Under conditions of railroad transportation and use of single-bucket excavator optimum height of bench depends on costs of mining equipment and on maintenance costs; methods of blasting have to produce fragments of desired size at given height of bench; optimum height of bench in open pits with output of 10-15 million cu m/yr has to be 24-26 m; formulas for calculation of rate of face progress, number of cars necessary to transport rock, height of bench, angle of bench slope, and volume of work to be done when height of bench is increased.


    Access

    Access via TIB

    Check availability in my library


    Export, share and cite



    Title :

    Method of determining optimum height of bench


    Additional title:

    Metod opredeleniya optimal'noi vysoty ustupa


    Contributors:
    Simkin, B.A. (author) / Seinov, N.P. (author)

    Published in:

    Publication date :

    1964


    Size :

    4 pages


    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    Russian




    Improved Height Work Bench

    European Patent Office | 2020

    Free access

    Improved Height Work Bench

    YOO NAM HO | European Patent Office | 2020

    Free access

    Optimum Climb to Height

    Corner, J. | Emerald Group Publishing | 1940


    Optimum climb to height

    Corner, J. | Engineering Index Backfile | 1940


    Height determining method and apparatus

    ZHOU WEI | European Patent Office | 2025

    Free access