JPS5849083B2 - Cable installation method in tunnel - Google Patents
Cable installation method in tunnelInfo
- Publication number
- JPS5849083B2 JPS5849083B2 JP54132036A JP13203679A JPS5849083B2 JP S5849083 B2 JPS5849083 B2 JP S5849083B2 JP 54132036 A JP54132036 A JP 54132036A JP 13203679 A JP13203679 A JP 13203679A JP S5849083 B2 JPS5849083 B2 JP S5849083B2
- Authority
- JP
- Japan
- Prior art keywords
- cable
- drum
- roadway
- cables
- laying
- 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.)
- Expired
Links
- 238000000034 method Methods 0.000 title claims description 15
- 238000009434 installation Methods 0.000 title description 3
- 238000004804 winding Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
Landscapes
- Electric Cable Installation (AREA)
- Details Of Aerials (AREA)
Description
【発明の詳細な説明】
本発明は異なる位置に配された複数の観測点と基地局と
をつなぐ除道内にケーブルを布設する方法に関し、特に
各観測点と基地局の間を独立したしかも同一長さのケー
ブルで接続する場合の有効な布設方法である。[Detailed Description of the Invention] The present invention relates to a method of laying cables in a roadway connecting a plurality of observation points arranged at different locations and a base station, and in particular, a method of laying cables in a roadway connecting a plurality of observation points arranged at different positions and a base station. This is an effective installation method when connecting with long cables.
このようなシステムは、例えば電波天文分野においてみ
られ複数のアンテナ素イ群を所定の位置に配して、大型
のアンテナを構成し、宇宙電波の観測を行なう場合に、
各アンテナ素子での受信信号を観測基地に同一位相遅れ
となるように伝送する必要がある。Such a system is used, for example, in the field of radio astronomy, when a group of multiple antenna elements are arranged at predetermined positions to form a large antenna and used to observe space radio waves.
It is necessary to transmit the received signals at each antenna element to the observation station with the same phase delay.
そのかめに基地局と基地局から異なる距離に散在するア
ンテナ素子群との間を同一電気長の通信線（ケーブル）
で結ぶ必要があり、しかも、ケーブルはその電気長が温
ｉ変化により変わるのを防止するために一般に地下の除
道内に布設されることになる。In order to do this, communication lines (cables) of the same electrical length are used to connect the base station and antenna elements scattered at different distances from the base station.
Moreover, the cable is generally laid in an underground tunnel to prevent its electrical length from changing due to changes in temperature.
このような制約の下でケーブルを布設する方法として、
一定長さのケーブルを除道内で折返してケーブルの両端
末部が丁度それぞれアンテナ素了の存在する観測点と基
地局とに設定されるように布設する方法が考えられるが
、この場合には狭い除道内でケーブルに曲げを与えなけ
ればならず、非常に作業性の悪い工法となる。As a method of laying cables under such constraints,
One possible method is to fold a cable of a certain length inside the road and lay it so that both ends of the cable are set exactly at the observation point and the base station, respectively, where the antenna clear area exists, but in this case, the narrow The cable must be bent within the roadway, making it a very inefficient construction method.
本発明は上記のような特殊な環境下でケーブルを安定し
た状態で布設する方法に関する。The present invention relates to a method for laying a cable in a stable state under the above-mentioned special environment.
第１、２図は、本発明によるケーブルの布設方法を説明
するための概略図である。1 and 2 are schematic diagrams for explaining the cable installation method according to the present invention.
異なる位置にある複数の観測点６は基地局５と除道γに
て連結されており、各観測点６にケーブルの一端部が、
また他端部が基地局５内の信号受信装置に固定されてい
る。A plurality of observation points 6 at different locations are connected to the base station 5 by a path γ, and one end of the cable is connected to each observation point 6.
The other end is fixed to a signal receiving device within the base station 5.
基地局５と各観測点６との間の距離はそれぞれ異なるが
、この区間に布設されるケーブル１はすべて同一電気長
であり、剰余長のケーブル部分はドラム２に巻かれた状
態で各観測点６の近くに固定されている。Although the distance between the base station 5 and each observation point 6 is different, all the cables 1 laid in this section have the same electrical length, and the excess length of the cable is wrapped around the drum 2 for each observation point. It is fixed near point 6.
ケーブルの両端末には接栓３，４が取付けられており、
各観測点のアンテナ素子および基地局の信号受信装置（
図示せず）に接続される。Junctions 3 and 4 are attached to both ends of the cable,
Antenna elements at each observation point and signal receiving equipment at the base station (
(not shown).
このような状態にケーブルを布設する手順は以下のとお
りである。The procedure for laying cables in such a state is as follows.
ケーブル１は電気長を合わせて第３図に示したような、
いわゆる棚付ドラム２に巻かれた状態で各観測点６近く
の除道内に設置される。Cable 1 has the electrical length as shown in Figure 3.
It is installed in a roadway near each observation point 6 in a state where it is wound around a so-called drum with a shelf 2.
次に、その観測点６から基地局５までの区間に必要長だ
けケーブルの巻終日側（コネクタ３のついた端末）を繰
出して基地局５に固定した後、ケーブルの巻始口側（コ
ネクタ４のついた端末）をドラム２から引き出して観測
点６に固定し、ドラム２も固定する。Next, the winding end side (terminal with connector 3) of the cable is fed out for the required length in the section from observation point 6 to base station 5 and fixed to base station 5, and then the winding end side of the cable (terminal with connector 4) is pulled out from the drum 2 and fixed at the observation point 6, and the drum 2 is also fixed.
本発明による除道内へのケーブル布設方法の主な特長は
以下のとおりである。The main features of the method of laying cables in a roadway according to the present invention are as follows.
（１）ケーブルに不必要な曲げを与えずに延線布設でき
、かつケーブルの延線不要部分はドラムに巻いたまま外
力が加わらないので、極めて安定した高信頼性の伝送路
を形成できる。(1) Since the cable can be laid without unnecessary bending, and no external force is applied to the part of the cable that does not need to be stretched while being wound around the drum, an extremely stable and highly reliable transmission line can be formed.
（２） ドラムに巻いた状態のケーブル両端末に接栓
をつけ、そのまま布設可能であるので、現地での端末加
工が不要となり、経済性、信頼性が向上ずる。(2) Since it is possible to attach plugs to both ends of the cable wound around the drum and install it as is, there is no need to process the ends on site, improving economic efficiency and reliability.
（３）ケーブルの電気長を工場内で調整し、そのまま布
設可能であるので現地作業が不要となり経済性、信頼性
が向上する。(3) The electrical length of the cable can be adjusted in the factory and laid as is, eliminating the need for on-site work and improving economic efficiency and reliability.
特に同一長の複数本のケーブルを布設するのに適してい
る。It is particularly suitable for laying multiple cables of the same length.
第１図、第２図は本発明による除道内へのケーフル布設
方法説明図で、第１図は除道の縦断面図、第２図は除道
の横断面図を示し、第３図はドラムにケーブルを巻込ん
だ図を示す。
図中、１はケーブル、２はドラム、３，４は接栓、５は
基地局、６は観測点、１は除道を示す。Figures 1 and 2 are explanatory diagrams of the method of installing a cable in a roadway according to the present invention, in which Figure 1 is a longitudinal cross-sectional view of the roadway, Figure 2 is a cross-sectional view of the roadway, and Figure 3 is a cross-sectional view of the roadway. The figure shows the cable wound around the drum. In the figure, 1 is a cable, 2 is a drum, 3 and 4 are plugs, 5 is a base station, 6 is an observation point, and 1 is a roadway.
Claims (1)
のケーブルを布設する方法において、ドラムに巻かれた
ケーブルを除道内に設置し、該ドラムからケーブルの巻
終日側を引き出し一方の装置に接続固定し、つづいて上
記ドラムから該ケーブルの巻始口側を引き出し、他方の
装置に接続固定し、上記ケーブルの除道長より長い部分
はドラムに巻きつけた状態でドラム及びケーブルを設置
固定することを特徴とする除道内のケーブル布設方法。 ２ 複数本の同一長のケーブルをそれぞれドラムに巻き
つけ異なる位置に設置された観測装置の近くの除道内に
該ドラムをそれぞれ設置し、該ドラムから引出したケー
ブル巻終日側は１ケ所に集中設置された装置に接続する
と共にケーブル巻始口側は上記観測装置にそれぞれ接続
することを特徴とする特許請求の範囲第１項記載の障道
内のケーブル布設方法。[Claims] 1. In a method of laying a cable of a predetermined length longer than the length of the road in a roadway, a cable wound around a drum is installed in the roadway, and the end-of-day side of the cable is unrolled from the drum. Connect and fix the cable to one device, then pull out the start end of the cable from the drum, connect and fix it to the other device, and wrap the cable around the drum with the part longer than the path length. A method of laying cables in a roadway, characterized by installing and fixing the cables. 2. Wrap multiple cables of the same length around drums and install each drum in a roadway near the observation equipment installed at different locations, and the cables pulled out from the drums are concentrated in one location all day long. 2. The method for laying a cable in an obstacle road according to claim 1, wherein the cable winding start side is connected to the observation device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP54132036A JPS5849083B2 (en) | 1979-10-12 | 1979-10-12 | Cable installation method in tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP54132036A JPS5849083B2 (en) | 1979-10-12 | 1979-10-12 | Cable installation method in tunnel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5655775A JPS5655775A (en) | 1981-05-16 |
| JPS5849083B2 true JPS5849083B2 (en) | 1983-11-01 |
Family
ID=15071997
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP54132036A Expired JPS5849083B2 (en) | 1979-10-12 | 1979-10-12 | Cable installation method in tunnel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5849083B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63193193U (en) * | 1987-06-01 | 1988-12-13 |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112728258B (en) * | 2020-12-25 | 2023-02-03 | 北京华航无线电测量研究所 | Liquid inlet and outlet joint and communication method thereof |
-
1979
- 1979-10-12 JP JP54132036A patent/JPS5849083B2/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63193193U (en) * | 1987-06-01 | 1988-12-13 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5655775A (en) | 1981-05-16 |
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