| 摘要 |
The pipeline (1) is supported at equispaced distances by bearings (2), which consists of prefabricated concrete half-shells (3,3') which enclose the pipeline. Between the support bearings, pref. spaced at between 5 and 10 metres are fitted assembling rings (4) consisting of two half-shells (5,5'), having the same cross-section as the support bearings. Both the rings and bearings have coaxial guide apertures for plastics ropes and/or plastics mats. At the surface of the ring are holes drilled to accommodate inserted plastics pipes (10,10') for cables. |
