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Leighton Consulting, Inc. <br />611 Wilshire Blvd., Suite 1404Let®lon Cons-g Inc <br />Los Angeles, CA 90017 <br />http://www.leightongroup.com <br />LIOUEFACTION ANALYSIS REPORTA ft <br />Project title : The Academy - Orangewood Children's <br />CPT file : CPT-4 <br />Input parameters and analysis data <br />Location : 1901 North Fairview Street, Santa Ana, CA <br />Analysis method: <br />Fines correction method: <br />Points to test: <br />Earthquake magnitude Mw: <br />Peak ground acceleration: <br />NCEER (1998) <br />NCEER (1998) <br />Based on Ic value <br />6.70 <br />0.38 <br />G.W.T. (in-situ):30.00 ft <br />G.W.T. (earthq.):15.00 n <br />Average results interval: 3 <br />Ic cut-off value:2.60 <br />Unit weight calculation:Based on SBT <br />Use fill:Yes <br />Fill height:3.01 <br />Fill weight:10[ <br />Trans. detect. applied: Yes <br />1% applied:No <br />Clay like behavior <br />Oft applied:Sands only <br />).00 lb/ft3 Limit depth applied: Yes <br />Limit depth:50.00 ft <br />Cone rMihIPA'68ER Frictio#A|t)RJGER SBTn Plot CRR plot FS Plot <br />ITII 0-- <br />10- <br />15- <br />20- <br />25- <br />5-5 <br />10- <br />V 10 <br />15-15 <br />20-20 <br />25-25 <br />30-30 <br />35-35 <br />40-40 <br />45-45 <br />50-50 <br />55-55 <br />60-60 <br />65-65 <br />70-70 <br />75-75 <br />2 <br />10- 1 10 <br />15- 1 15 <br />30- <br />i 35 <br />40- <br />45- <br />50- <br />55- <br />60- <br />65- <br />(U) 1.Adec] <br />20-2( <br />25-2f <br />30-3C <br />35- <br />r <br />3E <br />45- <br />50- <br />40 <br />45 <br />50 <br />55- <br />60- <br />65- <br />70- <br />75- <br />50 100 150 <br />qt (tsO <br />2 <br />55 <br />60 <br />70- <br />75- <br />0.< <br />65 <br />70 <br />75 <br />1111I,1 1 1 1 1 1 1111111 <br />4 6 8 10 1 2 3 4 0 02 0.4 0.6 0 0.5 1 1.5 <br />Rf (%)Ic (Robertson 1990)CRR & CSR Factor of safety <br />M-=71/2, sigma'=1 atm base curve Summary of liquefaction potential1..'1..'I... <br />Uquefaction <br />0.5- <br />0.4- <br />0.3- <br />0.2- <br />uuu.1 lilli <br />1 <br />100= <br />4 <br />10 <br />4 <br />C <br />1 <br />2 <br />1 lili <br />0.1 1 10 <br />0.1 <br />Normalized friction ratio (%) <br />0 20 40 60 80 <br />No Uquefaction . <br />1.1.1111I.1.1..1 I1.1 <br />100 120 140 160 180 200 <br />Qtn,cs <br />Zone A, Cydic hquefaction likely depending on size and duration of cyclic loading <br />Zone A2 Cyclic liquefactlon and strength loss likely depending on loading and ground <br />geometry <br />Zone 8: Liquefact,on and post-earthquake strength loss unlikely, check cycl,c softening <br />Zone C Cyclic liquefaction and strength loss possible depending on sort plasticity, <br />brittleness/sensitivity, strain to peak undralned strength and ground geometry <br />CLiq v. 1.5.1.16 - CPT Liquefaction Assessment Software - Report created on: 11/2/2011, 1:24:22 PM <br />Project file: P:\Leighton Consulting\603000\603284.001 Orangewood\Analyses\orangewood_cpt.clq