There are number of old bridges with piers founded on a pair of CI screw piles taken down deep (may be 15 to 20 metres). They are well over 60 years old. The bridges are due retrofitting or rebuilding. Is there any way of assessing their condition below stream bed in a non-destructive manner...
Sirs,
This question concerns use of tipplers or track hoppers with use of bottom discharge wagons for transport of iron ore by rail. Can any member who has used either or both indicate, from personal experience, give an idea of their performance in respect of the following;
Reliability;
Time...
