Construction for placing a pool into the ground

- a pool is placed into the ground
- a metal frame with plates needs to be constructed to hold the soil
- the metal frame needs to hold wood planks to access the pool
- a foundation in the whole is necessary

the goals are:
- all exact measurements for the metal frame and the plates to build it
- dimensions of the hole
- informations how to set up the foundation for the pool
- safety analysis; is the foundation stable ? can water flow away ? does the metal frame hold ?