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Browsing by Author "Stables, Brandon Shane"

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    Preliminary Design of an Improved Load Measuring Device for Underground Mining Standing Supports
    Stables, Brandon Shane (Virginia Tech, 2021-11-30)
    Standing support is often used in conjunction with underground retreat mining. Knowledge of the load-displacement behavior of a standing support and loading induced by the mine opening is critical proper support selection. The NIOSH STOP database contains load-displacement laboratory test data for most commonly used standing supports. Hydraulic load cells currently used to measure in-situ loading of standing supports have exhibited leakage under load, producing irregularities within the dataset. An improved hydraulic load cell eliminates leakage and produces more consistent data.