Comparison of methods: dynamic versus hydrostatic testing of mine ventilation seals

M.J. SAPKO; S.P. HARTEIS; E.S. WEISS

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Comparison of methods: dynamic versus hydrostatic testing of mine ventilation seals

机译：方法比较：矿井通风密封的动态与静水压测试

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From 2001 to 2007, the Pittsburgh Research Laboratory (PRL) of the National Institute for Occupational Safety and Health (NIOSH) conducted studies to develop alternative methodologies to full-scale explosion testing for determining the ultimate strength of mine seals. As a result, the PRL developed and proposes an alternative seal-strength evaluation method based on a hydrostatic pressure-loading concept. The researchers suggest pressure loading a seal using water to twice the expected dynamic design load. The hydrostatic chamber test offers a means of validating seal designs, establishing appropriate resistance functions and determining the ultimate strength of seals through testing to failure. This article contrasts the full-scale explosion and hydrostatic testing of mine seals using a simple dynamic system model and principles.

机译：从2001年到2007年，美国国家职业安全与健康研究所（NIOSH）的匹兹堡研究实验室（PRL）进行了研究，以开发替代全面爆炸试验的方法来确定矿井密封的极限强度。结果，PRL开发并提出了一种基于静水压力加载概念的替代密封强度评估方法。研究人员建议用水对密封件施加压力，使其达到预期动态设计载荷的两倍。静液压腔测试提供了一种验证密封设计，建立适当的阻力功能以及通过测试失效来确定密封极限强度的方法。本文对比了使用简单动态系统模型和原理进行的矿山密封的全面爆炸和静水压力测试。

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《Mining Engineering》 |2008年第9期|共7页
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M.J. SAPKO; S.P. HARTEIS; E.S. WEISS;
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机译：方法比较：矿井通风密封的动态与静水压测试
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Comparison of methods: dynamic versus hydrostatic testing of mine ventilation seals

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