Faculty Profile

BIOGRAPHY

  • PhD (2013), MSCE (2011), Civil Engineering (Geosystems), Georgia Tech
  • MS, BS, Civil Engineering (Geotech), Tongji University

Sheng Dai, Ph.D., is an Assistant Professor in the School of Civil and Environmental Engineering at the Georgia Institute of Technology in Atlanta, Georgia, USA.

Dr. Dai earned his BS and MS degrees in civil engineering from Tongji University, Shanghai, China. In 2008, he joined the geosystems group at Georgia Tech, where he served as the president of the Geotechnical Society (2011-2012) and earned his MSCE and Ph.D. degrees in civil engineering (with a minor in mathematical geophysics) in 2011 and 2013 respectively. After graduation, he worked in the Predictive Geosciences Division at the National Energy Technology Laboratory of U.S. Department of Energy. In August 2015, he returned to Georgia Tech and joined the faculty in the School of Civil and Environmental Engineering. He is also an affiliated faculty in the Ocean Science and Engineering program and the Strategic Energy Institute at Georgia Tech.

Dr. Dai has strong research and teaching interests in energy geotechnics, geomaterials characterization, geomechanics, and flow in porous media. His group develops innovative testing techniques in combination with advanced numerical modeling to study fundamental properties and BTHMC-coupled processes in soils and rocks at elevated pressure and temperature conditions. His research advances the fields of gas hydrate, enhanced geothermal systems, geological carbon sequestration, subsurface drilling/sitmulation, and subsurface sensing and monitoring.

RESEARCH INTERESTS

  • Energy geotechnics: gas hydrate, geothermal energy, carbon sequestration
  • Geomaterials characterization: lab/field testing techniques, wave-based testing theories, tomography, coupled processes, elevated pressure-temperature condition
  • Flow in porous and fractured media: multiphase, anisotropy, microbial effects, active suspensions
  • Reservoir geomechanics: subsurface drilling/stimulation, oil/gas production, subsurface sensing/monitoring, borehole logging, pressure core testing

HONORS & AWARDS

  • 12/2018 - , Associate Editor, Journal of Geophysical Research: Solid Earth
  • 2017, Spotlight of Research, featured in Fire in the Ice Newsletter, NETL/DOE
  • 2016 - , GOM2 Marine Test Technical Advisory Committee, UT/DOE
  • 2016/17, Class of 1969 Teaching Fellows, Georgia Tech
  • 2015 - , Pressure Core Advisory Board, US Geological Survey, US Department of Interior
  • 2013; 2014, ORISE Fellowship, DOE
  • 2013, George F. Sowers Distinguished Graduate Student Award, Georgia Tech

RECENT PUBLICATIONS & PRESENTATIONS

ARTICLES
  • Jang, J., Dai, S., Yoneda, J., Waite, W.F., Stern, L.A., Boze, L.G., Collett, T.S. and Kumar, P., 2018. Pressure core analysis of geomechanical and fluid flow properties of seals associated with gas hydrate-bearing reservoirs in the Krishna-Godavari Basin, offshore India. Marine and Petroleum Geology.
  • Dai, S., Kim, J., Xu, Y., Waite, W.F., Jang, J., Yoneda, J., Collett, T.S. and Kumar, P., 2018. Permeability anisotropy and relative permeability in sediments from the National Gas Hydrate Program Expedition 02, offshore India. Marine and Petroleum Geology.
  • Kim, J., Dai, S., Jang, J., Waite, W.F., Collett, T.S. and Kumar, P., 2018. Compressibility and particle crushing of Krishna-Godavari Basin sediments from offshore India: Implications for gas production from deep-water gas hydrate deposits. Marine and Petroleum Geology.
  • Choi, J.H., Dai, S., Lin, J.S. and Seol, Y., 2018. Multistage Triaxial Tests on Laboratory‐Formed Methane Hydrate‐Bearing Sediments. Journal of Geophysical Research: Solid Earth. 123 (5): 3347-3357
  • Liu, Z., Dai, S., Ning, F., Peng, L., Wei, H. and Wei, C., 2018. Strength estimation for hydrate‐bearing sediments from direct shear tests of hydrate‐bearing sand and silt. Geophysical Research Letters, 45(2), pp.715-723.
PROCEEDINGS
  • Li, G., Zhan, L., & Dai, S. (2018). Influence of pore distribution characteristics on relative hydraulic conductivity in soil covers – a pore-scale numerical investigation. The 8th International Congress on Environmental Geotechnics, Oct. 28 – Nov. 1, 2018, Hangzhou, China.
  • Lu, Y., Cortes, D.D., & Dai, S. (2018). From phase change materials to the enhanced geothermal recovery. B2G-Atlanta, 14 September, 2018, Atlanta, USA.
  • Zhao, Y., Jeong, B., Kwon, T.-H., & Dai, S. (2018). Effects of motile bacteria on surface tension. B2G-Atlanta, 14 September, 2018, Atlanta, USA.
  • Kim, J., & Dai, S. (2018). Effects of hydrate on sand crushing. International Symposium on Energy Geotechnics (SEG-2018), Swiss Federal Institute of Technology, Sept 25-28, 2018, Lausanne, Switzerland.
  • Cortes, D.D., Narsiriam, A., & Dai, S. (2018). Smart ground-source borehole heat exchanger backfills: A numerical study. International Symposium on Energy Geotechnics (SEG-2018), Swiss Federal Institute of Technology, Sept 25-28, 2018, Lausanne, Switzerland.