Surveying Control of the Support Condition in Shafts on Mine. the Technologies of a Recovery of the Silo Liner with Anchors

Modern silo shafts are exploited in a variety of mining and hydro geological
conditions, which have a significant impact on the stability of the shaft and, as a
consequence, on the condition of its support and reinforcement. Taking into account
their constant increase in depth, they are complex objects in terms of their operation
and maintenance in the passport condition. A feature of silo shafts is a large number
of crossed rock layers, which often differ significantly in their physico-mechanical
and strength characteristics. High level of failures is accompanied by cutter breaks,
breakouts, deviations from the design position of the reinforcement, which, in turn,
disrupts the work of the lifting complex. A set of measures for mine shafts
reinforcement, as well as for breaking of their deformations was compiled by
surveyors of several mines. In practice, the complex was used at the mine, named
after Stashkov.