Geotechnical problem solving

359 Pages·2012·29.846 MB·English

by  Lommler, John C

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
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JWST132-fm JWST132-Lommler December30,2011 13:17 PrinterName:Markono
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JWST132-fm JWST132-Lommler December30,2011 13:17 PrinterName:Markono
Geotechnical Problem Solving
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JWST132-fm JWST132-Lommler December30,2011 13:17 PrinterName:Markono
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JWST132-fm JWST132-Lommler December30,2011 13:17 PrinterName:Markono
Geotechnical Problem
Solving
John C. Lommler
PrincipalGeotechnicalEngineer,USA
A John Wiley & Sons, Ltd., Publication
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JWST132-fm JWST132-Lommler December30,2011 13:17 PrinterName:Markono
Thiseditionfirstpublished2012
©2012JohnWiley&Sons,Ltd
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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
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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
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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
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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
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