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surface mine pit planning and design pdf

surface mine pit planning and design pdf

2020-4-288.4.1 Working in a pit 107 8.4.2 Progressing in longitudinal direction of the opencast mine 111 8.4.2.1 Open cut operation 111 8.4.2.2 Trench construction 112 8.4.3 Progressing in transverse direction of the opencast mine 113 8.4.4 Working on benches 115 8.

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