...Zhenya Li; Yuxiang Xie; Yan Chen; Cun Zhang; Li Wan In this study, the vertical vibration of a single pile under construction disturbance in a transversely isotropic soil is examined. The formulation of the soil’s governing equation is based on the constitutive relations of a transversely isotropic...

...-use rights only ground improvements limit equilibrium methods pseudo-dynamic method random field of initial phase random field of PGA risk & probability analysis scale of fluctuation seismic slope stability slopes–stabilisation vibration Shandong Provincial Natural Science...

... to consider the construction disturbance during pile installation. Then, an improved analytical solution for the torsional vibration of the tapered pile considering the circumferential support of the surrounding soil is established by solving the equations for the soil and pile. Based on the solution...

... of radial effective soil stresses due to impact driving could be reproduced. The tests showed that the same effects could be evoked by free vibratory driving if certain vibration parameters were met. Increased soil stresses may be beneficial for the lateral or axial pile behaviour, but can cause problems...

...K. Rainer Massarsch, Dr Tech A mechanism to explain pile shaft resistance during vibratory driving is discussed. One hypothesis is that horizontally oscillating stresses temporarily reduce shaft resistance. Vibration measurements were conducted in medium-dense to dense sand during vibratory driving...

...Tugen Feng, PhD; Zhenya Li, PhD; Jian Zhang, PhD This study focuses on the influence of the pile end soil on the torsional vibration of a pile based on a fictitious soil pile model considering stress diffusion. The pile end soil is simulated as a cone-shaped fictitious soil pile whose parameters...