clearing at Tic Hill was all manual labour with little mechanical
advantage used apart from the odd 4 wheel drive to pull a tree out of
All the undergrowth had to be cleared by hand along with a couple of medium size dead trees. The real hard work was to come later when rock and gravel had to be jack hammered out for the large concrete foundations of the wind generator and antenna tower.
attempts were made to dig out the rock and gravel for the two tower
foundations but only with limited success. The rock proved just too
difficult to remove without some sort of mechanical advantage.
A electric jack hammer was hired for several weekends and it ran almost non stop hammering away at the rock.
|Trevor, Sue and Bill working away on the
rock before the jack hammer was hired.
|The electric jack hammer that did most of
the rock breaking over several weekends.
This is the wind generator foundations with the main antenna tower in the background ready for the concrete.
|Owen VK6OW on jack hammer with Phil VK6AD
ready to remove broken up rock.
|Will VK6UU doing a stint on the jack hammer
while listening to the WIA news on a Sunday morning. After an hour or
so your hands had a numb feeling and someone else took over.
|The base of the main antenna tower
pre-assembled ready to tip over into the concrete, once the walls of
the dug out rock had been lined with corrugated iron form work.
VK6ZCK bolting together the bottom section of the main tower before it
was tilted into the foundations.
photograph shows both tower foundations ready for the concrete pour.
Note the corrugated iron form work. The green tower on the left is the
wind generator tower with the main tower just out of shot to the right.
The big day arrived to pour the concrete into both tower foundations. The day started fine but towards the end of the day just as the final pours were taking place a large rain front came in and we all got very wet.
Note Trevor using a concrete vibrator. This is essential to make sure the concrete moves into all areas and is compacted. Below the concrete stainless steel earth rods were driven into the rock-gravel and then attached to the tower frame.
The concrete was mixed in the quarry part the way down the hill and transported up to the site.
Adrian and Sue looking at the finished concrete pour of the main tower. The concrete had to be covered with plastic to reduce damage to the concrete from the heavy rain.