Geoscience Reference
In-Depth Information
(i)
(i)
∆
y=150cm
∆
y=82cm
Dense Sand
Loose Sand
FreeField
FreeField
building
building
0
0
h/H=1%
h/H=2%
h/H=3%
h/H=4%
h/H=5%
h/H=1%
h/H=2%
h/H=3%
h/H=4%
h/H=5%
−
0.5
−
0.5
−
1
−
1
−
1.5
−
1.5
free-field
−
2
−
2
(ii)
(ii)
−
2.5
−
2.5
0
5
10
15
20
25
30
0
5
10
15
20
25
30
building
building
0
0
h/H=0%
h/H=0%
−
100
100
−
h/H=5%
−
200
−
200
−
300
−
300
h/H=5%
(iii)
(iii)
−
400
−
400
0
5
10
15
20
25
30
0
5
10
15
20
25
30
120
120
building
building
80
80
free-field
40
40
0
0
(iv)
(iv)
40
−
40
−
0
5
10
15
20
25
30
0
5
10
15
20
25
30
Distance (m)
Distance (m)
Fig. 9.5. FR-SFSI analysis of 2-storey, B
=
20m building witha 1.3m thick
16m: (i) deformed mesh and plastic strain,
(ii)vertical displacement at the surface, (iii)contact pressures p, and (iv) distortion
angle
slabfoundation. Fault rupture at s
=
β
.The resultsof the FR-SFSI analysis (redlines) arecompared withthe free-field
results(bluelines) forh
/
H
=
1to5%
towardsthehangingwall.Inbothcasesoflooseanddensesandafaultscarpdevel-
ops beneath the building. The foundation maintains always contact at its left edge
and at its middle part. In dense sand, moving from left to right, there is first a
small part of the building b
L
≈
2m that is in contact, followed by an uplifted
portion, u
L
≈
4m, then the middle part that remains in contact, b
R
≈
10m,
