Foundation assembly for concrete mast

摘要

The foundation comes in the form of prism, block, cylinder or truncated pyramid or cone (4) whose central mast (1) socket (2) is cylindrical and has a bottom drainage hole (6). There is a circular slot (3) opening upwards alongside the socket where in turn runs right through the concrete, and the foundation block etc. is fitted out with top-mounted sling etc. eyelets (7). In service, the socket block etc. is lowered via eyelets into the pre-excavated pit. It is packed all round to take the mast before finally in-filling the slot to complete the mast erection.