地下岩石结构的变形破坏是能量耗散与能量释放的综合结果。岩石结构内部储藏的可释放应变能和己耗散能的计算,涉及到在当时工况下岩石的卸荷弹性模量和泊松比,并与加载速度与载荷水平有关。该文在不同加载速度及不同载荷水平下,对岩石试件进行了单压加卸载实验,得到了卸荷弹性模量与泊松比、可释放应变能与耗散能的变化规律;进行了SHPB动态冲击实验,实测了试件内的总吸收能;实验分析结果为进一步对岩石结构进行可释放应变能与耗散能总量计算以及对岩石结构破坏程度进行预估计,提供了实验基础。 Deformation and destruction of underground rock structure is a comprehensive result of energy dissipation and energy release. The calculation of the releasable strain energy and dissipative energy stored inside the rock structure relates to the unloading elastic modulus and Poisson’s ratio of rock under the current conditions and relates to the loading speed and load level. In this paper, under different loading rates and different loading levels, uniaxial loading and unloading experiments were carried out on rock specimens, the unloading modulus of elasticity and Poisson’s ratio were obtained, and the variation of strain energy and dissipation energy was obtained. SHPB dynamic impact test was used to measure the total absorbed energy in the specimen. The experimental results provide experimental basis for further calculation of the total amount of releasable strain energy and dissipative energy of the rock structure and the pre-estimation of the rock structure damage.