Mining Publication: Updating the NIOSH Support Technology Optimization Program (STOP) With New Support Technologies and Additional Design Features
Original creation date: August 2001
Authors: TM Barczak
The initial Support Technology Optimization Program (STOP), Version 1.0, was released at the 19th Ground Control Conference. This original program has since been updated to Version 2.3 which was released in May, 2001. This paper describes the additional features of Version 2.3, focusing primarily on the following three aspects: (1) including uncontrolled convergence into the design requirements for standing roof supports, (2) the addition of design procedures for cable bolts as an alternative secondary roof support, and (3) the addition of new standing roof support technologies. Another new feature which should facilitate the development of design criteria for standing roof support is the capability to define ground reaction curves through convergence measurements alone without having to make support loading measurements. There are several other new features provided in Version 2.3 which are only briefly addressed in the paper. These include: (1) additional graphics capabilities to facilitate rapid assessment of support comparisons, (2) an East-West designation for support selection to more accurately provide cost and support availability data, (3) additional safety measures including a safety factor to identify support design near the peak support capacity, checks to see if the support dimensions comply with aspect ratio requirements, and a measure of roof coverage for the design layout of the support system. These new features of STOP provide more capabilities to design and analyze secondary roof support systems for conditions which could not be fully analyzed in the original version of the program.
- Analysis of the Interaction Between Mobile Roof Supports and Mine Strata
- A Case Study of Bolt Performance in a Two-entry Gate Road
- Determination of Physical Properties of Cable Bolts in Cement Grout Pull Tests Using Instrumented King Wires
- Evaluation of Tailgate Ground and Support Interaction in the Illinois Basin for the Development of a Ground Reaction Curve Based Standing Support Design
- Evaluation of the Impact of Standing Support on Ground Behavior in Longwall Tailgates
- A First Step in Developing Roof Support Design Criteria Based on Ground Reaction Data for Pittsburgh Seam Longwall Tailgate Support
- Ground Support Factor of Safety Calculator - 1.0.15 Beta
- Longwall Shield and Standing Gateroad Support Designs - Is Bigger Better?
- Pillar and Roof Span Design Guidelines for Underground Stone Mines
- Pumpable Roof Supports: Developing Design Criteria by Measurement of the Ground Reaction Curve