To limit the probability that using inappropriate design pressures will lead to the walls being unable to resist expected lateral pressure, which could lead to the cracking of foundations or building superstructures.
This is to limit the probability of compromised structural integrity, which could lead to:
This is to limit the probability of harm to persons.
To expand the application of Section 4.2. to walls supporting drained earth that are not constructed in accordance with Section 9.15.