Measurement and Classification Criteria of Strength Decrease Rate and Brittleness Indicator Index for Rockburst Proneness Evaluation of Hard Rocks.

Materials (Basel) · 2023 · PMC10144335 · PMID 37109936

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a slightly increasing trendno p-value reported

Impact of Loading Rate As shown in Figure 5 a–d, with the increase of loading rate, B 1 (calculated using Formula (1)) and B 2 (calculated using Formula (2)) show a slightly increasing trend, and the values of B 1 and B 2 of coal and marble are larger than that of the other two rocks under load and displacement control modes.

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