U of T summer office hours for the Student Services Office now 10 a.m. to 4:30 p.m. ET for July and August.
Deadline to register has been extended to August 6th
Sustainable Buildings Canada is holding its Better Buildings Boot Camp again this year, August 23-27. This is a free week of instruction and engagement on sustainable building design for graduate students. This year the focus is deep building retrofits and it is being extended from the four Toronto universities (U of T, York, Ryerson and OCADU) to include grad students from Carleton, Seneca and George Brown. Students work in highly interdisciplinary teams to explore all aspects of sustainable building design, and get to witness a professional “Savings by Design” workshop on the second last day of the program, followed by an opportunity to present their own recommendations regarding the case study building. This year the case study building is one of the buildings in the U of T Health Sciences block, probably the Health Sciences Building (the home of Dalla Lana). Here is the link to the boot camp webpage for the description, program highlights and application: https://sbcanada.org/better-buildings-boot-camp
Understanding material stocks in roads at the city and multinational scale
Bradley Kloostra
Supervisor: Prof. Shoshanna Saxe
Wednesday, August 11 at 1 p.m. on Zoom
https://utoronto.zoom.us/j/84667534941
Passcode: SPM
“Evaluating the Energy Use Implications of Battery Electric Vehicles Under a Diverse and Changing Climate”
Daniel Henrique
Supervisor: Prof. Posen
Wednesday August 11 at 1:30 p.m. via Zoom
https://utoronto.zoom.us/j/84667534941
Passcode: SPM
Evaluating the Energy Use Implications of Battery Electric Vehicles Under a Diverse and Changing Climate (MASc)
Daniel Henrique
Supervisor: Prof. D. Posen
Wednesday, August 11 @ 1:30 p.m. ET
Join via Zoom https://utoronto.zoom.us/j/84667534941
Meeting ID: 846 6753 4941. Passcode: SPM
Seminar by Dr. Qi Zhao and Dr. Tianyang Guo from Hong Kong Polytechnic University
Register here: https://www.eventbrite.ca/e/arma-utoronto-student-chapter-online-talk-dr-qi-zhao-dr-tianyang-guo-tickets-165142296053?ref=estw
About this event
Title: Influence of proppant on the shear behavior of rough rock joints
Short Bio: Dr. Qi Zhao
Dr. Qi Zhao obtained his Ph.D. degree at the University of Toronto and then worked as a postdoctoral researcher at the University of Toronto and UC Berkeley. He joined the Hong Kong Polytechnic University in June 2020 as an assistant professor at the Department of Civil and Environmental Engineering. His research interests cover several aspects across rock mechanics and geophysics, including in situ rock physics experiments under X-ray micro-CT, laboratory earthquakes, and rock joint surface roughness and shear behavior.
Short Abstract
Shear stimulation aided by proppant emplacement has been proven to be a useful approach to improve the hydraulic permeability of fractured hydrocarbon and geothermal reservoirs. The shear behavior of rock joints plays a dominant role in the effectiveness and safety of shear stimulations. In this presentation, I will present our recent work on shear behavior of propped rock joints under different normal stress and proppant conditions. Our results show that proppant lower and flatten the failure envelope, making the joints more susceptible to shear failure. Proppant also significantly alter the shear stress-displacement curves and reduce the shear dilation. Our study suggests that the shear behavior of a propped joint is controlled by a combined effect of proppant conditions, normal stress, and surface roughness. Understanding the interplay of these factors is the key to improve the efficiency of geo-energy extraction and prevent induced seismicity.
Title: Understanding the microcracking behavior of granite from acoustic emission and microscopic observation
Short Bio: Dr. Tianyang Guo
Dr. Tianyang Guo earned his Ph.D. degree in the field of rock mechanics at the University of Hong Kong in 2020 with Dr. Louis Wong. He has been doing postdoctoral research with Dr. Qi Zhao at the Hong Kong Polytechnic University since 2021. His research interests are acoustic emission data mining, microstructural analysis, microcracking mechanisms of granite.
Short Abstract
Rock cracks at various scales (e.g., crystal planes, microcracks, cleavages, fissures, joints, beddings, and faults) control a number of Earth’s dynamic processes as well as the efficiency and safety of geotechnical engineering practices. A thorough study of the microcracking behavior of rocks leads to a better understanding and prediction of the associated macroscopic cracking process. Although the characteristics of the fracture process zones (FPZs) caused by microcracking in granite under static mode I loading have been extensively investigated experimentally, the microcracking mechanisms of granites with different mineralogy and textural property are still not clearly understood and merit further study. To advance the understanding of the microcracking mechanisms, this study aims to experimentally study the effects of the mineralogy and textural property of granites on their microcracking behavior. Based on the semi-circular bending test, the microcracking mechanisms of Hong Kong granites are investigated using acoustic emission and microscopic observation techniques. Based on the results, an extended conceptual model which accounts for the effects of pre-existing microcracks is proposed to better describe the FPZ evolution prior to unstable crack propagation in crystalline rocks.
Sustainable Buildings Canada is holding its Better Buildings Boot Camp again this year, August 23-27. This is a free week of instruction and engagement on sustainable building design for graduate students. This year the focus is deep building retrofits and it is being extended from the four Toronto universities (U of T, York, Ryerson and OCADU) to include grad students from Carleton, Seneca and George Brown. Students work in highly interdisciplinary teams to explore all aspects of sustainable building design, and get to witness a professional “Savings by Design” workshop on the second last day of the program, followed by an opportunity to present their own recommendations regarding the case study building. This year the case study building is one of the buildings in the U of T Health Sciences block, probably the Health Sciences Building (the home of Dalla Lana). Here is the link to the boot camp webpage for the description, program highlights and application: https://sbcanada.org/better-buildings-boot-camp
Deadline to register has been extended to August 6th
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Labour Day – UNIVERSITY CLOSED
