JPH11355948A - Electric wire protective tube and construction thereof - Google Patents
Electric wire protective tube and construction thereofInfo
- Publication number
- JPH11355948A JPH11355948A JP15870098A JP15870098A JPH11355948A JP H11355948 A JPH11355948 A JP H11355948A JP 15870098 A JP15870098 A JP 15870098A JP 15870098 A JP15870098 A JP 15870098A JP H11355948 A JPH11355948 A JP H11355948A
- Authority
- JP
- Japan
- Prior art keywords
- shell member
- electric wire
- shell
- members
- protection tube
- 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.)
- Withdrawn
Links
Landscapes
- Electric Cable Installation (AREA)
- Details Of Indoor Wiring (AREA)
- Laying Of Electric Cables Or Lines Outside (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、地中に埋設した電
線や信号線を保護する電線保管及びその施工方法に関す
るものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric wire storage for protecting electric wires and signal lines buried underground, and a method of constructing the same.
【０００２】[0002]
【従来の技術】地中に埋設する電線や信号線（以下、電
線等という）は、不用意な掘削による切断、地震等によ
る地盤の変形による切断、あるいは故意の切断（ゲリラ
等）などから電線等を保護するために、例えば、図７又
は図８に示すように、コンクリート製のトラフ１１内に
電線等２０を配設し、その開口部をコンクリート製の蓋
１２で閉じて地中に埋設し、あるいは鋼管や樹脂管等１
３内に電線等２０を配設して地中に埋設している。2. Description of the Related Art Electric wires and signal lines buried in the ground (hereinafter referred to as electric wires, etc.) can be cut by inadvertent excavation, ground deformation due to earthquakes, etc., or intentional cutting (guerrillas, etc.). For example, as shown in FIG. 7 or FIG. 8, an electric wire 20 is disposed in a concrete trough 11 and its opening is closed with a concrete lid 12 and buried in the ground. Or steel pipe or resin pipe 1
The electric wires 20 and the like are arranged in the inside 3 and buried underground.
【０００３】また、軌道交通施設においては、軌道の下
にこれを横断して通信ケーブルなど（以下、電線等とい
う）が敷設されていることが多い。この場合、通常図９
に示すように、軌道１４又は枕木１５の下（バラスト１
６内）に、これを横断してコンクリート製のトラフ１１
が設置され、このトラフ１１内に電線等を配設してコン
クリート製の蓋１２をすることが多い。[0003] In track transportation facilities, communication cables and the like (hereinafter referred to as electric wires and the like) are often laid under the tracks across the tracks. In this case, FIG.
As shown in the figure, the track 14 or under the sleeper 15 (ballast 1
6), the concrete trough 11
In many cases, electric wires and the like are arranged in the trough 11 and a concrete lid 12 is provided.
【０００４】[0004]
【発明が解決しようとする課題】コンクリート製のトラ
フ１１内に電線等２０を配設し、その開口部をコンクリ
ート製の蓋１２で閉塞して地中に埋設する電線等の直接
埋設方式は従来から広く実施されているが、トラフ１１
及び蓋１２の重量及び容量が大で運搬や施工が面倒であ
り、その上衝撃等に弱く毀れ易いという問題がある。ま
た、隣接するトラフ１１どうしは連結されていないた
め、地中に埋設されたトラフに地震等により引張力が働
くと、隣接するトラフ１１が離れてしまうことがあり、
内部に収容した電線等に引張力が作用して切断されるこ
とがある。A conventional method of directly burying an electric wire or the like in which a wire or the like 20 is disposed in a concrete trough 11 and its opening is closed with a concrete lid 12 and buried in the ground. From the trough 11
In addition, there is a problem that the weight and capacity of the lid 12 are large, and transportation and construction are troublesome. Moreover, since the adjacent troughs 11 are not connected to each other, if a tensile force acts on a trough buried underground due to an earthquake or the like, the adjacent troughs 11 may be separated,
In some cases, the wire or the like housed inside is cut by a tensile force.
【０００５】このような問題を解決するために、例え
ば、実開昭５７−１６８９２６号公報には、ガラス繊維
強化セメントなどからなる長手底板の両側上に長手方向
の係合部を形成し、円弧状またはこれに類似する形状に
湾曲させたカバーの両側縁を底板両側に係合させたケー
ブルなどの防護用トラフが記載されている。しかしなが
ら、このような防護用トラフにおいては、複数のトラフ
を長手方向に連結するにあたっては特別な連結部材を用
いなければならず、また、カバーはその両端部を底板の
係合部に係合させるだけなので、埋設中に外れるおそれ
がある。In order to solve such a problem, for example, Japanese Utility Model Laid-Open Publication No. Sho 57-168926 discloses a method in which longitudinal engaging portions are formed on both sides of a longitudinal bottom plate made of glass fiber reinforced cement or the like. A protective trough, such as a cable, is described in which both sides of a cover curved into an arc or similar shape are engaged on both sides of a bottom plate. However, in such a protective trough, a special connecting member must be used to connect a plurality of troughs in the longitudinal direction, and the cover engages both ends with the engaging portions of the bottom plate. However, there is a risk that it will come off during burial.
【０００６】また、鋼管や樹脂管等１３を用いた場合
は、コンクリート製のトラフ１１に比べて軽量で衝撃等
に対して強度が大であるが、閉鎖断面であるため、既埋
設電線等を再埋設するような場合は、電線等を切断しな
ければならないので、好ましくない。When a steel pipe or a resin pipe 13 is used, it is lighter in weight and has higher strength against impacts and the like than the trough 11 made of concrete. In the case of re-embedding, the electric wires and the like must be cut, which is not preferable.
【０００７】さらに、軌道の下を横断して電線等を敷設
する場合は、トラフ１１がコンクリート製のため列車の
通過の際の負荷や振動等により破損し易く、また、トラ
フ１１が邪魔になってマルチタンパーによる軌道整備が
やり難いなど、種々問題がある。Further, when laying wires or the like across the track, the trough 11 is made of concrete, so that the trough 11 is easily damaged by a load or vibration when the train passes, and the trough 11 becomes an obstacle. There are various problems such as difficulty in track maintenance by multi-tamper.
【０００８】本発明は、上記の課題を解決するためにな
されたもので、軽量で運搬や施工が容易で強固であり、
その上電線等の配置や取出しが容易な電線保護管及びそ
の施工方法を得ることを目的としたものである。The present invention has been made in order to solve the above-mentioned problems, and is lightweight, easy to transport and perform, and strong.
In addition, it is an object of the present invention to obtain an electric wire protection tube in which arrangement and removal of electric wires and the like are easy and a method for constructing the electric wire protection tube.
【０００９】[0009]
【課題を解決するための手段】（１）本発明は、両側縁
部に外側に向けたフランジ部を有する断面ほぼ半円状の
殻部材を対向配置してほぼ円筒状に形成し、内部に電線
等を配設する電線保護管であって、前記殻部材を長手方
向にずらせて対向配置し、これら殻部材のフランジ部を
接合したものである。(1) According to the present invention, a shell member having a substantially semicircular cross section having outwardly directed flanges on both side edges is arranged to face each other and is formed in a substantially cylindrical shape. An electric wire protection tube for arranging electric wires and the like, wherein the shell members are arranged to face each other while being shifted in a longitudinal direction, and flange portions of these shell members are joined.
【００１０】（２）上記（１）の電線保護管において、
第１の殻部材と、該第１の殻部材と同形状の第２の殻部
材及び該第２の殻部材より短い第３の殻部材とを有し、
前記第１の殻部材上にこれと対向して前記第３の殻部材
及び第２の殻部材を配設し、これら上下の殻部材のフラ
ンジ部をそれぞれ接合するようにした。(2) In the electric wire protection tube of the above (1),
A first shell member, a second shell member having the same shape as the first shell member, and a third shell member shorter than the second shell member;
The third shell member and the second shell member are disposed on the first shell member so as to face the first shell member, and the flange portions of the upper and lower shell members are joined to each other.
【００１１】（３）上記（１）又は（２）の殻部材の断
面形状をほぼコ字状又は多角形状に形成した。(3) The cross-sectional shape of the shell member of (1) or (2) is substantially U-shaped or polygonal.
【００１２】（４）また、本発明に係る電線保護管の施
工方法は、地盤に電線を埋設する穴を掘削する工程と、
両側縁部に外側に向けたフランジ部を有する断面ほぼ半
円状の第１の殻部材を前記穴内に設置する工程と、前記
第１の殻部材内に電線等を配設する工程と、前記第１の
殻部材とほぼ同形状の第２の殻部材を前記電線等の上か
ら前記第１の殻部材上に対向配置する工程と、前記第
１、第２の殻部材のフランジ部を接合する工程とを有
し、上記の工程を行うにあたり、複数の前記第１の殻部
材の長手方向の対峙部と、複数の前記第２の殻部材の長
手方向の対峙部とをずらせて前記フランジ部を接合する
ようにしたものである。(4) The method for constructing an electric wire protection tube according to the present invention includes a step of excavating a hole for burying the electric wire in the ground,
Installing a first shell member having a substantially semicircular cross section having outwardly directed flange portions on both side edges in the hole; arranging an electric wire or the like in the first shell member; A step of arranging a second shell member having substantially the same shape as the first shell member on the first shell member from above the electric wire or the like, and joining the flange portions of the first and second shell members; In performing the above-described step, the flanges are displaced by displacing the longitudinally facing portions of the plurality of first shell members and the longitudinally facing portions of the plurality of second shell members. The parts are joined.
【００１３】（５）また、本発明に係る電線保護管の施
工方法は、地中に埋設してある電線等の周囲を掘削し、
電線等を残して既設のトラフ等を撤去する工程と、両側
縁部に外側に向けたフランジ部を有する断面ほぼ半円状
の第１の殻部材を前記電線等の下方に設置する工程と、
前記第１の殻部材とほぼ同形状の第２の殻部材を前記電
線等の上方から前記第１の殻部材上に対向配置する工程
と、前記第１、第２の殻部材のフランジ部を接合する工
程とを有し、上記の工程を行うにあたり、複数の前記第
１の工程の長手方向の対峙部と、複数の前記第２の殻部
材の長手方向の対峙部とをずらせて前記フランジ部を接
合するようにしたものである。(5) The method for constructing an electric wire protection tube according to the present invention includes excavating around an electric wire or the like buried underground,
Removing the existing troughs and the like while leaving the wires and the like, and installing a first shell member having a substantially semicircular cross section having flange portions directed outward on both side edges, below the wires and the like,
A step of arranging a second shell member having substantially the same shape as the first shell member on the first shell member from above the electric wire or the like, and a flange portion of the first and second shell members. A bonding step, wherein in performing the above-mentioned step, the flange is formed by shifting a plurality of longitudinally facing portions of the first step and a plurality of second shell members in the longitudinal direction. The parts are joined.
【００１４】（６）さらに、地中に埋設してある電線等
の周囲を掘削して既設のトラフ等から電線等を取出す工
程と、地盤に電線等を埋設する穴を掘削する工程と、両
側縁部に外側に向けたフランジ部を有する断面ほぼ半円
状の第１の殻部材を前記穴内に設置する工程と、前記第
１の殻部材内に前記電線等を移動する工程と、前記第１
の殻部材とほぼ同形状の第２の殻部材を前記電線等の上
方から前記第１の殻部材上に対向配置する工程と、前記
第１、第２の殻部材のフランジ部を接合する工程とを有
し、上記の工程を行うにあたり、複数の前記第１の殻部
材の長手方向の対峙部と、複数の前記第２の殻部材の長
手方向の対峙部とをずらせて前記フランジ部を接合する
ようにしたものである。(6) A step of excavating around the electric wires and the like buried in the ground to take out the electric wires and the like from the existing troughs and the like, and a step of excavating holes for burying the electric wires and the like in the ground. Installing a first shell member having a substantially semicircular cross section having an outwardly directed flange portion at an edge portion in the hole; moving the electric wire or the like into the first shell member; 1
Disposing a second shell member having substantially the same shape as that of the first shell member on the first shell member from above the electric wire and the like; and joining the flange portions of the first and second shell members. In performing the above process, the flange portion is shifted by displacing a longitudinally facing portion of the plurality of first shell members and a longitudinally facing portion of the plurality of second shell members. It is intended to be joined.
【００１５】[0015]
【発明の実施の形態】［実施の形態１］図１は本発明に
係る電線保護管の斜視図、図２は図１の電線保護管を構
成する殻部材の正面図、平面図及び殻部材の他の例の平
面図、図３は図２の殻部材の拡大側面図である。FIG. 1 is a perspective view of a wire protection tube according to the present invention, and FIG. 2 is a front view, a plan view, and a shell member of a shell constituting the wire protection tube of FIG. FIG. 3 is an enlarged side view of the shell member of FIG. 2.
【００１６】図において、２は鋼板を曲げ加工して形成
した断面ほぼ半円状の本体部３と、本体部３の両側縁部
を外側へ水平に折曲げて形成したフランジ部４ａ，４ｂ
とからなる殻部材で、両フランジ部４ａ，４ｂの対向す
る位置にはボルト挿通穴５ａ〜５ｄ（以下、単に５と記
すことがある）が設けられている。この殻部材２は、図
４に示すように、上下１組の殻部材２，２の開口部を対
向配置してそのフランジ部４ａ，４ｂをボルト・ナット
６，７で固定することにより、ほぼ円筒状の電線保護管
１が構成される。In FIG. 1, reference numeral 2 denotes a main body 3 having a substantially semicircular cross section formed by bending a steel plate, and flanges 4a and 4b formed by horizontally bending both side edges of the main body 3 outward.
And bolt insertion holes 5a to 5d (hereinafter, may be simply referred to as 5) are provided at opposing positions of the flange portions 4a, 4b. As shown in FIG. 4, the shell member 2 is substantially formed by arranging the openings of a pair of upper and lower shell members 2 and 2 facing each other and fixing the flange portions 4a and 4b with bolts and nuts 6 and 7, respectively. A cylindrical electric wire protection tube 1 is configured.
【００１７】上記のフランジ部４ａ，４ｂに設けたボル
ト挿通穴５は、例えば、図２（ｂ）に示すように、一端
からＬの位置に第１のボルト挿通穴５ａが設けられ、こ
の第１のボルト挿通穴から２Ｌの位置に第２のボルト挿
通穴５ｂが、さらに、これから２Ｌ，２Ｌの位置にそれ
ぞれ第３、第４のボルト挿通穴５ｃ，５ｄが設けられて
おり、第４のボルト挿通穴５ｄから他端までの長さはＬ
となっている。As shown in FIG. 2B, for example, as shown in FIG. 2B, a first bolt insertion hole 5a is provided at a position L from one end of the bolt insertion hole 5 provided in the flange portions 4a and 4b. A second bolt insertion hole 5b is provided at a position 2L from the first bolt insertion hole, and third and fourth bolt insertion holes 5c and 5d are provided at positions 2L and 2L from the first bolt insertion hole, respectively. The length from the bolt insertion hole 5d to the other end is L
It has become.
【００１８】図２（ｃ）は殻部材２ａの長さを図１
（ａ），（ｂ）の殻部材２の２分の１にしたもので、両
端部からボルト挿通孔５ａ，５ｄまでの長さをそれぞれ
Ｌ、両ボルト挿通穴５ａ，５ｄ間の長さを２Ｌとした。FIG. 2C shows the length of the shell member 2a in FIG.
The length from the both ends to the bolt insertion holes 5a and 5d is L, and the length between both bolt insertion holes 5a and 5d is one half of the shell member 2 of (a) and (b). It was 2 L.
【００１９】次に、上記のように構成した電線保護管１
を用いて、新しく電線等を埋設する場合の施工例につい
て説明する。先ず、電線等の敷設箇所に所定の深さの穴
を掘り、その底部に開口部を上にして殻部材２を穴の長
手方向に沿って順次端部を対峙させて設置し、連設され
た本体３内に電線等を配設してその周囲に川砂等を充填
する。次に、電線等の上から殻部材２上に開口部を下に
して殻部材２ａ，２に載置し、両者のフランジ部４ａ，
４ｂに設けたボルト挿通穴５にボルト６を挿通し、ナッ
ト７を締めて一体に固定する。Next, the electric wire protection tube 1 constructed as described above.
A construction example in a case where a wire or the like is newly buried will be described with reference to FIG. First, a hole of a predetermined depth is dug in a place where an electric wire or the like is laid, and the shell member 2 is installed at the bottom thereof with the opening thereof facing upward, with the ends sequentially facing each other along the longitudinal direction of the hole. An electric wire or the like is disposed in the main body 3 and the surrounding area is filled with river sand or the like. Next, they are placed on the shell members 2a and 2 from above the electric wires and the like with the opening portions facing down, and the flange portions 4a and
The bolt 6 is inserted into the bolt insertion hole 5 provided in 4b, and the nut 7 is tightened and fixed integrally.
【００２０】この場合、図５に示すように、穴の底部に
は図１（ａ）に示す長い殻部材２を長手方向に連設し、
最終端の殻部材のみ図１（ｃ）に示す短い殻部材２ａを
設置する。一方、その上に載置する殻部材は、その始端
部に短い殻部材２ａを載置し、以下、長い殻部材２を連
設する。そして、対向する上下の殻部材２ａと２、２と
２、２と２ａのフランジ部４ａ，４ｂに設けた各ボルト
挿通穴５にぞれぞれ下からボルト６を挿通し、フランジ
部４ａ，４ｂの上からナット７を螺入してこれらを一体
に固定する。In this case, as shown in FIG. 5, a long shell member 2 shown in FIG.
Only a short shell member 2a shown in FIG. On the other hand, a short shell member 2a is mounted on the starting end of the shell member to be mounted thereon, and the long shell member 2 is connected continuously thereafter. Then, bolts 6 are inserted from below into the bolt insertion holes 5 provided in the flange portions 4a, 4b of the upper and lower shell members 2a and 2, 2 and 2, 2 and 2a, respectively. A nut 7 is screwed in from above 4b to fix them integrally.
【００２１】このように、本発明においては、殻部材
２，２ａが小形かつ軽量なので、輸送や施工が容易であ
る。また、長手方向に連設する殻部材２，２ａの対峙部
を、上下をずらせて一体に固定するようにしたので、地
震等によって電線保護管１に引張力が作用しても電線保
護管１が分離するおそれがなく、このため、内部に配設
された電線等が切断されることもない。また、電線保護
管１は上下に分割できるので、電線等の配設が容易であ
り、さらに電線等を切断することなく簡単に電線保護管
１から取出すことができる。As described above, in the present invention, since the shell members 2 and 2a are small and lightweight, transportation and construction are easy. Further, the opposed portions of the shell members 2 and 2a connected in the longitudinal direction are vertically fixed to be integrally fixed, so that even if a tensile force acts on the wire protection tube 1 due to an earthquake or the like, the wire protection tube 1 is not fixed. There is no risk of separation, and therefore, the wires and the like disposed inside are not cut. Further, since the electric wire protection tube 1 can be divided into upper and lower parts, it is easy to dispose the electric wires and the like, and furthermore, the electric wires and the like can be easily taken out from the electric wire protection tube 1 without cutting.
【００２２】［実施例］実施例では、厚さ４ｍｍの一般
構造用圧延鋼板ＳＳ４００を、外径２００ｍｍの半円状
に曲げ加工して本体部３を形成し、その両側縁部を外方
に水平に折曲げて幅４５ｍｍのフランジ部４ａ，４ｂを
設けた。そして、始端部から第１のボルト挿通穴５ａま
での長さＬを２５０ｍｍ、第１のボルト挿通穴５ａから
第４のボルト挿通穴５ｄまでの各ボルト挿通穴５ａ〜５
ｄ間の長さ２Ｌをそれぞれ５００ｍｍとし、第４のボル
ト挿通穴５ｄから終端部までの長さＬを２５０ｍｍとし
て、全長２０００ｍｍの殻部材２を構成した。このとき
の殻部材２の重量は１８ｋｇｆであった。Example In the example, a main body 3 was formed by bending a rolled steel sheet for general structure SS400 having a thickness of 4 mm into a semicircle having an outer diameter of 200 mm, and the both side edges thereof were turned outward. The flange portions 4a and 4b having a width of 45 mm were provided by being bent horizontally. The length L from the start end to the first bolt insertion hole 5a is 250 mm, and each of the bolt insertion holes 5a to 5d from the first bolt insertion hole 5a to the fourth bolt insertion hole 5d is set.
The length 2L between d was set to 500 mm, and the length L from the fourth bolt insertion hole 5d to the end portion was set to 250 mm to form the shell member 2 having a total length of 2000 mm. At this time, the weight of the shell member 2 was 18 kgf.
【００２３】同様にして、図２（ｃ）に示す殻部材２ａ
もＬを２５０ｍｍ、２Ｌを５００ｍｍとし、全長を１０
００ｍｍとした。そして、これら殻部材２，２ａに対し
て、防食のため溶融亜鉛メッキ（付着量５５０ｇ／ｃｍ
2 ）を施した。なお、ボルト６は、Ｍ１６×４０Ｌのも
のを用いた。Similarly, the shell member 2a shown in FIG.
L is 250 mm, 2L is 500 mm, and the total length is 10
00 mm. Then, these shell members 2 and 2a are hot-dip galvanized (corrosion amount 550 g / cm) for corrosion protection.
2 ). The bolt 6 used was M16 × 40L.
【００２４】［実施の形態２］実施の形態１では、本発
明に係る電線保護管１を用いて新しく電線等を敷設する
場合について説明したが、本実施の形態は、本発明に係
る電線保護管により、地中に埋設した既設の電線等を保
護し、あるいは、地中に埋設した既設の電線等を移動す
る場合の施工方法に関すものである。以下、電線等が配
設されたコンクリート製のトラフが破損したため、本発
明に係る電線保護管１と交換する場合の施工例について
説明する。[Second Embodiment] In the first embodiment, the case where a new electric wire or the like is laid by using the electric wire protection tube 1 according to the present invention has been described. The present invention relates to a construction method for protecting an existing electric wire or the like buried in the ground with a pipe or moving an existing electric wire or the like buried in the ground. Hereinafter, a description will be given of an example in which the concrete trough on which the electric wires and the like are disposed is damaged and is replaced with the electric wire protection tube 1 according to the present invention.
【００２５】先ず、埋設されているトラフの周囲を掘削
し、蓋を除去する。ついで、トラフ内に配設されている
電線等を持ち上げてトラフの上方に保持し、トラフを引
上げて撤去する。以下、新設の場合と同様に電線等の下
方に開口部を上にして殻部材２を長手方向に連設し、電
線等を降して殻部材２の本体３内に配設する。次に、こ
の殻部材２の上にから部材２ａ，２を開口部を下にして
載置し、対向配置された殻部材２ａと２、２と２及び２
と２ａのフランジ部４ａ，４ｂに設けたボルト挿通穴５
にそれぞれボルト６を挿通してナット７で固定し、電線
等を新しい電線保護管１内に配置する。最後に掘削した
土砂を埋戻せば、コンクリート製のトラフと本発明に係
る電線保護管１との交換作業が終了する。First, the area around the buried trough is excavated, and the lid is removed. Then, the electric wires and the like disposed in the trough are lifted and held above the trough, and the trough is pulled up and removed. Hereinafter, similarly to the case of the new construction, the shell member 2 is continuously connected in the longitudinal direction with the opening part upward below the electric wires and the like, and the electric wires and the like are lowered and disposed in the main body 3 of the shell member 2. Next, the members 2a, 2 are placed on the shell member 2 with the opening portions facing downward, and the shell members 2a, 2, 2, 2 and 2, which are arranged to face each other.
Bolt insertion holes 5 provided in flange portions 4a and 4b of
The bolts 6 are respectively inserted through the nuts and fixed with the nuts 7, and the electric wires and the like are arranged in the new electric wire protection tube 1. When the excavated earth and sand is backfilled, the replacement operation of the concrete trough with the wire protection tube 1 according to the present invention is completed.
【００２６】また、既設の電線等をその近傍に移動する
場合は、上記の場合と同様に、埋設されているトラフの
周囲を掘削して蓋を除去し、トラフ内の電線等を持ち上
げてトラフの上方に保持し、トラフを除去する。一方、
電線等の移動箇所に所定の深さの新しい穴を掘り、新設
の場合と同様にこの穴の底部に開口部を上にして殻部材
２を連設し、電線等を移動して新しい穴内に降して殻部
材２の本体３内に配設する。以下上記と同様にこの殻部
材２の上に殻部材２ａ，２を下向きにして載置し、ボル
ト・ナット６，７で固定する。そして、トラフが埋めら
れた穴及び新しい穴を埋戻せば、電線等の移動が完了す
る。When an existing electric wire or the like is to be moved to the vicinity thereof, similarly to the above case, the lid is removed by excavating around the buried trough and the electric wire or the like in the trough is lifted and the trough is lifted. And remove the trough. on the other hand,
A new hole of a predetermined depth is dug in the moving part of the electric wire, etc., and the shell member 2 is connected to the bottom of the hole with the opening upward as in the case of the new installation, and the electric wire and the like are moved to the new hole. It is lowered and disposed in the main body 3 of the shell member 2. Thereafter, the shell members 2a and 2 are placed on the shell member 2 with the shell members 2a and 2 facing downward and fixed with the bolts and nuts 6 and 7, as described above. Then, if the hole in which the trough is buried and the new hole are buried, the movement of the electric wire and the like is completed.
【００２７】［実施の形態３］本実施の形態は、図６に
示すように、電線等が配設された電線保護管１を軌道の
下方にこれを横断して敷設する場合の施工方法に関すも
のである。先ず、軌道１５の下方に新しい電線等を敷設
する場合は、枕木１４を移動し、バラスト１６及びその
下方の地盤に軌道１５を横断して穴を掘削する。そし
て、この穴の底部に開口部を上にして殻部材２，２ａを
設置し、本体３内に電線等を配設したのちその上に開口
部を下にして殻部材２ａ，２を載置し、両者をボルト・
ナット６，７で固定する。[Embodiment 3] This embodiment is directed to a construction method in which an electric wire protection tube 1 provided with electric wires and the like is laid across a track below the track as shown in FIG. Is concerned. First, when laying a new electric wire or the like below the track 15, the sleeper 14 is moved, and a hole is excavated across the track 15 in the ballast 16 and the ground thereunder. Then, the shell members 2 and 2a are placed at the bottom of the hole with the opening facing upward, electric wires and the like are arranged inside the main body 3, and the shell members 2a and 2 are placed thereon with the opening facing downward. And bolt both
Fix with nuts 6,7.
【００２８】これにより、電線等の一部は電線保護管１
内に配設されその両側は外部に取出されている。この状
態で穴を埋戻して枕木１４を元の位置に戻し、バラスト
１６を搗き固める。そして、最後に電線保護管１の両端
部に電線等の取入れ、取出しのためのハンドホール１７
を設置する。As a result, a part of the electric wire or the like is
It is arranged inside and both sides are taken out. In this state, the hole is backfilled, the sleeper 14 is returned to its original position, and the ballast 16 is polished. Finally, a handhole 17 is provided at both ends of the wire protection tube 1 for taking in and taking out wires and the like.
Is installed.
【００２９】また、従来技術として図９で説明したよう
に、軌道１５又は枕木１４の下に設置したコンクリート
製のトラフ１１に代えて、本発明に係る電線保護管１を
設置とする場合は、先ず、トラフ１１の蓋１２を除去
し、トラフ１１内に配設されている電線等をトラフ１１
の上まで持上げて保持し、トラフ１１を撤去する。この
とき、要すれば電線等を横方向に移動する。そして、枕
木１４を移動してトラフ１１を撤去したあとをバラスト
１６から地盤まで所定の深さの穴を掘削する。When the electric wire protection tube 1 according to the present invention is installed in place of the concrete trough 11 installed under the track 15 or the sleeper 14 as described with reference to FIG. First, the lid 12 of the trough 11 is removed, and electric wires and the like provided in the trough 11 are connected to the trough 11.
Is lifted and held, and the trough 11 is removed. At this time, if necessary, the electric wires and the like are moved in the lateral direction. After the sleeper 14 is moved and the trough 11 is removed, a hole having a predetermined depth is excavated from the ballast 16 to the ground.
【００３０】ついで、穴の底に開口部を上にして殻部材
２，２ａを連設し、穴内に電線等を降して殻部材２，２
ａの本体３内に配設する。そして、この殻部材２，２ａ
の上に開口部を下にして殻部材２ａ，２を載置し、両者
のフランジ部４ａ，４ｂをボルト・ナット６，７で一体
に固定する。これにより、図６に示すように、電線等は
バラスト１６の下方においてほぼ円筒状の電線保護管１
内に配設される。最後に穴を埋戻し、枕木１４を元の位
置に戻してバラスト１６を搗き固めたのち、電線等の取
入れ、取出しのためのハンドホール１７を設置する。な
お、電線等を従来の位置から移動する場合も上記に準じ
て施工する。Next, the shell members 2 and 2a are connected to the bottom of the hole with the opening facing upward, and an electric wire or the like is dropped into the hole to remove the shell members 2 and 2a.
a is disposed in the main body 3. And the shell members 2, 2a
The shell members 2a, 2 are placed with their openings downward, and the flange portions 4a, 4b of the two are integrally fixed with bolts and nuts 6, 7. As a result, as shown in FIG.
It is arranged in. Finally, the hole is backfilled, the sleeper 14 is returned to the original position, and the ballast 16 is polished and hardened. Then, a handhole 17 for taking in and taking out electric wires and the like is installed. In addition, when moving an electric wire etc. from the conventional position, it carries out according to the above.
【００３１】上記の説明では、断面ほぼ半円状の本体部
３とフランジ部４ａ，４ｂとにより殻部材２，２ａを構
成した場合を示したが、本体部の断面形状をほぼコ字状
あるいは多角形状に形成してもよい。また、殻部材２，
２ａを鋼板を曲げ加工して構成した場合を示したが合成
樹脂で成形してもよい。さらに、２種類の長さの殻部材
２，２ａを設けた場合を示したが、本体部の外径及び長
さは適宜選択することができる。In the above description, the case where the shell members 2 and 2a are constituted by the main body 3 and the flanges 4a and 4b having a substantially semicircular cross section has been described. It may be formed in a polygonal shape. The shell member 2,
Although the case where 2a is formed by bending a steel plate is shown, it may be formed of a synthetic resin. Furthermore, although the case where the shell members 2 and 2a having two kinds of lengths are provided is shown, the outer diameter and the length of the main body can be appropriately selected.
【００３２】[0032]
【発明の効果】（１）本発明は、両側縁部に外側に向け
たフランジ部を有する断面ほぼ半円状の殻部材を対向配
置してほぼ円筒状に形成し、内部に電線等を配設する電
線保護管であって、前記殻部材を長手方向にずらせて対
向配置し、これら殻部材をフランジ部を接合するように
したので、殻部材の構造が簡単で小形かつ軽量であり、
輸送や施工が容易である。(1) According to the present invention, shell members each having a substantially semicircular cross section having outwardly directed flange portions on both side edges are arranged to face each other, and are formed in a substantially cylindrical shape. In the electric wire protection tube to be installed, the shell members are displaced in the longitudinal direction so as to face each other, and these shell members are joined to the flange portion, so that the structure of the shell members is simple, small and lightweight,
Transport and construction are easy.
【００３３】また、殻部材を長手方向にずらせて対向配
置してこれらのフランジ部を接合するようにしたので、
地震等によって電線保護管に引張力が作用しても分離す
るおそれがなく、このため内部に配設された電線等が切
断されることもない。さらに、電線保護管は上下に分割
できるので、電線等の配設が容易であり、また、電線等
を切断することなく電線保護管から簡単に取出すことが
できる。Also, since the shell members are displaced in the longitudinal direction to be opposed to each other and these flange portions are joined,
Even if a tensile force acts on the wire protection tube due to an earthquake or the like, there is no possibility that the wire protection tube will be separated, and therefore, the wires and the like disposed inside will not be cut. Further, since the electric wire protection tube can be divided into upper and lower parts, it is easy to dispose the electric wire and the like, and it is possible to easily take out the electric wire protection tube without cutting the electric wire and the like.
【００３４】（２）上記（１）の電線保護管において、
第１の殻部材と、該第１の殻部材と同形状の第２の殻部
材及び該第２の殻部材より短い第３の殻部材とを有し、
前記第１の殻部材上にこれと対向して前記第３の殻部材
及び第２の殻部材を配設し、これら上下の殻部材のフラ
ンジ部をそれぞれ接合するようにしたので、第１の殻部
材と、第２、第３の殻部材とを容易にずらせて接合する
ことができる。(2) In the electric wire protection tube of the above (1),
A first shell member, a second shell member having the same shape as the first shell member, and a third shell member shorter than the second shell member;
The third shell member and the second shell member are disposed on the first shell member so as to face the first shell member, and the flange portions of the upper and lower shell members are joined to each other. The shell member and the second and third shell members can be easily shifted and joined.
【００３５】（３）上記（１）又は（２）の殻部材の断
面形状がほぼコ字状又は多角形状に形成したので、設計
及び選択の自由度を増すことができる。(3) Since the cross-sectional shape of the shell member of (1) or (2) is substantially U-shaped or polygonal, the degree of freedom in design and selection can be increased.
【００３６】（４）また、本発明に係る電線保護管の施
工方法は、地盤に電線等を埋設する穴を掘削する工程
と、両側縁部に外側に向けたフランジ部を有する断面ほ
ぼ半円状の第１の殻部材を前記穴内に設置する工程と、
前記第１の殻部材内に電線等を配設する工程と、前記第
１の殻部材とほぼ同形状の第２の殻部材を前記電線等の
上から前記第１の殻部材上に対向配置する工程と、前記
第１、第２の殻部材のフランジ部を接合する工程とを有
し、上記の工程を行うにあたり、複数の前記第１の殻部
材の長手方向の対峙部と、複数の前記第２の殻部材の長
手方向の対峙部とをずらせて前記フランジ部を接合する
ようにしたので、地中に電設等を敷設するにあたり、電
線保護管内に電線等を容易かつ確実に配設することがで
き、上記（１）と同様の効果を得ることができる。(4) In the method for constructing an electric wire protection tube according to the present invention, a step of digging holes for burying electric wires and the like in the ground, and a substantially semicircular cross section having outwardly directed flange portions on both side edges. Placing a first shell member in the hole in the shape of a shell;
Disposing an electric wire or the like in the first shell member; and arranging a second shell member having substantially the same shape as the first shell member on the first shell member from above the electric wire or the like. And a step of joining the flange portions of the first and second shell members. In performing the above-described step, the plurality of first shell members face each other in the longitudinal direction; Since the flange portion is joined by shifting the facing portion of the second shell member in the longitudinal direction, electric wires and the like are easily and reliably arranged in the electric wire protection tube when laying electric equipment etc. underground. And the same effect as the above (1) can be obtained.
【００３７】（５）また、本発明に係る電線保護管の施
工方法は、地中に埋設してある電線等の周囲を掘削し、
電線等を残して既設のトラフ等を撤去する工程と、両側
縁部に外側に向けたフランジ部を有する断面ほぼ半円状
の第１の殻部材を前記電線等の下方に設置する工程と、
前記第１の殻部材とほぼ同形状の第２の殻部材を前記電
線等の上方から前記第１の殻部材上に対向配置する工程
と、前記第１、第２の殻部材のフランジ部を接合する工
程とを有し、上記の工程を行うにあたり、複数の前記第
１の殻部材の長手方向の対峙部と、複数の前記第２の殻
部材の長手方向の対峙部とをずらせて前記フランジ部を
接合するようにしたので、地中に埋設された既設の電線
等を保護するトラフを本発明に係る電線保護管と容易か
つ確実に交換することができ、かつ上記（１）と同様の
効果を得ることができる。(5) In the method for constructing an electric wire protection tube according to the present invention, excavating around an electric wire or the like buried in the ground,
Removing the existing troughs and the like while leaving the wires and the like, and installing a first shell member having a substantially semicircular cross section having flange portions directed outward on both side edges, below the wires and the like,
A step of arranging a second shell member having substantially the same shape as the first shell member on the first shell member from above the electric wire or the like, and a flange portion of the first and second shell members. Bonding, and in performing the above-described steps, the longitudinally facing portions of the plurality of first shell members and the longitudinally facing portions of the plurality of second shell members are shifted from each other. Since the flange portion is joined, the trough for protecting the existing electric wires and the like buried underground can be easily and reliably replaced with the electric wire protection tube according to the present invention, and the same as (1) above. The effect of can be obtained.
【００３８】（６）さらに、地中に埋設してある電線等
の周囲を掘削して既設のトラフ等から電線等を取出す工
程と、地盤に電線等を埋設する穴を掘削する工程と、両
側縁部に外側に向けたフランジ部を有する断面ほぼ半円
状の第１の殻部材を前記穴内に設置する工程と、前記第
１の殻部材内に前記電線等を移動する工程と、前記第１
の殻部材とほぼ同形状の第２の殻部材を前記電線等の上
方から前記第１の殻部材上に対向配置する工程と、前記
第１、第２の殻部材のフランジ部を接合する工程とを有
し、上記の工程を行うにあたり、複数の前記第１の殻部
材の長手方向の対峙部と、複数の前記第２の殻部材の長
手方向の対峙部とをずらせて前記フランジ部を接合する
ようにしたので、地中に埋設された既設の電線等を容易
かつ確実に移動して電線保護管内に配設することがで
き、かつ上記（１）と同様の効果を得ることができる。(6) Further, a step of excavating around electric wires and the like buried underground to take out electric wires and the like from an existing trough and the like, and a step of excavating holes for embedding electric wires and the like in the ground, Installing a first shell member having a substantially semicircular cross section having an outwardly directed flange portion at an edge portion in the hole; moving the electric wire or the like into the first shell member; 1
Disposing a second shell member having substantially the same shape as that of the first shell member on the first shell member from above the electric wire and the like; and joining the flange portions of the first and second shell members. In performing the above process, the flange portion is shifted by displacing a longitudinally facing portion of the plurality of first shell members and a longitudinally facing portion of the plurality of second shell members. Since the joining is performed, the existing electric wire or the like buried in the ground can be easily and reliably moved and disposed in the electric wire protection tube, and the same effect as the above (1) can be obtained. .
【図１】本発明に係る電線保護管の実施の形態の斜視図
である。FIG. 1 is a perspective view of an embodiment of a wire protection tube according to the present invention.
【図２】図１の電線保護管を構成する殻部材の正面図、
平面図及び他の例の平面図である。FIG. 2 is a front view of a shell member constituting the wire protection tube of FIG. 1;
It is a top view and the top view of another example.
【図３】図２の拡大側面図である。FIG. 3 is an enlarged side view of FIG. 2;
【図４】図１の拡大断面図である。FIG. 4 is an enlarged sectional view of FIG.
【図５】本発明の施工方法の説明図である。FIG. 5 is an explanatory view of a construction method of the present invention.
【図６】本発明の他の施工方法の説明図である。FIG. 6 is an explanatory view of another construction method of the present invention.
【図７】従来の電線等を保護するトラフの斜視図であ
る。FIG. 7 is a perspective view of a conventional trough for protecting electric wires and the like.
【図８】従来の電線等を保護する鋼管の斜視図である。FIG. 8 is a perspective view of a conventional steel pipe for protecting electric wires and the like.
【図９】従来の軌道を横断して設置されたトラフの説明
図である。FIG. 9 is an explanatory view of a trough installed across a conventional track.
１ 電線保護管 ２，２ａ 殻部材 ３ 本体部 ４ａ，４ｂ フランジ部 ５ ボルト挿通穴 ６ ボルト ７ ナット １４ 枕木 １５ 軌道 １６ バラスト DESCRIPTION OF SYMBOLS 1 Electric wire protection tube 2, 2a Shell member 3 Main part 4a, 4b Flange part 5 Bolt insertion hole 6 Bolt 7 Nut 14 Sleeper 15 Track 16 Ballast
───────────────────────────────────────────────────── フロントページの続き (72)発明者 西野 征規男 東京都千代田区丸の内一丁目１番２号 日 本鋼管株式会社内 (72)発明者 小間 憲彦 埼玉県熊谷市大字三ケ尻6100番地 日本鋼 管ライトスチール株式会社内 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Seikio Nishino 1-2-1, Marunouchi, Chiyoda-ku, Tokyo Japan Steel Pipe Co., Ltd. Light Steel Corporation
Claims (6)
する断面ほぼ半円状の殻部材を対向配置してほぼ円筒状
に形成し、内部に電線等を配設する電線保護管であっ
て、 前記殻部材を長手方向にずらせて対向配置し、これら殻
部材をフランジ部を接合したとを特徴とする電線保護
管。1. An electric wire protection tube in which shell members each having a substantially semicircular cross section and having a flange portion directed outward on both side edges are formed in a substantially cylindrical shape by facing each other, and an electric wire and the like are disposed inside. An electric wire protection tube characterized in that the shell members are opposed to each other while being shifted in the longitudinal direction, and these shell members are joined to a flange portion.
状の第２の殻部材及び該第２の殻部材より短い第３の殻
部材とを有し、前記第１の殻部材上にこれと対向して前
記第３の殻部材及び第２の殻部材を配設し、これら上下
の殻部材のフランジ部をそれぞれ接合したことを特徴と
する請求項１記載の電線保護管。A first shell member, a second shell member having the same shape as the first shell member, and a third shell member shorter than the second shell member; The electric wire protection according to claim 1, wherein the third shell member and the second shell member are disposed on the shell member so as to face the shell member, and the flange portions of the upper and lower shell members are respectively joined. tube.
形状である請求項１又は２記載の電線保護管。3. The electric wire protection tube according to claim 1, wherein the cross-sectional shape of the shell member is substantially U-shaped or polygonal.
護管の施工方法であって、 地盤に電線等を埋設する穴を掘削する工程と、 両側縁部に外側に向けたフランジ部を有する断面ほぼ半
円状の第１の殻部材を前記穴内に設置する工程と、 前記第１の殻部内に電線等を配設する工程と、 前記第１の殻部材とほぼ同形状の第２の殻部材を前記電
線等の上方から前記第１の殻部材上に対向配置する工程
と、 前記第１、第２の殻部材のフランジ部を接合する工程と
を有し、 上記の工程を行うにあたり、複数の前記第１の殻部材の
長手方向の対峙部と、複数の前記第２の殻部材の長手方
向の対峙部とをずらせて前記フランジ部を接合すること
を特徴とする電線保護管の施工方法。4. A method for constructing an electric wire protection tube for protecting electric wires and the like buried in the ground, comprising: excavating holes for burying electric wires and the like in the ground; and forming flanges facing outward on both side edges. Installing a first shell member having a substantially semicircular cross section in the hole, arranging an electric wire or the like in the first shell portion, and a second shell having substantially the same shape as the first shell member. A step of disposing the shell member on the first shell member from above the electric wire or the like, and a step of joining the flange portions of the first and second shell members. In this case, the flange portions are joined by shifting the longitudinally opposed portions of the plurality of first shell members and the longitudinally opposed portions of the plurality of second shell members. Construction method.
線保護管の施工方法であって、 地中に埋設してある電線等の周囲を掘削し、電線等を残
して既設のトラフ等を撤去する工程と、 両側縁部に外側に向けたフランジ部を有する断面ほぼ半
円状の第１の殻部材を前記電線等の下方に設置する工程
と、 前記第１の殻部材とほぼ同形状の第２の殻部材を前記電
線等の上方から前記第１の殻部材上に対向配置する工程
と、 前記第１、第２の殻部材のフランジ部を接合する工程と
を有し、 上記の工程を行うにあたり、複数の前記第１の工程の長
手方向の対峙部と、複数の前記第２の殻部材の長手方向
の対峙部とをずらせて前記フランジ部を接合することを
特徴とする電線保護管の施工方法。5. A method for constructing an electric wire protection tube for protecting electric wires and the like buried in the ground, comprising excavating around the electric wires and the like buried in the ground and leaving the electric wires and the like in an existing trough. Removing a first shell member having a substantially semicircular cross section having outwardly directed flanges on both side edges, below the electric wire or the like; A step of arranging a second shell member having the same shape on the first shell member from above the electric wire or the like, and a step of joining flange portions of the first and second shell members; In performing the above step, the flange portions are joined by shifting a plurality of the longitudinally facing portions of the first step and a plurality of the second shell members in the longitudinal direction. How to construct a protective wire tube.
線保護管の施工方法であって、 地中に埋設してある電線等の周囲を掘削して既設のトラ
フ等から電線等を取出す工程と、 地盤に電線等を埋設する穴を掘削する工程と、 両側縁部に外側に向けたフランジ部を有する断面ほぼ半
円状の第１の殻部材を前記穴内に設置する工程と、 前記第１の殻部材内に前記電線等を移動する工程と、 前記第１の殻部材とほぼ同形状の第２の殻部材を前記電
線等の上方から前記第１の殻部材上に対向配置する工程
と、 前記第１、第２の殻部材のフランジ部を接合する工程と
を有し、 上記の工程を行うにあたり、複数の前記第１の殻部材の
長手方向の対峙部と、複数の前記第２の殻部材の長手方
向の対峙部とをずらせて前記フランジ部を接合すること
を特徴とする電線保護管の施工方法。6. A method for constructing an electric wire protection tube for protecting electric wires and the like buried in the ground, comprising excavating around the electric wires and the like buried in the ground and removing the electric wires and the like from an existing trough and the like. Taking out, excavating a hole for burying an electric wire or the like in the ground, and installing a first shell member having a substantially semicircular cross section having flange portions directed outward on both side edges, in the hole, Moving the electric wire or the like into the first shell member; and disposing a second shell member having substantially the same shape as the first shell member on the first shell member from above the electric wire or the like. And a step of joining the flange portions of the first and second shell members. In performing the above steps, a plurality of the first shell members face each other in a longitudinal direction; The flange portion is joined by displacing a longitudinally facing portion of the second shell member. Construction method of wire protection tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15870098A JPH11355948A (en) | 1998-06-08 | 1998-06-08 | Electric wire protective tube and construction thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15870098A JPH11355948A (en) | 1998-06-08 | 1998-06-08 | Electric wire protective tube and construction thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH11355948A true JPH11355948A (en) | 1999-12-24 |
Family
ID=15677459
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15870098A Withdrawn JPH11355948A (en) | 1998-06-08 | 1998-06-08 | Electric wire protective tube and construction thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH11355948A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102801127A (en) * | 2012-09-10 | 2012-11-28 | 国家电网公司 | Device for safely erecting high-voltage power transmission and transformation line |
| CN106654989A (en) * | 2016-11-15 | 2017-05-10 | 国网山东省电力公司济南市历城区供电公司 | Auxiliary tool for setting artificial pulling rack of bare conductor |
| JP2018098129A (en) * | 2016-12-16 | 2018-06-21 | 住友電装株式会社 | Wire harness |
-
1998
- 1998-06-08 JP JP15870098A patent/JPH11355948A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102801127A (en) * | 2012-09-10 | 2012-11-28 | 国家电网公司 | Device for safely erecting high-voltage power transmission and transformation line |
| CN106654989A (en) * | 2016-11-15 | 2017-05-10 | 国网山东省电力公司济南市历城区供电公司 | Auxiliary tool for setting artificial pulling rack of bare conductor |
| JP2018098129A (en) * | 2016-12-16 | 2018-06-21 | 住友電装株式会社 | Wire harness |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 20050906 |