Holistic Simulation of Geotechnical Installation Processes: Benchmarks and Simulations PDF
Preview Holistic Simulation of Geotechnical Installation Processes: Benchmarks and Simulations
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: [email protected] Peter Wriggers, Universität Hannover, Hannover, Germany e-mail: [email protected] 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 LibraryofCongressControlNumber:2015938753 SpringerChamHeidelbergNewYorkDordrechtLondon ©SpringerInternationalPublishingSwitzerland2016 Thisworkissubjecttocopyright.AllrightsarereservedbythePublisher,whetherthewholeorpart of the material is concerned, specifically the rights of translation, reprinting, reuse of illustrations, recitation, broadcasting, reproduction on microfilms or in any other physical way, and transmission orinformationstorageandretrieval,electronicadaptation,computersoftware,orbysimilarordissimilar methodologynowknownorhereafterdeveloped. The use of general descriptive names, registered names, trademarks, service marks, etc. in this publicationdoesnotimply,evenintheabsenceofaspecificstatement,thatsuchnamesareexemptfrom therelevantprotectivelawsandregulationsandthereforefreeforgeneraluse. The publisher, the authors and the editors are safe to assume that the advice and information in this book are believed to be true and accurate at the date of publication. Neither the publisher nor the authorsortheeditorsgiveawarranty,expressorimplied,withrespecttothematerialcontainedhereinor foranyerrorsoromissionsthatmayhavebeenmade. Printedonacid-freepaper SpringerInternationalPublishingAGSwitzerlandispartofSpringerScience+BusinessMedia (www.springer.com) 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:[email protected] ©SpringerInternationalPublishingSwitzerland2016 1 T.Triantafyllidis(ed.),HolisticSimulationofGeotechnical InstallationProcesses,LectureNotesinAppliedandComputational Mechanics80,DOI10.1007/978-3-319-23159-4_1
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