Landslide at Broumov Bylnice railway, monitoring drills

Object of this assignment was realization 20 monitoring holes, 11 of all was the core holes, to the 25 m depth, 2 of themn was cased to hydrgeological holes with PVC casing DN 110 mm and annular space filling by sorted gravel of 4-8 mm grade. The rest 9 of holes has been used as deviation logging holes for shifting of layers measure.nt.

08/2017 – 10/2017