Regulation 112(1) A person shall not walk or climb on top of an active surge stockpile of broken rock which is fed from above and from which the rock is withdrawn through an extraction system below unless(a) that person has been instructed to do so by the manager of the mine or that manager's representative;(b) the feed to and from the stockpile has been stopped; (c) it has been established that the extraction system below is not hung up;(d) that person uses an appropriate fall arrest protection system; and(e) that person is assisted by another person stationed at a safe vantage point above that person.(2) A person shall not use earthmoving equipment on a surge stockpile unless the manager of the mine or that manager's representative has authorised the person to do so.(3) The manager of the mine or that manager's representative shall not give authorisation under sub-regulation (2), unless that manager or that manager's representative is satisfied that it is safe to use the earthmoving equipment on the stockpile.(4) The manager of a mine shall ensure that, if material is removed from the base of a stockpile, adequate precautions are taken to ensure that a slump of the stockpile will not occur to endanger a person working on, or in the vicinity of, the stockpile.(5) Subject to sub-regulation (6), the manager of a mine shall ensure that any tunnel under a surge stockpile of broken rock or other unconsolidated material has two entrances which are kept clear of obstructions at all times.(6) A tunnel under a surge stockpile may have a single entrance, if there is only one extraction point located at the blind end of the tunnel.