## 6 Conclusions  
This research starts from the measurement and characterization of the real three-dimensional pore structure of rocks and studies the microscopic pore structure characteristics through scanning X-ray diffraction, casting thin sections, high-pressure mercury intrusion, and CT rock-scanning experiments. Using a computer numerical simulation method, the rock microscopic pore structure is restored in the computer model, and the pore structure model seepage simulation study at the microscale is carried out. Exploring the characteristic of fluid seepage in rocks \begin{table}
\begin{tabular}{c c c c} \hline  & **Test Point 1** & **Test Point 2** & **Test Point 3** \\ \hline
1 day & 3.1 (3.50\%) & 6.8 (3.35\%) & 8.2 (1.96\%) \\
7 days & 2.4 (9.55\%) & 8.5 (0.61\%) & 7.9 (0.27\%) \\
15 days & 1.9 (0.14\%) & 7.1 (0.24\%) & 6.9 (0.11\%) \\
30 days & 2.5 (0.09\%) & 5.9 (0.10\%) & 7.5 (0.06\%) \\ \hline \end{tabular}
\end{table} 
Table 13: The water inflow (m\({}^{3}\)) at different measuring points and times after the drainage equipment was arranged (m\({}^{3}\)) (the value in brackets is the ratio per thousand of the inflow of water under this condition to the inflow of water without drainage equipment under the same conditions). \begin{table}
\begin{tabular}{c c c c} \hline  & **Test Point 1** & **Test Point 2** & **Test Point 3** \\ \hline
1 day & 886.6 & 2031.5 & 4178.2 \\
7 days & 251.3 & 13,894.1 & 29,206.4 \\
15 days & 13,245.4 & 29,987.3 & 62,759.6 \\
30 days & 26,467.9 & 60,026.3 & 125,347.5 \\ \hline \end{tabular}
\end{table} 
Table 12: Water inflow at different measuring points and times when drainage equipment was not arranged (m\({}^{3}\)). effectively resolves the groundwater drainage problem in the project and further contributes to the sustainable development of water resources. 1. The sandstone sample particles are mainly medium sand. The mineral composition of the rock sample contains mostly quartz, followed by feldspar, and the contents of cuttings, argillaceous base, and siliceous cement are lower. 2. Rock pores are mainly residual intergranular pores, intergranular dissolved pores, intragranular dissolved pores, mold pores, and a small number of microcracks. The main types of throats are flaky and curved throats, followed by constricted throats, and there is a small amount of bundle-shaped throats. The rock developed multiscale pore throats and the pore radius is large. The porosity of the sample is 16.35-22.31%. 3. The main distribution range of the pore radius is 30-80 \(\upmu\)m. The main distribution range of the throat radius is 4-14 \(\upmu\)m. The main distribution range of the pore coordination number is 6-17. The length of the throats is mainly distributed between 10 and \(\sim\)300 \(\upmu\)m. The pore shape factor is mainly distributed between 0.02 and \(\sim\)0.07. 4. For multidirectional seepage simulation studies, the seepage velocity is higher than that of the unidirectional flow. In the case of multidirectional seepage, fluids in multiple directions flow in series. Through multidirectional seepage simulation, one can also find the best seepage channel. 5. Through verification in an actual project, groundwater diversion based on the research results of this paper can greatly reduce the amount of groundwater influx. This shows that the previous research conclusions can effectively guide groundwater drainage. In other words, it is feasible to study the characteristic of rock seepage in the area first and then to divert groundwater. This method effectively solves the pollution and safety hazards caused by overflowing groundwater in underground resource mining and other projects, reduces the pollution caused by grouting projects, and helps clean the production of underground resource mining and other projects. Stored groundwater can increase resource utilization and contribute to the sustainable development of water resources. At the same time, the implementation of this method ensures the safety of the working space of underground resource mining and other projects.