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导言能量和应力波力学的研究表明,岩石冲击钻进涉及在每一次打击中反复进行的下述步骤:(i)由碰撞产生应力波能量,(ii)应力波能量通过一根或几根相连的钎杆传播,(iii)由于钎头对岩石的作用,应力波的能量转化为功。在本文中我们着重介绍利用“苹
INTRODUCTION Studies in energy and stress wave mechanics have shown that rock percussion drilling involves the following steps that are repeated in each strike: (i) generating stress wave energy from a collision, (ii) stress wave energy passing through one or more links (Iii) the energy of the stress wave is converted to work due to the action of the bit on the rock. In this article we focus on the use of "Apple