Mining and Quarrying Safety and Health Regulation 2017
sec.44Ground control
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sec.44 Ground control
A person who has an obligation under the Act to manage risk in relation to ground control at a mine during the mine’s design, operation or abandonment must ensure appropriate measures are taken to prevent or control local and area failures in ground integrity. The person must have regard to the following matters in deciding the appropriate measures— local geological structure and rock properties and their influence on rock stability; the size and geometry of the mine’s openings; the presence of previously excavated or abandoned underground workings; water inflow, drainage patterns, groundwater regimes and mine dewatering procedures and their influence on rock stability over time; the analysis and interpretation of relevant geotechnical data, including the monitoring of openings and excavations. The measures must include the following things— the minimisation of rock damage, from blasting, at the excavation perimeter; the use of appropriate equipment and procedures for scaling; the proper design, installation and quality control of rock support; the timing of ground support to take account of rock conditions and behaviour. (sec.44-ssec.1) A person who has an obligation under the Act to manage risk in relation to ground control at a mine during the mine’s design, operation or abandonment must ensure appropriate measures are taken to prevent or control local and area failures in ground integrity. (sec.44-ssec.2) The person must have regard to the following matters in deciding the appropriate measures— local geological structure and rock properties and their influence on rock stability; the size and geometry of the mine’s openings; the presence of previously excavated or abandoned underground workings; water inflow, drainage patterns, groundwater regimes and mine dewatering procedures and their influence on rock stability over time; the analysis and interpretation of relevant geotechnical data, including the monitoring of openings and excavations. (sec.44-ssec.3) The measures must include the following things— the minimisation of rock damage, from blasting, at the excavation perimeter; the use of appropriate equipment and procedures for scaling; the proper design, installation and quality control of rock support; the timing of ground support to take account of rock conditions and behaviour.
- (a) local geological structure and rock properties and their influence on rock stability;
- (b) the size and geometry of the mine’s openings;
- (c) the presence of previously excavated or abandoned underground workings;
- (d) water inflow, drainage patterns, groundwater regimes and mine dewatering procedures and their influence on rock stability over time;
- (e) the analysis and interpretation of relevant geotechnical data, including the monitoring of openings and excavations.