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Leighton Consulting, Inc. <br />611 Wilshire Blvd., Suite 1404 <br />Los Angeles, CA 90017 <br />http://www.leightongroup.com <br />'94 LIOUEFACTION ANALYSIS REPORT 94: 7771'71- .1.«44 0, <br />: The Academy - Orangewood Children's Location : 1901 North Fairview Street, Santa Ana, CA <br />NCEER (1998)G.W.T. (in-situ):30.00 ft Use fill:Yes Clay like behavior <br />NCEER (1998)G.W.T. (earthq.)15.00 ft Fill height:3.00 ft applied:Sands onl <br />Based on Ic value Average results interval: 3 Fill weight:100.00 lb/fU Limit depth applied: Yes <br />6.70 Ic cut-off value:2.60 Trans. detect. applied: Yes Limit depth:50.00 ft <br />0.38 Unit weight calculation:Based on SBT Ko applied:No <br />Fricti9lk#84ZGER SBTn Plot CRR plot FS Plot <br />0FIU <br />10-10-5- <br />4 5 <br />15-15-10-V 10 -V <br />20-20-20- =t' "·Gmearthq15- <br />25-25-25- ··n·20-20 <br />30-30-25-25 <br />35-35-30-30 <br />40-40-35-35 <br />45-45-45-7 40-40 <br />6 50-50-45-50-r li 45 <br />1 55-50-5055- <br />55-5560-60- <br />60-60 <br />65-65- <br />65-65 <br />70-70- <br />70-70 <br />75-75- <br />75-75 <br />80-80- <br />80-80 <br />85-85- <br />85-85 <br />90-90-90-90-90 <br />95-95-95-95 <br />100 1,1,1.,i 100- i,• r-i .,i.I•,•,i 100 100 1,1 <br />0 200 400 0246810 2 3 4 0 0.2 0.4 0.6 0 0.5 1 1.5 2 <br />qt (tsf) <br />0.6- <br />Rf (%)Ic (Robertson 1990)CRR & CSR Factor of safety <br />71/2, sigma'=l atm base curve Summary of liquefaction potential <br />0.5- <br />0.4- <br />0.3- <br />0.2- <br />0.1- <br />011'.11.11.111,1,1,1 <br />0 20 40 60 80 <br />00.0 - <br />JUU_ <br />7 <br />100= <br />10 <br />4 <br />1 <br />1 <br />lilli <br />0.1 1 10 <br />Norrralized friction ratio (%) <br />No Uquefaction . <br />111,111,1.1.11 11111.1 <br />100 120 140 160 180 200 <br />Qtn,cs <br />Zone A 1 Cyclic liquefaction likely depending on size and duration of cydic loading <br />Zone Ai Cydic 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 />5.1.16 - CPT Liquefaction Assessment Software - Report created on: 11/2/2011, 1:24: 17 PM <br />3: P:\Leighton Consulting\603000\603284.001 Orangewood\Analyses\orangewood_cpt.clq <br />I........=..