With cyclic high in-situ stress, the rock will damage and lead to serious engineering geological disasters. A property of rock failure is the rock damage evolution driven by energy. It is necessary to study the energy dissipation and damage evolution of rocks under cyclic loading with high in-situ stress. In this study, a rock mechanics experiment involving different numbers of loading and unloading cycles is carried out on granite samples with different confining pressures. Rock damage and deformation laws are determined. Results show that: in the process of cyclic, the hysteresis area of axial deformation decreases with increasing of cycles. Under the same confining pressure, the total input energy and dissipated energy negatively correlate with the number of cycles, and the elastic strain energy increases slowly with increasing cycle number during unloading. The dissipated energy increment between second cycle and first cycle is the smallest, after which it gradually stabilizes. The average energy consumption ratio positively linearly correlates with confining pressure, which is consistent with the change trend of average total energy and average elastic strain energy. The increment of porosity increases with the increase of confining pressure and the cumulative dissipated energy is positively correlated with the cumulative porosity.

在周期性的高地应力作用下，岩石将损坏并导致严重的工程地质灾害。岩石破坏的一个特性是能量驱动的岩石破坏演化。有必要研究高地应力下循环荷载作用下岩石的能量耗散和损伤演化。在这项研究中，对具有不同围压的花岗岩样品进行了涉及不同数量的加载和卸载循环的岩石力学实验。确定岩石的破坏和变形规律。结果表明：在循环过程中，轴向变形的滞后面积随循环次数的增加而减小。在相同的围压下，总输入能量和耗散能量与循环次数呈负相关，在卸载过程中，弹性应变能随着循环次数的增加而缓慢增加。第二个循环和第一个循环之间的耗散能量增量最小，此后逐渐稳定。平均耗能比与围压呈线性正相关，与平均总能量和平均弹性应变能的变化趋势一致。孔隙度的增加随围压的增加而增加，累积的耗散能量与累积的孔隙度呈正相关。这与平均总能量和平均弹性应变能的变化趋势一致。孔隙度的增加随围压的增加而增加，累积的耗散能量与累积的孔隙度呈正相关。这与平均总能量和平均弹性应变能的变化趋势一致。孔隙度的增加随围压的增加而增加，累积的耗散能量与累积的孔隙度呈正相关。