## 6 Analysis of the Energy Characteristics Under Uniaxial Compression
It is evident that the increase in the lateral distance between the holes and fissures results in an intensification of the initial damage of the samples, and the initiation and propagation of cracks during deformation consume more energy, thereby significantly reducing the total \begin{table}
\begin{tabular}{c c c c c c c} \hline \hline \multirow{2}{*}{**Sample**} & \multirow{2}{*}{**Total Energy at the Peak Point (M/m\({}^{3}\))**} & **Elastic Strain** & **Dissipated Energy at the Peak Point (M/m\({}^{3}\))** & **Dissipated Energy at the Peak Point (M/m\({}^{3}\))** & **Total Energy at Failure (M/m\({}^{3}\))** \\ \hline \multirow{3}{*}{0 mm Specimen} & 0 cycle & 25.06 & 22.67 & 2.49 & 2.49 & 26.82 \\  & 10 cycles & 20.42 & 17.72 & 2.7 & 2.7 & 22.89 \\  & 20 cycles & 17.04 & 14.09 & 2.95 & 2.95 & 22.27 \\ \hline \multirow{3}{*}{5 mm Specimen} & 0 cycle & 23.47 & 19.45 & 4.02 & 4.02 & 25.12 \\  & 10 cycles & 18.15 & 17 & 1.15 & 1.15 & 22.17 \\  & 20 cycles & 16.7 & 13.33 & 3.37 & 3.37 & 19.32 \\ \hline \multirow{3}{*}{10 mm Specimen} & 0 cycle & 12.88 & 11.13 & 1.75 & 1.75 & 13.59 \\  & 10 cycles & 9.09 & 7.79 & 1.3 & 1.3 & 11.47 \\ \cline{1-1}  & 20 cycles & 8.08 & 6.54 & 1.54 & 1.54 & 8.37 \\ \hline \hline \end{tabular}
\end{table} 
Table 1: Energy density and total energy density at peak points. energy absorption capacity of the hole-fissured specimens. The distance between the holes and fissures has a significant weakening effect on the energy absorption capacity of six of the rock samples. Figure 11 illustrates the variations in energy parameters at the peak point as a function of cycles. Both the total input energy and the stored elastic strain energy at the peak point progressively decrease as the number of cycles increases. Initially, the peak elastic strain energies for the three types of samples were 22.67 MJ/m\({}^{3}\), 19.45 MJ/m\({}^{3}\), and 11.13 MJ/m\({}^{3}\). After 20 dry-wet cycles, these values dropped to 14.09 MJ/m\({}^{3}\), 13.33 MJ/m\({}^{3}\), and 6.54 MJ/m\({}^{3}\), representing reductions of 37.8%, 31.5%, and 59.32%, respectively. The peak elastic strain energy reflects the maximum energy storage capacity of the rock mass and its ability to resist damage. However, the rock mass's energy storage capacity is significantly compromised by the damage induced by the cycles. Moreover, the dissipated energy at the peak point first declines and subsequently rises as the count of wetting-drying cycles rises. This trend is attributed to the continuous dissolution of the adhesive material between the mineral particles in the sample due to the cycles, which weakens the sample's resistance to sliding and fracturing. Consequently, during the loading process, internal slip and fracture events become easier. As the number of cycles rises, the internal damage and deterioration of the sample intensity. Throughout the distortion of hole-fissured rock formations, stress focus happens at the ends of the holes and at the tips of fissures, resulting in the beginning and spread of fractures. This procedure wastes power, which is subsequently transformed to the surface  
Figure 11: Diagram of the changes in various energies at the peak point: (**a**) specimens with a lateral distance of 0 mm; (**b**) specimens with a lateral distance of 5 mm; (**c**) specimens with a lateral distance of 10 mm. power needed for fracture spread. The prefabricated hole-fissure framework directs the power discharge, resulting in it becoming more focused and swifter. To reflect the energy storage and dissipation ratio relationship of the specimen throughout the entire process of force application, deformation, and failure, the elastic energy dissipation ratio K is defined as the ratio of dissipated energy to elastic strain energy [43]:  
\[K=\frac{U_{d}}{U_{e}} \tag{8}\]  
Figure 12 illustrates the correlation between the elastic energy dissipation ratio K and the stress-strain curve of the 0 mm sample under uniaxial loading after wetting-drying cycling.