On moderate to steeply sloping sites there is a risk of the land “slipping” down the hill. This can be shallow movement of surface soils or a deeper seated landslip. Landslips can cause serious damage to structures either on or adjacent to the landslip. Mass movement of this type of soil can be difficult and expensive to stop.
The first stage of any investigation is to establish the reason for the landslip. This normally includes topographical surveys, ground investigations, ground monitoring and monitoring the depth of ground movement using inclinometers. Once the position of the slip and the reason for the movement is established remediation schemes can be designed. This could include lowering the ground water level with drainage, re-profiling the ground or improving the resistance along the sip surface with soil nails.