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Overall check: the Overall check gives a Warning message because D50 < 200 μm , an Advanced check is therefore needed.
Case F:
Global check - Step 1: Same results as benchmark 1-1 (flow 1a: Flow slide would lead to damage on levee ) => Go to step 31c.
Global check - Step 31c: The foreland is natural => Go to step 41d.
Global check - Step 41d: The slope channel is 1:6 so steeper average slope over a height of at least 5 m is 1:7.1 so softer than 1:7 4 => Flow slide is not possible based on geometry criterium "steepest slope over 5 m" => Go to step 51e.
Global check - Step 5: The state parameter is -0.06 so less than -0.05 => Liquefaction is not possible based on the state parameter => Go to step 6.
Global check - Step 6: The average diameters over a thickness of 5m are D50 = 250 μm and D15 = 150 μm. So no layers are present with D50 < 200 μm and D15 < 100 μm => Go to step 7.
1e:
D50 = 180 μm < 200 μm => Breaching is possible.
And the total slope is 1:7.1 so softer than 1:7
=> Flow slide is possible based on average slope => Global check failsGlobal check - Step 7: The slope channel is 1:2, so the slope is steeper than the critical (local) slope from the CUR table => Global check fails and Detailed check needed.
Detailed check: (see table below for intermediary results) Probability of flood damage by liquefaction > liquefaction < Allowable probability of failure => Detailed check failspasses.
Overall check: Global and Detailed checks fail, so the Overall check fails.
Case G:
Global check - Step 1: Same results as benchmark 1-1 (flow slide would lead to damage on levee) => Go to step 3.
Global check - Step 3: as Detailed check passes, the Overall check gives a Warning message because D50 < 200 μm , an Advanced check is therefore needed.
Case G:
: The foreland is natural => Go to step 4.Global check - Step 4: The slope channel is 1:6 so steeper than 1:7 => Flow slide is possible based on geometry 1a: Flow slide would lead to damage on levee => Go to step 51c.
Global check - Step 5: The state parameter is -0.06 so less than -0.05 => Liquefaction is not possible based on the state parameter => 1c: The foreland is natural => Go to step 61d.
Global check - Step 61d: The average diameters slope over a thickness of 5m are D50 = 250 μm and D15 = 150 μm. So no layers are present with D50 < 200 μm and D15 < 100 μm height of at least 5 m is 1:7.1 so softer than 1:4 => Flow slide is not possible based on criterium "steepest slope over 5 m" => Go to step 71e.
Global check - Step 71e:
The slope channel is 1:67.1, so the slope is softer than the critical (local) slope from the CUR table (not too fine sand with D50 = 230 μm and D15 = 130 μm) => Breaching is not possible.
And the total slope is 1:7.1 so softer than 1:7
=> Flow slide is not possible based on average slope => Global check passes.
Detailed check: (see table below for intermediary results) Probability of flood damage by liquefaction > liquefaction < Allowable probability of failure => Detailed check passes.
Overall check: as Global and Detailed check fails.pass, the Overall passes.
Overall check: Global passes and Detailed checks fails, that's not logical, so a warning message is displayed in the Overall check.
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