dear all,
my aim is to investigate steel piles in soil. Hence, I need to model the interaction between soil and shell elements. there are the following possibilities:

- with *foundation
- with springs
- with connectors

1. Which method is recommendable?
2. If I e.g. have a planar shell plate with e.g. 50 nodes and I want to simulate the soil with connectors connected to the "ground" one-sided, how do I do this in CAE... pick all nodes seperately? And how do I define from which side the connectors are attached?

thanks for response,
Anton