Effect of Damping Ditch in Dynamic Compaction

Damping ditch was dug beside the underground pipeline so as to prevent housing from damage and reduce displacement of underground pipelines caused by dynamic vibration. Different damping ditches were simulated and field measurement was tested. Research shows that vibration and squeezing effect cannot be neglected, and damping ditch can decrease the vibration and squeezing effect. The deeper and nearer to the housing the damping ditch is, the better the damping effect is. The underground pipelines displacement is slight, when the damping ditch is between underground pipelines and tamping points and much closer to the former. Otherwise, if the damping ditch is considerably closer to the tamping points, the displacement is comparatively large.