The Screw Driving Sounding (SDS) method developed in Japan is a relatively new insitu testing technique to characterise soft shallow sites, typically those required for residential house construction. An SDS machine drills a rod into the ground in several loading steps while the rod is continuously rotated. Several parameters, such as torque, load and speed of penetration, are recorded at every rotation of the rod. The SDS method has been introduced in New Zealand, and the results of its application for characterising local sites are discussed in this study. A total of 164 SDS tests were conducted in Christchurch, Wellington and Auckland to validate/adjust the methodologies originally developed based on the Japanese practice. Most of the tests were conducted at sites where cone penetration tests (CPT), standard penetration tests (SPT) and borehole logs were available; the comparison of SDS results with existing information showed that the SDS method has great potential as an in-situ testing method for classifying the soils. By compiling the SDS data from 3 different cities and comparing them with the borehole logs, a soil classification chart was generated for identifying the soil type based on SDS parameters. Also, a correlation between fines content and SDS parameters was developed and a procedure for estimating angle of internal friction of sand using SDS parameters was investigated. Furthermore, a correlation was made between the tip resistance of the CPT and the SDS data for different percentages of fines content. The relationship between the SPT N value and a SDS parameter was also proposed. This thesis also presents a methodology for identifying the liquefiable layers of soil using SDS data. SDS tests were performed in both liquefied and non-liquefied areas in Christchurch to find a representative parameter and relationship for predicting the liquefaction potential of soil. Plots were drawn of the cyclic shear stress ratios (CSR) induced by the earthquakes and the corresponding energy of penetration during SDS tests. By identifying liquefied or unliquefied layers using three different popular CPT-based methods, boundary lines corresponding to the various probabilities of liquefaction happening were developed for different ranges of fines contents using logistic regression analysis, these could then be used for estimating the liquefaction potential of soil directly from the SDS data. Finally, the drilling process involved in screw driving sounding was simulated using Abaqus software. Analysis results proved that the model successfully captured the drilling process of the SDS machine in sand. In addition, a chart to predict peak friction angles of sandy sites based on measured SDS parameters for various vertical effective stresses was formulated. As a simple, fast and economical test, the SDS method can be a reliable alternative insitu test for soil and site characterisation, especially for residential house construction.
A number of field testing techniques, such as standard penetration test (SPT), cone penetration test (CPT), and Swedish weight sounding (SWS), are popularly used for in-situ characterisation. The screw driving sounding (SDS) method, which has been recently developed in Japan, is an improved version of the SWS technique and measures more parameters, including the required torque, load, speed of penetration and rod friction; these provide more robust way of characterising soil stratigraphy. It is a cost-efficient technique which uses a machine-driven and portable device, making it ideal for testing in small-scale and confined areas. Moreover, with a testing depth of up to 10-15m, it is suitable for liquefaction assessment. Thus, the SDS method has great potential as an in-situ testing method for geotechnical site characterisation, especially for residential house construction. In this paper, the results of SDS tests performed at a variety of sites in New Zealand are presented. The soil database was employed to develop a soil classification chart based on SDS-derived parameters. Moreover, using the data obtained following the 2010-2011 Christchurch Earthquake Se-quence, a methodology was established for liquefaction potential evaluation using SDS data. http://www.isc5.com.au/wp-content/uploads/2016/09/1345-2-ORENSE.pdf
A recorded conversation about the arts in Christchurch, facilitated by Rosalee Jenkin (UC CEISMIC) and featuring Sophie Davis (UC Masters student and co-director of North Projects), Lara Strongman (Senior Curator at Christchurch Art Gallery), Gaby Montejo (visual art practitioner and teacher) and Wongi Wilson (street artist and professional graffiti artist). The podcast is the first in a series of conversations hosted by UC CEISMIC about Christchurch, five years on from the February 22 earthquake.
An audio recording of a mayoral debate hosted by Generation Zero in partnership with 350 Christchurch. The event was titled Mayoral Debate: a climate-smart Christchurch. It was held on campus at the University of Canterbury on Thursday 22 September, 2016 and was moderated by Catarina Gutierrez of the Ministry of Awesome. The debate was structured as follows: Section 1: Candidates answered set questions sent prior to the event Section 2: Candidates answered set questions they have not seen before Interval Section 3: Candidates answered written questions from the audience (climate-related questions were submitted during the interval and a selection of these were given to the moderator). The audio recording was taken through the University's Echo system.
A video of a presentation by Jai Chung during the Staff and Patients Stream of the 2016 People in Disasters Conference. The presentation is titled, "A Systematic Review of Compassion Fatigue of Nurses During and After the Canterbury Earthquakes".The abstract for the presentation reads as follows: Limited research is currently available about compassion fatigue of health professionals during and after disasters in New Zealand. The purpose of this systematic literature review was to provide a comprehensive outline of existing research. National and international literature was compared and contrasted to determine the importance of recognising compassion fatigue during and after disasters. Health professionals responding to disasters have played an important role in saving lives. Especially, during and after the Canterbury earthquakes, many health professionals cared for the traumatized public of the region. When responding to and caring for many distressed people, health professionals - particularly nurses - may strongly empathise with people's pain, fear, and distress. Consequently, they can be affected both emotionally and physically. Nurses may experience intensive and extreme distress and trauma directly and indirectly. Physical exhaustion can arise quickly. Emotional exhaustion such as hopelessness and helplessness may lead to nurses losing the ability to nurture and care for people during disasters. This can lead to compassion fatigue. It is important to understand how health professionals, especially nurses, experience compassion fatigue in order to help them respond to disasters appropriately. International literature explains the importance of recognising compassion fatigue in nursing, and explores different coping mechanisms that assist nurses overcome or prevent this health problem. In contrast, New Zealand literature is limited to experiences of nurses' attitudes in responding to natural disasters. In light of this, this literature review will help to raise awareness about the importance of recognising and addressing symptoms of compassion fatigue in a profession such as nursing. Gaps within the research will also be identified along with recommendations for future research in this area, especially from a New Zealand perspective. Please note that due to a recording error the sound cuts out at 9 minutes.
