WebShow/Hide Options ... Web24 Jun 2024 · In particular, the rockburst hazard – a sudden failure of rocks accompanied with violent ejections of rock fragments and rapid release of energy stored in highly …

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Webthe prediction of rockburst potential, e.g., strain energy storage index (Wet) proposed by [19], defined as the ratio of stored strain energy (Wsp) to dissipated strain energy (Wst). … Web为了研究高温后花岗岩的可钻性和微观损伤变化, 同时也为了研究高温后不同冷却时间对可钻性的影响, 对高温热处理后的花岗岩冷却不同时间(2, 4, 24, 48 h), 通过可钻性实验和铸体薄 … rugby explorer wa

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Rockburst (RB) is known as one of the deadliest and most destructive geotechnical events in deep underground spaces under high stresses. The complexity of the RB phenomenon and uncertainty arising from variability in geotechnical and geomechanical conditions makes its prediction very difficult. See more To validate the developed mathematical relation, four evaluation criteria including accuracy (AC), sensitivity (SE), specificity (SP), and Matthew’s correlation coefficient (MCC) were used. … See more The receiver operating characteristics (ROC) curve is another tool for assessment of models in classification problems. ROC illustrates the trade-off between the true positive rate (sensitivity) and the false positive … See more For comprehensive evaluation of the developed relation, it was compared with the recently developed models in the literature for prediction of RB potential. This comparison is … See more In this section, the performance of developed relation is validated using testing datasets that have not been used during the process of … See more Web1 Oct 2024 · Despite the existence of the extensive number of predictive models for rockburst, a reliable prediction of rockburst damage potential is challenging. One of the … Web5 May 2024 · In underground rock engineering, a rockburst is a type of dynamic geological disaster. It is a dynamic instability phenomenon that occurs when a rock mass or … rugby exercises