HomeMy WebLinkAboutCT 72-13; Carlsbad Condominium Villas; Soils Report; 1974-09-18~hlS?XT!O!d * TESTP,‘G - RESEARCH l DEVEL(BP.*.fr!3’4T
6280 Hiverdaie St. 4 San Diego, California 92120 l Phone 280-4321
Septetier 18, 1974
Larry D. Hunts and AssocFates, A.I.A. .3025 Fifth Avenue SCT,.210081
San Diego, California 92103 Report No. 4
SUBJECT: Report of In-Place Density Tests, Proposed Carlsbad Condo- minium Villas, Harbor Drive and Carlsbad Lagoon, Carlsbad, California.
Gentlemen: -
In accordance with your request, this report has been prepared to es-
tablish the degree of compaction of the prepared natural ground and
compacted fill as tested by the Southern California Testing Laboratory,
Inc. from August 14, through September 7, 1974.
Prior to grading operations, the site was cleared of grass and debris.
Adequate keys were then made in the proposed fill area in order to
establish a good base for supporting the~proposed compacted fills. The
fill, taken from cuts made on the site and import source, was then
placed in six (6) to eight (8) inch lifts and compacted by means of a
- sheepsfoot roller and heavy construction equipment.
- Pield density tests were performed in accordance with A.S.T.!l. D-1555-
64. Moisture content was determined for each density sample. The
- results and location of the tests are given on the attached figures.
Representative samples of the tested material were obtained for labor-
atory tests.
SlOlO
.9.35
-
XT 218061 Ss?tember i8, 1974
Laboratory compaction tests to determine ma:<i?~m c?r; ec-yLsit:.r r::;(? "7
timum moisture were performed in accordance with A.S.T.M. Test Method
D-1557-70, Method C..The results of the laboratory compaction test
are given on the attached Figure No. 2.
Since there are transition lines between cut and fill running through
. building pad areas, it is the recommendation of the Southern Cali-
fornia Testing Laboratory, Inc. that adequate steel be placed in the
footings. This recommendation is based on the tendency of cut and fill
soils to compress differently, resulting in cracking of footings and
unequal structural support. "wo NO. 4 bars in the top and two ?io. 4
bars in the bottom of the foundation; extended ten feet each side of
a transition line, should tend to reduce the cracking resulting from
differential movement.
- Based on field observations and the density test results, it is the op-
inion of Southern California Testing Laboratory, Inc. that the grading
was performed substantially in accordance with the recommendations
contained in our Soil Investigation Report dated July 25, 1972.
No footing should be placed nearer than five (5) feet to the face of
a one and one half (l-1/2) horizontal to one (1) vertical plane pro-
jected upward from the toe of a compacted fill or a fill slope twenty
(20) feet or less in vertical height, For vertical heights exceeding
twenty (20) feet, the five (5) foot setback from the, plane should be
increased to one (1) foot for each additional five (5) feet of vertica
height.
..-
SCT. 210081 Septemhr 18, 1974 Page Three .~. .
It is reco:rzer,d?-; - t:px3t ;i:yQrua.te <_r,:,i>q?.c:.2 i provisions and slope planting
be incorporated to reduce the probability of surface erosion and
sloughing.
If you have any questions regarding our report, please do not hesitate
to contact this office.
This opportunity to be of service is sincerely appreciated.
Respectfully submitted,
SOUTHERN CALIPORNIA TESTING LAB., INC.
Charies H. Christian. R. C. E.
DAP/rf ' - Enc. cc: (5) Submitted (1) SCTL, Escondido
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PLOT PLPN
BY DATE JC 9-2X-14 _
JOB NO. 21lll-lRl .2’TPll”W rrn 1
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. SCALE= : /= 80 ’
Carlsbad Condominium Villas
6280 RIVERDALE STREET Harbor Drive and Carlsbad Lagoon
~SAN DIEGO. CALlFORNlA 92120 Carlsbad, California
PLOT PL?J
SOUTHERN CALIFORNIA I TESTING 1 _^^^ -.. .AEORATORY, INC. Carlsbad Condominium Villas
tuo” IW’ERDALE STREET Farbar Drive and Carlsbad Lagoon
SAN DIEGO, CALIFORNIA 92120 Carl&ad, California
PLOT PLAN
By JC ' DATE g-23-14
JOB NO. 210081 FIGURE NO. 3
-
-
L
/\ / ‘491 / / ‘44 4/
145 l 34
26 l $ I
5; 037 JT 73
IH
l & I 30 4a* I
I
SOUTHERN CALIFORNIA
TESTING LABORATORY, INC. Qrlsbad Condominium Villas
13280 RIVERDALE STREET Aarbor Prive and Carlsbad Lagoon
SAN DIEGO, CALIFORNIA 92120 Carlsbad, California
__ ^
BY D.\TE JC 0-_73-:.;
PLOT PLAX JOB NO. 210081 FIGUFS NO. 4
-
FIGURE NO. 5 DATE September 11, 1974 JOB NO, 210081
‘I SST
NO.
1
-2
3 -
4
~-5
6
-. 7
8
9
-10
11
-12
13
14
-15
16
~-17
18
19
-20
21
22
-23
24
15
26
DATE LOCATION
8-14-74 See Plot Plan
8-14-74 See Plot Plan
8-14-74 See Plot Plan
8-14-74 See Plot Plan
8-14-74 See Plot Plan
8-14-74 See Plot Plan
a-14-74 See Plot Plan
8-14-74 See Plot Plan
8-14-74 See Plot Plan
8-14-74 See Plot Plan
a-14-74 See Plot Plan
8-14-74 See Plot Plan
8-14-74 See Plot Plan
8-15-74 See Plot Plan
8-15-74 See Plot Plan
8-15-74 See Plot Plan
a-15-74 See Plot Plan
8-15-74 See Plot Plan
8-15-74 See Plot Plan
a-15-74 See Plot Plan
8-15-74 See Plot Plan
8-18-74 See Plot Plan
a-10-.74 See Plot Plan
8-18-74 See Plot Plan
8-18-74 See Plot Plan
E-18-74 See Plot Plan
ELEV. OR
DEPTH OF MOIST.
TEST,FT -1.
52.0' NC 13.6
54.0' 9.3
54.0' 10.5
54.0' 12.4
53.5' 11.1
55.0' 11.7
55.0' 11.7
56.0' 10.8
56.0' 10.5
57.0' 11.4
57.5' 14.0
58.0' 8.7
58.0' 10.8
59.0' 11.7
59.0' 10.5
59.0' 12.7
59.5' 11.1
60.0' 12.4
60.0' 11.1
60.5' 11.4
61.0' 0.6
61.0' NG 10.5
60.5' NG 11.7
58.5' NG 11.7
62.5' 10.5
62.0' 12.4
DRY DEN.
LBS. I
CU. FT.
124.7
118.5
118.8
121.5
120.0
125.5
124.1
121.7
122.8
123.6
‘124.0
120.3
121.5
122.2
119.0
123.5
120.3
122.1
121.3
122.8
121.2
119.0
120.5
119.2
118.3
Hi.2
%
SOIL RELATIb
TYPE
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
9
9'
9'
9
9
91
9'
9'
91
91
91
91
9!
91
91
I
COMF:
99.7
94.7
95.0
97.1
95.9
00.3
99.2
97.3
98.2
98.8
99.1
6.2
7.1
7.7
5.1
8.7
6.2
7.6
7.0
8.2
6.9
5.1
5.3
3.3
1.6
?.5
-
FIGURE NO. 5 DATE September 11, 1974
-
TEST
NO. --
27
28
-29
30
-31
32 -
33
-34
35
-36
37 -
38
-39
40
-41
42 -
43
-44
45
-46
47
40
-49
50
-51
- 52
DA& LOCAT ION
6-18-74
8-19-74
8-19-74
8-19-74
E-19-74
8-19-74
8-19-74
8-19-74
8-19-74
a-20-74
a-20-74
8-20-74
a-20-74
a-20-74
8-22-74
8-22-74
8-22-74
8-23-74
8-23-74
8-23-74
8-26-74
6-26-74
8-26-74
8-26-74
8-27-74
a-27-74
See Plot Plan
See Plot Plan
See Plot Plan
See Plot Plan
See Plot Plan
Se@ Plot Plan
See Plot Plan
See Plot Plan
See Plot Plan
See Plot Plan
See Plot Plan
See Plot Plan
See Plot Plan
See Plot Plan
See Plot Plan
See Plot Plan
See Plot Plan
See Plot Plan
See Plot Plan
See Plot Plan
See Plot Plan
See Piot Pian
See Plot Plan
See Plot Plan
Retest # 47
See Plot Plan
ELEV. OR
DEPTH OF MOIST.
TEST, FT o/o
61.0' 12.0
63.0' 11.1
63.0' 12.4
63.5' 11.7
57.5' NG 11.1
58.5' 12.0
64~.5' 11.4
64.5' 12.4
64.0' 13.0
65.5' 12.7
65.5' 11.4
65.0' 12.4
66.5' 10.8
66.5' 12.4
67.5 11.7
68.5 9.9
69.5 10.5
70.5 11.1
71.5 12.4
58.5 NG 7.0
62.5 5.8
63.5 6.7
72.5 9.6
13.5 9.9
63.5 10.8
74.5 10.5
Page Two
JOB NO.-210081
DRY DEN.
LB5 I
CU. FT.
117.8
118.1
121.8
120.5
117.0
119.0
117.3
118.0
120.8
119.1
116.5
116.9
120.2
123.7
121.2
118.5
119.8
116.3
119.2
121.0
112.2
114.5
115.0
114.7
124.2
111.8
SOIL
, TYPE
1
1
1
1
1
1
1
1
1
1
1
1
2
2
5
5
5
5
5
4
4
4
5
5
4
5
.I.
RELATl\
COMP
94.2
94.4
97.4
96.3
93.5
95.1
93.8
94.3
96.6
95.2
93.1
93.4
94.4
97.2
97.9
95.7
96.8
93.9
96.3
90.1
83.5
85.3
92.9
92.6
92.5
no.3
- FIGURE NO. - 5 DATE September 11, 1974 Page Three
JOB NO, 210081
,-
‘I .iST
NO.
43
-4
55
6
17
28
-9
60 -
1
'2
b3
-4
55
6
'7
68 .-
9
7_0
.1
-2
73
4
I5
.6
-7
78 -
DATE LOCAT ION TEST ET o/o
a-27-74 See Plot Plan
8-28-74 Retest ,i: 4%
a-28-74 See Plot Plan
8-28-74 See Plot Plan
a-29-74 See Plot Plan
a-29-74 See Plot Plan
8-29-74 See Plot Plan
a-29-74 See Plot Plan
a-29-74 See Plot Plan
8-29-74 See Plot Plan
a-30-74 See Plot Plan
8-30-74 See Plot Plan
e-30-74 See Plot Plan
9-3-74 See Plot Plan
g-3-74 See Plot Plan
g-5-74 See Plot Plan
3-5-74 See Plot Plan
3-5-74 See PlotPlan
3-5-74 See Plot Plan
3-5-74 See Plot Plan
?-6-74 See Plot Plan
3-6-74 See Plot Plan
3-6-74 See Plot Plan
3-6-74 See Plot Plan
9-1-14 See Plot Plan
9-7-74 See Plot Plan
75.5' 10.2
64.5' 7.0
66.5' 6.7
67.5' 6.4
68.5' 9.9
76.5' 7.5
77.5' 11.7
78.5' 11.1
58.5' NG 7.5
58.7' NG 8.4
59.7' FG 8.1 I 60.9' FG 8.7
60.5' 9.0
56.5' io.5
58.5' 10.5
61.0' FG 5.8
62.2' FG 6.4
61.7' FG 5.5
61.6' FG 5.8
60.3' FG 6.1
64.0' FG 5.8
78.5' FG 9.3
64.4' 9.0
68.2' 9.6
58.3' FG 7.D
78.6' FG 8.7
ELEV. OR
DEPTH OF MOIST.
DRY DEN.
LBS. I
CUE FT.
112.0
121.0
121.1
121.1
121.9
123.2
114.3
111.4
121.0
121.0
121.4
123.7
124.~2
119.4
116.0
117.3
117.9
117.6
118.3
120.1
119.7
132.8
125.3
125.2
125.0
122.0
TYPE .
5
4
4
4
5
4
5
5
4
4
4
4
4
2
2
7
7
7
7
7
7
4
4
4
4
4
90.5
90.1
90.2
90.2
90.4
91.7
92.3
90.0
90.1
90.1
90.4
92.1
92.5
93.8
91.1
90.3
90.8
90.5
91.1
92.5
92.1
98.9
93.a
33.2
93.0
90.8
-
- SCT 210081
.
.h'_l.UIMlX! DRY E?.::CITY DTTE?.?ECKATIONS
LABORATORY STANDARDS
,- Soil Opt. Moist. Max. Dry Den.
Type Soil Description (Percent) (Lbs./Cu. Ft.)
- 1 Dark Brown, Silty Sand 10.2 125.1
2 Medium Brown, Clayey Sand 10.6 127.3
3 Light Olive-Green, Silty Sand 12.0 118.9
.~ 4 Dark Reddish-Brown, Silty Sand 8.0 134.3
5 Olive, Silty Sand 11.2 123.8
- 6 Yellow-Brown, Clayey Silty Sand 11.0 124.9
7 Dark Red-Brown, Silty Sand 8.4 129.9 -
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