row

Soil type

record

Tunnel shape

Circular (CT)

Horseshoe (HT)

Rectangular (RT)

1

1

El Centro

−14.09

−7.60

−18.29

2

1

San Fernando

−39.18

−54.76

−40.57

3

1

San Luis

−24.15

−33.71

−19.99

4

1

El Centro

−2.02

−1.76

−2.66

5

2

San Fernando

−8.33

−7.99

−11.37

6

2

San Luis

−9.24

−8.94

−11.77