154
10 A Sensitivity Analysis on the Gravity …
2(i)
2(ii)
ROOF
1
3
5
4
5
4
3
3000
3 0 0 0
1
2(i)
2(ii)
6
Rainfall
(a)
(b)
Fig. 10.2 Landscape simulator in which rainfall simulation experiments were conducted. All units
are in millimeters. a Blue print of the topography meter measurement system; b Pictures of the
experimental site. Keys: 1. Rainfall simulator; 2. Topography meter (i Camera with a collimator
and ii Laser source); 3. Positioning marks; 4. Model slope; 5. Equidistant horizontal projections;
6. Receiving pool
Table 10.1 Testing program
Test number
Lower slope configuration
Rainfall
Height (m)
Gradient (°)
Intensity (mm/min)
Duration (min)
Runs
L1
1.0
70
2.0
30
5
L2
1.0
80
2.0
30
5
L3
1.5
70
2.0
30
5
L4
1.5
80
2.0
30
5
L5
1.0
70
0.8
60
5
L6
1.0
80
0.8
60
5
L7
1.5
70
0.8
60
5
L8
1.5
80
0.8
60
5
L9
1.0
70
0.8
30
5
L10
1.0
80
0.8
30
5