Environmental & Structural Monitoring Surveys

In today’s environment many structural failures occur. We carry out precise monitoring surveys to determine up to sub millimetre movement of dams, listed and historic buildings and monuments, bridges, tunnels and any other structures which maybe subject to deformation.

We have carried out high precision monitoring surveys at various sites throughout the UK and locally such as Amble Quay wall in Northumberland, where wall failure occured due to river flooding. At Durham Cathedral we have monitored any possible long term movement and we have a term contract to carry out monitoring of dam structures such as Kielder Dam in Northumberland, the largest man made water body in Europe. To comply with legislation all dam structures need to be monitored on a regular basis.

Over the years we have carried out detailed surveys to position the metro system tunnels in Newcastle, to allow the client to determine pile positions on new build projects. Monitoring of the tunnel is then carried out during construction to determine any possible movements and post construction changes.

Workflow

Traditionally structural monitoring would be carried out with a total station and a number of targets placed at key locations. Using 3d laser scanning we can now provide deformation monitoring over an entire structure. A building can be scanned as part of the construction process at key intervals and the data overlaid to check tolerances. The traditional survey would only show movement at the targets while a laser scan shows movement over the entire structure.

Each scan can be colour coded to create a visual deviation chart.