The vibration induced by human activities such as rail traffic

power machine

blast construction and pile driving could seriously influence the normal use of adjacent buildings

the production and use of precision instruments

and the normal production and life of human beings. The control of environmental vibration has become a research focus of soil dynamics. In this paper

a newly designed combined vibration isolation barrier

i.e.

wave impeding block (WIB) with incorporation of Duxseal (DXWIB)

is proposed to reduce the ground vibrations

and the isolation performance is evaluated by field experiment under harmonic vertical excitation within 0–3 s. Through a set of tests

the amplitude and mean value of ground vibration acceleration and displacement with different embedded depths

DXWIB thicknesses

excitation forces and excitation frequencies are obtained and compared. The corresponding curves of amplitude attenuation ratio are drawn. The test results show that: compared with vibration in the horizontal direction

the isolation effect of DXWIB on ground vertical vibration is better. The vibration isolation efficiency of DXWIB barrier varies unevenly with the distance. When DXWIB is embedded in the foundation

the attenuation coefficient of surface displacement amplitude is less than 1. Compared with the influence factors such as DXWIB thickness

excitation force and excitation frequency

the embedment depth of DXWIB has the most significant influence on the vibration isolation effect

and there is a best buried depth and a critical thickness. DXWIB can improve the characteristics of WIB only for low-frequency vibration damping below 10 Hz

and increase the frequency bandwidth of vibration damping. From the experimental data

it has good vibration isolation effect at 5–70 Hz.