Dynamic rock testing system with hydrostatic confinement

采矿、水力压裂和地震中的岩石破坏是高度瞬态的过程，其中载荷在几分之一秒甚至几微秒内施加。研究岩石和岩石类材料响应的传统方法包括测量它们在静态载荷条件下的响应，并将这些结果外推到动态载荷。这是非常不令人满意的，因为静态和动态测量之间没有一对一的相关性。岩石断裂韧度的实验室静态测量值比现场测量值低几个数量级。因此，开发改进的方法用于在类似于地下的环境中动态测量岩石破裂是至关重要的。

Rock failures in mining, hydrofracturing, and earthquakes are highly transient processes where loads are applied in a fraction of a second, or even microseconds. Traditional approach to studying the response of rock and rock-like materials involves measurement of their response under static loading conditions, and extrapolation of these results to dynamic loads. This is highly unsatisfactory as there is no one-to-one correlation between static and dynamic measurements. The laboratory static measurements of rock fracture toughness are orders of magnitude lower than those determined from field data. It is thus paramount to develop improved methods for dynamic measurement of rock fractures in a environment similar to that of underground.