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What investigations are needed for subsidence?

April 26, 2017investigations needed subsidence

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What investigations are needed for subsidence?

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Generally, it is necessary to dig trial pits so as to establish the foundation and subsoil characteristics. Boreholes for deeper soil samples may also need to be formed. Soil and root samples are then tested in the laboratory. Other tests include checking drains for leaks, which may require a CCTV survey. Visible cracks need to be measured and monitored for changes. Establishing a history of the site/building can also be very useful.