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

Figure 9

Normalized displacement amplitudes meshes behind the isolation system under different row-separations of tubular piles (𝑏_𝑠=0.9𝑎_𝑠,𝑠_𝑝=3.0𝑎_𝑠,𝑚=4,𝑁=8).

(a) ℎ=0,𝐺_𝑟=10

(b) ℎ=3.0𝑎_𝑠,𝐺_𝑟=1000

(c) ℎ=3.5𝑎_𝑠,𝐺_𝑟=10

(d) ℎ=5.0𝑎_𝑠, 𝐺_𝑟=1000