If you have access to OneMine as part of a member benefit, log in through your member association website for a seamless user experience.
|In order to define the support parameters, by use of empirical approaches, it is particularly important to analyze the rock-load height that should be controlled by supports. The controlling mechanism however, depends on the type of support used there- fore, the rock loads should be treated differently. In this paper, an empirical equation is introduced which relates the rock-load height (ht) to a quantitative rock quality index (REIR), and roof span (B) as fallows:|
Additional chapters/articles from the SME-ICGCM book Proceeding of the Fifth Conference on Ground Control in Mining (ICGCM)
|Expanded Cement: New Solutions for Age-Old Problems||Determination of Effective Column Lengths for Resin-Grouted||How to Design an Efficient Roof Bolting Plan Based on Simple||Donut Cribbing--A Hew Heavy-Duty Roof Support Concept||Development of A Yielding Steel Post||Design Procedure for Arch Canopies for Rehabilitation of Hig||Investigation of Some Alternatives to Timber Posts and Cribs||Design and Field Testing of a Mobile Roof Support for Retrea||Change in Primary Roof Support System at Quarto Mining Compa||Remote Mining Using Water for Ground Support||New Type of Load Cell for Monitoring of Roof Bolt Tension||Field Measurements of Chain Pillar Response to Longwall Abut||Integrated Instrumentation Method of Stress State, Material||A Study of Roof Caving in the Eastern U.S. Coalfields||A Simple Tool to Measure Stress in Mine Backfill||Optimization of the Stress Control Method to Improve Product||Effect of High Horizontal Stress on Coal Mine Entry Intersec||Analysis of Small-Scale Thrust Faults and Their Effect on Co||A Case History of Computer-Aided Lineament Analysis for Grou||Designing for Upper Seam Stability in Multiple Seam Mining||Behavioral Aspects of Roof/Rib Injuries--Implications for Tr||Engineering Classification of Shales||Empirical Approach to Calculate Rock Loads in Coal Mine Road||Assessment of the Rockburst Proneness in Hard Rock Coal Mine||Outburst Control in Underground Coal Mines,||The Effect of Immediate Strata on Pillar Behavior in Retreat||Roof Control Problems on Development and Longwall Gateroads||A Case Study of Longwall Roof-Supports Interaction||Tailgate Support Evaluation at Plateau Mining Company||Methods of Controlling Hard Roof in a Longwall Face|