互の接合面において接合して中央部に前記各凹部が合
体したポール挿通孔が形成されるように締結一体化して
なることを特徴とする根かせ。 ２）地盤に上段が下段よりも広い段差状の穴を掘り、先
ず下段の穴にポールの下端部を建て込み、その周囲に穴
の上端部まで充填材を充填してポールを仮支持し、この
状態で互いに相対して接合する接合面と、埋戻し土砂の
横方向からの土圧を受ける複数の横支圧面と、前記横支
圧面間に下方からの土圧反力を受ける底支圧面に沿って
形成された埋戻し土砂の土圧を上方から受ける上支圧面
とが設けられ、前記接合面の中央部にポール下部周囲の
一部を嵌合可能な凹部を設けてなる複数のブロック体を
前記上段の穴内に入れ、このブロック体をその各凹部に
前記ポールを嵌合しながら相互の接合面において接合し
てボルトにより締結一体化し、前記ポール挿通孔とポー
ル間の間隙に詰め物を充填し、前記上段の穴内に埋戻し
土砂を埋戻すことを特徴とする根かせを用いたポールの
建植方法。[Scope of Claims] 1) Joint surfaces that face each other and are joined together, a plurality of lateral bearing pressure surfaces that receive earth pressure from the lateral direction of backfill earth and sand, and an earth pressure reaction force from below between the lateral bearing pressure surfaces. an upper bearing pressure surface that receives the earth pressure of the backfill earth and sand formed along the bottom bearing pressure surface from above, and a recess into which a part of the lower part of the pole can be fitted is provided in the center of the joint surface. Multiple block letters,
A root shank characterized in that they are joined at mutual joint surfaces and are fastened and integrated so that a pole insertion hole in which the respective recesses are combined is formed in the center part. 2) Dig a step-shaped hole in the ground where the upper level is wider than the lower level, first erect the lower end of the pole into the lower hole, fill the surrounding area with filler material up to the upper end of the hole to temporarily support the pole, In this state, there are joint surfaces facing each other and joining together, a plurality of lateral bearing pressure surfaces that receive the earth pressure from the lateral direction of the backfill earth, and a bottom bearing pressure surface that receives the earth pressure reaction force from below between the lateral bearing pressure surfaces. and an upper bearing pressure surface that receives the earth pressure of the backfill earth and sand formed along the direction from above, and a plurality of blocks having a recess in the center of the joint surface into which a part of the lower part of the pole can be fitted. The block body is inserted into the upper hole, and the poles are fitted into the respective recesses of the block body, and the joint surfaces of the block body are joined together by bolts, and a filling material is placed in the gap between the pole insertion hole and the pole. A method for planting a pole using a root shank, characterized by filling the hole and backfilling the upper hole with earth and sand.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30259788A JPH02147724A (en) | 1988-11-30 | 1988-11-30 | Under-bracing and pole erecting method therewith |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30259788A JPH02147724A (en) | 1988-11-30 | 1988-11-30 | Under-bracing and pole erecting method therewith |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02147724A true JPH02147724A (en) | 1990-06-06 |
Family
ID=17910892
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP30259788A Pending JPH02147724A (en) | 1988-11-30 | 1988-11-30 | Under-bracing and pole erecting method therewith |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02147724A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0653640U (en) * | 1992-12-18 | 1994-07-22 | 関東帝国ヒューム管株式会社 | Foundation block for lighting |
| JP2009033951A (en) * | 2007-07-30 | 2009-02-12 | Daewon Electric Co Ltd | Method of construction work of circular arc shape aerial line electric pole under bracing member using expansion excavation unit for auger crane |
| JP2012026103A (en) * | 2010-07-21 | 2012-02-09 | Nippon Concrete Ind Co Ltd | Root wrapping device for pole |
| JP2021130986A (en) * | 2020-02-20 | 2021-09-09 | Ykk Ap株式会社 | Support structure of column and installation method of column |
-
1988
- 1988-11-30 JP JP30259788A patent/JPH02147724A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0653640U (en) * | 1992-12-18 | 1994-07-22 | 関東帝国ヒューム管株式会社 | Foundation block for lighting |
| JP2009033951A (en) * | 2007-07-30 | 2009-02-12 | Daewon Electric Co Ltd | Method of construction work of circular arc shape aerial line electric pole under bracing member using expansion excavation unit for auger crane |
| JP2012026103A (en) * | 2010-07-21 | 2012-02-09 | Nippon Concrete Ind Co Ltd | Root wrapping device for pole |
| JP2021130986A (en) * | 2020-02-20 | 2021-09-09 | Ykk Ap株式会社 | Support structure of column and installation method of column |
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