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 Trial pitting is a suitable method of ground investigation for acquiring shallow geotechnical and geoenvironmental parameters. This method of investigation is used when the ground is able to stand temporarily unsupported. However the encounter of groundwater whilst excavating can cause sidewall collapse and prevent certain depths being reached. Manned entry must be avoided because the unsupported sides of a trial pit can collapse. If manned entry is required, temporary shoring must be implemented or the sides of the pit stepped or battered back to the angle of repose. A back-acting wheeled excavator is the most common machine utilised and can excavate to depths up to 4 metres. Subsequent trial pit logs are then supplied to the client.
TRIAL PITTING VIEW OUR IMAGES FOR TRIAL PITTING BELOW

‘Fantastic service. Microgeotechnical’s ability to complete tasks with absolute precision is consistently impressive. They are always willing to go above and beyond for the job in hand whilst providing excellent communication throughout.’

 

Catherine Riley / Senior Chartered Geo-Environmental Engineer / NPS Property Consultants Ltd