Holistic Simulation of Geotechnical Installation Processes: Benchmarks and Simulations

255 Pages·2016·14.829 MB·English

by  Theodoros Triantafyllidis (eds.)

Lecture Notes in Applied and Computational Mechanics 80
Theodoros Triantafyllidis Editor
Holistic Simulation
of Geotechnical
Installation
Processes
Benchmarks and Simulations
Lecture Notes in Applied and Computational
Mechanics
Volume 80
Series editors
Friedrich Pfeiffer, Technische Universität München, Garching, Germany
e-mail: [e-mail]
Peter Wriggers, Universität Hannover, Hannover, Germany
e-mail: [e-mail]
About this Series
This series aims to report new developments in applied and computational
mechanics—quickly,informallyandatahighlevel.Thisincludesthefieldsoffluid,
solid and structural mechanics, dynamics and control, and related disciplines. The
applied methods can be of analytical, numerical and computational nature.
More information about this series at http://www.springer.com/series/4623
Theodoros Triantafyllidis
Editor
Holistic Simulation
of Geotechnical Installation
Processes
Benchmarks and Simulations
123
Editor
Theodoros Triantafyllidis
Karlsruhe Institute of Technology (KIT)
Karlsruhe, Baden-Württemberg
Germany
ISSN 1613-7736 ISSN 1860-0816 (electronic)
Lecture Notesin AppliedandComputational Mechanics
ISBN978-3-319-23158-7 ISBN978-3-319-23159-4 (eBook)
DOI 10.1007/978-3-319-23159-4
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Preface
In a previous textbook with similar title, the midterm results of the research group
GEOTECH on the numerical and physical modeling of geotechnical installation
processes have been presented. In this volume emphasis is given to the simulation
strategies of the benchmark problems. The holistic simulation of geotechnical
installationprocessestakesintoaccounttheentireinstallationofstructuralelements
into the ground for foundation purposes and considers the serviceability of nearby
structuressuchasexcavationpitsupportingsystemsoradjacentbuildings.Itrefers
to the nonlinear structure–soil–structure interaction.
Fromtheengineeringpractice,itiswell-knownthattheinstallationprocessitself
maycauselargerdeformations thantheexcavation ordewatering ofaconstruction
pit on its shoring or the neighboring buildings. The assessment of the deformation
is,ontheonehand,requiredfromthecodes(EC7)orregulationsbutontheother
handthehigh-qualitypredictionbasedonrealisticandprovenincrementally,highly
nonlinearconstitutivemodelsforthesoilsundercyclic/dynamicconditionsandthe
respective simulation tools do not offer up to now the required prediction quality.
The research group GEOTECH is dedicated to this challenging issue with the
performance offundamental andappliedresearchstarting fromthe modificationof
existing or even new development of constitutive modeling for the soil behavior,
the development of new type contact elements for the cyclic/dynamic structure–
soil–structure interaction and the provision of new simulation techniques or
appropriate tools for the description of the vibro-installation of piles.
The research group is organized and operating at three levels:
(cid:129) benchmarking projects with element-like and large-scale model tests for the
calibration and validation of the developed numerical models
(cid:129) theoretical fundamental research for the development of high-quality constitu-
tive soil models and contact formulations in combination with efficient
numerical implementations and algorithms
(cid:129) application of the developed theoretical models to boundary value problems
with parametric studies of respective geotechnical installation processes and
v
vi Preface
recommendations for further use of the numerical models in practice as well as
for the practical optimization of these processes.
Furthermore the research group provides high-quality benchmarks using phys-
ical modeling and measurements on real construction sites where the installation
processes of vibro-injected piles took place and produced unexpected large
deformationsontheshoringwall(diaphragmwall).Theprovisionofrealdatafrom
construction sites and those from experimental results on physical model tests
related to the pure pile installation process in combination with the developed
numericaltoolsoffertotheinterestedreadersarichsourceofvaluableinformation.
Theprovidedinformationcanserve asabasistotestnewlydevelopedconstitutive
models or simulation tools developed elsewhere or as benchmark to check the
validity or accuracy offurther experimental investigations in future.
Theyoungresearches,whojoinedthisgroup,obtainedanincredibleknowledge
in testing and simulation techniques enabling them to achieve a higher level of
education and to widen their view with the exchange of experience between the
different disciplines. Therefore in this volume, the first authors in all contributions
from the research group are not the principal investigators but the young
well-educated researchers, who just obtained or are in a process to obtain their
Ph.D. degree.
The editor likes to thank all his colleagues (Prof. Ehlers, Prof. Wriggers,
Prof. Savidis, Prof. Rackwitz, Prof. Hettler) and coworkers (Dr. Niemunis,
Dr. Osinov, Dr. Huber) for their engagement within the research group and their
valuable contributions as well as their extreme efforts to make things possible
withinthe different disciplines inorder toachieve thehigh scientific targets within
the different projects.
Thecontributionsofourinvitedspeakers(Prof.A.WittleandProf.T.Schanz)in
the final GEOTECH Workshop (7 and 8 December 2015 in Karlsruhe) are very
muchappreciatedandarealsoincludedinthisvolumeduetotheirrelevancetothe
scientific targets of the group.
Furthermore I would like to express my thanks to Mrs. Meininger for the
organization of all the workshops of the research group GEOTECH and her
engagement to make those events pleasant, as well as Mr. Vogelsang for the col-
lection of the manuscripts and the help given to the editor prior to publication of
this textbook.
Finally,allofusliketoexpressourdeepgratitudetoGermanResearchCouncil
(DFG) for the generous financial support of this very interesting and challenging
research topic in geotechnical engineering.
Karlsruhe Theodoros Triantafyllidis
August 2015
Contents
Requirements, Concepts, and Selected Results for Model
Tests on Pile Penetration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
J. Vogelsang, G. Huber and T. Triantafyllidis
Interpretation of Vibratory Pile Penetration Based on Digital
Image Correlation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
J. Vogelsang, G. Huber, T. Triantafyllidis and T. Bender
Dynamic Problem for the Deformation of Saturated Soil
in the Vicinity of a Vibrating Pile Toe . . . . . . . . . . . . . . . . . . . . . . . . 53
S. Chrisopoulos, V.A. Osinov and T. Triantafyllidis
Vibration-Induced Stress Changes in Saturated Soil:
A High-Cycle Problem . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
V.A. Osinov, S. Chrisopoulos and C. Grandas-Tavera
Peak Stress Obliquity in Drained and Undrained Sands.
Simulations with Neohypoplasticity . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
Andrzej Niemunis, Carlos E. Grandas Tavera and Torsten Wichtmann
Constitutive Model for Clays Under the ISA Framework . . . . . . . . . . . 115
W. Fuentes, M. Hadzibeti and Theodoros Triantafyllidis
On the Use of Isotropic Hardening Plasticity to Model Cyclic
Consolidation of Fine Grained Soils . . . . . . . . . . . . . . . . . . . . . . . . . . 131
Nina Müthing, Thomas Barciaga and Tom Schanz
Experimental and Numerical Element Tests for Granular Soils:
Performance of Different Constitutive Models for Monotonous
and Low-Cycle Loading . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 149
Stefanie Danne and Achim Hettler
Towards the Holistic Simulation of Geotechnical Foundation
Processes Using Vibro-Injection Piles . . . . . . . . . . . . . . . . . . . . . . . . . 163
Wolfgang Ehlers, Maik Schenke and Bernd Markert
vii
viii Contents
Theory and Numerical Modeling of Geomechanical
Multi-material Flow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 187
Daniel Aubram, Stavros A. Savidis and Frank Rackwitz
Prediction of Construction-Induced Deformations of Deep
Excavation Walls by the Use of a Holistic
3D-Finite-Element Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 231
Andrea Thom and Achim Hettler
Mesoscale Modeling and Properties of Clay Aggregates . . . . . . . . . . . . 241
Andrew J. Whittle, Davoud Ebrahimi and Roland J.-M. Pellenq
Requirements, Concepts, and Selected
Results for Model Tests on Pile Penetration
J.Vogelsang,G.HuberandT.Triantafyllidis
Abstract Designingandperformingadaptedmodeltestsrelatedtopilepenetration
isamajortargetofthecentralprojectoftheresearchgroupGEOTECH.Thesetests
shallallowtocapturemajoraspectsofpilepenetrationquantitativelyandtoobtain
input data for numerical simulations. The tests are focused on the interaction of
thepileandthesoilindryorsaturatedconditions.Guidelinesaretokeepthetests
assimpleaspossible,realizeboundaryconditionsthatareconvenientfornumerical
simulations,andtoprovidereliableinformationonthestateofthesoilatthebeginning
of and during the tests. Furthermore, implications induced by the measurements,
e.g., lower stiffness of an instrumented pile or the use of glass walls enabling the
applicationofdigitalimagecorrelationhavetobeevaluatedandconsideredinthe
numericalsimulationsaswell.Examplesdemonstratehowtheconceptshavebeen
implemented for the measurement of tip and friction force on model piles under
monotonic, cyclic, and dynamic loading as well as for the evolution of pore water
pressure.Basedonselectedresults,sizeeffectsofthetestdevicesandtheroleofthe
modelmaterialresp.itsstatearepointedout.Thecontributionincludesadiscussion
ondisturbinginfluencessuchasfrictioninthelinearguidingsystemorbetweenpile
andglasswall.
· · ·
Keywords Modeltest Physicalmodeling Benchmark Piledriving
1 Introduction
Sincethebeginningsofgeotechnicalresearch,modeltests(resp.physicalmodeling)
havealwaysplayedamajorrolefortheinvestigationofgeotechnicalproblems,see
e.g.[5,11]andmanyothers.Comparedtoinsituexperiments,modeltestscanbean
B
J.Vogelsang( )·G.Huber·T.Triantafyllidis
InstituteofSoilMechanicsandRockMechanics,KarlsruheInstituteofTechnology,
Karlsruhe,Germany
e-mail:[e-mail]
©SpringerInternationalPublishingSwitzerland2016 1
T.Triantafyllidis(ed.),HolisticSimulationofGeotechnical
InstallationProcesses,LectureNotesinAppliedandComputational
Mechanics80,DOI10.1007/978-3-319-23159-4_1