公开(公告)号：EP1309054A1

公开(公告)日：2003-05-07

申请号：EP01954478.2

申请日：2001-08-07

申请人： Ashimori Industry Co., Ltd. ,  SANKI ENGINEERING CO. LTD. ,  Seto, Ichiro

发明人： SETO, Ichiro ,  TSUCHIYA, Fumiaki ,  YAGI, Isaburo ,  AZUMA, Katsuhiko ,  KISHIBE, Nobuyasu ,  ASO, Koji ,  UEDA, Yasuhiro

IPC分类号： H02G1/06 ,  H02G9/00 ,  G02B6/00

CPC分类号： H02G1/06 ,  G02B6/502 ,  G02B6/508 ,  H02G1/08 ,  H02G9/06

摘要： A laying method for laying communication cables (16) is provided which allows to lay optical fiber cables (20) in an underground pipeline such as a sewage pipe neither placing direct tension nor allowing slack on them, and for a main pipe in which a plurality of optical fiber cables (20) are to be laid, the method also allows to lay optical fiber cables (20) in the upper space of inside the pipeline and to obviate the need of an expensive robot for the laying operation. In the proposed laying method, a high-strength low-elongation tension member is disposed to be slidable in the lengthwise direction along each optical fiber cable (20, 21, 22), and the tension members (25, 26, 27) are drawn into the underground pipeline (1) to tension the trunk tension member (25) thereby stretching the trunk tension member (25) substantially straight in the underground pipeline (1), and thus the optical fiber cables (20, 21, 22) are laid in the upper space of inside the underground pipeline (1). Also the branch tension member (26, 27) is tensioned in the branch pipe (4, 5) to lay the optical fiber cables (21, 22) in the branch pipe without allowing slack.

摘要翻译： 提供铺设通信电缆（16）的铺设方法，其可以将光纤电缆（20）放置在诸如污水管的地下管线中，既不施加直接张力也不允许松弛，并且对于主管，其中多个 要铺设光纤电缆（20），该方法还允许将光纤电缆（20）放置在管道内部的上部空间中，并且不需要用于铺设操作的昂贵的机器人。 在所提出的铺设方法中，高强度低伸长张力构件设置成沿着每根光纤缆线（20,21,22）在长度方向上滑动，并且拉伸构件（25,26,27）被拉伸 进入地下管线（1）以张紧躯干张力构件（25），从而在地下管线（1）中基本上直线地拉伸主干张紧构件（25），从而铺设光纤电缆（20,21,22） 在地下管线（1）内的上部空间。 此外，分支张紧构件（26,27）在分支管（4,5）中被张紧，以将光纤电缆（21,22）布置在分支管中，而不会松弛。