HomeMy WebLinkAbout30577 (203)M:3Y 19 , 11) H, I
Corne i- Gms t i m, ( i (m
t 4763 P i-oct m- Av( .
City of' I ndust t`y , CA
Subject kepor-t, oi compJct ion 'l'ost'
2: 1 SJ ihihty Slop
I,ot (k5, Ty -act 30577, F,,Icon %Iie.w
Di,,,mioml 13r,r CA
J oh No. 3-35
G e n t- I emo n :
Owl
FOUNQATI004 & GEOk.OGIC INVESTIGAYIONS
FILL CONTROL - SWL rIE: STING
2 t 0 3h CIJ P K I 1• k k () A 1) - WALNUI, CALIFORNIA 917M)
12 13 ) 904 344 9 6714)504-7414
In a c, c C) I- cl a n c e ^ W i t E I y () (I r r- (' (I u ('.'i I this firm inspccted and &cstod the compacted
fill Placed on the subject site licrween April 4 and May li, 1983. A plan
of dle site showing, the test loc,"t ions and othei- data pertinent: to thi,,; i,oport
is rAtaache^di -v; Viptjr,c No" 1.
Reference dat ;I u' -ted i11 t ho pi-epor-'a i on of t h i E; r-k,port colls i st ed of a r
of Gootechnical Itivcstip,,"rion by kichar-d Mills, Assoc", I vic , da t ed
May 1w3, 19 7 7 ;'ind as I = 20' sc,-j I e gr.ad i ng paha pi-epared by Cornc r Cons I ruc, t i on
d a t e (I De c . 12, 1980 S i t: (, prolm r a t i on , gi, ad i ng and tes t- i np wey-e conduc t ed
i,T) t:fl(, fol low i ng 111"Innel-
S t c 1) r epp r a t 1 on
A Surface dob Y- i s, rand voge t a t i on Was S t, I- i pped and hau I ed o I I t
B Tree s no t t, c) r orna;i n we r rernov ed a nd t I 1 c 1- Q S u I t i ng c a v i es a nd r, oc) t s
W('r(' r('III0VCd dtlriflp, tlW CULti% opoi- ation.
C' A 10 foot wide by 2 foot deep shea i- key wa s exca va t ed 'into the bedi-ock
t the toe of the pr-oposod 2: 1 fill. Slope.
D. Th e x po s ed f) o t_ c om o I L h e s I i ea i- k e y wa s p i-epa r ed t0 T- 0 C ( i VkI Bill try= S (';j r f y ng
t-, o is dop t h of 6 inches awt (, r- ng, a s neces sar,y and compac t i rip, t0 T11 i 1) i MUID
requ ircment:-a .
A Fa, I I so i I s we Y -o s p r,ead 1n 4 t 6 i rich. I of)se I i f t s , wa t ered as ne cessa ry
and compacted L o mi n i mum requ i romen t s, ,
A
page Two
May 19, 1983 Job No.: 3-35
Gradint (con't)
B. The method used for adding moist" ry and compacting was a water home and
roling with a 4x4 mhvvps foot roller and track rolling with the grading
equipment,
Q Unching into approvod bedrock was maintained as filling progrvmsvd up
Testing
A. Field density tests wore pprformed in accordance with ASTM Ivs! method
D1556, Tho results of thpsv Ics1s, takvn during the course of grading
arp atlachoW ms " part of this report
B. (Ampaut ion tests warp takp" in the outer 6 inches of thv slope surface
in accordanco wi th the drivc-cyl War nwthod as devisvd by J.P. Redus,
ASTM D7937-71
C. Maximum density and optim"m moistury wvry determined for each ryFv of
rill soil in accordance with ASTM test moLbod D1557-70. The results of
those detorminnt ions along with I he expansion potential of the soils,
determined in accordance with U.&C. test standard 29-2, are as follows:
rcai1 f" adM"IxDen
A - Clayvy sand and shalo X110.7 12.6
B - Siltstone 106.8 18,8
Conclusi"ns nrd Rptommondations
It is UP opinion of this firm that the fill soils placed an the s"hjvct.
silv, as rpporLpd harin, h"vP fraen pr(yprly compact(W for thvii intended
uso
Respectfully submitt.vd,
DUCO ENWNFERINN, INC. Approved by:
Sterling V,'Whitv, RCE JOH63
0 DLJCO ENGINEERING, tNC. 0
SUMMARY OF FIELD DENSITY TESTS Job No.: 3-35
Test Lot Elevations Moist. Dry Den. Soil
No. Date No, Nast. Fin, Gr. Test Field P,C.F. Field T c
1 4-12-83 1041 1045.0 1042.0 23.4 102.9 A 93.0
2
11 10)40).0) 1,044,0 1.0I43.0 15.4 107.4 A 97.0
3 4 _..1 '3 -.- 83 10110.5 104 6 . 0 104 5.0 27.1 98.7
4 It 1041 1049. 1047.0 19.0 1.0)1 .3 A 91.5
5 4-14-83 104!-,,(.D 1050 1049.0 21.9 96 8 B 90.6
6
11 1050'() 10;) 51.) 0 1051 .0 19.3 105 5 A 95.3
7 4-'15-- 3 10/18 , 0 1054 0 10')53.0 20.7 97,9 B 91.6
8 5-17._133 IIWT TFIST 19.1 901.4 B 9:3.1
9 S1101111: TKST 22.0 X101.1 B 93.'1
1.0) Sl1,0111? TEST 22.3 7.0 B 90 8