Hi,

While calculating the x-area of piles in the example why are we using the moment of inertia calculation formula?

```
> ; Include end-bearing effect
> struct link create side=2 target zone group 'End' range position-z 5.9 6.1
> struct link attach x=normal-yield y=free z=free range group 'End'
> struct link attach rot-x=free rot-y=free rot-z=free range group 'End'
> struct link property x area=[math.pi*d^4/64] stiffness=1e6 ...
> yield-compression=0 yield-tension=1e20 range group 'End'
```

Also in the documentation, it is mentioned that the bulk modulus of water used 2e05 Pa but In fact, it is 2e06 Pa. This should be a typo, right? It should be in kPa.

The fluid modulus is assigned a non-zero value 2e5 Pa so that the deformation from the soil matrix can cause the change of pore-pressure. Note that a smaller water bulk modulus 2e5 Pa rather than the real water bulk modulus 2e6 Pa is assigned to compromise the effect the free surface of water table (water is not completely confined).

According to that Pore Pressure values in the graph should be in kPa’s?