Sundby Naturhus · Build diary archive

Drilling

From the building diary. This entry records the project at the date above. Plans, prices and measurements are historical; any tour dates or booking instructions are no longer current.

English translation of the original Swedish diary entry. Swedish original below. Plans and observations belong to the time of writing.

We need to blast away some bedrock, so Upplands Bergentreprenad was here drilling yesterday, Friday. The blasting is scheduled for Tuesday. Although the rock is only about 30 cm too high, the holes go 1.5 metres deep; otherwise, the force would go straight upwards. In all, about 110 square metres need blasting.

image
Read the Swedish original — Borrning
image Vi behöver spränga bort lite berg så igår fredag var Upplands bergentreprenad på plats och borrade. På tisdag smäller det. Trots att det bara är runt tre decimeter för högt spränger man 1,5 meter djupt, annars går sprängkraften bara uppåt. Totalt ca 110 m2 som behöver sprängas.

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