John Sedman

John Sedman is an independent engineering geologist who advises clients on quarry development planning, waste tip design and remediation. For over 40 years, John has held a number of positions in the mining and mineral extractive industries, from production management to technical roles in rock mechanics.

Trained in operations management in the extractive and ready-mix concrete businesses, he became operations manager for Hall Aggregates in the UK before joining Goldfields of South Africa in 1981.

On his return to the UK, he joined Ove Arup and Partners to work on the site investigation into the collapse of Wenlock limestone mines. Subsequently, he was group engineering geologist for ARC/Hanson.

A specialist in mine safety, loss control and rock mechanics, in recent years he has worked principally on excavation and tip design, and shallow room and pillar mines.

Both a Chartered Geologist and Chartered Engineer, John has written technical papers on a range of subjects, including rockfall hazard and risk assessment in hardstone quarries, and reserve assessment and mineral extraction. He holds a master’s degree in Engineering Geology.

Having hung up his rugby boots and squash racquet, John is now determined to master golf.
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