Abeykoon, AGTBB; Lanka, KASS; Ovitigala, IR; Wijerathna, KS; Hemalal, PVA; Dharmaratne, PGR
[Conference-Full-text]
Vein graphite mining is more often carried out by underground mining in
Sri Lanka due to its mode of occurrence. Bogala underground mine is one of the
major graphite mines in the country, where overhand cut-and-fill ...