| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To efficiently perform partial repair work in a specified range required with time during use, in a pipe line formed by connecting pipes of which diameter is enlarged in specified width dimension. <P>SOLUTION: When the pipe line formed by connecting a large number of unit pipes of which diameter is enlarged in specified width dimension is continuously repaired astride the plurality of the unit pipes, a pair of sealing rings are mounted to outer peripheral portions of the unit pipes to be repaired which are separated by a predetermined distance. In a unit pipe outer peripheral space between the pair of sealing rings, a plurality of repair sections are formed by alternately connecting stay members of appropriate length and support rib members of appropriate diameter. First, the pair of sealing rings in both end parts are welded and fixed to the outer periphery of the unit pipes, and then, arc doublers cut in half in each repair section are made hermetically cover the outer periphery of the unit pipes via the stay members and support rib members, leaving certain gaps. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
