Lesson 08 - Shallow Foundations
Lesson 08 - Shallow Foundations
Lesson 08 - Shallow Foundations
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Footings on IGMs and Rocks<br />
gUse theory of elasticity<br />
δ<br />
v<br />
=<br />
C<br />
d<br />
Δp B<br />
E<br />
f<br />
m<br />
(1 −<br />
ν<br />
2<br />
)<br />
where: δ v = vertical settlement at surface<br />
C d = shape and rigidity factors (Table 8-12)<br />
Δp = change in stress at top of rock surface due to applied footing load<br />
B f = footing width or diameter<br />
ν = Poisson’s ratio (refer to Table 5-23 in Chapter 5)<br />
E m = Young’s modulus of rock mass (see Section 5.12.3 in Chapter 5)
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