| 摘要 |
A subterranean pipeline installation 50 beneath the ground surface 52 is 5 disclosed. The installation 50 includes a first body component 30 configured to form a water seal and a second body component 32 defining an access opening 18 providing access into a flow path 23 having a closure 20 removably mounted thereon. The closure 20 has a flow path defining formation 22 complementing the internal surface of the component 32 and to provide a 10 smooth flow path. The installation 50 includes an access shaft 54 around the access opening 18 and extending up to the ground surface 52 for providing access into the flow path 23. The access shaft 54 comprises a lower wall 24 projecting up from the component 32 and a pipe section 70 extending up to the ground surface 52. A handle 76 is mounted on the shaft and extends up the 15 shaft towards the ground surface 52. A top cap 74 is removably mounted on the pipe section 70. Fig 10 for publication iolTi IIf |
