JP2005002791A5 - - Google Patents
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- JP2005002791A5 JP2005002791A5 JP2004252122A JP2004252122A JP2005002791A5 JP 2005002791 A5 JP2005002791 A5 JP 2005002791A5 JP 2004252122 A JP2004252122 A JP 2004252122A JP 2004252122 A JP2004252122 A JP 2004252122A JP 2005002791 A5 JP2005002791 A5 JP 2005002791A5
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- support pile
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- 230000000875 corresponding Effects 0.000 description 11
- 230000001808 coupling Effects 0.000 description 10
- 238000010168 coupling process Methods 0.000 description 10
- 238000005859 coupling reaction Methods 0.000 description 10
- 230000002093 peripheral Effects 0.000 description 10
- 230000001629 suppression Effects 0.000 description 8
- 238000010586 diagram Methods 0.000 description 4
- 238000003780 insertion Methods 0.000 description 4
- 238000005452 bending Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 240000006802 Vicia sativa Species 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000023298 conjugation with cellular fusion Effects 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000021037 unidirectional conjugation Effects 0.000 description 1
Description
本発明は、例えば、支持杭、地滑り抑止杭、土留め柱列杭、構造体の柱等に使われる柱状体に関し、詳しくは、一方の柱状体に筒部を設けると共に、他方の柱状体端部に軸部を設けて、柱状体軸芯方向で隣り合う柱状体の前記筒部と前記軸部とを嵌合自在に構成し、互いに嵌合した隣り合う柱状体の前記筒部と前記軸部とを抜け止め状態で接続自在に構成してある連結部を備えた柱状体に関する。 The present invention relates to a columnar body used for, for example, a support pile, a landslide suppression pile, a retaining column pile, a structural column, and the like. Specifically, one columnar body is provided with a cylindrical portion, and the other columnar body end is provided. part is provided a shaft portion, said cylindrical portion of the columnar body and said tubular portion of the columnar body are adjacent in the columnar body axis direction and the shaft portion fit freely configured, adjacent fitted to each other physician It relates columnar body having a tare Ru concatenation unit to freely configure connected in a state retaining the said shaft portion.
従来、この種の柱状体としては、図８に示すように、互いに嵌合した柱状体Ａ１，Ａ２に対して縦断面上で作用する軸方向力の作用線Ｓ上よりも柱状体Ａ１，Ａ２の径方向内側にキー連結部Ｒが配置形成されたものがあった。 Conventionally, as this type of columnar body, as shown in FIG. 8, the columnar bodies A1 and A2 are more than on the line of action S of the axial force acting on the longitudinal sections of the mutually fitted columnar bodies A1 and A2. In some cases, the key connecting portion R is arranged and formed on the inner side in the radial direction.
上述した従来の柱状体によれば、キー連結部Ｒを、互いに嵌合した柱状体Ａ１，Ａ２に対する縦断面上で作用する引き抜き力の作用線Ｓ上よりも柱状体の半径方向内側に配置形成されてあるため、例えば、柱状体Ａ１，Ａ２に引き抜き力が作用したときには、図６ （ロ）の作用説明図に示すように、キー連結部Ｒに対して引き抜き力がズレた位置で作用するため、キー１８に回転モーメントが作用して外れ易くなり、筒部端部１ＴではＢ方向に曲げモーメントが働いて筒部端部１Ｔが外側に変形し易くなると共に、軸部端部２ＴではＡ方向に曲げモーメントが働いて軸部端部２Ｔが内側に変形し易くなる。このとき、引き抜き力が強く作用して上記両モーメントが大きく働いた場合には、内向き溝部６と外向き溝部１２とに跨って嵌め込んであるキー部材Ｋの係合が外れて、筒部１と軸部２との接続が解除される虞があった。 According to the above-described conventional columnar body, the key connecting portion R is arranged and formed on the radially inner side of the columnar body with respect to the action line S of the pulling force acting on the longitudinal section with respect to the columnar bodies A1 and A2 fitted to each other. Therefore, for example, when a pulling force acts on the columnar bodies A1 and A2, the pulling force acts on the key connecting portion R at a position shifted as shown in the operation explanatory diagram of FIG. Therefore, a rotational moment acts on the key 18 and it is easy to come off, and a bending moment acts in the B direction at the tube end 1T, and the tube end 1T is easily deformed outward, and at the shaft end 2T, A A bending moment acts in the direction, and the shaft end 2T is easily deformed inward. At this time, in the case where the pulling force acts strongly and the above two moments are exerted greatly, the engagement of the key member K fitted over the inward groove portion 6 and the outward groove portion 12 is disengaged, and the cylinder portion There is a possibility that the connection between the shaft 1 and the shaft portion 2 is released.
従って、本発明の目的は、上記問題点を解消し、柱状体に引き抜き力が強く作用したとしても、筒部端部及び軸部端部が変形するのを防止して、内向き溝部と外向き溝部とに跨って嵌め込んであるキー部材の係合が外れるのを防止し、筒部と軸部との接続が解除される虞のない柱状体を提供するところにある。 Therefore, an object of the present invention is to solve the above problems and prevent the cylindrical end and the shaft end from being deformed even if a pulling force is exerted on the columnar body, thereby preventing the inward groove portion and the outer portion from being deformed. The present invention is to provide a columnar body that prevents the key member that is fitted over the direction groove portion from being disengaged and does not cause the connection between the tube portion and the shaft portion to be released.
請求項１の発明の特徴構成は、一方の柱状体に筒部を設けると共に、他方の柱状体端部に軸部を設けて、柱状体軸芯方向で隣り合う柱状体の前記筒部と前記軸部とを嵌合自在に構成し、互いに嵌合した隣り合う柱状体の前記筒部と前記軸部とを抜け止め状態で接続自在に構成してある連結部を備えた柱状体において、互いに嵌合した隣り合う柱状体に対して縦断面上で柱状体壁部に作用する軸方向力の作用線上に、前記連結部を配置形成すると共に、前記筒部と前記軸部との嵌合部分は、外径が前記柱状体の他部より大径に、且つ、厚肉に形成してあるところにある。
本発明の第２の特徴構成は、前記筒部と前記軸部の嵌合部における一方の柱状体と他方の柱状体との外周部の合わせ部分どうしは、前記柱状体軸芯方向に面一に形成してあるところにある。
本発明の第３の特徴構成は、前記筒部と前記軸部の嵌合部に、両柱状体どうしの結合に用いる結合操作用ボルトを、前記柱状体の径方向に沿って外周側から螺進操作自在に設け、前記結合操作用ボルトは、取付状態においてその頭部が前記嵌合部表面より外方へ突出しないように設けられているところにある。
According to the first aspect of the present invention , a cylindrical portion is provided on one columnar body, and a shaft portion is provided on an end portion of the other columnar body. In the columnar bodies provided with connecting portions that are configured so that the shaft portions can be fitted together and the cylindrical portions and the shaft portions of the adjacent columnar bodies fitted to each other can be connected in a state of being prevented from coming off. The connecting portion is arranged and formed on the line of action of the axial force acting on the columnar wall portion on the longitudinal section with respect to the adjacent columnar body fitted, and the fitting portion between the cylindrical portion and the shaft portion It is a larger diameter than the other portion of the outer diameter of the columnar body, and, in the roller is formed thicker.
According to a second characteristic configuration of the present invention, the mating portions of the outer peripheral portions of one columnar body and the other columnar body in the fitting portion of the cylindrical portion and the shaft portion are flush with each other in the axial direction of the columnar body. It is where it is formed.
According to a third characteristic configuration of the present invention, a coupling operation bolt used for coupling the two columnar bodies to the fitting portion between the cylindrical portion and the shaft portion is screwed from the outer peripheral side along the radial direction of the columnar bodies. The coupling operation bolt is provided so as to be freely advanced, and is provided such that its head does not protrude outward from the surface of the fitting portion in the attached state.
請求項１の発明により、互いに嵌合した隣り合う柱状体に対して縦断面上で柱状体壁部に作用する軸方向力の作用線上に、前記連結部を配置形成してあるから、柱状体に引き抜き力が作用したとしても、筒部端部及び軸部端部が変形するのを防止することができるようになった。
つまり、本件だと、例えば、柱状体に引き抜き力が作用したときには、図６（イ）の作用説明図に示すように、連結部Ｒに対して引き抜き力が真っ直ぐに作用し、従来例のごとく、筒部端部１Ｔが外側へ変形するモーメントや、軸部端部２Ｔが内側へ変形するモーメントが働き難くなるから、内向き溝部６と外向き溝部１２とに跨って嵌め込んであるキー部材Ｋの係合が外れるといった心配がない。
その結果、引き抜き力が強く作用したとしても、筒部と軸部との接続が解除される虞のない柱状体を提供することができるようになった。
また、前記筒部と前記軸部との嵌合部分は、外径が前記柱状体の他部より大径に、且つ、厚肉に形成してあるから、連結部での各材料の有効断面積を充分に確保することができる。
本発明の第２の特徴構成によれば、本発明の第１の特徴構成による上述の作用効果を叶えることができるのに加えて、柱状体どうしの外周部の合わせ部分が柱状体軸芯方向に面一に形成してあるから、両者間に段差ができ難い。
本発明の第３の特徴構成によれば、本発明の第１又は２の特徴構成による上述の作用効果を叶えることができるのに加えて、結合操作用ボルトが柱状体の嵌合部外周面上に突出しないから、例えば、嵌合部外周面に結合操作用ボルトが突出して障害となることを防止できることが可能となる。
The invention of claim 1, the action line of the axial force acting on the columnar body wall portion on longitudinal section with respect to the columnar body adjacent fitted together, since the front Killen forming unit is disposed formed, Even if a pulling force is applied to the columnar body, it is possible to prevent the end of the cylindrical portion and the end of the shaft from being deformed.
That is, when it present, for example, when a force pulling the columnar body is applied, as shown in explanatory diagram of the operation of FIG. 6 (b), pulling force acts straight against consolidated unit R, in the prior art As described above, since the moment that the tube end 1T is deformed outward and the moment that the shaft end 2T is deformed are difficult to work, the key that is fitted over the inward groove 6 and the outward groove 12 There is no concern that the member K is disengaged.
As a result, it is possible to provide a columnar body that is not likely to be disconnected from the cylindrical portion and the shaft portion even when the pulling force is strongly applied.
In addition, the fitting portion between the cylindrical portion and the shaft portion has an outer diameter larger than that of the other portion of the columnar body and is formed thicker. A sufficient area can be secured.
According to the second characteristic configuration of the present invention, in addition to being able to achieve the above-described operation and effect of the first characteristic configuration of the present invention, the alignment portion of the outer peripheral portions of the columnar bodies is in the columnar axis direction. Since they are formed flush with each other, it is difficult to form a step between them.
According to the third characteristic configuration of the present invention, in addition to being able to achieve the above-described operational effects according to the first or second characteristic configuration of the present invention, the coupling operation bolt is provided on the outer peripheral surface of the fitting portion of the columnar body. Since it does not protrude upward, for example, it can be prevented that the coupling operation bolt protrudes on the outer peripheral surface of the fitting portion and becomes an obstacle.
以下、本発明の実施の形態について柱状体の一例である鋼管製の支持杭について図面を参照して説明する。尚、図面において従来例と同一の符号で表示した部分は、同一又は相当の部分を示している。 Hereinafter, a steel pipe support pile as an example of a columnar body according to an embodiment of the present invention will be described with reference to the drawings. In the drawings, the parts indicated by the same reference numerals as those in the conventional example indicate the same or corresponding parts.
図1 、４に示すように、Ａ１は上支持杭（一方の柱状体に相当）、Ａ２は下支持杭（他方の柱状体に相当）である。上支持杭Ａ１には、下支持杭Ａ２と結合される下端に雌形の筒部１が溶接３により下方に突出して設けられ、また、下支持杭Ａ２には、上支持杭Ａ１と結合される上端に、上記筒部１に貫入、嵌合する軸部２が溶接３により上方に突出して設けられている。 As shown in FIGS. 1 and 4, A1 is an upper support pile (corresponding to one columnar body) , and A2 is a lower support pile (corresponding to the other columnar body) . The upper support pile A1 is provided with a female cylindrical portion 1 protruding downward by welding 3 at the lower end coupled to the lower support pile A2, and the lower support pile A2 is coupled to the upper support pile A1. A shaft portion 2 that penetrates and fits into the tube portion 1 is provided at the upper end of the tube so as to protrude upward by welding 3.
前記筒部１は、内径が上支持杭Ａ１、下支持杭Ａ２の管厚中心径と略同径とした筒状をなしており、その内面は後述する軸部２が嵌合する筒部内周面部４に形成されているとともに、その筒部内周面部４における筒部１の基端側に形成の段部１Ｄには、周溝５が設けられている。そして、前記筒部内周面部４には、上下に間隔をおいて断面方向に複数の内向き溝部６が周設されている。また、筒部１の下端には、周方向に間隔をおいて複数の切欠部７が設けられている。 The cylindrical part 1 has a cylindrical shape whose inner diameter is substantially the same as the pipe thickness center diameter of the upper support pile A1 and the lower support pile A2, and the inner surface of the cylindrical part 1 is an inner periphery of a cylinder part to which a shaft part 2 described later is fitted. A circumferential groove 5 is provided in the step portion 1D formed on the base portion side of the cylindrical portion 1 in the cylindrical inner peripheral surface portion 4 while being formed in the surface portion 4. A plurality of inward groove portions 6 are circumferentially provided on the inner peripheral surface portion 4 of the cylindrical portion at intervals in the vertical direction in the cross-sectional direction. A plurality of notches 7 are provided at the lower end of the cylindrical portion 1 at intervals in the circumferential direction.
前記軸部２は、外径が上支持杭Ａ１、下支持杭Ａ２の外径と同径な部分と前記外径よりも径方向外方に膨出させた部分とで形成された基軸部８に続き、外周が上支持杭Ａ１、下支持杭Ａ２の管厚中心径と略同径とした前記筒部１の筒部内周面部４と係接する軸部外周面部１０に形成した嵌挿部９により形成され、軸部先端部２Ｓには筒部１の周溝５と嵌合する突条１１が設けられている。そして、嵌挿部９外周の軸部外周面部１０には、筒部１の内向き溝部６と対応する位置に外向き溝部１２が周設されている。また、基軸部８の上部には、筒部１の筒部先端部１Ｓと接合する接合凹部１３が周設されているとともに、その周方向に間隔をおいて、筒部１の切欠部７と対応する位置に、切欠部７と同じ厚さで上下に所要の深さを有する切欠凹部１４が設けられ、各切欠凹部１４の奥壁部には複数のネジ孔１５が設けられている。 The shaft portion 2 has a base shaft portion 8 formed by a portion whose outer diameter is the same as the outer diameter of the upper support pile A1 and the lower support pile A2 and a portion bulged radially outward from the outer diameter. Subsequently, the insertion portion 9 formed on the shaft outer peripheral surface portion 10 that engages with the cylindrical inner peripheral surface portion 4 of the cylindrical portion 1 whose outer periphery is substantially the same diameter as the tube thickness center diameter of the upper support pile A1 and the lower support pile A2. And a protrusion 11 that fits with the circumferential groove 5 of the cylindrical portion 1 is provided at the tip end portion 2S of the shaft portion. The shaft portion outer peripheral surface portion 10 on the outer periphery of the fitting insertion portion 9 is provided with an outward groove portion 12 at a position corresponding to the inward groove portion 6 of the cylindrical portion 1. In addition, a joint recess 13 that joins the tube tip 1S of the tube portion 1 is provided around the upper portion of the base shaft portion 8 and is spaced apart from the notch 7 of the tube portion 1 in the circumferential direction. At the corresponding position, a notch recess 14 having the same thickness as the notch 7 and having a required depth is provided, and a plurality of screw holes 15 are provided in the back wall portion of each notch recess 14.
そして、図１，２，４に示すように、上記の各内向き溝部６には、筒部１の外周より、周方向に間隔をおいて複数設けられたネジ孔１６が連通されているとともに、その内向き溝部６内には、ネジ孔１６に螺合させた、セットボルト（結合操作用ボルトに相当）１７の操作によって、内向き溝部６内から、嵌挿部９の外向き溝部１２内と内向き溝溝６内に跨る位置まで移動可能な円弧キー１８（キー部材Ｋの一例）が収容されている。この円弧キー１８を移動させる構造は、例えば図５に示すように、セットボルト１７により行う。セットボルト１７は、その基端部にネジ孔１６と螺合する右ネジの頭部１７ａを有し、先端部に円弧キー１８に設けた左ネジ（逆ネジ）と螺合する尾部１７ｂを有しており、セットボルト１７を正（右）回転させてネジ込めば円弧キー１８が前進し、逆（左）回転させれば円弧キー１８が後退するようになっている。なお、円弧キー１８を移動させる構造はこれに限定されるものではない。 As shown in FIGS. 1, 2, and 4, each inward groove portion 6 is connected to a plurality of screw holes 16 spaced from each other in the circumferential direction from the outer periphery of the cylindrical portion 1. In the inward groove 6, the set groove (corresponding to a coupling operation bolt) 17 screwed into the screw hole 16 is operated from the inward groove 6 to the outward groove 12 of the insertion portion 9. An arc key 18 (an example of a key member K) that can move to a position straddling the inside and the inward groove 6 is accommodated. The arc key 18 is moved by a set bolt 17 as shown in FIG. The set bolt 17 has a right-handed screw head portion 17a screwed with the screw hole 16 at the base end portion, and a tail portion 17b screwed with a left-hand screw (reverse screw) provided on the arc key 18 at the distal end portion. When the set bolt 17 is rotated forward (right) and screwed, the arc key 18 moves forward, and when rotated backward (left), the arc key 18 moves backward. The structure for moving the arc key 18 is not limited to this.
また、支持杭を埋設する際に、中堀工法、ソイルセメント合成杭工法、回転埋設杭工法等の支持杭を回転圧入により沈設する工法や沈設にあたって支持杭に回転を与えるその他の工法においては、図１，３，４に示すように、上支持杭Ａ１の筒部１と下支持杭Ａ２の軸部２との相対回転を防止するための回転抑止キー２０を設ける。
前記回転抑止キー２０は、図７に示すように、筒部１の切欠部７と軸部２の切欠凹部１４とにわたって嵌合する形状に形成するとともに、切欠凹部１４に設けられたネジ孔１５と対応する位置にボルト挿通孔２１を設ける。
In addition, when burying support piles, the Nakabori method, soil cement composite pile method, rotary buried pile method, etc. As shown in 1, 3, and 4, a rotation inhibition key 20 is provided to prevent relative rotation between the cylindrical portion 1 of the upper support pile A1 and the shaft portion 2 of the lower support pile A2.
As shown in FIG. 7, the rotation suppression key 20 is formed in a shape that fits over the cutout portion 7 of the cylindrical portion 1 and the cutout recess portion 14 of the shaft portion 2, and a screw hole 15 provided in the cutout recess portion 14. Bolt insertion holes 21 are provided at positions corresponding to
上支持杭Ａ１と下支持杭Ａ２とを縦継ぎするには、上支持杭Ａ１をクレーンで吊り上げ、下支持杭Ａ２の直上に運んで吊り降ろし、筒部１の中に軸部２を挿入して行けば、筒部１の周溝５と軸部２の軸部先端部２Ｓの突溝１１とが接合すると共に、筒部１の筒部先端部１Ｓと接合凹部１３とが接合し、上支持杭Ａ１と下支持杭Ａ２とが嵌合されることになる。そして、上支持杭Ａ１の回転調整により、筒部1 の切欠部７を軸部２の切欠凹部１４に合致させる。 To longitudinally connect the upper support pile A1 and the lower support pile A2, the upper support pile A1 is lifted with a crane, carried directly above the lower support pile A2, suspended, and the shaft portion 2 is inserted into the cylindrical portion 1. The circumferential groove 5 of the cylindrical portion 1 and the projecting groove 11 of the distal end portion 2S of the shaft portion 2 are joined together, and the distal end portion 1S of the tubular portion 1 and the joining recess portion 13 are joined together. The support pile A1 and the lower support pile A2 are fitted. And the notch part 7 of the cylinder part 1 is made to correspond with the notch recessed part 14 of the axial part 2 by rotation adjustment of upper support pile A1.
その後は、切欠部７と切欠凹部１４にわたって回転抑止キー２０を嵌め込み、取付ボルト（結合操作用ボルトに相当）２２をネジ孔１５にネジ込んで固定する。それにより上下両支持杭Ａ１、Ａ２は相対回転不能に結合されることになる。続いて、セットボルト１７を螺進させて、内向き溝部６に収まっている円弧キー１８を外向き溝部１２に向けて押し入れてやる。それによって、円弧キー１８は図５の鎖線で示すように両溝部６，１２に跨って係合することになり、両柱状体Ａ１、Ａ２は円弧キー１８を介して軸芯Ｘ方向への抜き差しが不能に結合されることになる。 Thereafter, the rotation suppression key 20 is fitted over the notch 7 and the notch recess 14, and a mounting bolt (corresponding to a coupling operation bolt) 22 is screwed into the screw hole 15 and fixed. Thereby, the upper and lower support piles A1 and A2 are coupled so as not to be relatively rotatable. Subsequently, the set bolt 17 is screwed, and the arc key 18 accommodated in the inward groove 6 is pushed toward the outward groove 12. As a result, the arc key 18 is engaged across both the groove portions 6 and 12 as shown by the chain line in FIG. 5, and both columnar bodies A1 and A2 are inserted and removed in the direction of the axis X through the arc key 18. Will be combined impossible.
この円弧キー１８を介しての結合では、引き抜き力は内向き溝部６にある両溝側壁のうち、軸芯Ｘ方向における筒部先端側の溝側壁から円弧キー１８を介した剪断力として外向き溝部１２の軸芯Ｘ方向における軸部先端側の溝側壁に伝達される。また、圧縮力は内向き溝部６にある両溝側壁のうち、軸芯Ｘ方向における筒部基端側の溝側壁から円弧キー１８を介した剪断力として外向き溝部１２の軸芯Ｘ方向における軸部基端側の溝側壁に伝達される。
このとき、図１に示すように、内向き溝部６と外向き溝部１２とに跨って円弧キー１８を嵌め込んだキー連結部（連結部に相当）Ｒが、互いに嵌合した隣り合う支持杭Ａ１，Ａ２に対して縦断面上で作用する軸方向力の作用線Ｓ上に配置形成されているため、支持杭Ａ１，Ａ２に引き抜き力が作用したときには、図６（イ）の作用説明図に示すごとく、キー連結部Ｒに対して引き抜き力が真っ直ぐに作用し、図８、及び図６（ロ）に示す作用説明図に示す従来例のごとく、筒部端部１Ｔが外側へ変形するモーメントや、軸部端部２Ｔが内側へ変形するモーメントが働き難くなるから、内向き溝部６と外向き溝部１２とに跨って嵌め込んである円弧キー１８にも回転モーメントが発生しないので、係合が外れるといった心配がなくなる。
尚、軸方向力が作用する方向を、便宜上作用線Ｓと記載したが、互いに嵌合した隣り合う支持杭Ａ１，Ａ２に対する縦断面上において線状に見えるだけであって、柱状体の横断面上において、柱状体の肉厚内の略中央に、ある程度の巾を有した支持杭の形状に沿った連なりとして存在するものである。
In the coupling via the arc key 18, the pulling force is outward as a shearing force via the arc key 18 from the groove side wall on the distal end side of the cylindrical portion in the axial center X direction of both groove side walls in the inward groove portion 6. The groove 12 is transmitted to the groove side wall on the distal end side of the shaft portion in the axis X direction. In addition, the compressive force is a shearing force from the groove side wall on the base end side in the axial center X direction of both the groove side walls in the inward groove portion 6 via the arc key 18 in the axial center X direction of the outward groove portion 12. It is transmitted to the groove side wall on the shaft base end side.
At this time, as shown in FIG. 1, adjacent key piles (corresponding to connecting portions) R into which the arc key 18 is fitted across the inward groove portion 6 and the outward groove portion 12 are fitted to each other. Since it is arranged and formed on the action line S of the axial force acting on the longitudinal section with respect to A1 and A2, when the pulling force acts on the support piles A1 and A2, the action explanatory view of FIG. As shown in FIG. 6, the pulling force acts straight on the key connecting portion R, and the cylindrical end 1T is deformed outward as in the conventional example shown in the operation explanatory diagrams shown in FIGS. Since the moment and the moment at which the shaft end 2T is deformed inward are difficult to work, no rotational moment is also generated in the arc key 18 fitted over the inward groove 6 and the outward groove 12, so There is no need to worry about losing a match.
In addition, although the direction in which the axial force acts is described as the action line S for convenience, it only looks linear on the longitudinal section with respect to the adjacent support piles A1 and A2 fitted to each other. Above, it exists as a series along the shape of the support pile having a certain width at the approximate center in the wall thickness of the columnar body.
〔別実施形態〕
以下に他の実施の形態を説明する。
[Another embodiment]
Other embodiments will be described below.
〈１〉 キー部材Ｋは先の実施形態で説明した円弧キー１８に限るものではなく、例えば、Ｃ形状の弾性リングキーを、内向き溝部もしくは外向き溝部内に収容しておき、筒部と軸部との嵌合操作に伴って、内向き溝部と外向き溝部に跨る状態に嵌入する構成のものにおいても本発明は適用可能である。
〈２〉 キー部材の数、及び、そのキー部材に対応する内向き溝部と外向き溝部の数は先の実施形態で説明した夫々２つづつ設けた構成のものに限るものではなく、１つ以上であればその数は任意である。
〈３〉 上記実施形態では柱状体を回転圧入により沈設する工法や、沈設にあたって柱状体に回転を与えるその他の工法において、上下両柱状体の相対回転を抑止する回転抑止キーを設けた例について説明したが、本発明は上記実施形態に限定されるものではなく、地中に形成した縦穴に落とし込む地滑り抑止杭や、建て込みに使用する構造体の柱等のように回転抑止キーを設ける必要のないものにも適用できる。つまり、キー部材で連結した柱状体において、引き抜き力が作用するものに対して本発明は適用可能であり、その他の構成は任意である。
<1> The key member K is not limited to the arc key 18 described in the previous embodiment. For example, a C-shaped elastic ring key is accommodated in an inward groove portion or an outward groove portion, The present invention can also be applied to a structure that is fitted in a state straddling the inward groove portion and the outward groove portion in accordance with the fitting operation with the shaft portion.
<2> The number of key members and the number of inward groove portions and outward groove portions corresponding to the key members are not limited to the one provided in the embodiment described above, but one each. If it is more, the number is arbitrary.
<3> In the embodiment described above, an example in which a rotation suppression key for suppressing the relative rotation of the upper and lower columnar bodies is provided in the method of laying down the columnar body by rotational press-fitting and the other method of rotating the columnar body during the laying is described. However, the present invention is not limited to the above embodiment, and it is necessary to provide a rotation suppression key such as a landslide suppression pile dropped into a vertical hole formed in the ground or a pillar of a structure used for erection. It can be applied to those that do not. That is, in the columnar bodies connected by the key member, the present invention can be applied to those in which a pulling force acts, and other configurations are arbitrary.
尚、上述のように、図面との対照を便利にするために符号を記したが、該記入により本発明は添付図面の構成に限定されるものではない。また、本発明の要旨を逸脱しない範囲において、種々なる態様で実施し得ることは勿論である。 In addition, as mentioned above, although the code | symbol was written in order to make contrast with drawing convenient, this invention is not limited to the structure of an accompanying drawing by this entry. In addition, it goes without saying that the present invention can be carried out in various modes without departing from the gist of the present invention.
１ 筒部
２ 軸部
１７ セットボルト（結合操作用ボルトに相当）
２２ 取付ボルト（結合操作用ボルトに相当）
Ａ１ 上支持杭（一方の柱状体に相当）
Ａ２ 下支持杭（他方の柱状体に相当）
Ｒ キー連結部（連結部に相当）
Ｓ 作用線
Ｘ 軸芯
1 Tube part 2 Shaft part
17 set bolts (equivalent to bolts for coupling operation)
22 Mounting bolts (corresponding to coupling operation bolts)
A1 Upper support pile (equivalent to one columnar body)
A2 Lower support pile (equivalent to the other columnar body)
R key connecting part (equivalent to connecting part)
S action line X axis
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004252122A JP4632723B2 (en) | 2004-08-31 | 2004-08-31 | Columnar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004252122A JP4632723B2 (en) | 2004-08-31 | 2004-08-31 | Columnar |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000056781A Division JP3679964B2 (en) | 2000-03-02 | 2000-03-02 | Columnar |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2010059582A Division JP5006950B2 (en) | 2010-03-16 | 2010-03-16 | Columnar |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2005002791A JP2005002791A (en) | 2005-01-06 |
| JP2005002791A5 true JP2005002791A5 (en) | 2005-09-08 |
| JP4632723B2 JP4632723B2 (en) | 2011-02-16 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2004252122A Expired - Lifetime JP4632723B2 (en) | 2004-08-31 | 2004-08-31 | Columnar |
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| Country | Link |
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| JP (1) | JP4632723B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105672233B (en) * | 2016-04-15 | 2017-08-15 | 广东华尔辰海上风电工程有限责任公司 | Grouser suspended structure and supporting grouser based on marine independent piling platform |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4923605Y1 (en) * | 1970-03-17 | 1974-06-25 | ||
| JP3228691B2 (en) * | 1997-01-14 | 2001-11-12 | 俊彦 下飯坂 | Steel pipe fittings |
| JPH1181304A (en) * | 1997-09-02 | 1999-03-26 | Hokkaido Electric Power Co Inc:The | Connection structure of steel pipe |
| JP2000046273A (en) * | 1998-07-28 | 2000-02-18 | Kubota Corp | Connection structure of tubular body |
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2004
- 2004-08-31 JP JP2004252122A patent/JP4632723B2/en not_active Expired - Lifetime
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