Skip to main content

Table 3 Cavity size and sensing distance

From: An impact echo method to detect cavities between railway track slabs and soil foundation

Cavity size (cm) Y (cm) X (cm) Sensing distance
t B L cm cm cm cm
5 5 5 0 5 10 15 20
1.25 5 5 0 5 10 15 20
0.75 5 5 0 5 10 15 20
0.3 5 5 0 5 10 15 20
1 40 40 0 5 10 15 20
1.5 40 40 0 5 10 15 20