关于岩石的动静态侵入断裂

On Rock Fracture under static and Dynamic Indentations

对岩石、玻璃和陶瓷等脆性材料的动静态侵入断裂实验及理论研究现状进行了总结和评述。以实验结果为依据,描述了岩石在动静态侵入载荷作用下所产生的裂纹类型及其形成与扩展过程;讨论了用半经验,半理论方法建立的裂纹长度与侵入载荷(或压头冲击速度)之间的关系。最后指出了上述研究结果在岩石力学参数测定及凿岩机具设计与研制中的一些应用。

Summarize and analyse a number of the experimental and theoretical results on glass, ceramics and rock fracture under static and dynamic indentations, describe in detail the fracture patten and process of rock under static and dynamic loads; introduce the relations between the length of the radial (median) and lateral cracks and indentation loads, and discuss the relation between the length of the radial crack ard impact speed of indenter. Finally, some applications of the research results to the design of drilling machinery and the measurement of few mechanic parameters of rock are suggested.