Considering viscoelastic saturated soil, The transient dynamic response of an elastic pile is studied. The pile-soil system is divided into thin layers, the control equations of the soil are solved respectively by using Laplace transform. Considering the mixed boundary-value conditions at the interface of pile and soil, expression is derived to describe the relationship between the inner force ...

The effects and vertical bearing capacity of two jacked piles in sand are still not well understood, the mechanism adjacent pile’s uplift caused by jacking pile a double system is especially unclear, but these facets important to stability pile. In this paper, series tests performed on model sand, where influences length driving speed were studied. results revealed that mainly relation influenc...

Offshore windfarms have recently emerged as a renewable energy solution. The effects of pile-driving and long-term impacts operational noises on fish chorusing still, however, remain largely unknown. In this study, we investigated the variations intensity duration during construction (2016) phases (2017–2018) windfarm at Eastern Taiwan Strait (ETS). At ETS, two types choruses (Types 1 2) were f...

But over the past 150 years, the noise levels in our oceans have increased significantly. This is due to human activity. The propeller noise from shipping has raised the baseline for low-frequency ambient ocean sound worldwide. There is noise produced by undersea construction, such as pile-driving (e.g., hammering posts into the seafloor, such as for docks or drilling platforms). Sonar is used ...