A classification system for excavation of surface coal measures

Kirsten, 1982, A classification system for excavation in natural materials, Civ. Eng. S. Afr., 24, 293 Singh, 1986, Assessment of ground rippability in opencast mining operations, 38, 21 Paşamehmetoğlu, 1988, Jeoteknik ve performans verilerinin değerlendirilmesi, kazilabilirlik siniflama sisteminin önerilmesi, 150 Franklin, 1971, Logging the mechanical character of rock, Trans. Inst. Min. Metall., 80, A1 1986 1982 Atkinson, 1971, Selection of open-pit excavating and loading equipment, Trans. Inst. Min. Metall., 80, A101 Weaver, 1975, Geological factors significant in the assessment of rippability, Civ. Eng. S. Afr., 17, 313 Bailey, 1975, Rock types and seismic velocities versus rippability, 135 Church, 1981 Smith, 1986, Estimating rippability of rock mass classification, 443 Singh, 1987, Development of a new rippability index for coal measures excavations, 935 Müftüoğlu, 1983, A study of factors affecting diggability in British surface coal mines Brown, 1981, Rock Characterisation Testing and Monitoring, 211 Paşamehmetoğlu, 1988, Diggability assessment of power shovel at stripping operations in a lignite mine, 407