When planning any new development on or near slopes, it is essential to consider the potential for landslides, both past and future. The initial stage of any landslide investigation involves recognizing and identifying the type of landslide. This step is crucial as it determines the most suitable surface and subsurface investigation techniques to be applied.
Unit 2 of the Slope Stability Guidance series builds upon the foundation laid in Unit 1, particularly Parts 3 and 4, by offering a more detailed discussion on the techniques and methods used to identify the type of landslide present. It begins by identifying the basic geological and geomorphological features that are used to recognize landslides, along with specific landforms that help differentiate between various types of landslide activity. This unit also presents an overview of the commonly available resources, techniques, and methods that should be considered to aid in the recognition, identification, and investigation of landslides.
Further, Unit 2 aims to provide a summary of the advantages and disadvantages of different techniques, aiding in their interpretation and understanding. This information is designed to support the other units in the series, such as the slope stability analysis of soil and rock slopes discussed in Unit 3. By offering a detailed examination of landslide recognition and investigation methods, Unit 2 enhances the overall understanding and approach to managing landslide risks in slope development projects.
Comments on the draft of Unit 2 should be addressed to the NZGS secretary (secretary@nzgs.org) and should be forwarded no later than Friday 18 April 2025. PDF Markups are preferred where this is possible.
Thank you to the authorship team of Eleni Gkeli, Tom Revell, Christoph Kraus and Nick Peters!