Since 2013, DO’s involvement in this multidisciplinary project has been an evolving journey. Originating from our client’s aspiration to subdivide a hillside property in Little Akaloa, it has been dynamic.
As part of our geotechnical assessment of the site’s suitability for subdivision, Section 106 of the Resource Management Act 1991 required us to consider the natural hazards present on the site. Using historic aerial imagery from our desk study and our experience as being part of the Port Hills Geotechnical Group, once on site, looking upslope, we immediately recognised the rockfall hazard posed by the boulder field above the property. Any future development of the land would require a rockfall prevention system to be constructed above the future subdivision.
In 2021, our focus shifted to the design and exploration of a rock catch fence working with Maccaferri and adopting their proprietary solution. We tackled challenges during anchor installation encountering a greater thickness of loess and its squeezing at the rock-loess interface that prompted adaptive measures, leading to a change in anchor choice to Titan anchors.
With the fence established, the subdivision beneath is now primed for commencement. DO’s commitment remains unwavering, actively participating in the civil construction phase of the subdivision.
Since 2013, DO’s involvement in this multidisciplinary project has been an evolving journey. Originating from our client’s aspiration to subdivide a hillside property in Little Akaloa, it has been dynamic.
As part of our geotechnical assessment of the site’s suitability for subdivision, Section 106 of the Resource Management Act 1991 required us to consider the natural hazards present on the site. Using historic aerial imagery from our desk study and our experience as being part of the Port Hills Geotechnical Group, once on site, looking upslope, we immediately recognised the rockfall hazard posed by the boulder field above the property. Any future development of the land would require a rockfall prevention system to be constructed above the future subdivision.
In 2021, our focus shifted to the design and exploration of a rock catch fence working with Maccaferri and adopting their proprietary solution. We tackled challenges during anchor installation encountering a greater thickness of loess and its squeezing at the rock-loess interface that prompted adaptive measures, leading to a change in anchor choice to Titan anchors.
With the fence established, the subdivision beneath is now primed for commencement. DO’s commitment remains unwavering, actively participating in the civil construction phase of the subdivision.
