CGL’s engineers have been working hard through the lockdown, providing geotechnical analysis working remotely from home. With communication and project sharing software set up to link our engineers across continental Europe, the UK and Ireland, project delivery remains on target.

Our engineers are providing sophisticated ground movement analysis for multiple four-storey basements, with depths greater than 20m to 25m, some of which are directly adjacent to LUL tunnels. PLAXIS 3D finite element analyses software allows a comparison of forces in the tunnel structural lining to standard design methodologies and informs a construction sequence to minimise ground movements.