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Leighton Consulting, Inc. <br />611 Wilshire Blvd., Suite 1404 <br />Los Angeles, CA 90017 <br />http:Hwww.leightongroup.com <br />' i%8*2* LIOUEFACTION ANALYSIS REPORT <br />Project title : The Academy - Orangewood Children's <br />CPT file : CPT-2 <br />Input parameters and analysis data <br />Location : 1901 North Fairview Street, Santa Ana, CA <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 n <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:3.0 <br />Fill weight:10[ <br />Trans. detect. applied: Yes <br />1% applied: No <br />Clay like behavior <br />0 ft applied:Sands only <br />).00 lb/ft]bmit depth applied: Yes <br />Limit depth:50.00 n <br />Cone rga 68g Frictio#At#tjGER SBTn Plot CRR plot FS Plot <br />0 <br />10-10- <br />FIU <br />5-5- <br />15-10- <br />20-20-15-15- <br />25-25-20- <br />30-30-25-25- <br />30- <br />35-35- <br />30- <br />35-35- <br />40-40- <br />40-40- <br />45- / | 45- 4 t <br />45- 1 45- ·31 - - <br />50-50- <br />55- <br />55-55- <br />60- <br />60-60- <br />65- <br />65-65- <br />70-70- <br />0 100 <br />qt (tsf) <br />M <br />0.6- <br />0.5 1 1.5 <br />IL 75 ..1.:.. 757.'.u#u.,--/151 ../.75- <br />200 0 2 4 6 8 10 1 2 3 4 0 0.2 0.4 0.6 C 2 <br />Rf (%)Ic (Robertson 1990)CRR & CSR Factor of safety <br />w=71/2, sigma'=l atm base curve Summary of liquefaction potential <br />I..'I,..1.'. <br />0.5- <br />g 0.4- <br />0.3- <br />0,2- <br />0.1- <br />Ly.11/ ..1.2. r\CILIU <br />JUU <br />7 8 <br />9 <br />100= <br />2 <br />10 40% <br />2- <br />1 <br />0.1 1 10 <br />Nomalized friction ratio (%) <br />0 1 1,1,1 11.1,11, 1 1, <br />0 20 40 60 80 <br />No Uquefaction . <br />1.1.I11.1.1.I1.111.1 <br />100 120 140 160 180 200 <br />Qtn,cs <br />Zone Al. Cyclic liquefaction likely depending on size and duration of cyclic loading <br />Zone A2 Cyclic Ilquefaction and strength loss hkely dependmg 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 />bnttleness/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, 1:24:19 PM 9 <br />Project file: P:\Leighton Consulting\603000\603284.001 Orangewood\Analyses\orangewood_cpt.clq