ABSTRACT In 2011, rockfalls made Sumner Road near Christchurch unsafe and the road was closed to all traffic. This 2.5 km-long Christchurch City Council operated road, an important alternative route to the Lyttelton Tunnel, sustained extensive damage due to rockfall and retaining wall failures during…
ABSTRACT South Dunedin is located on a small coastal plain that has formed over a drowned and subsequently infilled valley. Formerly a salt marsh formed behind sand dunes, South Dunedin has been progressively developed since 1840 and is now one of the most-densely populated…
ABSTRACT This paper compares the predicted and observed construction-induced settlement for a project in Hamilton, N.Z. The project involved the construction of four shafts and associated pipelines in high-permeability alluvial (Hinuera) soils in an area with a high water-table. The city is embarking on significant…
ABSTRACT Within an 18 month period the Tairāwhiti region was hit with 3 heavy rainfall events and 2 cyclones. This resulted in over 5,200 recorded road faults across its 2,238 km network. The extent of the damage at any site ranged from minor culvert blockages…
ABSTRACT Rock slopes in most mining areas are prone to instability, because of the rock mass conditions are strongly effected by both internal rock properties and external conditions. Therefore, instability of rock slope attracts a high level importance for researchers, especially in the conventional…
ABSTRACT The Cutter Soil Mixing (CSM) method was used for in-situ mixing of contaminated reclaim ground at Wynyard Point, in the waterfront area of Auckland, to facilitate the installation of a large diameter outfall pipeline. A soil/cement block was formed by the CSM working…
ABSTRACT The current SH1 alignment at Bulli Point follows the eastern margin of Lake Taupo and is situated directly above the lake at the toe of a sharp ridge. The site has a history of low speed crashes due to an ignimbrite bluff overhanging…
ABSTRACT At the heart of a resilient community is building on land with a low instability risk. With population growth driving development in Northland new buildings are intersecting the area’s complex and commonly unstable geology on a frequent basis. For Northland to be building a…
. ABSTRACT The Jeffreys water supply pump station comprises replacement of the earthquake-damaged 200m3 concrete suction tank with a new 500m3 tank. Ground conditions at the site predominately comprise interbedded alluvial silt and sand in the surficial 8.75m, underlain by dense sandy gravel. Surficial soils…
ABSTRACT The existing literature contains no shortage of attempts at defining ‘collapsible soils’, all largely focussed on outlining the often unique properties and conditions required for collapse settlement to take place. First recognised and studied by Jennings and Knight (1957), collapse settlement can, in…