Fig 1.
The idea of the active wave generator.
Fig 2.
Considered domain with the vibration source and a wave generator.
a. b. The harmonic excitation force. c. The impact excitation force.
Table 1.
Dynamic properties of different soil deposits.
Fig 3.
Vertical displacement component uz [m] for the ground surface, for t = 0.21 s; (a) without the wave generator, (b) with the application of the wave generator.
Fig 4.
Nondimensional amplitude mitigation factor for the ground surface; (a) for the vertical displacement component uz; (b) for the horizontal displacement component ux; and (c) for the horizontal displacement component uy.
Fig 5.
Nondimensional amplitude mitigation factor for the points located 5 m below the ground surface; (a) for the vertical displacement component uz; (b) for the horizontal displacement component ux; and (c) for the horizontal displacement component uy.
Fig 6.
Nondimensional amplitude mitigation factor in the vertical cross-section, for the points located in the middle of the analysed area; (a) for the vertical displacement component uz; (b) for the horizontal displacement component ux; and (c) for the horizontal displacement component uy.
Fig 7.
Velocities at the foundation level, next to the vibration source; grey line–without the wave generator; black line–after the application of the wave generator; (a) for the vertical velocity component (z-direction); (b) for the horizontal velocity component (x-direction); (c) for the horizontal velocity component (y-direction).
Fig 8.
Velocities in the middle of the highest floor (Point 1, Fig 2); grey line–without the wave generator; black line–after the application of the wave generator; (a) for the vertical velocity component (z-direction); (b) for the horizontal velocity component (x-direction); (c) for the horizontal velocity component (y-direction).
Table 2.
Reduction effect of displacements for the point located on the highest floor (Point 1 –Point 4 in Fig 2).
Fig 9.
Vertical displacement component uz [m] for the ground surface, for t = 0.15 s; (a) without the wave generator, (b) with the application of the wave generator.
Fig 10.
Nondimensional amplitude mitigation factor for the ground surface; (a) for the vertical displacement component uz; (b) for the horizontal displacement component ux; and (c) for the horizontal displacement component uy.
Fig 11.
Nondimensional amplitude mitigation factor for the points located 5 m below the ground surface; (a) for the vertical displacement component uz; (b) for the horizontal displacement component ux; and (c) for the horizontal displacement component uy.
Fig 12.
Nondimensional amplitude mitigation factor in vertical cross-section, for the points located in the middle of the analyzed (y = 35 m); (a) for the vertical displacement component uz; (b) for the horizontal displacement component ux; and (c) for the horizontal displacement component uy.
Fig 13.
Velocities at the foundation level, next to the vibration source; gray line–without the wave generator; black line–after the application of the wave generator; (a) for the vertical velocity component (z-direction); (b) for the horizontal velocity component (x-direction); (c) for the horizontal velocity component (y-direction).
Fig 14.
Velocities in the middle of the highest floor (Point 1, Fig 2); gray line–without the wave generator; black line–after the application of the wave generator; (a) for the vertical velocity component (z-direction); (b) for the horizontal velocity component (x-direction); (c) for the horizontal velocity component (y-direction).
Table 3.
Reduction effect of displacements for the point located on the highest floor (Point 1 –Point 4 in Fig 2).