Guangyao Si

Senior Lecturer

Dr Guangyao Si is a Senior Lecturer at the School of Minerals and Energy Resources Engineering. He was initially trained as a mining engineer from the top mining university in China, China University of Mining Technology. He graduated as the top student among nearly 280 mining peers in 2010. Due to his excellent academic performance, he was awarded three scholarships by Imperial College London to sponsor his PhD research under the supervision of Professor Sevket Durucan. Guangyao defended his thesis in 2015 with outstanding research outputs and then continued his work at Imperial College London as a Research Associate until the end of 2017. From December 2017, Guangyao moved from the UK to Australia to take a faculty position at UNSW. Having been studying and working for the mining industry at three different continents, Guangyao determines to devote himself to explore fundamental knowledge boundaries as well as develop industry-oriented research solutions.

    Professional Involvement:

      • Collaborated with a wide range of mining companies: Anglo American, Glencore, BMA, Centennial.
      • Peer-review expert for International Journal of Coal Geology, Fuel, International Journal of Rock Mechanics and Mining Science, Rock Mechanics and Rock Engineering, Journal of Natural Gas Science and Engineering, etc.
      • Scientific Editor, Journal of Rock Mechanics and Geotechnical Engineering
      • Member of the Australasian Institute of Mining and Metallurgy (AusIMM), and Society of Mining, Metallurgy and Exploration (SME).

      Research Interests:

      Guangyao's research expertise was forged through years of collaborations with prestigious research institutes and industry operators, which are constituted by international and multidisciplinary teams. Through these collaborations, Guangyao has been immersed in various fields such as Reservoir Engineering, Geophysics, Geostatistics, and Geomechanics. The blending of these areas grants him a unique perspective to investigate challenges arising from the modern mining industry. His fundamental research interest lies in developing safer, smarter, and more sustainable mining technologies, which includes:

      • Coal seam gas capturing and utilisation,
      • Goaf management and spontaneous combustion
      • Multiphysics coupled simulation,
      • Mining induced seismicity management,
      • Mining hazard prevention and mitigation,
      • Machine learning applications in mining

      We are constantly recruiting highly able, enthusiastic and well-motivated PhD students from subjects including Mining Engineering, Petroleum Engineering, Civil Engineering, and other related engineering subjects. Students with an outstanding background in math, physics and programming are strongly encouraged to apply. 

      We have several PhD scholarships available to be distributed in 2022/2023. Please contact me asap to discuss research topics.

       

      Journal articles
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      Wang C; Si G; Zhang C; Cao A; Canbulat I, 2021, 'A Statistical Method to Assess the Data Integrity and Reliability of Seismic Monitoring Systems in Underground Mines', Rock Mechanics and Rock Engineering, http://dx.doi.org/10.1007/s00603-021-02597-7
      2021
      Cui J; Si G, 2021, 'Equivalent anisotropic permeability of shale rocks: Effect of micro-fractures', Journal of Petroleum Science and Engineering, vol. 207, http://dx.doi.org/10.1016/j.petrol.2021.109085
      2021
      Wang C; Si G; Zhang C; Cao A; Canbulat I, 2021, 'Location error based seismic cluster analysis and its application to burst damage assessment in underground coal mines', International Journal of Rock Mechanics and Mining Sciences, vol. 143, http://dx.doi.org/10.1016/j.ijrmms.2021.104784
      2021
      Li Z; Liu D; Wang Y; Si G; Cai Y; Wang Y, 2021, 'Evaluation of multistage characteristics for coalbed methane desorption-diffusion and their geological controls: A case study of the northern Gujiao Block of Qinshui Basin, China', Journal of Petroleum Science and Engineering, vol. 204, http://dx.doi.org/10.1016/j.petrol.2021.108704
      2021
      Liu J; Wu N; Si G; Zhao M, 2021, 'Experimental study on mechanical properties and failure behaviour of the pre-cracked coal-rock combination', Bulletin of Engineering Geology and the Environment, vol. 80, pp. 2307 - 2321, http://dx.doi.org/10.1007/s10064-020-02049-6
      2021
      Si G; Cai W; Wang S; Li X, 2020, 'Prediction of Relatively High-Energy Seismic Events Using Spatial–Temporal Parametrisation of Mining-Induced Seismicity', Rock Mechanics and Rock Engineering, vol. 53, pp. 5111 - 5132, http://dx.doi.org/10.1007/s00603-020-02210-3
      2020
      Li B; Lan J; Si G; Lin G; Hu L, 2020, 'NMR-based damage characterisation of backfill material in host rock under dynamic loading', International Journal of Mining Science and Technology, vol. 30, pp. 329 - 335, http://dx.doi.org/10.1016/j.ijmst.2020.03.015
      2020
      Li Z; Liu D; Cai Y; Si G; Wang Y, 2020, 'Pore Structure and Compressibility Characteristics of Heat-Treated Coals by N-2 Adsorption/Desorption and Mercury Intrusion Porosimetry', ENERGY & FUELS, vol. 34, pp. 3173 - 3187, http://dx.doi.org/10.1021/acs.energyfuels.0c00135
      2020
      Li Z; Liu D; Cai Y; Wang Y; Si G, 2020, 'Evaluation of coal petrophysics incorporating fractal characteristics by mercury intrusion porosimetry and low-field NMR', Fuel, vol. 263, http://dx.doi.org/10.1016/j.fuel.2019.116802
      2020
      Cai W; Bai X; Si G; Cao W; Gong S; Dou L, 2020, 'A Monitoring Investigation into Rock Burst Mechanism Based on the Coupled Theory of Static and Dynamic Stresses', Rock Mechanics and Rock Engineering, vol. 53, pp. 5451 - 5471, http://dx.doi.org/10.1007/s00603-020-02237-6
      2020
      Cai W; Dou L; Si G; Hu Y, 2020, 'Fault-Induced Coal Burst Mechanism under Mining-Induced Static and Dynamic Stresses', Engineering, http://dx.doi.org/10.1016/j.eng.2020.03.017
      2020
      Li Z; Liu D; Xie S; Fang X; Si G; Cai Y; Wang Y, 2020, 'Evaluation of methane dynamic adsorption−diffusion process in coals by a low-field NMR method', Energy and Fuels, vol. 34, pp. 16119 - 16131, http://dx.doi.org/10.1021/acs.energyfuels.0c03168
      2020
      Liu J; Liu C; Yao Q; Si G, 2020, 'The position of hydraulic fracturing to initiate vertical fractures in hard hanging roof for stress relief', International Journal of Rock Mechanics and Mining Sciences, vol. 132, http://dx.doi.org/10.1016/j.ijrmms.2020.104328
      2020
      Cao W; Shi JQ; Durucan S; Si G; Korre A, 2020, 'Gas-driven rapid fracture propagation under unloading conditions in coal and gas outbursts', International Journal of Rock Mechanics and Mining Sciences, vol. 130, http://dx.doi.org/10.1016/j.ijrmms.2020.104325
      2020
      Yang W; Lu C; Si G; Lin B; Jiao X, 2020, 'Coal and gas outburst control using uniform hydraulic fracturing by destress blasting and water-driven gas release', Journal of Natural Gas Science and Engineering, vol. 79, http://dx.doi.org/10.1016/j.jngse.2020.103360
      2020
      Si G; Belle B, 2019, 'Performance analysis of vertical goaf gas drainage holes using gas indicators in Australian coal mines', International Journal of Coal Geology, vol. 216, http://dx.doi.org/10.1016/j.coal.2019.103301
      2019
      Si G; Durucan S; Shi JQ; Korre A; Cao W, 2019, 'Parametric Analysis of Slotting Operation Induced Failure Zones to Stimulate Low Permeability Coal Seams', Rock Mechanics and Rock Engineering, vol. 52, pp. 163 - 182, http://dx.doi.org/10.1007/s00603-018-1579-x
      2019
      Cai W; Dou L; Si G; Cao A; Gong S; Wang G; Yuan S, 2019, 'A new seismic-based strain energy methodology for coal burst forecasting in underground coal mines', International Journal of Rock Mechanics and Mining Sciences, vol. 123, http://dx.doi.org/10.1016/j.ijrmms.2019.104086
      2019
      Zhao Y; Zhang N; Si G; Li X, 2019, 'Erratum: Study on the optimal groove shape and glue material for fiber bragg grating measuring bolts. (Sensors 2018, 18, 1799)', Sensors (Switzerland), vol. 19, http://dx.doi.org/10.3390/s19071723
      2019
      Cao W; Shi JQ; Si G; Durucan S; Korre A, 2018, 'Numerical modelling of microseismicity associated with longwall coal mining', International Journal of Coal Geology, vol. 193, pp. 30 - 45, http://dx.doi.org/10.1016/j.coal.2018.04.010
      2018
      Cai W; Dou L; Ju Y; Cao W; Yuan S; Si G, 2018, 'A plastic strain-based damage model for heterogeneous coal using cohesion and dilation angle', International Journal of Rock Mechanics and Mining Sciences, vol. 110, pp. 151 - 160, http://dx.doi.org/10.1016/j.ijrmms.2018.08.001
      2018
      Zhao Y; Zhang N; Si G; Li X, 2018, 'Study on the optimal groove shape and glue material for fiber bragg grating measuring bolts', Sensors (Switzerland), vol. 18, http://dx.doi.org/10.3390/s18061799
      2018
      Cai W; Dou L; Si G; Cao A; He J; Liu S, 2016, 'A principal component analysis/fuzzy comprehensive evaluation model for coal burst liability assessment', International Journal of Rock Mechanics and Mining Sciences, vol. 81, pp. 62 - 69, http://dx.doi.org/10.1016/j.ijrmms.2015.09.028
      2016
      Chen D; Pan Z; Shi JQ; Si G; Ye Z; Zhang J, 2016, 'A novel approach for modelling coal permeability during transition from elastic to post-failure state using a modified logistic growth function', International Journal of Coal Geology, vol. 163, pp. 132 - 139, http://dx.doi.org/10.1016/j.coal.2016.07.007
      2016
      Zhao Y; Zhang N; Si G, 2016, 'A fiber bragg grating-based monitoring system for roof safety control in underground coal mining', Sensors (Switzerland), vol. 16, http://dx.doi.org/10.3390/s16101759
      2016
      Han CL; Zhang N; Li BY; Si GY; Zheng XG, 2015, 'Pressure relief and structure stability mechanism of hard roof for gob-side entry retaining', Journal of Central South University, vol. 22, pp. 4445 - 4455, http://dx.doi.org/10.1007/s11771-015-2992-x
      2015
      Si G; Jamnikar S; Lazar J; Shi JQ; Durucan S; Korre A; Zavšek S, 2015, 'Monitoring and modelling of gas dynamics in multi-level longwall top coal caving of ultra-thick coal seams, part I: Borehole measurements and a conceptual model for gas emission zones', International Journal of Coal Geology, vol. 144-145, pp. 98 - 110, http://dx.doi.org/10.1016/j.coal.2015.04.008
      2015
      Si G; Durucan S; Jamnikar S; Lazar J; Abraham K; Korre A; Shi JQ; Zavšek S; Mutke G; Lurka A, 2015, 'Seismic monitoring and analysis of excessive gas emissions in heterogeneous coal seams', International Journal of Coal Geology, vol. 149, pp. 41 - 54, http://dx.doi.org/10.1016/j.coal.2015.06.016
      2015
      Si G; Shi JQ; Durucan S; Korre A; Lazar J; Jamnikar S; Zavšek S, 2015, 'Monitoring and modelling of gas dynamics in multi-level longwall top coal caving of ultra-thick coal seams, Part II: Numerical modelling', International Journal of Coal Geology, vol. 144-145, pp. 58 - 70, http://dx.doi.org/10.1016/j.coal.2015.04.009
      2015
      Kan JG; Zhang N; Li GC; Liang GD; Chen L; Si GY, 2011, 'Floor controlling technology of argillization roadway', Caikuang yu Anquan Gongcheng Xuebao/Journal of Mining and Safety Engineering, vol. 28, pp. 356 - 360
      2011
      Kan JG; Yuan L; Zhang N; Si GY, 2011, 'Bearing capacity of backfilling area roof in gob-side entry retaining', Meitan Xuebao/Journal of the China Coal Society, vol. 36, pp. 1429 - 1434
      2011
      Kan JG; Zhang N; Li BY; Si GY, 2011, 'Analysis of supporting resistance of backfilling wall for gob-side entry retaining under typical roof conditions', Yantu Lixue/Rock and Soil Mechanics, vol. 32, pp. 2778 - 2784
      2011
      Conference Papers
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      Wang C; Zhang C; Si G; Canbulat I, 2020, 'Ground motion characteristics in an underground burst-prone coal mine', in Proceedings of the 39th International Conference on Ground Control in Mining, ICGCM 2020, pp. 64 - 68
      2020
      Durucan S; Cao W; Cai W; Shi J-Q; Korre A; Si G; Jamnikar S; Roser J, 2019, 'Monitoring, assessment and mitigation of rock burst and gas outburst induced seismicity in longwall top coal caving mining', in Aydan Ö; Ito T; Seiki T; Kamemura K (eds.), Proceedings of the 2019 Rock Dynamics Summit, CRC Press, Okinawa, Japan, presented at 2019 Rock Dynamics Summit, Okinawa, Japan, 07 May 2019 - 11 May 2019, https://www.taylorfrancis.com/books/e/9780429327933/chapters/10.1201/9780429327933-2
      2019
      Cao W; Shi JQ; Durucan S; Si G; Korre A, 2018, 'Gas-driven rapid fracture propagation and gas outbursts under unloading conditions in coal seams', in 52nd U.S. Rock Mechanics/Geomechanics Symposium
      2018
      Chalmers D; Si G, 2018, 'Education is the Key to Ventilation Safety', in Chang X (ed.), The proceedings of the 11th International Mine Ventilation Congress, Science Press, Beijing, Xi'an, China, pp. 971 - 977, presented at 11th International Mine Ventilation Congress, Xi'an, China, 14 September 2018 - 20 September 2018, http://dx.doi.org/10.1007/978-981-13-1420-9
      2018
      Cao W; Shi JQ; Durucan S; Si G; Korre A, 2017, 'Modelling the Influence of Heterogeneity on Microseismic Characteristics in Longwall Coal Mining', in 51st US Rock Mechanics / Geomechanics Symposium 2017, American Rock Mechanics Association, San Francisco, California, USA, pp. 680 - 689, presented at 51st US Rock Mechanics/Geomechanics Symposium, San Francisco, California, USA, 25 June 2017 - 28 June 2017
      2017
      Govindan R; Si G; Korre A; Durucan S; Wiese B; Schmidt-Hattenberger C; Liebscher A, 2017, 'The Assessment of CO2 Backproduction as a Technique for Potential Leakage Remediation at the Ketzin Pilot Site in Germany', in Energy Procedia, pp. 4154 - 4163, http://dx.doi.org/10.1016/j.egypro.2017.03.1556
      2017
      Si G; Durucan S; Shi JQ; Korre A; Cao W, 2017, 'Key Parameters Controlling Slotting Operations to Stimulate Gas Drainage Performance in Low Permeability Coal Seams', in 51st US Rock Mechanics / Geomechanics Symposium 2017, American Rock Mechanics Association, San Francisco, California, USA, pp. 447 - 456, presented at 51st US Rock Mechanics/Geomechanics Symposium, San Francisco, California, USA, 25 June 2017 - 28 June 2017
      2017
      Durucan S; Korre A; Andrianopoulos E; Si G; Govindan R; Shi JQ; Franzsen S, 2016, 'Coupled thermo-chemical-mechanical modelling of cavity growth and farfield geomechanical assessment in underground coal gasification', in 33rd Annual International Pittsburgh Coal Conference: Coal - Energy, Environment and Sustainable Development, PCC 2016
      2016
      Si G; Shi JQ; Durucan S, 2013, 'Exact title of paper: Micro-seismic monitoring for uncontrolled gas emissions in underground coal mining', in 30th Annual International Pittsburgh Coal Conference 2013, PCC 2013, pp. 1516 - 1537
      2013
      Kan J; Zhang N; Zhang H; Zhang Z; Si G, 2011, 'Stress evolution and deformation control technology for deep mining influenced roadway', in Applied Mechanics and Materials, pp. 137 - 145, http://dx.doi.org/10.4028/www.scientific.net/AMM.90-93.137
      2011
      Zhang N; Zhao YM; Si GY, 2011, 'Rock bearing capacity- based stepwise bolting for deep underground coal roadway in China', in Advanced Materials Research, pp. 3812 - 3816, http://dx.doi.org/10.4028/www.scientific.net/AMR.255-260.3812
      2011
      Book Chapters
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      Chalmers D; Si G, 2019, 'Education Is the Key to Ventilation Safety', in Proceedings of the 11th International Mine Ventilation Congress, Springer Singapore, pp. 971 - 977, http://dx.doi.org/10.1007/978-981-13-1420-9_83
      2019
      Theses / Dissertations
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      Si G, 2016, An investigation into gas emission and outburst control in thick seam coal mining, Imperial College London, Imperial College London
      2016

      MINESOC Best Lecturer (2018)

      Unearthed Young Innovator Award (2018)

      Imperial Rector’s Scholarship (2011-2014)

      Imperial College International Scholarship (2011-2014)

      Janet & Watson Scholarship (2011-2014)

      Outstanding Graduate Scholarship (2010)

      National Scholarship (2006-2007, 2007-2008)

      Bucyrus Scholarship (2008-2009)

      Outstanding Student of Jiangsu Province (2008)

       

      Lead and Co-Investigator for over 2.1 million research projects. Major Cat 1 research projects are listed below: 

      • Guangyao Si, Peyman Mostaghimi, Ting Ren, Bharath Belle, Jian Zhang, Liang Zhao, Maximise goaf gas drainage for safe coal extraction and emissions reduction, $298,389, ARC Linkage Project
      • Guangyao Si, Joung Oh, Peyman Mostaghimi, Zhentao Li, Reliable determination of strata gas content using geophysical logs and laboratory measurements: Stage 1, $129k, ACARP.
      • Guangyao Si, Appraisal of gas indicators from goaf drainage holes for spontaneous combustion and explosion risk management, ACARP, 2020-2021, $120k.
      • Duncan Chalmers, Guangyao Si, Evaluating GAG docking Connections/Simulations, ACARP, $82k, 2020-2021
      • Peyman Mostaghimi, Ismet Canbulat, Ryan Armstrong, Chengguo Zhang, Guangyao Si, Direct measurements of effective diffusion coefficient of coal), ACARP, 2020-2021, $175k.
      • Guangyao Si, Joung Oh, Paul Hagan, Naj Aziz, Ali Mirzaghorbanal, Development of a numerical modelling approach to better understand the effect of cable bolt performance on roof failure mechanisms in varying rock mass conditions, ACARP, July 2018-July 2020, $389k.

      Mining Engineering; Mine Ventilation; Rock Mechanics; Mine Safety ; Low Emission Technologies

      MINE3310 - Mining Geomechanics

      MINE3510 - Mine Ventilation

      MINE3430 - Mining Systems

      MINE4510 - Advanced Mine Ventilation