| 摘要 |
The pipes incorporate a pipe body of concrete (5), particularly a steel concrete pipe body with an outer and an inner surface (12). The inner surface of the concrete pipe body is clad with a metal pipe internal liner (13), particularly made of steel, with two connecting ends (13a,13b). Two adjacent advance feed pipes (2,4) are connected in a pressure-tight manner, to the connecting ends of the metal pipe internal liner. This connection is by means of a seal insert which overlaps the connecting ends. |
