Ruddlesden geotechnical

Combined Percussive and Rotary Drilling

Ground conditions, particularly in the South West, often mean that a combination of percussive and rotary drilling techniques are required.

In situations where softer ground (e.g. clay/ sand) is interlayered with harder ground (bedrock), drilling rigs that are capable of utilising both percussive and rotary drilling techniques are used.

Case Study

Boreholes for Retaining Wall, North Devon

To aid the design of a large retaining wall at a former glove factory in North Devon, Ruddlesden geotechnical were commissioned to undertake a geotechnical investigation to provide information on the ground conditions.