Abstract Wellington’s waterfront is in demand for new developments due to its proximity to the central business district, infrastructure, and harbour. This area can be impacted on by several hazards like earthquake shaking, liquefaction and lateral spread, see level rise and tsunami (tsunami not considered…
Abstract Soil nailing is a common type of construction for retaining walls. For retaining wall structures with “passive” nails, mobilisation of the nails is required in order to retain the ground. An approximately 400 m long vertical soil nail retaining wall of up to 7.5…
Abstract Building control authorities use producer statements throughout the building consent and certification process. When it comes to geotechnical matters, acceptance of a producer statement may not be a reliable indication that the works comply with the building code. There is often a lack of…
Abstract In the study of geotechnical hazards, such as soil liquefaction and landslide, the analysis of soil movements or soil particle movements is always one of the major preoccupations. An efficient soil movement sensing technique requires the tracking of different parts of a soil mass…
Abstract Soakage to ground is often used as a method of managing stormwater runoff generated by development. The New Zealand Building Code compliance document E1 is the only national guideline that provides methods for determining the soil soakage rate and the size of the related…
Abstract Tunnel boring machine (TBM) penetration tests entail incrementally increasing TBM thrust from full stop to maximum speed and recording the penetration rate either at set thrust levels or at set times. TBM penetration test data can be analysed by plotting the penetration rate (distance/revolution)…
Abstract A three-dimensional finite element model (3D FEM) has been developed in OpenSees to investigate the seismic response of inclined piles in liquefiable sand. The spring interface method is compared with the no interface approach in which pile and soil are bonded directly together to…
Abstract To facilitate the development of residential area a major upgrade of the storm water management system was required using open channels and flow attenuation ponds. The area is underlain by soft alluvial soils comprising organic silts, clays and peat. The high groundwater level and…
Abstract The four-lane, 21.8 kilometre long, Hamilton Section of the Waikato Expressway is the largest roading project undertaken in this region’s history and one of the larger projects currently being undertaken in New Zealand. Many of the seventeen expressway bridges in the Hamilton Section are…
Abstract Vertical and horizontal ground anchors are used frequently in Wellington. This study presents summaries of the results of tension tests of ground anchors across 33 sites in Wellington. The study includes ground anchors in soil and in rock, and both sacrificial and production anchor…