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Keywords: drilling debris quantity
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Proceedings Papers

Paper presented at the 3rd ISRM Young Scholars Symposium on Rock Mechanics, November 8–10, 2014
Paper Number: ISRM-YSS-2014-035
... diameter empty holes®, ®,which can form weakening zone near roadway to avoid high elastic energy storage, The parameters are shown in Table 2. 5 THE EFFECT OF RELEASING ELASTIC ENERGY The effect of elastic energy releasing method is proved by monitoring of supporting pressure and drilling debris quantity...

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