Regulation 83(1) The manager of a mine shall ensure that geotechnical aspects are adequately considered in relation to the operation and abandonment of mine operations or works.(2) The manager of a surface operation shall in relation to ground control ensure among others that(a) adequate consideration is given to(i) local geological structures and their influence on wall stability; and(ii) the shear strength of the rock mass and its geological structure;(b) a proper analysis is carried out of rain water inflow, surface drainage patterns, groundwater regime and mine de-watering procedures and their influence on wall stability over time;(c) where necessary, appropriate designs of rock reinforcement are applied and used, and the quality of installation is verified;(d) analysis is carried out of open pit wall stability for the projected geometry of the pit;(e) appropriate drilling and blasting procedures are used to develop final walls; and(f) appropriate methods of open pit wall monitoring are used over a period of time to determine wall stability conditions.(3) The manager of a mine shall ensure that appropriate precautions are taken and safe working procedures are developed, documented and followed where open pits are excavated through abandoned underground workings, or in close proximity to current underground workings.