JP2007277897A

JP2007277897A - Support connecting implement for protective object for avalanche, rock fall and the like

Info

Publication number: JP2007277897A
Application number: JP2006104720A
Authority: JP
Inventors: Yutaka Hosokawa; 細川　　豊
Original assignee: Raiteku KK; Kaihatsu Concrete KK; Wakow Bussan Co Ltd
Current assignee: Raiteku KK; Kaihatsu Concrete KK; Wakow Bussan Co Ltd
Priority date: 2006-04-05
Filing date: 2006-04-05
Publication date: 2007-10-25
Anticipated expiration: 2026-04-05
Also published as: JP4338713B2

Abstract

PROBLEM TO BE SOLVED: To provide a support connecting implement for a protective object for an avalanche, a rock fall and the like which facilitates the transportation and carrying-in of a support, is excellent in constructibility, and enables an upper part of the support to be premanufactured in such a manner as to be standardized. SOLUTION: This support connecting implement 5 connects a lower part 2S of the support which is fixed to a slope, to the upper part 2U of the support which is connected to an upper part of the lower part 2S of the support. The support connecting implement comprises: an upside receiving cylinder 6U for inserting the lower end of the upper part 2U of the support which is provided on the upside; a downside receiving cylinder 6S for inserting the upper part of the lower part 2S of the support which is provided on the downside; a support-side flange joint 12 which is provided on the lower part 2S of the support; and a flange joint 11 which is connected to the flange joint 12 and provided in the cylinder 6S. Thus, the upper end of the lower part 2S of the support is inserted into the cylinder 6S; the lower end of the upper part 2U of the support is inserted into the cylinder 6U; and the lower part 2S of the support is fixed by being inserted into the slope, so that the support of a guard fence can be erected. COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明は、防護柵等の落石・雪崩等防護体の支柱連結具に関する。 The present invention relates to a support pillar connector for a protective body such as a rock fall or avalanche such as a protective fence.

従来から山腹の斜面部等に構築して落石や積雪等を受け止めて道路等への落下、流入を防止する防護柵が知られており、例えば、山腹の斜面部に間隔を置いて縦孔を穿孔し、この縦孔に建て込んだパイプ支柱を並設すると共に、これら各パイプ支柱に複数段のケーブルとともに金網を張設した落石等の防護柵（例えば特許文献１）が提案されている。 Conventionally, protective fences have been known that are constructed on slopes of mountainsides to prevent falling or inflowing on roads etc. by receiving falling rocks and snow, etc.For example, vertical holes are provided at intervals on slopes of mountainsides. There has been proposed a protective fence such as a rock fall (for example, Patent Document 1) in which pipe struts that are drilled and built in the vertical holes are arranged side by side, and a wire mesh is stretched along with a plurality of cables on each of the pipe struts.

また、設定面に間隔をおいて穿孔した複数の縦孔に支柱を建て込み、これら支柱の間に上下に間隔を置いて架設する複数の索条体と共に防護用網体を張設した防護柵（例えば特許文献２）や、セメントを混合した混合材である無収縮モルタルを充填した落石・雪崩等保護構造物用充填鋼管を用い、この充填鋼管を基礎に固定する（例えば特許文献３）ものが知られている。 In addition, a protective fence in which a support net is installed in a plurality of vertical holes drilled at intervals on the setting surface, and a protection net is stretched together with a plurality of cable bodies that are installed with a vertical space between the support columns. (For example, Patent Document 2), or a filled steel pipe for protection structures such as rock fall and avalanche filled with non-shrink mortar which is a mixed material mixed with cement, and this filled steel pipe is fixed to the foundation (for example, Patent Document 3) It has been known.

また、落石などの衝撃を摩擦エネルギーに変換して吸収するものとして、所定の間隔で支柱を設け、各支柱の間に水平ロープ材を水平方向のスライドを許容した状態で係留し、水平ロープ材の両端は固定し、各支柱間を水平ロープ材に掛止させたワイヤ製のネットで遮蔽し、前記水平ロープ材の途上にロープ材を重合させて形成した余長部と、余長部を一定の力で挟持する挟持具とにより、水平ロープ材に設定張力以上の張力が作用したとき、水平ロープ材が一定の摩擦力を保持したまま余長部が伸長して張力を吸収する緩衝部を形成した衝撃吸収柵（例えば特許文献４、特許文献５）が提案されている。 In addition, as a means to absorb impacts such as falling rocks by converting them into frictional energy, support columns are provided at predetermined intervals, and horizontal rope materials are moored in a state that allows horizontal sliding between each support column. Both ends of the cable are fixed, shielded between wires by a wire net hooked on a horizontal rope material, and an extra length portion formed by polymerizing the rope material in the middle of the horizontal rope material, and an extra length portion. A buffer that absorbs tension by extending the extra length of the horizontal rope material while maintaining a constant frictional force when a tension higher than the set tension is applied to the horizontal rope material due to the clamping device that clamps with a constant force A shock absorbing fence (for example, Patent Document 4 and Patent Document 5) in which a slab is formed has been proposed.

また、衝撃吸収杭において、埋設用の筒状体と、上部が地上に突出するように該筒状体に内挿される杭本体と、該筒状体と該杭本体との間に充填される充填材とを備えたもの（例えば特許文献６）がある。
特開平７−１９７４２３号公報特開２００２−１１５２１３号公報特開２００２−２６６３２１号公報特開平６−１９７４２３号公報特開平６−３３７０９号公報特開平９−２０３０３６号公報 In addition, in the shock absorbing pile, a buried cylindrical body, a pile main body inserted into the cylindrical body so that the upper part protrudes on the ground, and a space between the cylindrical body and the pile main body are filled. There exist some (for example, patent documents 6) provided with the filler.
JP-A-7-197423 JP 2002-115213 A JP 2002-266321 A JP-A-6-197423 JP-A-6-33709 JP-A-9-203036

上記特許文献３の防護柵では、斜面に構築した防護柵によって積雪や雪崩等を効果的に受け止めることで、落石や雪崩といった自然災害を抑制することができ、また、特許文献４及び５の衝撃吸収柵では、衝撃を支柱に伝える前に水平ロープ材の一部に形成した緩衝部の摺動により衝撃を吸収することができ、従来に比較して支柱の荷重負荷を軽減できる。 In the protective fence of Patent Document 3, natural disasters such as falling rocks and avalanches can be suppressed by effectively receiving snow and avalanches by the protective fence constructed on the slope. In the absorption fence, the shock can be absorbed by sliding of the buffer portion formed in a part of the horizontal rope material before the impact is transmitted to the support, and the load load of the support can be reduced as compared with the conventional case.

ところで、緩衝部を設けても、この種の防護柵において、支柱の強度が荷重に対する性能に大きく寄与し、支柱の強度を向上するには、支柱自体とともに取付強度を向上する必要がある。このため、基礎に形成した縦孔に支柱の下部を建て込み、所定の取付強度を得るようにしている。 By the way, even if it provides a buffer part, in this kind of guard fence, in order to improve the strength of a support | pillar, the intensity | strength of a support | pillar greatly needs to improve attachment strength with support | pillar itself. For this reason, the lower part of a support | pillar is built in the vertical hole formed in the foundation, and predetermined attachment strength is obtained.

そして、防護柵の設定条件により、支柱が長尺となる場合があり、例えば、雪崩予防柵などでは、積雪に応じた上部柵高さとこれに対応した下部部分が必要となり、支柱が長尺となる。一方、鋼管などを支柱の材料に用いる場合、防錆などの面からメッキ処理が施される。 And depending on the setting conditions of the protective fence, the pillar may be long.For example, in an avalanche prevention fence, the upper fence height corresponding to snow accumulation and the lower part corresponding to this are required, and the pillar is long. Become. On the other hand, when a steel pipe or the like is used as the material for the support, plating is performed from the aspect of rust prevention or the like.

そのようなメッキ処理は、メッキ槽に支柱を漬ける所謂どぶ漬けが行われるが、長尺な支柱を処理できるメッキ層が少なく、支柱が長くなると、製作工程と製作コストの面で不利になる。しかし、上記特許文献のものは、いずれも支柱又は杭に一体物を用いており、このような問題が予想される。 In such plating treatment, so-called soaking is performed in which a support is immersed in a plating tank, but there are few plating layers capable of processing a long support, and if the support becomes longer, it is disadvantageous in terms of manufacturing process and manufacturing cost. However, all of the above-mentioned patent documents use an integrated object for a support or a pile, and such a problem is expected.

加えて、メッキ槽内の高温のメッキ液に支柱を漬けるため、熱影響により支柱に歪みが発生すると、製品誤差が大きくなる。さらに、長尺な支柱は、車載寸法に制限を受け易いと共に、現場搬入時にも制約を受け易く、施工性の低下を招き易い。 In addition, since the support is immersed in the high-temperature plating solution in the plating tank, if the support is distorted due to thermal effects, the product error increases. In addition, the long support column is easily limited by the in-vehicle dimensions, and is also easily restricted at the time of carrying in the field, so that the workability is likely to be deteriorated.

一方、製造面から見ると、支柱の使用される条件や場所などによって支柱の長さが異なる場合が多く、支柱上部は標準寸法に設定できても、地山に建て込む支柱下部の長さを、現場に合わせて変えるため、標準寸法で対応することができず、その都度、異なる長さの支柱を製造する必要がある。 On the other hand, when viewed from the manufacturing side, the length of the column often varies depending on the conditions and place where the column is used. In order to change according to the site, it is not possible to cope with standard dimensions, and it is necessary to manufacture struts of different lengths each time.

このため、支柱は、多品種少量生産となり、また、予め標準品を製造しておくことができないため、納期遅れやコストアップを招く問題がある。 For this reason, there is a problem in that the support column is produced in a large variety and in small quantities, and a standard product cannot be manufactured in advance, resulting in a delay in delivery and an increase in cost.

そこで、本発明は、支柱の運搬及び搬入が容易で、施工性に優れ、且つ支柱上部を標準化して製造しておくことができる雪崩・落石等防護体の支柱連結具を提供することを目的とする。 Accordingly, an object of the present invention is to provide a strut coupler for a protective body such as an avalanche and rock fall that can be easily transported and carried in a strut, has excellent workability, and can be manufactured by standardizing the upper portion of the strut. And

請求項１の発明は、基礎に固定する支柱下部と、この支柱下部の上部に連結する支柱上部とを連結する支柱連結具において、上側に前記支柱上部の下端を挿入する上側受筒部と、下側に前記支柱下部の上部を挿入する下側受筒部と、前記支柱上部と前記支柱下部の一方に設けられた支柱側鍔継手と、この支柱側鍔継手と接続され前記上側受筒部と前記下側受筒部の一方に設けられた鍔継手とを備えるものである。 The invention according to claim 1 is a support coupling for connecting a support lower part fixed to a foundation and a support upper part connected to the upper part of the support lower part, and an upper receiving cylinder part for inserting a lower end of the support upper part on the upper side, A lower receiving tube portion for inserting the upper portion of the lower portion of the support column on the lower side, a support column side joint provided on one of the upper portion of the support column and the lower portion of the support column, and the upper receiving tube portion connected to the support column side flange joint And a gutter joint provided on one side of the lower receiving tube portion.

また、請求項２の発明は、前記上側受筒部と前記下側受筒部の他方に設けられた長さ方向のガイド部と、このガイド部に係合し、前記支柱上部と前記支柱下部の他方に設けられた長さ方向のガイド受け部とを備えるものである。 According to a second aspect of the present invention, there is provided a lengthwise guide portion provided on the other of the upper receiving tube portion and the lower receiving tube portion, and engaging with the guide portion, and the upper portion of the support column and the lower portion of the support column And a guide receiving portion in the length direction provided on the other side.

また、請求項３の発明は、前記支柱上部と前記支柱下部の他方に設けられた支柱側鍔継手と、この支柱側鍔継手と接続され前記上側受筒部と前記下側受筒部の他方に設けられた鍔継手とを備えるものである。 According to a third aspect of the present invention, there is provided a column side flange joint provided on the other of the column upper part and the column lower part, and the other of the upper cylinder portion and the lower cylinder portion connected to the column side flange joint. And a gutter joint provided in the.

請求項１の構成によれば、前記下側受筒部に前記支柱下部の上端を挿入すると共に、
前記上側受筒部に前記支柱上部の下端を挿入し、支柱下部を設置場所に固定することにより、防護体の支柱を立設することができる。この場合、支柱連結具の一方の側は、鍔継手により簡便に連結できる。 According to the configuration of claim 1, the upper end of the lower portion of the support column is inserted into the lower receiving cylinder portion,
By inserting the lower end of the upper portion of the support column into the upper receiving tube portion and fixing the lower portion of the support column at the installation location, the support column can be erected. In this case, one side of the column connector can be easily connected by a saddle joint.

このようにして、長尺な支柱を、支柱下部と支柱上部に分けて運搬、搬入することができ、現場での据付作業性を向上することができる。また、支柱をメッキ処理する場合では、一体物より支柱上部及び支柱下部は短くなるため、そのメッキ処理を容易に行うことができる。さらに、支柱上部と支柱下部とに分割することにより、支柱上部を標準化して予め製造しておくことができる。 In this way, a long column can be transported and carried in divided into a column lower part and a column upper part, and installation workability at the site can be improved. Further, in the case where the support is plated, the upper part of the support and the lower part of the support are shorter than the single body, so that the plating process can be easily performed. Furthermore, the upper part of a support | pillar can be standardized and manufactured beforehand by dividing | segmenting into a support | pillar upper part and a support | pillar lower part.

また、請求項２の構成によれば、長さ方向のガイド部とガイド受け部とを係合することにより、受筒部内に支柱の端部をスムーズに挿入することができる。 Moreover, according to the structure of Claim 2, the edge part of a support | pillar can be smoothly inserted in a receiving cylinder part by engaging the guide part and guide receiving part of a length direction.

また、請求項３の構成によれば、連結具の両方の側を、鍔継手により簡便に連結することができる。 Moreover, according to the structure of Claim 3, both sides of a coupling tool can be simply connected with a gutter joint.

本発明における好適な実施の形態について、添付図面を参照しながら詳細に説明する。なお、以下に説明する実施の形態は、特許請求の範囲に記載された本発明の内容を限定するものではない。また、以下に説明される構成の全てが、本発明の必須要件であるとは限らない。各実施例では、従来とは異なる雪崩・落石等防護体の支柱連結具を採用することにより、従来にない雪崩・落石等防護体の支柱連結具が得られ、その雪崩・落石等防護体の支柱連結具を夫々記述する。 Preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. The embodiments described below do not limit the contents of the present invention described in the claims. In addition, all the configurations described below are not necessarily essential requirements of the present invention. In each embodiment, by using a different avalanche / falling rock protector strut coupler than the conventional one, an avalanche / falling rock protector strut coupler is obtained. Each strut connector is described.

以下、本発明の防護柵の実施例１について図１〜図７を参照して説明する。落石・雪崩等防護柵１は、複数の支柱２，２…を間隔をおいて並設し、それら支柱２，２…間に横ロープ材３，３…を多段に設けると共に、それら支柱２，２…間を網体４により閉塞してなる。 Hereinafter, Embodiment 1 of the guard fence of the present invention will be described with reference to FIGS. The protective fence 1 for falling rocks, avalanches, etc. has a plurality of support columns 2, 2... Arranged at intervals, and horizontal rope members 3, 3. 2... Are closed by a net 4.

次に、前記支柱２の詳細について説明すると、その支柱２は、支柱上部２Ｕと支柱下部２Ｓとを支柱連結具５により連結してなり、それら支柱下部２Ｓと支柱上部２Ｕには、メッキ処理した鋼管Ｐにコンクリートなどの充填材Ｊを充填した充填鋼管が用いられている。尚、メッキ処理としては溶融亜鉛メッキが例示される。 Next, the details of the support column 2 will be described. The support column 2 is formed by connecting a support column upper part 2U and a support column lower part 2S by a support column connector 5, and the support column lower part 2S and the support column upper part 2U are plated. A filled steel pipe in which a steel pipe P is filled with a filler J such as concrete is used. In addition, hot dip galvanization is illustrated as a plating process.

前記支柱連結具５は、鋼管からなる筒本体６を備え、この筒本体６の上側に、前記支柱上部２Ｕの下端を挿入する上側受筒部６Ｕを有すると共に、その下側に、前記支柱下部２Ｓの上端を挿入する下側受筒部６Ｓを有し、それら両受筒部６Ｕ，６Ｓを長さ方向中央の補強板７により仕切っている。尚、この補強板７には鋼材が用いられ、該補強板７を筒本体６内に溶着して固定している。支柱連結具５にはメッキを施すことが好ましい。また、図４に示すように、前記補強板７の外周には、対向する位置に一対のガス抜き孔７Ａ，７Ａを穿設し、このガス抜き孔７Ａは、補強板７の外周を切欠いて形成され、さらに、それらガス抜き孔７Ａ，７Ａと円周方向等間隔で、対向する位置に複数対の充填孔７Ｂ，７Ｂ，７Ｂ，７Ｂが設けられている。前記ガス抜き孔７Ａ，７Ａは、鍍金のどぶ漬けにおいて、ガスを逃がし、鍍金を良好に行うために設けられている。 The column connector 5 includes a tube body 6 made of a steel pipe, and has an upper receiving tube portion 6U for inserting the lower end of the column upper portion 2U on the upper side of the tube body 6 and on the lower side of the column lower portion. The lower receiving cylinder part 6S which inserts the upper end of 2S is provided, and both these receiving cylinder parts 6U and 6S are partitioned off by the reinforcing plate 7 at the center in the length direction. The reinforcing plate 7 is made of steel, and the reinforcing plate 7 is welded and fixed in the cylinder body 6. It is preferable to plate the column connector 5. Further, as shown in FIG. 4, a pair of gas vent holes 7A and 7A are formed on the outer periphery of the reinforcing plate 7 at opposing positions, and the gas vent holes 7A cut out the outer periphery of the reinforcing plate 7. Further, a plurality of pairs of filling holes 7B, 7B, 7B, 7B are provided at positions facing the gas vent holes 7A, 7A at equal intervals in the circumferential direction. The degassing holes 7A and 7A are provided to allow gas to escape and perform plating satisfactorily when the plating is immersed.

尚、図中８は、鋼板等を三角形に形成した補強体であり、前記支柱２内に設けられる。 In the figure, reference numeral 8 denotes a reinforcing body in which a steel plate or the like is formed in a triangle, and is provided in the column 2.

また、図中９は、支柱２の上部と、防護壁１の前側の斜面Ｓとを連結する控えロープ材であり、この控えロープ材９の一端を前記支柱２の上部に連結し、控えロープの他端を前記斜面Ｓにアンカー10により固定している。 Reference numeral 9 in the figure denotes a reserve rope member that connects the upper portion of the support column 2 and the slope S on the front side of the protective wall 1. One end of the reserve rope member 9 is connected to the upper portion of the support column 2, Is fixed to the slope S by an anchor 10.

前記下側受部６Ｓの下端には、下端の鍔継手11を設け、この鍔継手11に対応して、前記支柱下部２Ｓの外周には支柱側鍔継手12が設けられ、それら鍔継手11，12の間にはパッキンなどのリング状の止水部材13が配置される。そして、それら鍔継手11，12及び止水部材13には、締付具14のボルト14Ａを挿通する挿通孔11Ａ，12Ａ及び挿通孔13Ａが複数穿設されている。尚、６組の締付具14を用いている。この例の各鍔継手は、ボルトを挿通する挿通孔を有する鋼製のフランジである。 A lower end flange joint 11 is provided at the lower end of the lower receiving portion 6S, and a column-side flange joint 12 is provided on the outer periphery of the column lower portion 2S corresponding to the flange joint 11, and these flange joints 11, A ring-shaped water-stopping member 13 such as packing is disposed between 12. A plurality of insertion holes 11A and 12A and insertion holes 13A through which the bolts 14A of the fastener 14 are inserted are formed in the flange joints 11 and 12 and the water stop member 13. Six sets of fasteners 14 are used. Each flange joint in this example is a steel flange having an insertion hole through which a bolt is inserted.

したがって、支柱下部２Ｓの上側を下側受筒部６Ｕに挿入し、鍔継手11，12間に止水部材13を挟み、挿通孔11Ａ，12Ａ，13Ａにボルト14Ａを挿通し、ワッシャを介してナット14Ｂを螺合することにより、鍔継手11，12を接続する。この状態で、前記支柱下部２Ｓの上端は前記補強板７に当接し、支柱連結具５より上側の荷重を、前記支柱下部２Ｓの上端と鍔継手11とにより受けるようになっている。 Therefore, the upper side of the lower column 2S is inserted into the lower receiving tube portion 6U, the water stop member 13 is sandwiched between the flange joints 11 and 12, the bolt 14A is inserted into the insertion holes 11A, 12A and 13A, and the washer is inserted. The gutter joints 11 and 12 are connected by screwing the nut 14B. In this state, the upper end of the lower column 2S is in contact with the reinforcing plate 7, and the load above the column connector 5 is received by the upper end of the lower column 2S and the flange joint 11.

前記上側受筒部６Ｕの内周面には、長さ方向のガイド部たるガイド突条21を円周方向等間隔に複数設け、この例では６箇所設けられており、そのガイド突条21は前記上側受筒部６Ｕの長さと略等しく、その上側受筒部６Ｕの上端から中央の補強板７に向って高くなる傾斜面21Ａを有し、補強板７位置において、複数の傾斜面21Ａ，21Ａ，21Ａ，21Ａ，21Ａ，21Ａの間隔は、支柱上部２Ｕの直径に対応している。前記支柱上部２Ｕの外周には、前記ガイド突条21に対応して、ガイド受け部たるガイド溝22が複数設けられ、この例では、前記ガイド突条21の半分の数である３箇所が円周方向等間隔に設けられており、前記ガイド溝22は、対をなす細長プレート22Ａ，22Ａの間により構成されている。前記ガイド突条21及び細長プレート22Ａは、鋼材から形成され、それぞれ溶着などにより固定されている。そして、対向する傾斜面21Ａ，21Ａの間隔は、中央側に向ってテーパ状に緩やかに狭まっていく。 A plurality of guide ridges 21 which are guide portions in the length direction are provided at equal intervals in the circumferential direction on the inner peripheral surface of the upper receiving tube portion 6U. In this example, six guide ridges 21 are provided. It has an inclined surface 21A that is substantially equal to the length of the upper receiving tube portion 6U and that rises from the upper end of the upper receiving tube portion 6U toward the central reinforcing plate 7, and a plurality of inclined surfaces 21A, The intervals of 21A, 21A, 21A, 21A, and 21A correspond to the diameter of the support upper part 2U. A plurality of guide grooves 22 serving as guide receiving portions are provided on the outer circumference of the upper portion 2U of the support so as to correspond to the guide ridges 21. In this example, three locations that are half the number of the guide ridges 21 are circular. The guide grooves 22 are provided at equal intervals in the circumferential direction, and are constituted by a pair of elongated plates 22A and 22A. The guide protrusion 21 and the elongated plate 22A are made of steel and are fixed by welding or the like. The interval between the inclined surfaces 21A and 21A facing each other is gradually narrowed in a tapered shape toward the center side.

前記上側受部６Ｕの上端には、前記鍔継手11を設ける。この上端の鍔継手11と接続する鍔継手23を形成し、この鍔継手23を、短管からなる補助管24の下端に設ける。前記鍔継手23には、前記鍔継手11の挿通孔11Ａに対応して、前記締付具14のボルト14Ａを挿通する挿通する挿通孔23Ａが複数穿設されている。尚、前記補助管24は、支柱連結具５の一部を構成するものである。 The flange joint 11 is provided at the upper end of the upper receiving portion 6U. A flange joint 23 connected to the upper end flange joint 11 is formed, and this flange joint 23 is provided at the lower end of an auxiliary pipe 24 made of a short pipe. A plurality of insertion holes 23 A through which the bolts 14 A of the fastener 14 are inserted are formed in the flange joint 23 in correspondence with the insertion holes 11 A of the flange joint 11. The auxiliary pipe 24 constitutes a part of the column connector 5.

また、前記補助管24の上端には、鋼製の鍔部25を設ける。この鍔部25に重ねる半割プレート26，26と半割プレート27，27とを形成する。それら半割プレート26，26，27，27を合わせると、リング状をなし、その外形は鍔部25の外形に対応し、その内径は支柱上部２Ｕの外径に対応する。また、それら半割プレート26，26，27，27は、突合せ端部が重ならないようにずらして重ね合わされ、この状態で前記補助管24と支柱上部２Ｕとの隙間に連通する充填孔26Ａ，27Ａがそれぞれ穿設されている。そして、前記鍔部25に半割プレート26，26，27，27を重ね合わせ、これらを万力などの外締付具28により締め付けてセットする。こうすると、前記充填孔26Ａ，27Ａが連通し、それら半割プレート26，26，27，27により、補助管24の上端と、上側受筒部６Ｕに挿入した支柱上部２Ｕとの隙間を塞ぐことができる。尚、前記半割プレート26，27は、パッキンなどの止水部材からなる。また、前記補助管24は、前記筒本体６と略同形の鋼管からなる。 Further, a steel flange 25 is provided at the upper end of the auxiliary pipe 24. The half plates 26 and 26 and the half plates 27 and 27 are formed so as to overlap the flange portion 25. When these half plates 26, 26, 27, 27 are combined, they form a ring shape, the outer shape thereof corresponds to the outer shape of the flange 25, and the inner diameter thereof corresponds to the outer diameter of the support upper part 2U. Further, the half plates 26, 26, 27, 27 are overlapped with each other so that the butted ends do not overlap with each other, and in this state, the filling holes 26A, 27A communicating with the gap between the auxiliary pipe 24 and the column upper portion 2U. Are respectively drilled. Then, the half plates 26, 26, 27, 27 are superposed on the flange portion 25, and these are set by tightening them with an external fastener 28 such as a vise. In this way, the filling holes 26A, 27A communicate with each other, and the halved plates 26, 26, 27, 27 close the gap between the upper end of the auxiliary pipe 24 and the upper column 2U inserted into the upper receiving cylinder 6U. Can do. The half plates 26 and 27 are formed of a water stop member such as packing. The auxiliary pipe 24 is made of a steel pipe having substantially the same shape as the cylinder body 6.

さらに、前記補助管24には、雌螺子孔29が円周方向に等間隔に並んで複数形成され、これら雌螺子孔29に調整兼用固定ボルト30が外側から螺合され、この固定ボルト30の先端が前記支柱上部２Ｕの外面に当接する。この例では、６個の雌螺子孔29と６本の固定ボルト30を用いている。そして、前記補助管24及び固定ボルト30により、支柱連結具５に対する支柱上部２Ｕの角度を調整する角度調整調整手段35を構成している。 Further, a plurality of female screw holes 29 are formed in the auxiliary pipe 24 at equal intervals in the circumferential direction, and adjustment and fixing bolts 30 are screwed into the female screw holes 29 from the outside. The front end abuts on the outer surface of the upper column 2U. In this example, six female screw holes 29 and six fixing bolts 30 are used. The auxiliary pipe 24 and the fixing bolt 30 constitute angle adjustment adjusting means 35 for adjusting the angle of the column upper part 2U with respect to the column connector 5.

そして、前記固定ボルト30の先端を前記支柱上部２Ｕに当接することにより、支柱上部２Ｕに補助管24を固定することができ、また、補助管24内面から突出する固定ボルト30の先端長さを調整することにより、補助管24及び支柱連結具５に対する支柱上部２Ｕの傾きを調整できる。この場合、図２に示すように、支柱連結具５の上側受筒部６Ｕに支柱上部２Ｕを挿入した状態で、該支柱上部２Ｕの下端は、ガイド突条21，21…の下端により支柱連結具５に位置決めされると共に、補強板７との間に僅かな隙間Ｋを有しており、これにおり、ガイド突条21，21…の下端を中心に支柱上部２Ｕを支柱連結具５に対して角度調整できる。尚、支柱上部２Ｕの角度調整においては、支柱上部２Ｕを中心から全周方向に１．５度程度傾けることが可能である。 The auxiliary tube 24 can be fixed to the support column upper portion 2U by bringing the tip of the fixing bolt 30 into contact with the support column upper portion 2U, and the length of the fixing bolt 30 protruding from the inner surface of the auxiliary tube 24 can be increased. By adjusting, the inclination of the column upper part 2U with respect to the auxiliary pipe 24 and the column connector 5 can be adjusted. In this case, as shown in FIG. 2, in the state where the column upper part 2U is inserted into the upper receiving tube portion 6U of the column connection tool 5, the lower end of the column upper part 2U is connected to the column by the lower ends of the guide ridges 21, 21,. It is positioned on the tool 5 and has a slight gap K between it and the reinforcing plate 7, and the support upper part 2 U is attached to the support connector 5 around the lower ends of the guide ridges 21, 21. The angle can be adjusted. In addition, in the angle adjustment of the support | pillar upper part 2U, it is possible to incline the support | pillar upper part 2U about 1.5 degree | times to the perimeter direction from the center.

また、図中31は充填材であり、高流動性無収縮モルタルなどのグラウト材等が用いられる。尚、前記半割プレート26，27及び外締付具28により、充填材の漏れを防止する蓋手段36を構成している。 In the figure, 31 is a filler, and a grout material such as a high fluidity non-shrink mortar is used. The half plates 26 and 27 and the outer fasteners 28 constitute cover means 36 for preventing leakage of the filler.

そして、前記支柱上部２Ｕ，支柱下部２Ｓ及び支柱連結具５は、鍍金槽（図示せず）の鍍金液に漬けて鍍金処理される。 Then, the support upper part 2U, the support lower part 2S, and the support connector 5 are plated in a plating solution in a plating tank (not shown).

次に、前記防護柵１の施工方法などについて、支柱２を中心として説明する。まず、設置場所で、支柱下部２Ｓを建て込んだ後、支柱上部２Ｕを連結する場合について説明すると、防護柵1の設置場所である山の斜面Ｓなどに取付孔32を穿孔し、この穿孔にはボーリングが用いられ、前記取付孔32に支柱下部２Ｓを挿入して建て込む。尚、支柱下部２Ｓの上端を取付孔32に挿入する前に、前記上端を支柱連結具５の他側受筒部６Ｓ内に挿入し、鍔継手11，12の間に止水部材13を挟んだ状態で、締付具14により鍔継手11，12を連結する。 Next, the construction method and the like of the protective fence 1 will be described focusing on the support column 2. First, the case where the support column upper part 2U is connected after the installation of the support column lower part 2S will be described. The mounting hole 32 is drilled on the slope S of the mountain where the protective fence 1 is installed. A boring is used, and the lower column 2S is inserted into the mounting hole 32 and built. Before inserting the upper end of the lower column 2S into the mounting hole 32, the upper end is inserted into the other side receiving tube 6S of the column connector 5 and the water stop member 13 is sandwiched between the flange joints 11 and 12. In this state, the joints 11 and 12 are connected by the fastener 14.

このようにした後、支柱下部２Ｓを取付孔32に所定深さ挿入し、例えば、図１に示すように、支柱下部２Ｓの上端を設置場所の表面位置まで挿入する。そして、取付孔32と支柱下部２Ｓとの間に隙間があれば、この隙間に取付孔用充填材33を充填して支柱下部２Ｓを設置場所に固定する。このように、支柱２の施工において、長尺な支柱２を、その支柱下部２Ｓを支柱上部２Ｕと分けて施工することができ、現場での据付作業性を向上することができる。また、支柱２の鋼管Ｐをメッキ処理する場合では、一体物より支柱上部２Ｕ及び支柱下部２Ｓは短くなるため、そのメッキ処理を容易に行うことができる。 After this, the support lower part 2S is inserted into the mounting hole 32 to a predetermined depth, and, for example, as shown in FIG. 1, the upper end of the support lower part 2S is inserted to the surface position of the installation location. If there is a gap between the mounting hole 32 and the lower column 2S, the lower hole 2S is fixed at the installation location by filling the gap 33 with the filler 33 for the mounting hole. Thus, in the construction of the support column 2, the long support column 2 can be applied with the support column lower part 2S separated from the support column upper part 2U, and the installation workability at the site can be improved. In addition, when the steel pipe P of the support 2 is plated, the support upper part 2U and the support lower part 2S are shorter than the integrated body, so that the plating process can be easily performed.

このように支柱下部２Ｓの施工が終わった後、連続して、あるいは時間をおいて、支柱上部２Ｕの施工を行う。まず、支柱連結具５の上端の鍔継手12と補助管24の鍔継手23との間に止水部材13を挟んだ状態で、締付具14により鍔継手11，23を連結する。尚、補助管24を支柱上部２Ｕに挿通しておいて、支柱上部２Ｕを支柱連結具５に挿入した後、支柱連結具５に補助管24を連結してもよい。支柱連結具５の上端の補助管24を連結した後を例にして説明すると、補助管24の上部開口から支柱上部２Ｕを挿入し、この際、支柱連結具５内周のガイド突条21に、支柱上部２Ｕのガイド溝22を合わせ、支柱上部２Ｕを吊下していく。すると、図２に示すように、下方に向って間隔が狭くなる複数の傾斜面21Ａ，21Ａ…に案内されて、支柱上部２Ｕの下端が支柱連結具５の中央に案内され、且つ支柱上部２Ｕの下端と補強板７との間に僅かな隙間Ｋが保たれる。ここで、支柱上部２Ｕの荷重の一部を支持して吊上げた状態で、固定ボルト30の螺合量を調整することにより、支柱上部２Ｕの支柱連結具５に対する角度を調整し、角度調整後に、固定ボルト30により補助管24を介して支柱上部２Ｕを支柱連結具５に仮固定する。また、補強管24上端の鍔部25に半割プレート26，26と半割プレート27，27とを重ね合わせ、これらを複数の外締付具28，28により締付固定する。この場合、締付前に半割プレート26，26，27、27の内周を支柱上部２Ｕの外周に合わせて隙間を塞ぐことができる。尚、ガイド突条21とガイド溝22間には隙間があるが、これらの係合により、支柱連結具５に対して支柱上部２Ｕが回り止めされる。また、後述するように充填材31が硬化した後は、それらガイド突条21とガイド溝22により、支柱連結具５と支柱上部２Ｕとの一体化が図られる。 After the construction of the lower column 2S is finished in this way, the upper column 2U is constructed continuously or with time. First, the heel joints 11 and 23 are connected by the fastener 14 in a state where the water stop member 13 is sandwiched between the heel joint 12 at the upper end of the column connection tool 5 and the heel joint 23 of the auxiliary pipe 24. Alternatively, the auxiliary pipe 24 may be inserted into the column upper part 2U, and after the column upper part 2U is inserted into the column connection tool 5, the auxiliary tube 24 may be connected to the column connection tool 5. The case after the auxiliary pipe 24 at the upper end of the column coupling 5 is connected will be described as an example. The column upper portion 2U is inserted from the upper opening of the auxiliary tube 24, and at this time, the guide protrusion 21 on the inner periphery of the column coupling 5 is inserted. Align the guide groove 22 of the upper column 2U and suspend the upper column 2U. Then, as shown in FIG. 2, the lower end of the column upper part 2U is guided to the center of the column connection tool 5 while being guided by a plurality of inclined surfaces 21A, 21A. A slight gap K is maintained between the lower end of the plate and the reinforcing plate 7. Here, the angle of the upper column 2U with respect to the column connector 5 is adjusted by adjusting the screwing amount of the fixing bolt 30 while supporting a part of the load of the column upper unit 2U, and after adjusting the angle. The column upper part 2U is temporarily fixed to the column connector 5 via the auxiliary pipe 24 by the fixing bolt 30. In addition, the half plates 26, 26 and the half plates 27, 27 are superposed on the flange portion 25 at the upper end of the reinforcing pipe 24, and these are fastened and fixed by a plurality of external fasteners 28, 28. In this case, before tightening, the inner periphery of the half plates 26, 26, 27, 27 can be aligned with the outer periphery of the upper column 2U to close the gap. Although there is a gap between the guide protrusion 21 and the guide groove 22, the upper portion 2 U of the column is prevented from rotating with respect to the column connector 5 by the engagement. Moreover, after the filler 31 is hardened as will be described later, the support protrusion 5 and the support upper part 2U are integrated by the guide protrusion 21 and the guide groove 22.

そして、一方の充填孔26Ａ，27Ａに充填ノズル（図示せず）を挿入し、その充填ノズルの先端から充填材31を内部に充填し、支柱上部２Ｕ及び支柱下部２Ｓと、支柱連結具５内との隙間を埋める。この場合、支柱連結具５に支柱上部２Ｕ，支柱下部２Ｓを挿入した後でも、充填孔26Ａ，27Ａから支柱上部２Ｕと一側受筒部６Ｓとの間に充填された充填材31は、複数の充填孔７Ｂ，７Ｂ…を通って支柱下部２Ｓと下側受筒部６Ｓとの間に充填され、支柱連結具５の下側の充填が完了したら、支柱上部２Ｕと上側受筒部６Ｕとの間に充填され、充填面が徐々に上昇し、余分な空気は他方の充填孔26Ａ，27Ａから排出され、また、上部は半割プレート26，26，27，27により塞がれているため、充填材31の漏れが防止される。 Then, a filling nozzle (not shown) is inserted into one of the filling holes 26A and 27A, and the filling material 31 is filled into the inside from the tip of the filling nozzle, and the inside of the support column upper part 2U, the support column lower part 2S, and the support column connector 5 And fill the gap. In this case, even after the support upper part 2U and the support lower part 2S are inserted into the support coupler 5, a plurality of fillers 31 filled between the support upper part 2U and the one-side receiving cylinder part 6S through the filling holes 26A and 27A are provided. Through the filling holes 7B, 7B,... Between the lower column 2S and the lower receiving cylinder 6S, and when the lower charging of the column coupling 5 is completed, the upper column 2U and the upper receiving cylinder 6U Since the filling surface gradually rises, excess air is discharged from the other filling holes 26A, 27A, and the upper part is blocked by the half plates 26, 26, 27, 27. The leakage of the filler 31 is prevented.

尚、充填材31が硬化する前であれば、前記固定ボルト30を用いて、支柱上部２Ｕを支柱連結具５に対して角度調整することができる。そして、充填した充填材31が硬化することにより、支柱上部２Ｕ，支柱下部２Ｓ及び支柱連結具５が一体化される。尚、充填材31を充填した後、前記外締付具28を緩めて外し、半割プレート26，27も取り外す（図７参照）。 If the filler 31 is not cured, the angle of the column upper portion 2U can be adjusted with respect to the column connector 5 by using the fixing bolt 30. Then, the filled filler 31 is cured, so that the support upper part 2U, the support lower part 2S, and the support coupling 5 are integrated. After the filling material 31 is filled, the outer fastener 28 is loosened and removed, and the half plates 26 and 27 are also removed (see FIG. 7).

次に、設置場所で、建て込み前に、支柱下部２Ｓと支柱上部２Ｕとを支柱連結具５によりを連結する場合について説明すると、工場で、支柱下部２Ｓと支柱上部２Ｕと支柱連結具５を作成し、そのまま設置場所又はその近傍まで搬入する。そして、設置場所又はその近傍で、例えば、支柱下部２Ｓと支柱上部２Ｕとを横向きとし、同様に横向きとした支柱連結具５にそれぞれの端部を挿入し、固定ボルト30により仮固定し、支柱連結具５の上下は塞ぎ、前記充填孔26Ａ，27Ａを上向きにした状態で、充填材31を充填し、充填材31を養生した後、支柱下部２Ｓを前記取付孔32に挿入して支柱２を立設する。 Next, the case where the column lower part 2S and the column upper part 2U are connected by the column connection tool 5 before installation at the installation site will be described. At the factory, the column lower part 2S, the column upper part 2U and the column connection tool 5 are connected. Create it and carry it to the installation location or its vicinity. Then, at or near the installation location, for example, the column lower part 2S and the column upper part 2U are turned sideways, and the respective end portions are inserted into the column connection tool 5 which is also turned sideways, and temporarily fixed by the fixing bolts 30. The upper and lower sides of the connector 5 are closed, and the filling holes 31A and 27A are faced upward. After filling the filling material 31 and curing the filling material 31, the support lower portion 2S is inserted into the mounting hole 32 and the support column 2 is inserted. Is set up.

この場合、支柱下部２Ｓと支柱上部２Ｕと支柱連結具５とを別々に設置場所又はその近傍に搬入するから、それらの運搬及び搬入が容易となり、また、設置場所又はその近傍の作業に適した場所で、支柱連結具５により支柱下部２Ｓと支柱上部２Ｕとを一体化することができる。 In this case, since the lower column 2S, the upper column 2U, and the column connector 5 are separately carried into the installation place or the vicinity thereof, they can be easily transported and carried, and are suitable for work in the installation place or the vicinity thereof. At the place, the column lower part 2S and the column upper part 2U can be integrated by the column connector 5.

尚、設置場所又はその近傍以外で、支柱下部２Ｓと支柱上部２Ｕとを支柱連結具５によりを連結するようにしてもよい。この場合、長尺な支柱２を支柱下部２Ｓと支柱上部２Ｕとに分割して製造するため、メッキ処理などの制約を受け難く、また、作業に適した場所で製造するから、安定した製品（支柱２）を製造することができる。 In addition, you may make it connect the support | pillar lower part 2S and the support | pillar upper part 2U by the support | pillar connection tool 5 other than an installation place or its vicinity. In this case, since the long column 2 is divided into the column lower part 2S and the column upper part 2U and manufactured, it is not subject to restrictions such as plating treatment, and is manufactured in a place suitable for work. The strut 2) can be manufactured.

このように本実施例では、請求項１に対応して、設置場所たる斜面Ｓに固定する支柱下部２Ｓと、この支柱下部２Ｓの上部に連結する支柱上部２Ｕとを連結する支柱連結具５において、上側に支柱上部２Ｕの下端を挿入する上側受筒部６Ｕと、下側に支柱下部２Ｓの上部を挿入する下側受筒部６Ｓと、支柱上部２Ｕと支柱下部２Ｓの一方である支柱下部２Ｓに設けられた支柱側鍔継手12と、この支柱側鍔継手12と接続され前記上側受筒部６Ｕと下側受筒部６Ｓの一方である下側受筒部６Ｓに設けられた鍔継手11とを備えるから、下側受筒部６Ｓに支柱下部２Ｓの上端を挿入すると共に、前記上側受筒部６Ｕに支柱上部２Ｕの下端を挿入し、支柱下部２Ｓを斜面Ｓに挿入して固定することにより、防護体たる防護柵１の支柱２を立設することができ、このように下側受筒部６Ｓと支柱下部２Ｓとを鍔継手11，12により簡便に連結できる。したがって、長尺な支柱２を、支柱下部２Ｓと支柱上部２Ｕに分けて運搬、搬入することができ、現場での据付作業性を向上することができる。また、支柱２の鋼管Ｐをメッキ処理する場合では、一体物より支柱上部２Ｕ及び支柱下部２Ｓは短くなるため、そのメッキ処理を容易に行うことができる。 As described above, in this embodiment, in accordance with the first aspect of the present invention, in the column connecting member 5 that connects the column lower portion 2S fixed to the slope S as the installation location and the column upper portion 2U connected to the upper portion of the column lower portion 2S. An upper receiving tube portion 6U for inserting the lower end of the support column upper portion 2U on the upper side, a lower receiving tube portion 6S for inserting the upper portion of the support column lower portion 2S on the lower side, and a support column lower portion which is one of the support column upper portion 2U and the support column lower portion 2S. 2S and the brace joint provided in the lower receiving cylinder part 6S, which is connected to the strut side saddle joint 12 and is one of the upper receiving cylinder part 6U and the lower receiving cylinder part 6S. 11, the upper end of the lower column 2S is inserted into the lower receiving cylinder 6S, the lower end of the upper column 2U is inserted into the upper receiving cylinder 6U, and the lower column 2S is inserted into the slope S and fixed. By doing so, it is possible to stand up the column 2 of the protective fence 1 as the protective body. It is conveniently connected by flange joints 11, 12 and a lower receiving cylindrical part 6S a post lower 2S in this manner. Therefore, the long column 2 can be transported and carried in divided into the column lower part 2S and the column upper part 2U, and the installation workability at the site can be improved. In addition, when the steel pipe P of the support 2 is plated, the support upper part 2U and the support lower part 2S are shorter than the integrated body, so that the plating process can be easily performed.

このように長尺な支柱２であっても、支柱上部２Ｕと支柱下部２Ｓとに分けて運搬及び搬入することができるため、搬送コストを削減することができる。また、支柱上部２Ｕと支柱下部２Ｓとに分けてメッキ処理ができるため、超長尺な支柱も製作可能となる。しかも、支柱上部２Ｕと支柱下部２Ｓとに分割することにより、支柱上部２Ｕを標準化して予め製作しておくことができる。 Thus, even if it is the elongate support | pillar 2, since it can convey and carry in into the support | pillar upper part 2U and the support | pillar lower part 2S separately, conveyance cost can be reduced. Further, since the plating process can be performed separately for the support upper part 2U and the support lower part 2S, it is possible to manufacture an extremely long support. In addition, by dividing the support upper portion 2U and the support lower portion 2S, the support upper portion 2U can be standardized and manufactured in advance.

また、このように本実施例では、請求項２に対応して、上側受筒部６Ｕと下側受筒部６Ｓの他方である上側受筒部６Ｕに設けられた長さ方向のガイド部たるガイド突条21と、このガイド突条21に係合し、支柱上部２Ｕと支柱下部２Ｓの他方である支柱上部２Ｕに設けられた長さ方向のガイド受け部たるガイド溝22とを備えるから、長さ方向のガイド突条21とガイド溝22とを係合することにより、受筒部６内に支柱上部２Ｕの端部をスムーズに挿入することができる。 In this way, in this embodiment, corresponding to claim 2, it is a longitudinal guide portion provided in the upper receiving cylinder portion 6U which is the other of the upper receiving cylinder portion 6U and the lower receiving cylinder portion 6S. Since it includes a guide protrusion 21 and a guide groove 22 that engages with the guide protrusion 21 and is a guide receiving portion in the length direction provided on the support upper part 2U that is the other of the support upper part 2U and the support lower part 2S, By engaging the guide protrusion 21 and the guide groove 22 in the lengthwise direction, the end portion of the column upper portion 2U can be smoothly inserted into the receiving tube portion 6.

また、以下、実施例上の効果として、、支柱連結具５に対する支柱上部２Ｕの角度を調整する角度調整調整手段35を備えるから、その角度調整を容易に行うことができる。 In addition, as an effect of the embodiment, since the angle adjustment adjusting means 35 for adjusting the angle of the column upper part 2U with respect to the column connector 5 is provided, the angle adjustment can be easily performed.

また、請求項１の支柱連結具５を用いた支柱連結構造において、下側受筒部６Ｓに支柱下部２Ｓの上端を挿入すると共に、上側受筒部６Ｕに支柱上部２Ｕの下端を挿入し、下側受筒部６Ｓと支柱下部２Ｓの上端との間に充填材31を充填すると共に、上側受筒部６Ｕと支柱上部２Ｕの下端との間に充填材31を充填してなるから、支柱２を一体化して立設することができる。 Moreover, in the support | pillar connection structure using the support | pillar coupling tool 5 of Claim 1, while inserting the upper end of the support | pillar lower part 2S in the lower receiving cylinder part 6S, and inserting the lower end of the support | pillar upper part 2U in the upper receiving cylinder part 6U, The filling material 31 is filled between the lower receiving cylinder portion 6S and the upper end of the column lower portion 2S, and the filling material 31 is filled between the upper receiving tube portion 6U and the lower end of the column upper portion 2U. 2 can be integrated and erected.

また、このように本実施例では、請求項１の支柱連結具を用い、下側受筒部６Ｓに支柱下部２Ｓの上端を挿入すると共に、上側受筒部６Ｕに支柱上部２Ｕの下端を挿入し、下側受筒部６Ｓと支柱下部２Ｓの上端との間に充填材31を充填すると共に、上側受筒部６Ｕと支柱上部２Ｕの下端との間に充填材31を充填した後、設置場所に支柱２の下部を取り付けるから、支柱上部２Ｕと支柱下部２Ｓとをそれぞれ製作した後、所定の場所において、支柱上部２Ｕと支柱下部２Ｓとを支柱連結具５により連結して一体化する。そして、所定の場所が支柱製作工場であれば、寸法精度に優れた支柱２が得られ、一方、所定の場所が設置場所であれば、支柱上部２Ｕと支柱下部２Ｓとを分割したまま設置場所に搬入できるため、設置場所までの運搬及び搬入が容易となる。 Thus, in this embodiment, the upper end of the lower column 2S is inserted into the lower receiving cylinder 6S and the lower end of the upper column 2U is inserted into the upper receiving cylinder 6U. Then, the filling material 31 is filled between the lower receiving cylinder portion 6S and the upper end of the column lower portion 2S, and the filling material 31 is filled between the upper receiving tube portion 6U and the lower end of the column upper portion 2U, and then installed. Since the lower part of the column 2 is attached to the place, after the column upper part 2U and the column lower part 2S are manufactured, the column upper part 2U and the column lower part 2S are connected and integrated by the column connector 5 at a predetermined place. If the predetermined place is a pillar manufacturing factory, the pillar 2 with excellent dimensional accuracy can be obtained. On the other hand, if the predetermined place is the installation place, the installation place with the support upper part 2U and the support lower part 2S divided. Therefore, it is easy to transport and carry to the installation location.

さらに、請求項１の支柱連結具を用い、上側受筒部６Ｓに支柱下部２Ｓの上端を挿入すると共に、下側受筒部６Ｕに支柱上部２Ｕの下端を挿入し、下側受筒部６Ｓと支柱下部２Ｓの上端との間に充填材31を充填すると共に、上側受筒部６Ｕと支柱上部２Ｕの下端との間に充填材31を充填する支柱連結工法であって、設置場所たる斜面Ｓに支柱下部２Ｓを取り付けると共に、この支柱下部２Ｓの上端を下側受筒部６Ｓに挿入した後、上側受筒部６Ｕに支柱上部２Ｕの下端を挿入するから、支柱下部２Ｓを斜面Ｓに固定する現場施工と、支柱上部２Ｕを含む防護体たる防護柵１の上部の現場施工とを分けて行うことにより、据付作業に伴う施工性を向上することができる。また、支柱上部２Ｕの鋼管Ｋにはメッキ処理が施されているから、一体物より支柱上部２Ｕ及び支柱下部２Ｓがそれぞれ短くなるため、それらのメッキ処理を容易に行うことができる。 Furthermore, using the support coupler of claim 1, the upper end of the support lower part 2S is inserted into the upper receiving cylinder part 6S, and the lower end of the support upper part 2U is inserted into the lower receiving cylinder part 6U, so that the lower receiving cylinder part 6S is inserted. Is a column connecting method in which the filler 31 is filled between the upper end of the column lower portion 2S and the filler 31 is filled between the upper receiving tube portion 6U and the lower end of the column upper portion 2U. The lower column 2S is attached to the S, and the upper end of the lower column 2S is inserted into the lower receiving cylinder 6S, and then the lower end of the upper column 2U is inserted into the upper receiving cylinder 6U. By performing the site construction to be fixed and the site construction on the upper part of the protective fence 1 as the protective body including the upper part 2U of the support column, the workability associated with the installation work can be improved. Further, since the steel pipe K of the support upper part 2U is plated, the support upper part 2U and the support lower part 2S are shorter than the integrated body, so that the plating process can be easily performed.

さらにまた、支柱連結具５を鋼製としたから、構造簡易にして量産性に優れたものとなり、しかも、充填材31として高流動性無収縮モルタルを用いることにより、充填性が良好となる。 Furthermore, since the column coupler 5 is made of steel, the structure is simple and the mass productivity is excellent. Further, by using a high fluidity non-shrink mortar as the filler 31, the filling property is improved.

図９は本発明の実施例２を示し、上記実施例１と同一部分に同一符号を付し、その詳細な説明を省略して詳述する。この例では、斜面Ｓに対して、実施例１の支柱２を略垂直に立設した防護柵１を示し、この例においても、上記実施例１と同様な作用・効果を奏する。 FIG. 9 shows a second embodiment of the present invention, in which the same parts as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted. In this example, the protective fence 1 is shown in which the support pillars 2 of the first embodiment are erected substantially vertically with respect to the slope S. In this example, the same operations and effects as the first embodiment are exhibited.

図１０〜図１３は本発明の実施例３を示し、上記実施例１と同一部分に同一符号を付し、その詳細な説明を省略して詳述する。この例では、実施例１で示した補強管24，半割プレート26，26，27，27，外締付具28，ガイド突条21及びガイド溝22は用いておらず、支柱連結具５上端の鍔継手11に重ね合わせるリングプレート41，42と、支柱上部２Ｕの外周に設けた前記支柱鍔継手12を備える。 10 to 13 show a third embodiment of the present invention, in which the same parts as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted. In this example, the reinforcing pipe 24, the half plates 26, 26, 27, 27, the outer fastening tool 28, the guide protrusion 21 and the guide groove 22 shown in the first embodiment are not used, and the upper end of the column coupling 5 Ring plates 41 and 42 to be superposed on the barbed joint 11 and the column bar joint 12 provided on the outer periphery of the column upper part 2U.

それらリングプレート41，42は、パッキンなどの止水部材からなり、前記支柱上部２Ｕの外周に外嵌する。また、前記鍔継手11，12の挿通孔11Ａ，12Ａに対応して、前記リングプレート41，42には挿通孔41Ａ，42Ａが穿設されており、それら挿通孔11Ａ，41Ａ，42Ａ，12Ａに、調整兼用固定長ボルト43が挿通され、この固定長ボルト43には、前記リングプレート42上でナット43Ａが螺合され、その固定長ボルト43の頭部とナット43Ａとの間に鍔継手11とリングプレート41，42が挟まれて固定され、これら固定されたリングプレート41，42により、支柱連結具５の上部と支柱上部２Ｕの外周との間の隙間が塞がれる。また、前記リングプレート41，42には、対をなす充填孔41Ｂ，41Ｂ，42Ｂ，42Ｂが穿設されており、これら充填孔41Ｂ，41Ｂ，42Ｂ，42Ｂに対応して、前記支柱上部２Ｕの鍔継手12には、充填孔12Ｂが穿設されている。 The ring plates 41 and 42 are made of a water-stopping member such as packing, and are fitted on the outer periphery of the upper column 2U. The ring plates 41 and 42 are provided with insertion holes 41A and 42A corresponding to the insertion holes 11A and 12A of the flange joints 11 and 12, and the insertion holes 11A, 41A, 42A and 12A are provided in the insertion holes 11A, 41A, 42A and 12A. The adjustment-use fixed long bolt 43 is inserted, and a nut 43A is screwed onto the fixed long bolt 43 on the ring plate 42, and the flange joint 11 is interposed between the head of the fixed long bolt 43 and the nut 43A. The ring plates 41 and 42 are sandwiched and fixed, and the fixed ring plates 41 and 42 close the gap between the upper portion of the column coupling 5 and the outer periphery of the column upper portion 2U. The ring plates 41, 42 are provided with a pair of filling holes 41B, 41B, 42B, 42B, and corresponding to the filling holes 41B, 41B, 42B, 42B, A filling hole 12B is formed in the saddle joint 12.

さらに、前記固定長ボルト43には、前記ナット43Ａと間隔を置いて上部に受けナット43Ｂが螺合され、この受けナット43Ｂの上に前記支柱上部２Ｕの支柱側鍔継手12が載置され、さらに、その支柱側鍔継手12を挿通した固定長ボルト43にナット43Ｃを螺合する。 Further, a receiving nut 43B is screwed onto the fixed long bolt 43 at an interval from the nut 43A, and the support side side joint 12 of the support upper part 2U is placed on the receiving nut 43B. Further, a nut 43 C is screwed into the fixed long bolt 43 inserted through the column side flange joint 12.

そして、この例では、前記支柱連結具５上端の鍔継手11，支柱上部２Ｕの外周に設けた支柱鍔継手12，固定長ボルト43及び受毛ナット43Ｂにより、前記角度調整手段35を構成し、また、リングプレート41，42などにより前記蓋手段36を構成している。 And in this example, the said angle adjustment means 35 is comprised by the support | pillar joint 11 provided in the outer periphery of the support | pillar upper part 2U of the support | pillar coupling 5, the fixed length bolt 43, and the hair-receiving nut 43B, and Further, the lid means 36 is constituted by the ring plates 41, 42 and the like.

したがって、実施例１と同様に、支柱連結具５と支柱下部２Ｓとを連結した後、上側受筒部６Ｕ内に支柱上部２Ｕを挿入し、ナット43Ａ，を締めて、上端の鍔継手11に固定長ナット43を固定する。そして、この固定長ナット43を、支柱上部２Ｕの支柱側鍔継手12の挿通孔12Ａに挿通し、複数の受けナット43Ｂ，43Ｂ…の位置を調整することにより、支柱連結具５に対する支柱上部２Ｕの角度を調整でき、調整後、ナット43Ｃを締めることにより、その調整した角度で支柱連結具５に支柱上部２Ｕを固定できる。 Therefore, as in the first embodiment, after connecting the column connector 5 and the column lower portion 2S, the column upper portion 2U is inserted into the upper receiving tube portion 6U, the nut 43A is tightened, and the upper end flange joint 11 is attached. The fixed length nut 43 is fixed. Then, the fixed-length nut 43 is inserted into the insertion hole 12A of the column side joint 12 of the column upper part 2U, and the positions of the plurality of receiving nuts 43B, 43B. After the adjustment, the column upper part 2U can be fixed to the column connector 5 at the adjusted angle by tightening the nut 43C.

そして、一方の充填孔12Ｂ，42Ｂ，41Ｂに充填ノズル（図示せず）を挿入し、実施例１と同様に、充填材31を充填し、他方の充填孔12Ｂ，42Ｂ，41Ｂが空気抜き孔となり、充填した充填材31が硬化することにより、支柱上部２Ｕ，支柱下部２Ｓ及び支柱連結具５が一体化される。 Then, a filling nozzle (not shown) is inserted into one of the filling holes 12B, 42B, and 41B, and the filling material 31 is filled in the same manner as in Example 1, and the other filling holes 12B, 42B, and 41B become air vent holes. As the filled material 31 is cured, the support upper part 2U, the support lower part 2S, and the support coupler 5 are integrated.

尚、施工手順は実施例１と同様に行うことができる。 The construction procedure can be performed in the same manner as in the first embodiment.

このように本実施例では、請求項１及び２に対応して、上記各実施例と同様な作用・効果を奏し、また、このように本実施例では、請求項３に対応して、支柱上部２Ｕと支柱下部２Ｓの他方である支柱上部２Ｕに設けられた支柱側鍔継手12と、この支柱側鍔継手12と接続され上側受筒部６Ｕと下側受筒部６Ｓの他方たる上側受筒部６Ｕに設けられた鍔継手とを備えるから、支柱連結具５の両方の側を、鍔継手11，12により簡便に支柱上部２Ｕ及び支柱下部２Ｓ連結することができる。 As described above, in this embodiment, the same operations and effects as those of the above-described embodiments are obtained in correspondence with claims 1 and 2, and in this embodiment, in the present embodiment, in accordance with claim 3, The column side flange joint 12 provided on the column upper portion 2U which is the other of the upper portion 2U and the column lower portion 2S, and the upper receiving portion which is connected to the column side rod joint 12 and which is the other of the upper receiving tube portion 6U and the lower receiving tube portion 6S. Since the rod joint provided on the cylinder portion 6U is provided, both sides of the column coupling 5 can be easily coupled to the column upper portion 2U and the column lower portion 2S by the rod joints 11 and 12.

図１４は本発明の実施例３を示し、上記各実施例と同一部分に同一符号を付し、その詳細な説明を省略して詳述する。この例では、斜面Ｓに対して、実施例３の支柱２を略垂直に立設した防護柵１を示し、この例においても、上記各実施例と同様な作用・効果を奏する。 FIG. 14 shows a third embodiment of the present invention. The same reference numerals are given to the same portions as those of the above-described embodiments, and detailed description thereof will be omitted. In this example, the guard fence 1 is shown in which the support pillars 2 of the third embodiment are erected substantially vertically with respect to the slope S. In this example, the same operations and effects as the above-described embodiments are exhibited.

以上、本発明の実施例について詳述したが、本発明は、前記実施例に限定されるものではなく、本発明の要旨の範囲内で種々の変形実施が可能である。例えば、実施例では、斜面などの地山に支柱を建て込んだ例を示したが、コンクリートなどの基礎を設けた設置面に支柱を建て込んでもよい。 As mentioned above, although the Example of this invention was explained in full detail, this invention is not limited to the said Example, A various deformation | transformation implementation is possible within the range of the summary of this invention. For example, in the embodiment, an example is shown in which a support is built on a natural ground such as a slope, but a support may be built on an installation surface provided with a foundation such as concrete.

本発明の実施例１を示す支柱連結具の使用状態の断面図である。It is sectional drawing of the use condition of the support | pillar coupling tool which shows Example 1 of this invention. 同上、支柱連結具回りの断面図である。It is sectional drawing around a support | pillar coupling tool same as the above. 同上、支柱の分解斜視図である。It is an exploded perspective view of a support | pillar same as the above. 同上、支柱連結具の中央側の平断面図である。It is a plane sectional view of the center side of a support | pillar coupling device same as the above. 同上、一側連結筒部の平断面図である。It is a plane sectional view of a 1 side connection cylinder part same as the above. 同上、補助管の平断面図である。It is a plane sectional view of an auxiliary pipe same as the above. 同上、支柱の設置状態の断面図である。It is sectional drawing of the installation state of a support | pillar same as the above. 本発明の実施例２を示す支柱連結具の使用状態の断面図である。It is sectional drawing of the use condition of the support | pillar coupling tool which shows Example 2 of this invention. 本発明の実施例３を示す支柱連結具の使用状態の断面図である。It is sectional drawing of the use condition of the support | pillar coupling tool which shows Example 3 of this invention. 同上、支柱連結具回りの断面図である。It is sectional drawing around a support | pillar coupling tool same as the above. 同上、支柱の分解斜視図である。It is an exploded perspective view of a support | pillar same as the above. 同上、支柱上部の平断面図である。It is a plane sectional view of a support | pillar upper part same as the above. 同上、支柱の設置状態の断面図である。It is sectional drawing of the installation state of a support | pillar same as the above. 本発明の実施例４を示す支柱連結具の使用状態の断面図である。It is sectional drawing of the use condition of the support | pillar coupling tool which shows Example 4 of this invention.

符号の説明Explanation of symbols

１雪崩落石等防護柵（防護体）
２支柱
２Ｕ支柱上部
２Ｓ支柱下部
５支柱連結具
６Ｕ上側受筒部
６Ｓ下側受筒部
11 鍔継手
12 支柱側鍔継手
21 ガイド突条（ガイド部）
22 ガイド溝（ガイド受け部） Protective fence (protective body) such as 1 avalanche rock
2 Support column 2U Support column upper part 2S Support column lower part 5 Support column connector 6U Upper receiving cylinder part 6S Lower receiving cylinder part
11 Fitting
12 Post side fitting
21 Guide ridge (guide section)
22 Guide groove (guide receiving part)

Claims

基礎に固定する支柱下部と、この支柱下部の上部に連結する支柱上部とを連結する支柱連結具において、上側に前記支柱上部の下端を挿入する上側受筒部と、下側に前記支柱下部の上部を挿入する下側受筒部と、前記支柱上部と前記支柱下部の一方に設けられた支柱側鍔継手と、この支柱側鍔継手と接続され前記上側受筒部と前記下側受筒部の一方に設けられた鍔継手とを備えることを特徴とする雪崩・落石等防護体の支柱連結具。 In a strut connector that connects a strut lower part fixed to a foundation and a strut upper part coupled to the upper part of the strut lower part, an upper receiving tube portion for inserting a lower end of the strut upper part on the upper side, and a lower part of the lower strut part on the lower side. A lower receiving tube portion for inserting an upper portion, a support column side joint provided on one of the support column upper portion and the support column lower portion, and the upper support tube portion and the lower receiving tube portion connected to the support column side joint. A support joint for a protective body such as an avalanche or fallen rock, comprising a heel joint provided on one side of the avalanche.

前記上側受筒部と前記下側受筒部の他方に設けられた長さ方向のガイド部と、このガイド部に係合し、前記支柱上部と前記支柱下部の他方に設けられた長さ方向のガイド受け部とを備えることを特徴とする請求項１記載の雪崩・落石等防護体の支柱連結具。 A lengthwise guide portion provided on the other of the upper receiving tube portion and the lower receiving tube portion, and a length direction provided on the other of the upper portion of the support column and the lower portion of the support column. The support connector for a protective body such as an avalanche or fallen rock according to claim 1, further comprising a guide receiving portion.

前記支柱上部と前記支柱下部の他方に設けられた支柱側鍔継手と、この支柱側鍔継手と接続され前記上側受筒部と前記下側受筒部の他方に設けられた鍔継手とを備えることを特徴とする特徴とする請求項１記載の雪崩・落石等防護体の支柱連結具。

A column side flange joint provided on the other of the column upper portion and the column lower portion, and a rod joint connected to the column side flange joint and provided on the other of the upper receiving cylinder portion and the lower receiving cylinder portion. The strut coupler of a protective body such as an avalanche or fallen rock according to claim 1 characterized by the above-mentioned.