When putting in up to 1 ton poles (about 8 mtr long) for Trolley bus overhead wires (so a lot of lateral load) we had a fairly good process, that also looked to easy replacement down the road... Dig a big hole (2m deep, 1.5m wide). Weld 2 old 44gal drums into a tube. Fit the tube in the hole just below flush with the surface. Fill the 1t few inches of the tube with a quick set concrete. Fill the outside of the tube with concrete to about 4" below the surface. Leave that cooking for the day. Next day, throw a few inches of sand in the bottom of the tube. Insert desired pole. Throw in about 3-4 bags of quick set cement mix and wet/stir.. making a concrete washer round the pole above the sand. Fill/compress damp sand mix to about 1ft from the surface (Sorry, I was brought up when NZ changed from Imperial to Metric so u get both)... Throw in another 4 or so bags of concrete mix to the top of the tube... Result... A pole in a big concrete foundation held top and bottom by a washer of concrete making lateral movement near impossible... Come years later when replacing the pole, break the surface washer of concrete... Vacuum out the sand. Break the lower washer (usually just a decent few strikes with a decent weight breaker pole... Lift out the pole. Check out Crawford Road, Kilbirnie, Wellington for the result (The trolley bus system was removed in a "Burn the bridges" move by the previous bus company removing a 100% electric, world class trolley system, and preventing the next company from taking advantage of the upgraded poles etc only completed months before they trashed the system... and don't search how bad the bus system is in Wellington now...)
When putting in up to 1 ton poles (about 8 mtr long) for Trolley bus overhead wires (so a lot of lateral load) we had a fairly good process, that also looked to easy replacement down the road...
Dig a big hole (2m deep, 1.5m wide).
Weld 2 old 44gal drums into a tube.
Fit the tube in the hole just below flush with the surface.
Fill the 1t few inches of the tube with a quick set concrete.
Fill the outside of the tube with concrete to about 4" below the surface.
Leave that cooking for the day.
Next day, throw a few inches of sand in the bottom of the tube.
Insert desired pole.
Throw in about 3-4 bags of quick set cement mix and wet/stir.. making a concrete washer round the pole above the sand.
Fill/compress damp sand mix to about 1ft from the surface (Sorry, I was brought up when NZ changed from Imperial to Metric so u get both)...
Throw in another 4 or so bags of concrete mix to the top of the tube...
Result... A pole in a big concrete foundation held top and bottom by a washer of concrete making lateral movement near impossible...
Come years later when replacing the pole, break the surface washer of concrete...
Vacuum out the sand.
Break the lower washer (usually just a decent few strikes with a decent weight breaker pole...
Lift out the pole.
Check out Crawford Road, Kilbirnie, Wellington for the result (The trolley bus system was removed in a "Burn the bridges" move by the previous bus company removing a 100% electric, world class trolley system, and preventing the next company from taking advantage of the upgraded poles etc only completed months before they trashed the system... and don't search how bad the bus system is in Wellington now...)
Cannot imagine working non union making half the pay I make now for the same work. Friends don’t let friends work for pike