Determination of the parameters of local reinforced zones under the protection means

In order to develop effective measures ensure the operational condition of development workings behind face in conditions soft footwall rocks, construction local reinforced zones under protection means has been proposed. The presence such allows transferring current load deep into massif and creating a stable foundation protective structure. results researches concerning establishment rational parameters with application method finite elements, experiment planning statistical processing these have presented. empirical dependence subsidence on their load, deformation characteristics zone host width means, strength underlying rocks geometric dimensions determined. relative indicator efficiency strengthening which is used for determining locally offered.