Claims & Expert Witness

David has provided advice to contractors, consultants and clients over many years in the anticipated and actual performance of the ground and groundwater, encompassing geological units from hard rock, weak rock, and through to soft soils.

M25 Earthworks, SE England

Advice to various contractors on conditions for excavation and reuse of materials, including chalk

Earthworks, East Anglia

Advice to various contractors on performance of various materials in road construction

Plymouth Car Park, Devon

Assessment of and advice on unexpected geological conditions

Pipejacks, Southern UK

Comparison of as found ground and groundwater conditions with predictions and assessment of tunnelling methods

Halifax MSSS, Yorkshire

Geological advice to project team throughout investigations, construction and claims over a period of 10 years on major new tunnelled storm and sewerage scheme

Jubilee Line Extension, London

Assessment of and design of solutions to deal with unexpected ground water conditions

St Helier Storm Water scheme, Jersey

Expert Reviewer to Claims panels on horizontal drilling and geological aspects of hard rock tunnelling

Brighton Storm Water scheme, Sussex

Geological aspects of tunnelling claims

Eton and Windsor flood relief channel, Berkshire

Groundwater aspects of temporary works for bridge slide

Hastings Storm Water scheme, Sussex

Ground conditions aspects of tender advice for tunnelling project

Carsington Aqueduct, Derbyshire

Geological advice throughout construction of 10km tunnel in Millstone Grit

Carsington Dam, Derbyshire

Post failure investigations and data recording

Heathrow Express, Heathrow Airport, Middlesex

Post collapse rebuild investigations
Forensic investigations during shaft sinking

© David Norbury Limited