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Plate 4
Geologic Cross Sections
Swenson Residence
77-210 Loma Vista
La Quinta, Riverside County, California
Earth SystemseSouthwest
3/0812013 File No.: 12124-Ol
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Plate 5
Geologic Cross Sections
Swenson Residence
77-210 Loma Vista
La Quinta, Riverside County, California
Earth Systems
Southweste
3t08120t3 File No.: 12124-01
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Safety Factor {.0.0
0.2
0.5
0.1
1.0
1.2
1.5
L,7
2,4
2.2
2.5
2.7
3.0
3.2
2E,
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4.0
4.2
4.5
4.7
5.0
5.2
5.5
5.7
6.0
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ilry
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oo 12 to 18 ft wall heights
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-20 -10 q 5 10 15 20 25
SLIDE - An Interactive Slope Stability Program
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Dnwn 8y l:78l*?trBr-'' .fiqsmf,?##
lJDBflBrnf curs 5lLl20t5, 12:56:05 PM
Ddte
Oesciption
nte Name Swenson 12 to 18ft walls (B-B') Seismic.slim
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Foqtrne9eslgo on Gridline F
Shear Per Line = 6,612 lb (ASD)
Length of Panel = 9.33'
Total Length of Panels in Gridline 9.33'
Shear per Wall = 6,6!2 lb
b=36"h=18"d=L5"tsrab
Try: 4 - # 5 top and Bottor- As =
Soil Bearing Pressure =
f'. = 2,500 psi
Fy = 60 ksi
W.on. = 150 pcf
4" L.r, = 2.50'
1,500 psf
L.23 in2
Overturnine Moment:
Effective Height of Shear = 15.50'
M, = t02.49 ft -k x L.0
l_8'd l_5"
L - Lr** 2L..*9.3' +
Resisting Dead Load
Roof: = 2O.A
Wall: = 15.0
Floor: = 2A.O
Slab: =
Cont. Ft"g. =
Pad Ft'g. =
Soils Wt. =
P = 28,786
psf x
psf x
psf x
150
L50
150
110
lb
21.5'
15.5'
.0'
pcf x
pcf x
pcf x
pcf x
X
x
9.3'
9.3'
9.3'
xL
=
=
x
x
x
x
4,0L2 lb
2,169 lb
0lb
tshb = 150 pcf x 3.0'
L - 150 pcf x l-.5' x
L - 150 pcf x 4.0' x
L - 110 pcf x .25' x
xP= 0.6 x 28,786
b- 36"A,
X
b
h
h
h
P,
xb
xb
xb
x L4.3' x .33'
3.0' x 14.3' =
4.0' x 4.0' =
3.0' x 1.4.3' =
lb = 17,27L lb
= 2,150 lb
9,673 lb
9,600 lb
1,182 lb
0.6
L24
1 xPrx L
rvrResist -
2
Soil Bearing Pressure:
e = Mor /P 102.s /28.8 =
L4,3' I 2
3.55 ft
- 3.6'= 3.6 ftL1 =t Ll2 "] = t I 1/3 increase f or seisnic
2xP 2 x 28,786 lb
Q ,.*L775 psl < 2000 psf3xbxL1 3x 3.0'X 3.6'
Check Moment and Shear Capacitv
M,= t,775 psf x 1..67 x 3 ft x 2.5 ft n 21 2 27.78 ft -k
Asxfy 0.96 ina
0t\A n
0.85 f'. x b
0.9 xArx f, x d -J
V u = 27.78 ft -k /
=0.85x2xb
9.3'2.98 k
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U2
@Y,xd I 45.9k > 3.0 k
Provider' 36" wide x
/18" Deep Cont. Footing w/ 4 # 5 Top & Bottom
L
Mor = L02.49 ft -k
= L02.5 ft -k
h
7 x 2.5' = L4.3 ft.