This catch pit will not be built around like the first one, but will be encased in the platform (it is a bit further back than the other one) and will be accessible from the top.
In the background is Jim H, who was part of the second gang. He has a barrow full of concrete freshly made, and is going downhill, so that's no effort, is it?.
A few seconds later, Jim is well away down the four foot, while Paul and Dave P check the position of the first tower against the track gauges in the background.
|'Ere we go...|
Poor old Dave D at the top of the slope was shovelling ballast in the mixer like there was no tomorrow, and wondering where it was all going, and if there wasn't some sort of hole at the bottom of the wall where it was secretly all running out again.
So we decided to keep a record of what went in, and from time to time Dave came down to see what was happening with the fruits of his labour.
At the end of the day he had mixed up both remaining dumpy bags of ballast, about two tons worth. This made 20 wheelbarrows of mix - Lyndon is chalking up the last one here - and this resulted in the length of 15 blocks that was filled. We have another 33 on the current stretch of platform to go, say another two days' worth, as we ran out of ballast before the end of the day. We are now low on cement again, and the ballast has all gone - note to Central Purchasing!
|Paul and Dave's first tower - lovely, isn't it?|
The wall fitted perfectly, it even has a curve to it.
The darned thing was that the break was also not in the right place for whole blocks to be used. Dave D can be seen here trying out various options. Hmmmm...
With a trial row of blocks in place with a minimum bed of mortar, what was the level like?
Still too high !
Next week will no doubt produce the answer to this puzzle.
A fifth row still needs to be built all the way along the back, leaving a row at the front for the corbelling. We will build this row once the concrete is in all the holes.
This Friday for 4 weeks will see operating days, so our team at Hayles will only be able to work on Mondays. Paul is now off on holiday for two Mondays, but Jim G is back, after sailing down the river Severn on a narrow boat. See you again next Monday then.
Last but not least another little fossil puzzle for our readers. Dave P found this one in the area of the field on the other side of the fence to the site, so not in the clay but among the debris of Cotswold stone.
At first sight it looked like an old button, but on further inspection you can see a lot of fine grooves like umbrella spines radiating from the top. Would this be a sort of sea urchin, an Echinoid?