Arrangement method of shallow-hole shrinkage mining bottom structure
The invention discloses an arrangement method of a shallow-hole shrinkage mining bottom structure and relates to the technical field of shallow-hole shrinkage mining. The arrangement method comprisesthe following steps that a mine field is excavated and arranged, an ore-drift roadway is firstly exca...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The invention discloses an arrangement method of a shallow-hole shrinkage mining bottom structure and relates to the technical field of shallow-hole shrinkage mining. The arrangement method comprisesthe following steps that a mine field is excavated and arranged, an ore-drift roadway is firstly excavated, transverse drift is executed to detect an ore body sample, then an outside-vein transportation roadway is excavated, an ore-drift stope portion is expanded to top and bottom board boundary lines so as to determine an ore body area, then a courtyard is excavated, and an ore passing communication ore body is upward excavated from the transportation roadway; a bottom structure is laid, annular hoops are symmetrically installed at two ends of the outer side of a long-strip-shaped wooden block, metal plates are cushioned between the annular loops and the long-strip-shaped wooden block, an iron chain is welded between the two metal plates and penetrate through the annular hoops, an installed and formed bottom trac |
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