Ashvin Gupta

Geotechnical Challenges and Failure Mechanisms in Indian Underground Coal Mines: Roof Stability, Pillar Design and Floor Behaviour under Complex Geological Conditions

Underground coal mining in India is constrained by complex Gondwana geology, variable rock-mass quality, increasing extraction depths, and heterogeneous stress conditions. Weak laminated shale, jointed sandstone, high horizontal stresses, pillar degradation, floor instability, and mining-induced deformation frequently...