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Geotechnical problem solving PDF

359 Pages·2012·29.846 MB·English
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244 x 168 (Markono) 20mm GREEN BOX RULES ARE FOR PROOF STAGE ONLY. DELETE BEFORE FINAL PRINTING. Lommler Area for visuals of front cover: 250 x 167mm Geotechnical Problem Solving John C. Lommler Ph.D., P.E., D.GE, Principal Geotechnical Engineer, USA G e This practical guide to advanced geotechnical topics helps readers solve problems o in real-world situations. t Taking a personal tone and devised with a focus on practical aspects, Geotechnical Problem e Solving bridges the gap between geotechnical and soil mechanics material covered in c university Civil Engineering courses and the advanced topics required for practicing Civil, h Structural and Geotechnical engineers. By giving newly qualifi ed engineers the information n Geotechnical needed to apply their extensive theoretical knowledge, and informing more established i practitioners of the latest developments, this book helps readers confi dently approach c problems having thought through the various options available. Where various competing a solutions are proposed, the author systematically guides readers through each option, weighing l the benefi ts and drawbacks of each, to ensure they can approach and solve real-world P problems in a similar manner. r • o P roblem Links theoretical and practical work to provide a reference and guide to geotechnical topics b • l Takes readers through various scenarios helping them to understand how to e solve problems effi ciently m • Provides a perspective on complexity in geotechnical practice • Gives readers the tools they need to understand the principles and history S Solving behind the material so that they can handle real-world problems o • Covers a broad range of geotechnical topics, including soils, foundations l v and retaining structures, and provides an introduction to the background i and application of geotechnical LRFD n • g Reading recommendations are given including special articles and references for further study of advanced material • Uses a ‘problem’ and ‘answer’ mentoring approach from the author to the reader to answer many of the reader’s questions John C. Lommler Cover design: Gary Thompson P1:TIX/XYZ P2:ABC JWST132-fm JWST132-Lommler December30,2011 13:17 PrinterName:Markono P1:TIX/XYZ P2:ABC JWST132-fm JWST132-Lommler December30,2011 13:17 PrinterName:Markono Geotechnical Problem Solving P1:TIX/XYZ P2:ABC JWST132-fm JWST132-Lommler December30,2011 13:17 PrinterName:Markono P1:TIX/XYZ P2:ABC JWST132-fm JWST132-Lommler December30,2011 13:17 PrinterName:Markono Geotechnical Problem Solving John C. Lommler PrincipalGeotechnicalEngineer,USA A John Wiley & Sons, Ltd., Publication P1:TIX/XYZ P2:ABC JWST132-fm JWST132-Lommler December30,2011 13:17 PrinterName:Markono Thiseditionfirstpublished2012 ©2012JohnWiley&Sons,Ltd Registeredoffice JohnWiley&SonsLtd,TheAtrium,SouthernGate,Chichester,WestSussex,PO198SQ,UnitedKingdom Fordetailsofourglobaleditorialoffices,forcustomerservicesandforinformationabouthowtoapply for permission to reuse the copyright material in this book please see our website at www.wiley.com. Therightoftheauthortobeidentifiedastheauthorofthisworkhasbeenassertedinaccordancewiththe Copyright,DesignsandPatentsAct1988. Allrightsreserved.Nopartofthispublicationmaybereproduced,storedinaretrievalsystem,or transmitted,inanyformorbyanymeans,electronic,mechanical,photocopying,recordingorotherwise, exceptaspermittedbytheUKCopyright,DesignsandPatentsAct1988,withoutthepriorpermissionof thepublisher. Wileyalsopublishesitsbooksinavarietyofelectronicformats.Somecontentthatappearsinprintmay notbeavailableinelectronicbooks. Designationsusedbycompaniestodistinguishtheirproductsareoftenclaimedastrademarks.Allbrand namesandproductnamesusedinthisbookaretradenames,servicemarks,trademarksorregistered trademarksoftheirrespectiveowners.Thepublisherisnotassociatedwithanyproductorvendor mentionedinthisbook.Thispublicationisdesignedtoprovideaccurateandauthoritativeinformationin regardtothesubjectmattercovered.Itissoldontheunderstandingthatthepublisherisnotengagedin renderingprofessionalservices.Ifprofessionaladviceorotherexpertassistanceisrequired,theservices ofacompetentprofessionalshouldbesought. LibraryofCongressCataloging-in-PublicationData Lommler,JohnC. Geotechnicalproblemsolving/JohnC.Lommler. p.cm. Includesbibliographicalreferencesandindex. ISBN978-1-119-99297-4(hardback) 1.Engineeringgeology. 2.Soilmechanics. 3.Soil-structureinteraction. I.Title. TA705.L642012 (cid:2) 624.151–dc23 2011044002 AcataloguerecordforthisbookisavailablefromtheBritishLibrary. Setin10/12.5ptPalatinobyAptaraInc.,NewDelhi,India P1:TIX/XYZ P2:ABC JWST132-fm JWST132-Lommler December30,2011 13:17 PrinterName:Markono Contents Preface vii 1 GeneralTopics 1 1.1 HowtoUseThisBook 2 1.2 YouhavetoSeeIttoSolveIt 5 1.3 MyApproachtoModernGeotechnicalEngineeringPractice–An Overview 12 1.4 MistakesorErrors 26 2 GeotechnicalTopics 35 2.1 SoilClassification–WhyDoWeHaveIt? 36 2.2 SoilStressesandStrains 61 2.3 SoilShearStrength 73 2.4 ShearStrengthTesting–WhatisWrongwiththeDirectShearTest? 84 2.5 WhatistheSteadyStateLine? 94 2.6 StaticEquilibriumandLimitStates 105 2.7 UnsaturatedSoils 110 3 Foundations 127 3.1 SettlementsofClays 128 3.2 SettlementsofSands 139 3.3 Self-WeightSettlementofSandySoils 161 3.4 BearingCapacityofShallowFoundations 169 3.5 LoadCapacityofDeepFoundations 179 3.6 LaterallyLoadedPilesandShafts 205 4 RetainingStructures–LateralLoads 221 4.1 LateralEarthPressure 222 4.2 RetainingWalls–Gravity,Cantilevered,MSE,SheetPiles,and SoldierPiles 234 4.3 TiebackWalls 255 P1:TIX/XYZ P2:ABC JWST132-fm JWST132-Lommler December30,2011 13:17 PrinterName:Markono vi Contents 5 GeotechnicalLRFD 267 5.1 Reliability,UncertaintyandGeo-Statistics 268 5.2 GeotechnicalLoadandResistanceFactorDesign 278 5.3 LRFDSpreadFootings 282 5.4 LRFDPileFoundations 295 5.5 LRFDDrilled-ShaftFoundations 303 5.6 LRFDSlopeStability 312 6 Closing 321 6.1 TheBigPicture 322 6.2 VandVandBalance 327 6.3 TheBiggestProblem 330 6.4 TopicsLeftforLater 332 Index 335 P1:TIX/XYZ P2:ABC JWST132-Preface JWST132-Lommler December19,2011 9:59 PrinterName:Markono Preface 7December2007,6:19am Forseveralyears,myfriendRalphPeckhasbeengentlyencouragingmetopartic- ipatemoreactivelyinthegeotechnicalengineeringcommunityandtowriteabook. Afewweeksagohetoldmeaboutstartingtowritehisfamousbook,SoilMechanicsin EngineeringPractice.ThedayhestartedtowritewasDecember7,1941,betterknown as“PearlHarborDay.”Talkabouthardtimestowriteabook!Ralphtoldmeittook sevenyearstowritethatfirstbookandthatitwasimpossible,ornearlyimpossible, tofinish,butworththeeffort. IsuggestedtoRalphthatat61yearsold,Iampastmyprimeforwriting,andthatin 1948attheageof36,when“TerzaghiandPeck”waspublished,hewasinhisprime. Ralphpointedoutthatalthoughhewas36,Terzaghiwas65yearsold,andthatthe oldgentlemanwrotepapersandbooksuntilthedayhediedatage80. Although Ralph is too much of a gentleman to say it directly, he does suggest bycomparisontohisgeneration,thatmygenerationofgeotechnicalengineerstook themoney,keptinformationproprietary,anddidnotshareourexperiencewiththe engineering community at large. I guess (alright I know) that Dr. Peck is right, and sothisbookismyfirstseriousattemptatsharingwithyouthepracticingengineer. For his example, and his encouragement, we all owe a great debt of gratitude to RalphB.Peck,thanksRalph. JohnC.Lommler,Ph.D.,P.E. SandiaPark,NewMexico P1:TIX/XYZ P2:ABC JWST132-Preface JWST132-Lommler December19,2011 9:59 PrinterName:Markono

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