Dr. Zongxian Zhang has been Professor of Mining Engineering at Oulu mining School, University of Oulu since 2017. He received his Bachelor Degree in mining engineering from Xi'an University of Architecture and Technology, China in 1982, his master Degree in mining engineering from University of Science and Technology Beijing (USTB), China in 1986, and his Doctoral Degree from Luleå University of Technology, Sweden in 2001. From 1982 to 1983 he worked as Assistant research engineer in Northwestern Institute of Mining and Metallurgical Technology, Baiying, China. Then he was Assistant Lecturer (1986-1988), Lecturer (1988-1992), Associate Professor (1992-1997) in University of Science and Technology Beijing (USTB), China. After received PhD degree, he worked as Senior Research Engineer (2001-2002) in Luleå University of Technology, Sweden. From 2002 to 2013 he worked as Senior Engineer in mining company LKAB, Sweden. In 2013 he left LKAB and joined the University Centre in Svalbard, Norway as Associate Professor (2013-2014) and then as Professor of Rock Mechanics (2014-2016).
- Rock blasting
- Rock fracture mechanics
- Mineral recovery
- Vibration reduction
- Deep mining
- Rock burst and seismicity
Effect of stemmiing on rock blasting
Project funded by K H Renlund Foundation from 2018 to 2019. The research results from experiments indicate that both stemming and constraint condition greatly infleunce rock fragmentation. Without stemming, the energy loss in blasting is at least 25% explosive energy according to the measurements. Two peer-reviewed journal papers have been published, and more will come.
An experimental investigation on the relation between the characteristic impedance of rock and the energy accumulated in pre-failure stage during compression
Project funded by K H Renlund Foundation from 2020 to 2021. The project is going on.
Muography and its applications to mining and rock engineering
This is a self-driving research due to great potential in the applications of muography. One of applications is to evaluate and classify rock masses by means of muography. There are many other applications in mining and underground constrauction.
Professional and community activities
- Co-chair of 3rd international conference on rock dynamics and applications in June 2018, Trondheim, Norway
- Chair of Oulu Mining Summit 2018
- Keynote speaker of 3rd Nordic Rock Mechanics Symposium-NRMS 2017
- Member of International Committee of EUROCK 2020
- Member of International Committee of Nordic Grouting Symposium 2019, Sept 2-3, 2019, Helsinki, Finland
- Research group leader, Mining Engineering and Mineral Processing
Energy dissipation in dynamic tensile fracture of rock
This Doctoral Thesis was completed by Yong Yu at University of Science and Technology Beijing in 1996. The thesis focused on experimental study of energy dissipation during rock fracture by using split Hopkinson tensile bar system and by micro-scale examination on fracture surfaces using scanning electronic microscope (SEM).
Shock compression and fractures in laboratory rock blasting
This Doctoral Thesis was completed by Liyuan Chi at University Centre in Svalbard and Norwegian University of Science and Technology in 2018. The thesis focused on experimental measurement on shock pressure and on rock fracture during blasting.
Visited China University of Mining Technology in Beijing, Shandong University of Science and Technology, Xi'an University of Architecture and Technology– 9.7.2019 to 18.7.2019
Presented the research on rock blasting, mining gtechnology and rock mechanics at Oulu Mining School and discussed the cooperation between Oulu Mining School and the Mining Departments in the Chiniese universities.