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Le,ghton Consulting tic <br />Leighton Consulting, Inc. <br />611 Wilshire Blvd., Suite 1404 <br />Los Angeles, CA 90017 <br />http://www.leightongroup.com <br />2*1*i 44 ,*0, LIOUEFACTION ANALYSIS REPORT .P..1 <br />: The Academy - Orangewood Children's Location : 1901 North Fairview Street, Santa Ana, CA <br />Input parameters and analysis data <br />Analysis method:NCEER (1998) <br />Fines correction method:NCEER (1998) <br />Points to test:Based on Ic value <br />Earthquake magnitude Mw: 6.70 <br />Peak ground acceleration: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 />1% applied: No <br />Clay like behavior <br />0 ft applied:Sands only <br />1.00 |b/#3 Limit depth applied: Yes <br />Limit depth:50.00 ft <br />Cone ri8ER Frictio#AWNLGER SBTn Plot <br />10-10-10- <br />15-15- <br />20-20- -2 20- <br />25-1 25-25- <br />30-30- <br />35-35- <br />40- <br />45-45- <br />50-50- <br />55- J 55- <br />Depth (ft) <br />CRR plot FS Plot <br />0FIU <br />5- <br />10- <br />V 10 <br />Nnng eartha. <br />15-15- <br />20-20- <br />40-40- <br />15-45- <br />50-50- <br />55-55- <br />50-60- <br />55-65- <br />70-70- <br />75- ,75- <br />0 0.2 0.4 0.E <br />25-25- <br />30-30- <br />35-35- <br />i <br />2 3 4 <br />r... <br />60-60- <br />65-65- <br />70-70- <br />60- <br />65- <br />70- <br />75- <br />)246810 <br />75-, <br />0 100 200 <br />qt (tsf) <br />M <br />0.6- <br />1 0 75 <br />300 0.5 1 1.5 2 <br />Rf (%)Ic (Robertson 1990)CRR &CSR Factor of safety <br />w=7i/2, sigma'=1 atm base curve Summary of liquefaction potential <br />11.,1.11 <br />Uquefaction <br />0.5- <br />0.4- <br />0.3- <br />0.2- <br />JUU_ <br />7 <br />9 <br />100= <br />5 <br />10 - -_ <br />4 <br />1 <br />2 <br />1 <br />0.1 1 100.1 <br />Norrrnlized friction ratio (%) <br />0 20 40 60 80 <br />No Uquefaction <br />11.1I,. 11 111 I 1111 11 . <br />100 120 140 160 180 200 <br />Qtn,cs <br />Zone Al· Cydic liquefact,on likely depending on size and duration of cyclic loading <br />Zone A, Cydic hquefaction and strength loss likely depending on loading and ground <br />geometry <br />Zone B. Liquefacbon and post-earthquake strength loss unlikely, check cyclic softening <br />Zone C. Cydic liquefact,on and strength loss possible depending on so,1 plast,clty, <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, 1:24:25 PM 41 <br />2: P:\Leighton Consulting\603000\603284.001 Orangewood\Analyses\orangewood_cpt.clq <br />...........