Stools, Stools and More Stools!

We have now reached the half way stage with the digging of holes for rodding stools. We have successfully dug 15 holes through all sorts of ground conditions, marking the half way point in the rodding run from the S&D box to the end of the shed crossover. This run will also incorporate a re-jigged ground frame for the turntable road.

One of KSE's moles!

The differing layers we have to dig through.
Some are far tougher than others!

However, these are only roughly dug, and the stools we have deposited now require squaring up, aligning exactly and levelling. The better and more accurately constructed the run is; the easier it will be to operate and look after.

Molehills/stools

A different view of the run so far

Since we have reached the half way stage, we will tackle the alignment of these as the next job. The molehills will therefore disappear, and things will look far tidier!

The water is a constant battle. Hopefully the levels
will recede enough to allow the fine tuning of the
stools and the infilling of the holes.

The rodding run, however, does not just deal in stools. We have larger structures to add in as well: benches. These allow the cranks which change the direction of movement, allow adjustment and compensate for thermal expansion and contraction, to be fastened down. A lot of work has gone on to calculate where these go exactly to ensure the rods have the same amount of "push" as "pull". This means that if the temperature increases, and the rodding expands, the overall positions do not try to change, so everything keeps working as it ought.

In position to make a stool deposit...

Please see below for a full diagram. This is the working drawing showing the route of the rods, the location of the cranks and benches, with the compensation being the primary driving force!


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