ABSTRACT
It is mainly in block structure, stringer structure or disseminated structure with the strength factor of f = 8 ∼ 12 and the density of 2.5 g/cm3, no large structural fracture.
Stopes #15 and #16 are located to the east of the treatment and stope #11 is located to the west (Figure 1). The mined out stopes were partially filled with waste rocks. Spontaneous combustion fire area was above 650 m level, and causing high rock temperature near 650 m level.
