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Leighton Consulting, Inc. <br />611 Wilshire Blvd., Suite 1404 <br />Los Angeles, CA 90017 <br />http://www.leightongroup.com <br />r "11.,1 <br />%4*482iy .*y,2/barM·/I- >-·' ... ........ <br />Project title : The Academy - Orangewood Children's <br />CPT file : CPT-3 <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 ft <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:3.0 <br />Fill weight:10[ <br />Trans. detect. applied: Yes <br />K, applied:No <br />Clay like behavior <br />Oft applied:Sands only <br />1.00 Ibm]Limit depth applied: Yes <br />Limit depth:50.00 ft <br />Cone rFiat'268 E R Frictio#AiGER SBTn Plot CRR plot FS Plot <br />10- <br />15- <br />20- <br />25- <br />30- <br />35- <br />40- <br />45- <br />50- <br />55- <br />60- <br />65- <br />70- <br />75- <br />(U) 41(jacl <br />FIU <br />10-5-5 <br />15-10-10 <br />20-15-15 <br />25--20-20 <br />30-25-25 <br />30-30 <br />35- <br />35-35 <br />40- <br />40-40 <br />45- <br />45-45 <br />50- <br />50-50 <br />55- <br />55-55 <br />60- . <br />60-60 <br />65- .65-65 <br />70-70-70 <br />75--r,--¥ ,-75- ,75 <br />5 8 10 1 2 3 4 0 0.2 0.4 0.6 0 0.5 <br />10- <br />15- <br />20- <br />25- <br />30- <br />35- <br />40- <br />f <br />45- 50- <br />70-1 <br />50 100 150 0 2 4 1.5 2 <br />qt (tsf)Rf (%)Ic (Robertson 1990)CRR & CSR Factor of safety <br />Mw=71/2, sigma'=l atm base curve Summary of liquefaction potential <br />06- ' ' ' ' ' ' ' ' ' ' ' ' ' ' '1,000 <br />Liquefaction <br />It/'111 <br />7 <br />0.5- <br />0.4- <br />0.3- <br />0.2- <br />0.1- <br />1Vt· <br />100= <br />10: <br />1 <br />1.1 1 <br />N <br />lili lili 1 Ililli <br />10 <br />Norr,alized friction ratio (%) <br />0 20 40 60 80 100 120 11 <br />Qtn,cs <br />No Liquefaction - <br />0 160 180 200 <br />Zone A, Cyclic liquefaction likely depending on size and duration of cyclic loading <br />Zone A2 Cyclic liquefaction and strength loss likely depending on loading and ground <br />geometry <br />Zone B Liquefaction and post-earthquake strength loss unlikely check cyclic softening <br />Zone C Cyclic liquefaction and strength loss possible depending on soil plasticity <br />brittleness/sensitivity strain to peak undrained strength and ground geometry <br />CLiq v. 1.5.1.16 - CPT Liquefaction Assessment Software - Report created on: 11/2/2011, 1:24:20 PM 17 <br />Project file: P:\Leighton Consulting\603000\603284.001 Orangewood\Analyses\orangewood_cpt.clq <br />SL Rvcd 2019.01.21