... for investigating this problem. It was found that bedding planes and lithology play an important part in the stable dissipation of energy in multi-reef remnant geometries. The study indicated that stope convergence and the various energy components are affected by the presence, position, and properties of a bedding...

... phase, and the propagation of the rupture front. A surface array of accelerometers was installed in the Far West Rand mining district. This data was integrated with measurements of stress, in-stope closure, and strong motion, as well as data recorded by the mine-wide seismic networks. New insights...

... the estimation of original stoping width. The estimated closures were calculated by subtracting the current stoping widths from the estimated original stoping widths. An elastic numerical modelling program was used to evaluate the elastic convergences at the same positions where the closures were estimated...

... does not decay according to a simple exponential model. In conclusion, explicit simulation of the fracture zone in the face appears to be a better approach to simulate the time-dependent behaviour in deep hard-rock stopes. The calibration of the limit equilibrium model is very difficult, however...

... There are numerous factors that affect open stope stability and often result in falls of ground. These falls of ground can be attributed to factors such as beam failure due to a larger than normal roof area (hydraulic radius too large), adverse ground conditions, seismicity, the stress-strain...

... in a longhole stope to be kept to a minimum. The longhole stopes are non-entry excavations, which are remote cleaned to avoid exposure of personnel. However, excessive rockfalls can significantly influence productivity and cause damage to mining machinery. This paper presents a risk-based approach to design...

... Comparing stope performance relative to the engineering design is of paramount importance for any mining operation. A database was created of 105 stopes mined between 170 m and 800 m below surface from July 2014 to November 2016 at the Goldcorp Eleonore mine. The database consists of more than...

... The site for a residential apartment building overlies an abandoned iron mine in granitic gneiss in northern New Jersey. The mine stope is about 137 m (450 long) and dipping over 344m (800 feet) at 450 to 500. As the building footprint straddles the mine site needed remediation. The remediation...

... Most of the lead-zinc mines in the state of Rajasthan, India currently employ the blast-hole stoping method with backfilling. One of these mines, Rajpura Dariba mine, has reached a depth of about 700 m. In this mine the footwall and hangingwall of the orebody contain sheared regions, represented...