... ABSTRACT The soft clay surrounding the laterally-loaded offshore piles experiences remolding and softening under cyclic laterally loading. The spatial distribution of damage of soft clays is essential for the degradation of cyclic ultimate bearing capacity of the pile foundation. In this work...

... In coastal engineering construction, pile is an important form of foundation structure, such as pile foundation of cross-sea bridge, offshore wind power single pile foundation, high-piled wharf pile foundation and so on. In the eastern coastal area of China, there are deep silt and muddy soil and other...

... to the inherent scale effect. In this study, a time-dependent model of clear-water scour development around a pile foundation under a steady current is proposed. The scale expression of shear stress acting on sediment particles in the front of a circular pile is established based on the phenomenological theory...

..., the overall stiffness of the structure and the frequency of the main mode shape gradually decrease, but the change is small; the scour of pile foundation has the greatest impact on the force of the pile foundation, and has a greater impact on the internal force of the bottom of pylon; The pile foundation...

... the simulation of lateral cyclic movement of pile foundation. INTRODUCTION Offshore pile foundation is often subjected to the lateral cyclic loads such as wind, wave and current. Therefore, the lateral bearing capacity, especially the bearing capacity under lateral cyclic load, must be considered...

... the pile will lead to different degrees of pile erosion. When the pile foundation is scoured and exposed, it may cause the platform to tilt or even collapse, eventually threatening the safety of the offshore platform. In addition to strengthening the monitoring of the marine environmental load...

... penetration problem of jack-up drilling platform. soil layer bearing capacity egg shell foundation platform safety factor subsea system shear strength spud leg diameter punch-through risk experiment pile foundation upstream oil & gas penetration hard soil layer drilling equipment...

..., which reveal the efficiency and the promising potential of the optimised foundation concept for a more economic dimensioning of pile foundations and to increase their bearing capacity in non-cohesive soil at any moment after installation. INTRODUCTION The increasing use of renewable energies leads...

... frequency of the system. In seismic design, it is important to consider a bridge's dynamic behavior. Some of the most important dynamic characteristics of bridges include determining the natural frequency and mode. Regardless of whether the foundation is an individual pile foundation or pile group...

... resistance additional load raft vertical extension engineering model test bearing capacity pcp model experimental study micropile experimental study pile group pile foundation raft foundation loading test settlement foundation loading stage horikoshi Model Experimental...

... phenomenon single pile finite element method soil solid element pile foundation frequency engineering natural frequency element method bridge interaction reaction force scour depth loading Finite Element Frequency Analysis of Bridge Pier under the Soil-Pile Interaction H.-T. Hu, P.-J. Chen...

... ABSTRACT During the operation of the Jack-up rigs, spudcan foundations need to be installed to provide the necessary bearing capacity. The displacement of the soil caused by spudcan has a negative impact on adjacent pile foundation. In this paper, the applicability of the Coupled Eulerian...

... A construction management method of the bored pile foundation Hikaru Yoshida, Shohei Ishida DAIKEN SEKKEI, INC. Nagoya City, Aichi Prefecture, Japan Masao Okuda Okuda Construction Company Nagoya City, Aichi Prefecture, Japan Youji Nakane Showa Concrete Industries Co., Ltd. Nagoya City, Aichi...

... ABSTRACT A scaled horizontal axis tidal stream turbine with bottom-supported pile foundation was manufactured to experimentally investigate the near-wake in the recirculating water channel. Different inlet velocities and mounting heights conditions were measured at diverse points across...

... Abstract Bearing capacity of pile foundation is governed by only skin friction in frozen ground condition, while it is generally governed both by skin friction and end bearing capacity in typically unfrozen ground condition. Skin friction force, which arises from the interaction between pile...

... a conical tip. This resembles the geometry of finless torpedo anchor (D = 0.8~1.2 m) and cone penetrometer (in lower scale with D = 0.035~0.0437 m). This paper describes large deformation finite element (LDFE) analysis of the penetration of conical pile foundations in silica sand, identifying the evolving...

... model, apparent fixity model and coupled springs model were analyzed and derived. And a monopile was designed for the NREL 5- MW offshore wind turbine. The natural frequencies were calculated for the wind turbine with these simplified pile foundation models and a numerical model. From the results, it s...

... applied, where the rigid foundation is replaced with a pile foundation and the wave action is only considered. The nonlinear soil-pile interaction is taken into account using p-y and t-z curves. Internal forces and displacements for the two examined foundation cases are finally compared. Moreover, stress...

... ABSTRACT: This paper presents a practical methodology for optimizing pile group design of bridge foundation. A code-based method is used to design and analyze piled foundation. Then, a mathematical model for optimizing the problem by a real genetic algorithm is established with the direct...

... ABSTRACT A three-dimensional FEM model is proposed and verified with existing experimental data for simulating wave-induced transient and residual pore pressure responses in the soil around pile foundations. The numerical results show that the residual pore pressure tends to be amplified...