Floods

Digging a land drain

Digging a dry well

We have been very fortunate with the weather this year. Lots of warm weather, dry weather, and even a mild autumn so far. However, there was a week at the end of July when it was very, very, wet. On the 25th, water started collecting around the Peerie Hoose, so S called our groundworks contractor who came and dug a dry well. This was a hole two metres wide on both sides and two metres deep, which was then filled with stones to give the water somewhere to drain. Sorted! Or so we thought…

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From trench to foundation

The nearly-complete foundations.

The nearly-complete foundations. (They don’t spread out around the dumper on the top-right, that is just the remains of the aggregate pile.)

Over the course of three days, the trenches were filled with Type 1 aggregate. Luckily the weather was much improved from the beginning of the week – both warmer and with a couple very sunny days. The aggregate is deposited in 150mm rises and then packed down with a ‘wacker’. There are two variants if this machine – one that looks like a lawnmower and another that looks like a pneumatic drill, both with plates on the bottom that vibrate up-and-down. Both types were used in our case, and resulted in a closely-packed foundation, the cross-section of which can be seen in the previous post about aggregate.

The result is about 700mm of packed aggregate with a solid and level surface. The latter is thanks to an electronic measuring stick they have which ensures the surface is truly level, not just following the surface of the surrounding land which falls away.

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Dig!

Wednesday (15th May) was the day the digging proper started. By the end of the day, the trenches for the main house foundations had all been dug out. We are using ‘rubble trench’ foundations which involves digging a trench along the lines of all the outside walls and interior cob walls. (Though the walls will be thick, the foundations are significantly wider.) The trench is then filled with aggregate which is packed down and a low stone wall built on top. The cob will be built directly on the stone wall. This type of foundation avoids the need for concrete or cement. It is quite something to see the layout of the house physically, see the actual ground it will sit on, and to be able to walk in the paths of the walls.

Susan going to inspect the trenches

Susan going to inspect the trenches

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