2FTHEELEVATONLOCATIONSURCHARGELOADINGORGRADNGSURROUNDINGTHERETANING WALLCHANGESFROMTHATDEPCTEDONTHESEPLANSECSSHALLBENOTFEDSOTHAT MODIFICATONSTOTHEGEOTECHNICALDESGNCANBEMADEFNECESSARYNOMATERIAL SUBSTTUTONSAREPERMTTED
3UTLTESWITHNTHERETANEDZONESHALLBENSTALLEDSIMULTANEOUSLYWTHTHEWALL BACKFLL
4UTLTESALONGTHETOEOFTHERETANNGWALLSHALLBENSTALLEDPRIORTORETAINNGWALL CONSTRUCTION
5EXSTNGUTLTESSHALLBELOCATEDPRIORTOEXSTNGWALLDECONSTRUCTON
RETANNGWALLDESGNPARAMETERS
WALLSURCHARGELOADS PEDESTRANLVELOAD(psf 50
MNMUMFACTORSOFSAFETY FSAGAINSTSLIDNG 15 FSAGAINSTOVERTURNING: 20 FSAGAINSTBEARNGCAPACTYFALURE: 20 FSAGAINSTGLOBALINSTABLITY: 13 FSAGAINSTUNCERTANTES: 15
SOLWITHNRETAINEDZONEEXCAVATIONGRANULARFILL DENSTY(PCF: 115 PH(DEG) 28° COHESONPSF) 0
SOLWITHNRETAINEDZONE
1,500PSF LEVELINGPAD GRADEDAGGREGATETAMPEDNO57STONE)
MODULARBLOCKDATA
MODULARBLOCKSYSTEM: RED-ROCKRETANINGWALLSYSTEM BLOCKTYPE R-28PCMRED-ROCKUNITS
NOTES
1BLOCKSUBSTITUTONSSHALLNOTBEPERMTTED
2THEDESGNSBASEDONSOLSHAVNGAUNFEDSOILCLASSFCATONSYSTEMDESGNATONOF SMORCOARSERANDAFRCTONANGLEOF28°ORHGHERFORTHERETANEDBACKFLLSOLS RETANEDBACKFLLSHALLHAVEFINESCONTENTOFLESSTHAN45PERCENTPASSINGTHENO200 SEVE,ALQUDLMTOFLESSTHAN30ANDAPLASTCITYNDEXOFLESSTHAN10THEOWNERSTA SHALLCONFIRMTHESOLPROPERTESANDSHEARSTRENGTHPARAMETERSSHOWNONTHESE PLANSPRORTOTHESTARTOFWALLCONSTRUCTONWHENSHEARSTRENGTHTESTNGSDEEMED NECESSARYBYTHETATRAXIALSHEARTESTNGSHALLBEPERFORMED 3REFERTOSHEET201FORWALLBLOCKDETALS