In this paper

the full-scale test method is used to study the vibration isolation effect of different types of barriers (continuous and discontinuous) filled with different materials (ceramsite and sand). Meanwhile

to expand the experimental research

numerical research is supplemented. Therefore

to obtain the dynamic characteristics of the site as the basis of numerical research

the surface wave spectrum analysis (MASW) test was carried out on the original site before the experimental research. Then

to acquire the transfer function and attenuation decibels of the fixed point of the site by experimental research

the program is compiled to calculate the spatial distribution field of acceleration component through numerical method. After combining the above two methods

it is found that: Influence of vibration isolation material: at low frequency

the difference between them is not very obvious; at the intermediate frequency

the difference between the two begins to appear and the vibration isolation performance of ceramsite is close to that of open trench; at high frequency

the influence of material is difficult to show due to the obvious damping effect of soil. In conclusion

the vibration isolation effect of ceramsite is much better than that of sand

and the overall performance is close to the open trench. Influence of barrier type: when the frequency is 30 Hz

the barrier has little effect

and the spatial distribution of components takes the vibration source as the center

showing a circular distribution; When the frequency is 50 Hz

the annular distribution is broken by the barrier and its shape changes from annular to oval

while the short side points to the direction of the wave front

so that the component of a certain intensity is rejected in the rear area of the barrier; When the frequency is 80 Hz

the soil damping effect is obvious

so that the difference between them is not obvious. In conclusion

the vibration isolation effect of continuous barrier is much better than that of discontinuous barrier. Suggestions on the use of materials and barrier types: if general materials are used

both continuous and discontinuous barriers can be used considering factors such as cost. However

using high damping materials and considering the effect of vibration isolation

the continuous barrier is better.