Here’s a selection of Geotechnical Disputes that Phil Wilson has provided expert witness services for:

National Audit Office (NAO)/Public Accounts Committee (PAC)

National Audit Office (NAO)/Public Accounts Committee (PAC)

Provided briefing and expert witness reports for cross examination by NAO/PAC into Geotechnical cost increases on Highway construction costs, which comprised the biggest contribution to cost overrun.

Thaumasite

Thaumasite

Expert witness report and Ministerial briefing for Parliamentary Questions (PQ) into concrete attack on concrete bridge foundations by Thaumasite, a rare phenomena, which required revision to BRE National Guidance on sulphates.

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Thaumasite

Thaumasite

Invited by ICE to join expert committee to reduce disputes due to unforeseen ground conditions.

CIRIA Transport Earthworks

CIRIA Transport Earthworks

Invited by CIRIA to advise on R&D program to produce guidance to reduce geotechnical disputes on Transport construction projects (Road & Rail).

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Highways England

Highways England

Head of Geotechnics, responsible for resolving all geotechnical disputes on Highway construction contracts as nominated expert advising Ministers and Chief Highway Engineer.

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MCHW/DMRB

MCHW/DMRB

Responsible for revising 500 (Drainage) and 600 (Earthwork) series to reduce geotechnical disputes in response to resolution of disputes based on feedback from contracts.

Resolution of disputes on behalf of HM Govt on Public Sector contracts for piling, foundations and earthworks

Property Services Agency

Resolution of disputes on behalf of HM Govt on Public Sector contracts for piling, foundations and earthworks.

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ADNOC Weak Carbonate Rocks

ADNOC Weak Carbonate Rocks

Retained to produce Expert Report on behaviour of piles in weak carbonate rocks that had previously caused disputes over relative merits of bored versus driven piles in these unusual rock types.
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Landfill EA Guide

Landfill EA Guide

Invited to join expert committee by Environment Agency to provide expert guidance on landfill liner materials to avoid further disputes on specification of liner materials.
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