Van Aswegen, G2007-12-142007-12-142001-11Van Aswegen, G. 2001. Evaluation of the risk to underground mine personnel due to the rockmass response to continuous mining operations. Safety in Mines Research Advisory Committee, GAP 610, November, 2001, pp 1-82http://hdl.handle.net/10204/1789The objective of the study was to determine whether there is a difference in the seismic response of the rockmass between 11-day mining cycle and full calendar operations - FULCO. A literature survey was useful to gain insight in the time dependent rockmass response to mining. This helps to understand how the time of day distribution of seismic events can be affected by changes in mining operations. The literature survey did not contribute to the development of particular procedures for the difference in seismic hazard or risk between 11-day fortnight operations and FULCO. Authors developed the simplistic concept of Seismic Exposure (SE). Authors define the hourly hazard as the average number of events greater than magnitude 1. The liability is the average number of workers underground during that hour. The average daily risk (daily SE) is the product of the hazard and the liability. The full risk for the period under consideration would then be the daily SE multiplied with the number of working days. This can be normalized by production for comparison purposes.enSIMRACGAP 610Mining operationsUnderground mine personnel risksEvaluationsConference PresentationVan Aswegen, G. (2001). Evaluation of the risk to underground mine personnel due to the rockmass response to continuous mining operations. http://hdl.handle.net/10204/1789Van Aswegen, G. "Evaluation of the risk to underground mine personnel due to the rockmass response to continuous mining operations." (2001): http://hdl.handle.net/10204/1789Van Aswegen G, Evaluation of the risk to underground mine personnel due to the rockmass response to continuous mining operations; 2001. http://hdl.handle.net/10204/1789 .TY - Conference Presentation AU - Van Aswegen, G AB - The objective of the study was to determine whether there is a difference in the seismic response of the rockmass between 11-day mining cycle and full calendar operations - FULCO. A literature survey was useful to gain insight in the time dependent rockmass response to mining. This helps to understand how the time of day distribution of seismic events can be affected by changes in mining operations. The literature survey did not contribute to the development of particular procedures for the difference in seismic hazard or risk between 11-day fortnight operations and FULCO. Authors developed the simplistic concept of Seismic Exposure (SE). Authors define the hourly hazard as the average number of events greater than magnitude 1. The liability is the average number of workers underground during that hour. The average daily risk (daily SE) is the product of the hazard and the liability. The full risk for the period under consideration would then be the daily SE multiplied with the number of working days. This can be normalized by production for comparison purposes. DA - 2001-11 DB - ResearchSpace DP - CSIR KW - SIMRAC KW - GAP 610 KW - Mining operations KW - Underground mine personnel risks KW - Evaluations LK - https://researchspace.csir.co.za PY - 2001 T1 - Evaluation of the risk to underground mine personnel due to the rockmass response to continuous mining operations TI - Evaluation of the risk to underground mine personnel due to the rockmass response to continuous mining operations UR - http://hdl.handle.net/10204/1789 ER -