4.40
16.50
4.60
17.25
4.80
18.00
5.00
18.75
5.20
19.50
5.40
20.25
5.60
21.00
5.80
21.75
6.00
22.50
6.20
23.25
6.40
24.00
6.60
24.75
6.80
25.50
7.00
26.25
7.20
27.00
7.40
27.75
7.60
28.50
7.80
29.25
8.00
30.00
Figure 10.2 shows example of open layer isochrone at time t with initial u increases linearly with depth. The area under isochrone curve between y = 0 and y = 8 is then sought. For doing so, FDC uses trapezoidal method (in h/m unit) in which the total area is cumulative sum of h/m segment areas done in a looping over values of re‐input dZ and IP. A detailed code can be found in FDC program in the Attachment.
10.1 APPLICATION 1 The profile of excess pore water pressure (u) over the depth in saturated clay layer from impact load is equal to the vertical stress distribution below foundation as in Problem 4 of Chapter 3, as shown in table below:
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