Loginov  Egor Vyacheslavovich, Loktiukova  Olga Iurevna, Melnitskaya  Militina Evgen`evna, 
    Calculation of Bench Width for Backhoe Hydraulic Excavators
Operated in Sinking Mining Systems,
    Journal of Engineering and Applied Sciences,
    Volume 14,Issue 17,
    2019,
    Pages 6444-6448,
    ISSN 1816-949x,
    jeasci.2019.6444.6448,
    (https://makhillpublications.co/view-article.php?doi=jeasci.2019.6444.6448)
    Abstract: The study contains results of studies completed to determine the bench width for backhoe hydraulic
excavators. Bench width is among the main parameters providing efficient operations in open pits and quarries
now a days. Scientists have developed various methods to define this parameter, however, they are mostly
based on the experience gained from operation of rope excavators with rack crowded shovel. At the same time,
there is no clear system for defining these parameters provided that all required set of calculation elements is
available. Hydraulic excavators require less space on the working bench compared to rope ones with a front
shovel with the same standard size. Bench width along the mining front varies within an average range,
however, it cannot be less than the design minimum one. The method shown in this study allows determining
the balanced bench width at different levels of open pits.
    Keywords: Open pit;mining method;hydraulic excavator;bench width;slope angle of the pit wall;rope