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This check should be performed only if the damage criterion (step 1a) is not met (i.e. a flow slide does not lead to damage). The result of this check will not result in a "failure" in the safety assessment, but only indicates that the slope protection may become unstable.
As this check has no influence on the final answer, it is therefore not performed and the answer is always "Not available".
Step 1c: Artificially underwater installed and non-compacted sandy foreland ?
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