The elongates are often used in conjunction with rapid yield hydraulic props but in some cases pre stressable yielding types have replaced the latter as face area support in seismically active mines Support resistance and energy absorption calculati ID: 82185
Download Pdf The PPT/PDF document "The Journal of The South African Institu..." is the property of its rightful owner. Permission is granted to download and print the materials on this web site for personal, non-commercial use only, and to display it on your personal computer provided you do not modify the materials and that you retain all copyright notices contained in the materials. By downloading content from our website, you accept the terms of this agreement.