## 2 Dataset
### Analysis of Dataset  
After analyzing the hydrogeological conditions, weekly construction reports, on-site monitoring data, and the surrounding environment, the target value (horizontal displacement of the enclosure) and the critical characteristic factors are described in Table 1. They were derived to assess the stability and deformation of the pit enclosure. The characteristic factors were generally divided into two categories: dynamic and static factors. Table 2 shows the following statistical metrics for the dataset: mean, standard deviation (Std. ), minimum value (Min. ), maximum value (Max. ), and three percentiles associated with the data samples in the training set (25%, 50%, and 75%). For HD, the mean is small, the standard deviation is large, and the range between the minimum and maximum values is large, meaning that the distribution of the data may be relatively spread out and there may be outliers or anomalies. The 25 th percentile is 0.21, the 50 th percentile is 6.37, and the 75 th percentile is 26.99. Most of the data is concentrated between 0.21 and 26.99, but some relatively large values make the mean deviate, and the overall statistical results are consistent with the HD data obtained from multiple enclosure horizontal displacement-monitoring sites. The mean values deviate, and the overall statistics are consistent with the HD data. The ACT has a low mean but a large standard deviation, which could mean that there are some data points with relatively high values. The ST is relatively stable, with the mean close to the median and a small standard deviation. The data is relatively stable with most of the values around two indicating that the geotechnical classification of the area where the pit was constructed is mostly clay. There is a large variation between the mean and standard deviation of the AF, which may have extreme values or be unevenly distributed. The statistics of the support axial forces were collected continuously from the construction process, and the gradual increase of the support axial forces at each monitoring point is consistent with the results of the analysis based on the statistical data. For SS2 (mm), BS (mm), SS1 (mm), and PS (mm), the mean and median of these indicators are relatively close to each other. But, the standard deviation is large, and there may be unevenness in the distribution of the data. The quartiles of these indicators show that the data are relatively dispersed, with no clear tendency to concentrate, but no extreme differences either. The deep foundation-pit enclosure structure was an essential component of subway construction. The horizontal displacement of the enclosure structure was monitored to track the relative movement or offset of the enclosure structure elements, such as supporting walls \begin{table}
\begin{tabular}{c c c c c c} \hline \hline
**Factory** & **Avg.** & **Std.** & **Min.** & **Max.** & **25\%** & **50\%** & **75\%** \\ \hline HD (mm) & 13.85 & 19.82 & \(-\)38.67 & 74.58 & 0.21 & 6.37 & 26.99 \\ D (m) & \(-\)11.49 & 6.45 & \(-\)24 & \(-\)1 & \(-\)17 & \(-\)11 & \(-\)6 \\ ACT (day) & 5.76 & 7.04 & 0 & 22 & 0 & 0 & 13 \\ ST & 1.99 & 0.68 & 1 & 4 & 2 & 2 & 2 \\ WL (mm) & \(-\)31,709.3 & 588.75 & \(-\)32,734 & \(-\)31,071 & \(-\)32,172 & \(-\)31,456 & \(-\)31,309 \\ EL (mm) & 421,114 & 303,140 & 232,410 & 2,735,224 & 232,410 & 352,410 & 479,946 \\ WBP & 0.33 & 0.47 & 0 & 1 & 0 & 0 & 1 \\ AF (KN) & 457.68 & 1519.62 & \(-\)122.71 & 17,518.1 & 0 & 0 & 467.5 \\ SS2 (mm) & \(-\)14.85 & 12.49 & \(-\)29.15 & 6 & \(-\)27.23 & \(-\)17 & \(-\)0.57 \\ BS (mm) & \(-\)0.99 & 3.94 & \(-\)12.43 & 9.82 & \(-\)3.55 & \(-\)0.69 & 1.33 \\ SS1 (mm) & 2.34 & 2.68 & \(-\)3.33 & 10.12 & 0 & 1.97 & 4.27 \\ PS (mm) & \(-\)13.22 & 14.9 & \(-\)28.99 & 20.07 & \(-\)27.4 & \(-\)17.33 & 0.79 \\ CS (mm) & 1.04 & 2.11 & \(-\)5.43 & 0 & 0 & 2.0 & 13.98 \\ \hline \hline \end{tabular}
\end{table} 
Table 2: Statistical description of the dataset.