1987 Reservoir Engineering in Coal Seams, Part 1. The Physical Process of Gas Storage and Movement in Coal Seams Reservoir Engineering in Coal Seams, Part 2 Observations of Gas Movement in Coal Seams. 2013 Data acquisition needs for slope monitoring Direct Measurement of Gas Content Without Coring Real Stress Distributions The hydrogeology of a moving cut slope and real time modelling of groundwater movement. Int Symp on Slope Stability in Open Pit Mining and Civil Engineering – ACG 2013 2015 The anisotropy and inhomogeneity of coal permeability and interconnection of adjacent seams Isotherms, gas contents and diffusion coefficients of coals and shales 2017 20170921_ATS Managed Pressure Drilling Stress in the Ground 20170524 The Measurement of Permeability and Other Ground Fluid Parameters – Gray 2018 Anisotropic and Nonlinear Properties of Rock including Fluid Under Pressure – Gray, Zhao & Liu (Eurock 2018) Mechanical Properties of Coal Measure Rocks Containing Fluids at Pressure – Gray, Zhao & Liu (Coal 2018) The Determination of Anisotropic and Nonlinear Properties of Rock through Triaxial and Hydrostatic Testing – Gray (ARMS10) The Practicalities of Effective Stress Measurement in Rock – Gray (AusRock 2018) Flow Measurement in Gas Drainage 4pm 2019 Flow Measurement in Gas Drainage – Harvey & Gray (Coal 2019) Geotechnical Aspects of Exploration – Gray & Wood 2020 Directional Drilling for Tunnel Investigation and Associated Testing Techniques – Gray (WTC) Longwall Behaviour in Massive Strata – Gray & Gibbons (COC) Rock Property Determination – Gray (UMT) Why Horizontal Stress And Strain Matters – Gray, Gibbons & Shutov (Minex) 2021 Why Rock Stress Matters and How to Measure It – Gray (African Mining Brief) Sigra in Dam and Hydro Engineering – Vladivostok 2022 Geotechnical Exploration for Underground Coal Mines Factors Influencing Caving 95_Gray 2022 Dealing with bursts – a new approach Coal 2022 Coal measure rocks and their properties 2023 Structural Engineering Approach to Longwall Rock Mechanics in Massive Strata The fundamentals of permeability testing The fundamentals of piezometer installation The fundamentals of stress measurement in rock
