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首页> 外文会议>Asia-Pacific Conference on Shock amp; Impact Loads on Structures; 20031112-14; Changsha, Hunan,(CN) >THE HARD ROCK
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THE HARD ROCK

机译：坚硬的岩石

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摘要

On the multi-functional experiment table manufactured by ourselves, many experiments were conducted on the granite and the concrete by applying the PDC and carbide alloy cutters such as the single cutting, the single impact and cutting-impact combined experiments. And then the dynamic and static parameters were measured in the whole experiment process. The experiment results show that: 1) the effect of the linear cutting was evidently increased with increasing of the static pressure and decreasing of rock strength; 2) the characteristics of breaking rock under the combined action are similar to that under the single static pressure or impact crushing the rock with changes of leap type; the specific energy of the rock fragment under combined mode is 2-3 times than that of linear cutting fragment. There was a superior value between the combined action of static and dynamic loads; 3) comparing the depth of linear cutting of granite without impact and that with impact under the same WOB, it is observed that the combination of cutting and impacting can greatly increase the rate of penetration in very hard rock, and the depth of rock breakage increases evidently with decreasing of impacting space or increasing of the impact frequency. Research on the method and effects for breaking the hard rock has the important theories and the realistic meaning.
机译：在我们自己制造的多功能实验台上，通过使用PDC和硬质合金刀具对花岗岩和混凝土进行了许多实验，例如单切削，单冲击和切削冲击组合实验。然后在整个实验过程中测量动态和静态参数。实验结果表明：1）随着静压力的增加和岩石强度的降低，线性切削的效果明显增强。 2）联合作用下的破碎岩石特性与单静压或冲击式破碎的岩石具有跳跃类型的变化相似；组合模式下岩石碎块的比能是线性切割碎块的2-3倍。静载荷和动载荷的组合作用之间具有较高的价值。 3）比较无冲击的花岗岩和在相同的WOB下有冲击的线性切削的深度，观察到切削和冲击的组合可以极大地增加非常坚硬岩石中的渗透率，并且岩石破裂的深度增加显然随着冲击空间的减小或冲击频率的增加。研究破碎坚硬岩石的方法和效果具有重要的理论和现实意义。

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