破裂和摩擦滑动被认为是涉及脆性破坏的现象,而脆性破坏前一般有小裂隙形成。在非水饱和岩石中,这些小裂隙的分布、形状和大小决定了岩石破坏前的物理性质变化。提出一个模式,认为受应力岩石内小裂隙的时空分布、形状和大小取决于变形速率和挥发性物质的含量。当一种岩石受力超过它的极限破坏应力的 Rupture and frictional sliding are considered to be involved in the phenomenon of brittle failure, whereas brittle failure generally precedes the formation of small fractures. In non-water-saturated rocks, the distribution, shape, and size of these small fractures determine the physical properties of the rock prior to failure. A model was proposed to consider the spatiotemporal distribution, shape, and size of small cracks in stressed rock depending on the rate of deformation and the amount of volatile matter. When a rock is stressed beyond its limit, the stress is