Mitigation and Design Principles
Unit 4 of the Slope Stability Guidance provides guidance on effective strategies for mitigating slope instability by addressing both engineered and non-engineered solutions. It outlines risk-based approaches tailored to site-specific conditions and includes considerations for slope stability design, performance criteria, and the selection process for mitigation strategies.
Unit 4 of the series builds upon the foundation laid in Unit 1, particularly Part 10, by offering a more detailed discussion on the engineered techniques like stabilisation methods for soil and rock slopes, rockfall and debris flow management, as well as non-engineered measures such as bio-engineering and quick risk reduction approaches. Additionally, it highlights compliance with safety standards, integration of sustainability into design, and practical applications through case studies.
Comments on the draft of Unit 4 should be addressed to the NZGS secretary (secretary@nzgs.org) and should be forwarded no later than Friday 25 July 2025. PDF Markups are preferred where this is possible.
Thank you to the authorship team of Razel Ramilo, Tom Revell, Grant Murray, Mladen Sigurnjak and Willy Roberts!