Find a formula in n , a , m , and d for the um ( a + m d ) + ( a + ( m + 1 ) d ) + ( a + ( m + 2 ) d ) + ... + ( a + ( m + n ) d ) , where m and n are integers n ≥ 0 and a and b are real numbers, Justify ypur answer.
Find a formula in n , a , m , and d for the um ( a + m d ) + ( a + ( m + 1 ) d ) + ( a + ( m + 2 ) d ) + ... + ( a + ( m + n ) d ) , where m and n are integers n ≥ 0 and a and b are real numbers, Justify ypur answer.
Solution Summary: The author explains how to determine the sum of n, a,m, and d.
Find a formula in
n
,
a
,
m
,
and d for the um
(
a
+
m
d
)
+
(
a
+
(
m
+
1
)
d
)
+
(
a
+
(
m
+
2
)
d
)
+
...
+
(
a
+
(
m
+
n
)
d
)
, where m and n are integers
n
≥
0
and a and b are real numbers, Justify ypur answer.
=
Q6 What will be the allowable bearing capacity of sand having p = 37° and ydry
19 kN/m³ for (i) 1.5 m strip foundation (ii) 1.5 m x 1.5 m square footing and
(iii)1.5m x 2m rectangular footing. The footings are placed at a depth of 1.5 m
below ground level. Assume F, = 2.5. Use Terzaghi's equations.
0
Ne
Na
Ny
35 57.8 41.4 42.4
40 95.7 81.3 100.4
Q1 The SPT records versus depth are given in table below. Find qan for the raft 12%
foundation with BxB-10x10m and depth of raft D-2m, the allowable
settlement is 50mm.
Elevation, m 0.5 2
2 6.5 9.5 13 18 25
No.of blows, N 11 15 29 32 30 44
0
estigate shear
12%
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