Ground Vibration Isolation of Multiple Scattering by Using Rows of Tubular Piles as Barriers

Figure 14

Contours of normalized displacement amplitudes by double-rows of tubular piles (rectangular arrangement, 𝑏_𝑠=0.9𝑎_𝑠, 𝑠_𝑝=6.0𝑎_𝑠, ℎ=3.0𝑎_𝑠, 𝐺_𝑟=10, 𝑚=4, 𝑁=8).

(a) Incident SH waves (𝜂_𝑠𝑠=0.4)

(b) Incident P waves (𝜂_𝑠𝑠=0.8,   𝜂_𝑝𝑠=0.45,   𝜈_𝑝=0.20,   𝜈_𝑠=0.25)