School of Earth and Environment

James Woodman James Woodman

Postgraduate Researcher

Email address: eejwo@leeds.ac.uk
Room: 7.131

Affiliation: Institute of Applied Geoscience

Biography

I am a third year PhD student working in the Institute of Applied Geosciences. My research involves looking at the effects of elevated temperature and stresses on the mechanics of rock discontinuities, through small scale laboratory testing and discrete element numerical modelling.

Qualifications

MSci Geology with an international year - 1st Class (with honours)

Memberships/Fellowships

Fellow of the Geological Society of London

Teaching Interests

Demonstrating on the MSc Engineering Geology course:

  • SOEE5017 Geological Characterisation & Investigation
  • SOEE5045 Rock Mechanics

Project details

Project title

Mechanics of discontinuities under elevated temperatures and pressures

Supervisors

Funding

EPSRC Industrial CASE (Arup)

Start date

1st October 2015

Project outline

The project is focussed on understanding the micromechanical behaviour of rock discontinuities at elevated temperatures and stresses. The project is focussed on the small scale laboratory testing of low strength sedimentary lithologies, looking at the effects of changing discontinuity surface morphology on discontinuity strength and stiffness with applications to deep underground engineered structures. To date the project has involved the novel use of 3D modelling and 3D printing to create moulds for casting rock-like synthetic samples. This allows for the preparation of identical samples for triaxial testing with the same morphological and mechanical characteristics, overcoming the problem of heterogeneity and anisotropy of natural rock and allowing for the repeatable and reliable testing of identical samples under varying conditions.

Work is currently being undertaken to fully characterise synthetic materials representative of natural lithologies, through testing of samples in triaxial conditions at the University of Leeds and the Rock Mechanics and Physics Laboratory at the British Geological Survey. Once the micromechanical behaviour at elevated temperatures and pressures has been characterised in a representative synthetic material it is planned to characterise natural samples as well as verifying the behaviour using discrete element numerical modelling. The outcome of this study is to provide a better understanding of the behaviour of discontinuities at elevated temperatures and pressures to allow refinement of failure criterion and more intelligent design of engineering structures at depth.

Publications

Woodman J; Murphy W; Thomas ME; Ougier-Simonin A; Reeves H; Berry TW (2017) A novel approach to the laboratory testing of replica discontinuities: 3D printing representative morphologies. 51st US Rock Mechanics / Geomechanics Symposium, San Francisco, California, USA, 25 Jun 2017 - 28 Jun 2017.

Conference Contributions

Parsons S; Woodman J; Murphy W (2017) Thermal loading in rock masses: controls and effects. International Symposium on Coupled Phenomena in Environmental Geotechnics, Leeds, UK, 6 - 7 September 2017.

Woodman J; Murphy W; Thomas ME; Ougier-Simonin A; Reeves H; Berry TW (2017) A novel approach to the laboratory testing of replica discontinuities: 3D printing representative morphologies. 51st US Rock Mechanics / Geomechanics Symposium, San Francisco, California, USA, 25 Jun 2017 - 28 Jun 2017.