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Manifestation and evaluation of soil liquefaction, related ground deformation, and lateral spreading. Effects on shallow foundations, analysis and design of piles, effects on buried pipe networks. Advanced liquefaction analysis. Seismic assessment of geotechnical structures within the performance-based framework.
The course focuses on soil liquefaction and its engineering evaluation. Key factors influencing stress-strain behaviour of soils are first discuss to understand soil behaviour during earthquakes and explain key characteristics of soil liquefaction and associated phenomena. Methods for engineering evaluation of liquefaction are discussed in great detail with a particular emphasis on how key factors are considered in the assessment. Effects of liquefaction on shallow foundations, deep foundations, bridges, pipe networks and reclaimed land are explored from and engineering evaluation perspective with a particular focus on seismic assessment and design. All topics are discussed using observations from well-documented case histories in recent earthquakes (2010-2011 Christchurch and 2016 Kaikoura earthquakes, in particular), benchmark laboratory studies, and field-testing data, with frequent reference to the updated NZ Guidelines for liquefaction assessment (published in 2021).
(a) Discuss and explain mechanisms of soil liquefaction and associated phenomena(b) Describe soil behaviour during earthquakes and site parameters required for liquefaction assessment(c) Examine key factors affecting liquefaction resistance and mitigation strategies(d) Interpret and apply semi-empirical procedures for evaluation of liquefaction triggering and for estimating liquefaction-induced settlements(e) Classify lateral spreads; estimate lateral spreading displacements and associated loads on structures.(f) Interpret performance of shallow and deep foundations in liquefying soils(g) Analyse effects of liquefaction on land and engineering structures using simplified (state-of-the-practice) and advanced (state-of-the-art) assessment procedures.(h) Discuss and provide means how to deal with challenges in the liquefaction assessment
Subject to approval of the Head of Department or the Programme Director.
ENCI620
Students must attend one activity from each section.
This is a lecture and independent-study course. The lectures will be delivered in a block mode.
Misko Cubrinovski
Two Assignments (50 % each)The assessment for this paper will comprise two assignments, one after each block of lectures. Each assignment will address practical engineering problems; detailed feedback will be provided on the submissions.
Recommended ReadingsA large number of scientific articles will be provided by the course coordinator.Background information, some chapters of: Kramer, S.L. (1996). “Geotechnical Earthquake Engineering”. Prentice-Hall, pp. 653. Ishihara, K. (1996). “Soil Behaviour in Earthquake Geotechnics”. Oxford Press, pp. 350. Idriss I.M. and Boulanger R. (2008). Soil liquefaction during earthquakes. Earthquake Engineering Research Institute, MNO-12.
1. All assignments must be submitted by the due date. Late submissions will not be accepted. If a student is unable to complete and submit an assignment by the deadline due to personal circumstances beyond their control they should discuss this with the lecturer involved as soon as possible (preferably prior to the due date). 2. Lecture notes, assignments, and course information will be available and continuously updated on LEARN. 3. All communication with the class will be done through lectures, email, or via Learn
Domestic fee $1,197.00
International Postgraduate fees
* All fees are inclusive of NZ GST or any equivalent overseas tax, and do not include any programme level discount or additional course-related expenses.
This course will not be offered if fewer than 5 people apply to enrol.
For further information see Civil and Natural Resources Engineering .