When a landslip affects the road, the attending Geotechnical Engineer or Engineering Geologist is expected to make a rapid visual assessment of likely geohazards during and after debris clearance. This enables decisions on the extent of road or lane closure, whether emergency engagement of specialist contractors would be required for immediate removal or stabilisation of residual hazards, and whether consultants should be engaged for further investigations and design of longer-term remedial works. This presentation will provide a brief overview of landslip visual assessments for the non-specialist. It outlines how the geotechnical assessor synthesises four areas of knowledge and field experience. Case studies of recent landslips will be used to illustrate various slip mechanisms and the identification of residual hazards. From observation of the slip mechanism and residual hazards, a site-specific approach can be developed to reduce residual risks to an acceptable level.
Implementation of digital techniques to optimise slope remediation design across 132 sites in South-east Queensland.
June 28, 2024
Throughout early 2022 across Southeast Queensland rainfall events caused significant damage to the region’s roads causing several landslips and rockfalls. The State Road authority identified
