| 摘要 |
This invention relates to mining, in particular to underground mining of flat seams of mineral resources with a monoclinal structure, and it can be used in development of potassium salts deposits which have folds. The invention aims to improve the underground mining of potassium salts deposits. It is achieved through opening and development of a flat seam of mineral resources with a complicated structure of occurrence which include sinking of twined vertical shafts, skip and cage, down to the surface of minerals seam. Furthermore, the shafts are located on the territory of a mine take and at a design distance from its borders in such a way that workings of the shaft bottom are situated in a depressed section, a curve of syncline fold in the minerals seam. The opening of the minerals seam is performed through main incline and subincline, and cross-entries driven from the mine take workings. The inclines and cross-entries are located on the flanks of anticline fold at an acute angle to its axis which is determined according to calculations. |
