Obtaining a reasonable assessment of the stability of high-level pillars stabilized using
cemented backfill is particularly important when designing deeply-buried metal mines. This …

Ground control is an integral element of mine design and worker safety. The use of concrete
pillars for underground mines is of paramount importance to maintaining the economic and …

Partial extraction methods such as underground strip pillar mining or room-and-pillar mining
are widely adopted techniques to control ground subsidence. However, pillar failure in …

The artificial concrete pillar (ACP) replacement technique is a safe and reliable method to
safely mine orebody pillar in room and pillar mining. In contrast to traditional ore pillar …

Estimating average vertical pillar stresses is a critical step in designing room-and-pillar
mines. Several analytical methods can be used to estimate the vertical stresses acting on …

In room-and-pillar mining systems, pillars are left to support the overlying rock strata and
prevent collapses. Thus, pillar stability is an important prerequisite for safe working …

When residual pillars are extracted in a short time in room and pillar mining, the load
transferred from the removed pillar acts on neighbouring pillar workings in a dynamic …

Pillar stability is an important condition for safe work in room-and-pillar mines. The instability
of pillars will lead to large-scale collapse hazards, and the accurate estimation of induced …

The roadway stability of the lower coal seam (LCS) is a huge challenge to mine safety in
close-distance coal seams. Herein, the floor stress distribution law of the upper coal seam …

Large and complex goaf groups have formed as a consequence of mining activities in the
Yichang Phosphate Mine. These goaf formations have given rise to recurring engineering …