Posted 11 March 2011 - 08:32 PM
first off health and safety blah blah blah certain ranges of vibrations over extended time periods is not good fr your health! yes even small ones O.H.S 3rd edition. should be on net some where. in order to suppress vibrations, installations should be deep and massive foundations laid below the foundations of the building separated from all structural components. so mount your hammer on a suitably sized and reinforced concrete foundation and anti vibration mat. mat must go between hammer and foundation and base so b loads of concrete boys the pit should be a aprox 8" larger than the foundation block. the walls and floor of the pit should be sufficiently thick and reinforced to be strong enough to cope with the dead weight plus live loads the base mat needs to be rated at the weight of block + hammer. well it's a very cut down version but I hope it helps.
you can also cast in hold down bolts. the block should be cast out of pit (and a tip cast in lifting hooks) as ropes are hard to get out under a block that weighs 700 kgs +
Hope helps