## 5 Results and Discussion
### All Soils
\begin{table}
\begin{tabular}{c c c c c} \hline \hline
**Author** & **All Soils** & **Sand** & **Silt** & **Clay** \\ \hline [PERSON] (1966) [52] & V\({}_{\rm s}\) = 19N\({}^{0.6}\) & - & - & - \\ [PERSON] (1970) [10] & - & V\({}_{\rm s}\) = 31.7N\({}^{0.54}\) & - & - \\ [PERSON] and [PERSON] (1970) [8] & V\({}_{\rm s}\) = 76N\({}^{0.33}\) & - & - & - \\ [PERSON] and [PERSON] (1970) [9] & V\({}_{\rm s}\) = 84N\({}^{0.31}\) & - & - & - \\ [PERSON] et al. (1972) [11] & - & V\({}_{\rm s}\) = 87.2N\({}^{0.36}\) & - & - \\ [PERSON] (1972) [12] & V\({}_{\rm s}\) = 92.1N\({}^{0.337}\) & - & - & - \\ [PERSON] and [PERSON] (1973) [13] & V\({}_{\rm s}\) = 81.4N\({}^{0.39}\) & - & - & - \\ [PERSON] et al. (1975) [53] & V\({}_{\rm s}\) = 89.9N\({}^{0.341}\) & - & - & - \\ [PERSON] (1977) [14] & V\({}_{\rm s}\) = 91N\({}^{0.337}\) & V\({}_{\rm s}\) = 80.6N\({}^{0.331}\) & - & V\({}_{\rm s}\) = 80.2N\({}^{0.292}\) \\ [PERSON] et al. (1978) [54] & V\({}_{\rm s}\) = 85.35N\({}^{0.348}\) & - & - & - \\ [PERSON] and [PERSON] (1981) [16] & V\({}_{\rm s}\) = 61.4N\({}^{0.5}\) & - & - & - \\ [PERSON] and [PERSON] (1982) [15] & V\({}_{\rm s}\) = 96.9N\({}^{0.314}\) & - & - & - \\ [PERSON] et al. (1983) [55] & - & V\({}_{\rm s}\) = 56.4N\({}^{0.5}\) & - & - \\ [PERSON] and [PERSON] (1983) [18] & - & V\({}_{\rm s}\) = 100.5N\({}^{0.29}\) & - & - \\ [PERSON] and [PERSON] (1985) [56] & - & V\({}_{\rm s}\) = 152 + 51N\({}^{0.27}\) & - & - \\ [PERSON] et al. (1983) [57] & V\({}_{\rm s}\) = 97N\({}^{0.314}\) & - & - & - \\ [PERSON] (1987) [58] & V\({}_{\rm s}\) = 116 (N + 0.3185)\({}^{0.6}\) & - & - & - \\ [PERSON] et al. (1989) [59] & - & V\({}_{\rm s}\) = 125N\({}^{0.3}\) & - & - \\ [PERSON] (1990) [60] & - & V\({}_{\rm s}\) = 57.4N\({}^{0.49}\) & V\({}_{\rm s}\) = 105.64N\({}^{0.319}\) & V\({}_{\rm s}\) = 114.43N\({}^{0.31}\) \\ [PERSON] (1995) [23] & V\({}_{\rm s}\) = 107.6N\({}^{0.36}\) & - & - & V\({}_{\rm s}\) = 76.55N\({}^{0.445}\) \\ [PERSON] et al. (1981) [61] & V\({}_{\rm s}\) = 121N\({}^{0.27}\) & - & - & V\({}_{\rm s}\) = 114N\({}^{0.31}\) \\ [PERSON] et al. (1992) [21] & V\({}_{\rm s}\) = 76.2N\({}^{0.24}\) & - & - & - \\ [PERSON] et al. (1992) [62] & - & V\({}_{\rm s}\) = 162N\({}^{0.17}\) & - & - \\ [PERSON] et al. (1995) [24] & - & V\({}_{\rm s}\) = 100.7N\({}^{0.24}\) & - & - \\ [PERSON] (1995) [63] & V\({}_{\rm s}\) = 32.8N\({}^{0.51}\) & - & - & - \\ [PERSON] (1996) [26] & V\({}_{\rm s}\) = 51.5N\({}^{0.516}\) & - & - & - \\ [PERSON] (1996) [27] & - & V\({}_{\rm s}\) = 175 + (3.75N) & - & - \\ [PERSON] et al. (1997) [64] & V\({}_{\rm s}\) = 22N\({}^{0.85}\) & - & - & - \\ [PERSON] et al. (1999) [22] & - & V\({}_{\rm s}\) = 145 (N\({}_{60}\))\({}^{0.178}\) & - & V\({}_{\rm s}\) = 132 (N\({}_{60}\))\({}^{0.271}\) \\ [PERSON] et al. (2001) [65] & V\({}_{\rm s}\) = 68.3N\({}^{0.292}\) & - & - & - \\ [PERSON] et al. (2002) [66] & - & - & V\({}_{\rm s}\) = 22N\({}^{0.77}\) & V\({}_{\rm s}\) = 27N\({}^{0.73}\) \\ [PERSON] and [PERSON] (2007) [28] & V\({}_{\rm s}\) = 90N\({}^{0.309}\) & V\({}_{\rm s}\) = 90.82N\({}^{0.319}\) & - & V\({}_{\rm s}\) = 97.89N\({}^{0.269}\) \\ Hasancebi and Ulusay (2007) [28] & V\({}_{\rm s}\) = 104.8 (N\({}_{60}\))\({}^{0.26}\) & V\({}_{\rm s}\) = 131 (N\({}_{60}\))\({}^{0.205}\) & - & V\({}_{\rm s}\) = 107.6 (N\({}_{60}\))\({}^{0.237}\) \\ [PERSON] (2009) [30] & V\({}_{\rm s}\) = 58N\({}^{0.39}\) & V\({}_{\rm s}\) = 73N\({}^{0.33}\) & V\({}_{\rm s}\) = 60N\({}^{0.36}\) & V\({}_{\rm s}\) = 44N\({}^{0.48}\) \\ [PERSON] et al. (2010) [35] & V\({}_{\rm s}\) = 95.64N\({}^{0.301}\) & V\({}_{\rm s}\) = 100.53N\({}^{0.265}\) & - & V\({}_{\rm s}\) = 89.3N\({}^{0.358}\) \\ [PERSON] (2014) [67] & V\({}_{\rm s}\) = 105.03N\({}^{0.286}\) & - & - & - \\ \hline \hline \end{tabular}
\end{table} 
Table 2: Existing correlation between shear wave velocity and standard penetration resistance. It can be observed that the correlation by [PERSON] (1966) [52] can be used as the lower bound, while the work of [PERSON] (1995) [23] and [PERSON] et al.