中文摘要：

为探求岩石加载方式与能量演化之间存在的规律，对岩石的破裂过程进行模拟研究，通过提出一种量化岩石能量损伤的新参数——岩石能量损伤参数D，利用FLAC。的二次开发，对岩石破碎过程中各部分可释放弹性能、耗散能和总能量进行分析。研究表明，岩样破裂所需能量随着围压的增大成上凹增长曲线；岩石能量损伤参数D达到阚值时，岩石开始发生破坏，该阈值与围压的大小没有相关性。研究成果对进一步分析能量与岩石破坏强度的关系具有参考意义。

英文摘要：

In order to explore method and energy evolution, the law between rock loading rock failure process was simu- lated and studied. Then a new energy damage parameter D was proposed to quantify the energy damage of rock. And the releasable elastic energy, dissipation energy and total en- ergy of each part in the process of rock breaking were ana- lyzed by the secondary development of FLAC3D. The results showed that the energy of rock breaking grown as a concave curve with the increase of confining pressure. The rock began to break when the rock energy damage parameter D reached to the threshold. And there was no correlation between the threshold and the confining pressure. The results had refer- ence to further analyze the relationship between energy and strength of rock damage.