| 摘要 |
FIELD: mining. ^ SUBSTANCE: during canopy installation for cylindrical sections there used are pipes that are put close to one another. The pipes are connected by flexible coupling at cross-section. The pipes are arranged along the ore body with the connection of neighbouring sections by couplings that rigidly fix pipe sections in relation to each other. Elastic material is used as a net, for example, nonwoven geotextile fabric that is covered by the layers of clay. The quantity of clay layers that are separated by geotextile fabric layers is taken more than three, the height of each clay layer is taken more than one metre. ^ EFFECT: increase of work safety, increase of range of application of this method, the possibility of use in ores of mean and small stability, raising the total performance of working off of the operational block during clearing excavation of chambers of the second sequential queue. ^ 3 cl, 6 dwg, 1 tbl |
