Titlebook: Holistic Simulation of Geotechnical Installation Processes; Numerical and Physic Th. Triantafyllidis Book 2015 Springer International Publi

猛然一拉

978-3-319-38701-7Springer International Publishing Switzerland 2015

反復(fù)拉緊

Holistic Simulation of Geotechnical Installation Processes978-3-319-18170-7Series ISSN 1613-7736 Series E-ISSN 1860-0816

竊喜

Improved Integration of High-Cycle Accumulated Strain Using Hierarchical and EAS Finite Elements,t the fit of a given strain field . is difficult for the conventional elements (if no refinement is used). Usage of identical mesh for monotonic and cumulative deformations leads to numerical self-stresses in elements. More flexible elements are therefore examined. They can reduce the self-stresses considerably.

GUEER

凝乳

令人苦惱

Numerical Modelling of the Effective-Stress Evolution in Saturated Soil Around a Vibrating Pile Toerge number of cycles are calculated with an explicit cyclic model. The influence of soil permeability and relative density is investigated. It is shown that the cyclic soil deformation results in the reduction of the effective stress around the pile in spite of the pore pressure dissipation in the case of high soil permeability.

EXCEL

Demonstrator Experiments on Significant Effects During Pile Installation,s around the pile tip. For rough pile surfaces the occurrence of dilatancy effects in the pile-soil interface is shown. The localization of deformations in the post-peak phase is analyzed for monotonic and cyclic test paths. The influence of the pile driving mode on the evolution of stresses around the pile tip is demonstrated.

不利

,Vibro-Injection Pile Installation in Sand: Part I—Interpretation as Multi-material Flow, grain skeleton and the pore water. Part?1 in this series of papers is concerned with the mathematical and physical modeling of the multi-material flow associated with vibro-injection pile installation. This model is the backbone of a new multi-material arbitrary Lagrangian-Eulerian (MMALE) numerical method presented in Part?2.

Bravura

A Numerical Approach to the Solution of Dynamic Boundary Value Problems for Fluid-Saturated Solids,ity, provided that the user is able to establish the required coupling between the two problems. This approach has been implemented in the present paper with the computer program Abaqus/Standard using the dynamic analysis for one-phase media as a built-in procedure without the need to construct a user-defined finite element.