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EARTH SYSTEMS PACIFIC <br />48511 Warm Springs Blvd., Su¡te 210 <br />Fremont, CA 94539 <br />(s10) 3s3-3833 <br />www.eafthsystems.com <br />e <br />Project title : 353 Main Street Apaltnents (SH-13131-SA) <br />CPT f¡le : CPT-C4 <br />Input parameters and analysis data <br />Locat¡on : 353 Main Street, Redwood City, CA <br />Analysis method: <br />Fines correction method : <br />Points to iest: <br />Earthquake magn¡tude Mw: <br />Peak ground accelerat¡on: <br />NCEER (1998) <br />NCEER (19e8) <br />Based on Ic value <br />8.05 <br />0.60 <br />Use fill: No <br />Fill height: N/A <br />Fìll we¡ght: NiA <br />Trans. detect. appl¡ed: Yes <br />Ç applied: Yes <br />Clay like behavior <br />applied: <br />Lim¡t depth applied <br />Limit depth: <br />MSF method: <br />Sands only <br />No <br />N/A <br />Method based <br />G.W.T. (in-s¡tu): 13.00 ft <br />G.W.T. (earthq.): 5.00 ft <br />Averaqe results interval: 3 <br />Ic cut-off value: 2,60 <br />Unit weight calculation: Based on SBT <br />SETn PlotCone re¡btalre Fiction Ratio <br />qt (Ef) Rf (o/o) <br />Mw=lal2, s¡gma'=:, atm base curve <br />QEr,cs <br />CRR plot PS Pbt <br />g D.2 0,4 0.6 0 0,5 1 15 2 <br />CRR &CSR Factor ofsafety <br />Summary of liquefaction potential <br />Ë <br />CL(Uô <br />10 <br />15 <br />20 <br />30 <br />35 <br />40 <br />45 <br />stl <br />55 <br />60 <br />65 <br />m <br />æ <br />Æ <br />45 <br />50 <br />tl <br />ı <br />m <br />10 <br />m <br />ã] <br />35 <br />4tr <br />45 <br />5{l <br />30 <br />4u <br />45 <br />50 <br />56 <br />m <br />65 <br />m <br />10 <br />15 <br />2¡l <br />25 <br />30 <br />35 <br />40 <br />45 <br />50 <br />60 <br />65 <br />m <br />6u <br />ô5 <br />7t <br />ãtrl 2 3 <br />Ic (Robertson 1990) <br />0.8 <br />o.7 <br />o 20 4t) 60 sr ro0 Læ 140 160 ß0 Ão <br />1,0m <br />0,1 1 10 <br />Normalized frictim ratio (o/o) <br />Zone A1: Cycl¡c l¡quefact¡on likely depend¡ng on sEe and durat¡on of cycl¡c load¡ng <br />Zone A2: Cycl¡c liquetaction and strength lo$ l¡kely depe¡d¡ng on load¡ng and ground <br />geometry <br />Zone B: Lquefact¡on and post-earthquake strength loss unl¡ke¡y, check cyclic sofiening <br />Zone C: Cycl¡c lìquefactio¡ and slfength loss possible depending on soil plast¡city, <br />br¡ttleness/sens¡tivity, strain to peak undrained st¡ength and ground geometry <br />(u <br />U <br />ñ <br />('ñ <br />oL <br />Srm <br />ob <br />{Uc(u <br />o- <br />h(JÚ <br />E(u <br />N <br />o <br />ËLoz. <br />:- 0u <br />IÍl)J D,5 <br />3 <br />!I o,c <br />U <br />â o,sI3>-) <br />o.2 <br />0.1 <br />firtrìTra É¡¡-N-rÈ <br />L¡quêfaction <br />I <br />filr Liquefaction <br />CLiq v.2.0.6.97 - CPT Liquefaction Assessment Software - Report created on: 41412018,2:52:13 PM <br />Project f¡le: S:\FREMONï FILE FOLDERSUndividual Folders\Girmay\Projects\2016\353 Main Street\3s3 Main Street - Updated.clq <br />7 <br />7.B. - Page 114