Assessing the Open Trenches in Screening Railway Ground-Borne Vibrations by Means of Artificial Neural Network

Table 4

Maximum and minimum values of displacements and velocities.

Site close to the trench
Soil type	Velocity dir. 𝑦 min max (m/sec)	Velocity dir. 𝑧 min max (m/sec)	Displacement dir. 𝑦 min max (m)	Displacement dir. 𝑧 min max (m)
Sand	0.13	0.09	0.00098	0.00056
	0.35	0.25	0.00252	0.00619
Clay	0.16	0.13	0.00564	0.00369
	0.29	0.48	0.01084	0.02509
Site vibration-sensitive
Soil type	Velocity dir. 𝑦 min max (m/sec)	Velocity dir. 𝑧 min max (m/sec)	Displacement dir. 𝑦 min max (m)	Displacement dir. 𝑧 min max (m)
Sand	0.052	0.035	0.00078	0.00009
	0.21	0.20	0.00198	0.00341
Clay	0.035	0.028	0.00177	0.00040
	0.27	0.30	0.01084	0.01714