Gray, I2007-10-052007-10-052003-01Gray, I. 2003. Demonstration of over core stress measurement from surface using the Sigra IST tool. Safety in Mines Research Advisory Committee, SIM 020202, January, 2003, pp 1-43http://hdl.handle.net/10204/1282This report contains a description of the stress measurement process and the results of the stress measurements at Goedehoop. The results of the stress measurements show a very low horizontal stress regime but one in which the stresses are consistent in magnitude and direction. The major principal effective stress is in the region of 4 to 5 Mpa, which is small in the context of a rock UCS of 100 MPa. Of more concern if long wall mining were being considered is the minor principal stress which is in the range of 0.4 to 2 MPa. This low stress could lead to caving problems. In the context of the bord and pillar mining being used the stress regime is considered benignenSIMRACStress measurement processIST ProcedureTectonic stressesSIM 020202Conference PresentationGray, I. (2003). Demonstration of over core stress measurement from surface using the Sigra IST tool. http://hdl.handle.net/10204/1282Gray, I. "Demonstration of over core stress measurement from surface using the Sigra IST tool." (2003): http://hdl.handle.net/10204/1282Gray I, Demonstration of over core stress measurement from surface using the Sigra IST tool; 2003. http://hdl.handle.net/10204/1282 .TY - Conference Presentation AU - Gray, I AB - This report contains a description of the stress measurement process and the results of the stress measurements at Goedehoop. The results of the stress measurements show a very low horizontal stress regime but one in which the stresses are consistent in magnitude and direction. The major principal effective stress is in the region of 4 to 5 Mpa, which is small in the context of a rock UCS of 100 MPa. Of more concern if long wall mining were being considered is the minor principal stress which is in the range of 0.4 to 2 MPa. This low stress could lead to caving problems. In the context of the bord and pillar mining being used the stress regime is considered benign DA - 2003-01 DB - ResearchSpace DP - CSIR KW - SIMRAC KW - Stress measurement process KW - IST Procedure KW - Tectonic stresses KW - SIM 020202 LK - https://researchspace.csir.co.za PY - 2003 T1 - Demonstration of over core stress measurement from surface using the Sigra IST tool TI - Demonstration of over core stress measurement from surface using the Sigra IST tool UR - http://hdl.handle.net/10204/1282 ER -