## 2 Study Site and Data Description  
The Ras Limestone Mine of Shree Cement is located 30 km from Beauv City, Ajmer District, Rajasthan, India. The mining concession of 750.0 ha lies between longitude E 74 deg10'5.96'' to E 74 deg11''9.62'' and latitudes N 26 deg16'57.13'' to N 26 deg15'36.23'', on toposheet No. 45 J/3 & 45 J/4 of the survey of India.  
The projected production capacity of the mine is 25.3 million tons of limestone per year. The mining area is generally rocky with no overburden. A general strike of limestone at Ras Mine is North-South direction and dips in the eastern direction. Limestone has four major folds and one reverse fault. Limestone strata are massive, blocky and fractured in different portions of the deposit. HRB 150 (INDUS Make) drills are used for drilling hole diameter of 165 mm. ANFO with cast booster/slurry explosives and nonel detonators are used as explosives for blasting limestone. Figure 1 shows a blasting round view with Figure 2 showing the close-up view of blasted limestone at Shree Cement Ras Limestone Mine in India.  
As a part of this study, for the establishment of the various models described therein, a total of 101 sets of data were collected from the Ras limestone mine. The data collected consisted of parameters such as average depth (m), spacing (m), burden (m), powder factor (t/kg), the distance between the blasting point and the monitoring station (m), stemming length (m), a maximum charge per delay (kg) and PPV (mm/s). In the creation of the various models, the input parameters were average depth (m), spacing (m), burden (m),  
Figure 1: Blasting Round View.  
Figure 2: Close-up View of Blasted Limestone at Shree Cement Ras Limestone Mine in India.  
powder factor (t/kg), the distance between the blasting site and the monitoring station (m), stemming length (m), and maximum charge per delay (kg), while the output parameter was PPV. Table 4 shows the statistical description of the dataset collected.  
The values for the maximum charge per delay, stemming length, powder factor, spacing, burden, and average depth as statistically described in Table 2 were obtained from the daily blast plans of the mine. The distance values were calculated using the coordinates of the blasting face and monitoring locations obtained using a Global Positioning System (GPS). As shown in Figure 3, the PPV values were monitored using an Instantel Micromate ISEE Std/XM seismograph [74].  
It is worth mentioning that the mine has no permanent monitoring location due to different blasting positions. Thus, in monitoring the ground vibration due to blasting, the seismograph is positioned using pegs with an arrow on the geophone pointing towards the blast site. Figure 4 shows the portable monitoring station used by the mine. It is worth noting that the terrain of the Ras Limestone Mine is generally hilly.  
The correlation coefficient matrix shows how strong the interaction between the input parameters (average depth, burden, spacing, distance, powder factor, stemming length, and maximum charge per delay) and the measured PPV is, as shown in Table 5.  
\begin{table}
\begin{tabular}{c c c c c c c} \hline \hline
**Parameter** & **Category** & **Symbol** & **Units** & **Minimum** & **Average** & **Maximum** & **Standard** \\ \hline Average depth & AD & m & 7.76 & 11.88 & 14.46 & 1.64 \\ Burden & B & m & 4.5 & 4.54 & 5.5 & 0.15 \\ Spacing & S & m & 5.5 & 6.02 & 7 & 0.31 \\ Distance & Inputs & D & m & 250 & 1356.44 & 4150 & 906.21 \\ Powder factor & PF & t/kg & 5.38 & 6.30 & 7.83 & 0.44 \\ Stemming length & SL & m & 3 & 3.48 & 4 & 0.29 \\ Maximum charge per Delay & MC & kg & 73 & 129.49 & 180 & 22.94 \\ \hline Peak Particle Velocity & Output & PPV & mm/s & 0.7 & 4.08 & 15.19 & 3.16 \\ \hline \hline \end{tabular}
\end{table}
Table 4: Description of dataset parameters.  
Figure 3: Instantel Micromate ISEE Std/XM seismograph.