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新西兰奥克兰大学Geotechnical Engineering招CSC博士
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具体研究方向如下，有兴趣的直接咨询 Dr Arezoo Rahimi，她是新入职的老师，除了CSC，可能还有1-2个faculty提供的PhD名额 Mechanism of Rainfall-Induced Slope Failure in New Zealand Landslides are a widespread and recurrent problem in New Zealand (Hawke and McConchie, 2009) which pose risks to the society. Since 1843, there have been at least 600 deaths from landslides in New Zealand (compared with 458 from earthquakes) and a lower estimate of the national annual cost associated with landslides is NZ $250–$300 M/year (Rosser et al., 2017). New Zealand Landslide Database contains 22575 records and rainfall may be the triggering factor of 90% of landslides (Rosser et al., 2017). Although the occurrence of 90% of landslides is associated with rainfall, the mechanism of rainfall-induced slope failure is not well presented in relation to geotechnical perspective. The knowledge of where, when, and why landslides occur needs an understanding of rainfall-induced slope failure mechanism considering New Zealand soil properties as well as its rainfall patterns. Rainfall-induced slope failure is one of the most important and difficult issues for landslides research (Lan et al., 2003). The purpose of this study is to investigate the possible controlling factors related to rainfall-induced slope failure in New Zealand, including the geology and topography of the area, soil types, soil properties, local climatic conditions (rainfall characteristics and evaporation) and water flow patterns within the slopes. The outcome of the research should provide an in-depth knowledge of the landslide’s occurrence in response to rainfall in New Zealand. The knowledge will provide a basis for proper adaptation of preventive measures. Use of Waste Polymer Fiber for Geotechnical Applications Urban development and population growth imposes a huge demand on land use. The required infrastructure for this rapid urbanization leads to developments of buildings, roads, railways, sewage systems, etc. on not only firm soil but also on week and soft soils. The industry thus needs to use ground improvement methods to enhance soil characteristics for prevention of possible catastrophic failures. The use of flat geosynthetics is a modern soil reinforcement method widely used in various geotechnical applications to enhance the strength of the soil. However, the improved strength is only in one direction and a plane of reduced shear strength is formed at its contact with the soil. The alternative to geosynthetics reinforcement is the use of fibers mixed with soil which may overcomes the limitations of geosynthetics. The purpose of this study is to use waste polymer fibers as soil reinforcement materials and investigate its effects on the soil properties. The possible applications of this composite soil are endless. In addition, it will promote the use of waste materials which otherwise end up in landfills or incinerators. Dr Arezoo Rahimi Short Biography: Arezoo is a Lecturer in Department of Civil and Environmental Engineering. She has obtained her MSc and PhD from Nanyang Technological University (NTU) in Singapore in geotechnical engineering under Professor Rahardjo’s supervision. https://profiles.auckland.ac.nz/arezoo-rahimi |
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