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Benchmark

D-FLOW SLIDE

Relative error

Step 1a:

Would flow slide lead to damage on levee?

Marge [m]

Slope [1:xxx]

Assessment level [m + NAP]

 

Yes

25.352

15.000

-10.775

 

Yes

25.352

15.000

-10.775

 

OK

0.00 %

0.00 %

0.00 %

Step 1c: Artificially underwater installed and non-compacted sandy foreshore?NoNoOK

Step 1d:

Flow slide possible based on criteria "steepest slope aver 5m" ?

Average slope over a height of at least 5 m [1:xxx]

 

No

7.099

 

No

7.100

 

OK

0.01 %

Step 1e:

Flow slide possible based on average geometry only?

Total inclination of the channel slope [1:xxx]

Is breaching possible?

 

No

7.100

No

 

No

7.100

No

 

OK

0.00 %

OK

Result of the Global check

Pass

Pass

OK

Fictive channel depth Hr [m]25.87425.8740.00 %
Fictive slope cotan αr6.6416.6410.00 % 
Max. allowable retrogression length Lallowable [m]60600.00 %
Probability of preventing a liquefaction P(ZV) [/km/year] 2.65 × 10-72.65 × 10-70.00 %
Reliability index β-0.974-
P(L > Lallowable)1.65 × 10-11.65 × 10-10.00 %
Probability of flood damage by liquefaction P(falen|ZV) [/year]4.38 × 10-84.38 × 10-80.00 %
Allowable probability of failure [/year]2.50 × 10-6 2.50 × 10-60.00 %

Result of the Detailed check 

Pass

Pass

OK 
Overall result

Pass

Pass

OK 

 

 

Results of benchmark 3-1 for case H:

 

Benchmark

D-FLOW SLIDE

Relative error

Step 1a:

Would flow slide lead to damage on levee?

Marge [m]

Slope [1:xxx]

Assessment level [m + NAP]

 

Yes

25.352

15.000

-10.775

 

Yes

25.352

15.000

-10.775

 

OK

0.00 %

0.00 %

0.00 %

Step 1c: Artificially underwater installed and non-compacted sandy foreshore?NoNoOK

Step 1d:

Flow slide possible based on criteria "steepest slope aver 5m" ?

Average slope over a height of at least 5 m [1:xxx]

 

No

7.099

 

No

7.100

 

OK

0.01 %

Step 1e:

Flow slide possible based on average geometry only?

Total inclination of the channel slope [1:xxx]

Is breaching possible?

 

No

7.100

No

 

No

7.100

No

 

OK

0.00 %

OK

Result of the Global check

Pass

Pass

OK

Fictive channel depth Hr [m]25.87425.8740.00 %
Fictive slope cotan αr6.6416.6410.00 % 
Max. allowable retrogression length Lallowable [m]60600.00 %
Probability of preventing a liquefaction P(ZV) [/km/year] 6.66 × 10-46.66 × 10-40.00 %
Reliability index β-0.974-
P(L > Lallowable)1.65 × 10-11.65 × 10-10.00 %
Probability of flood damage by liquefaction P(falen|ZV) [/year]1.10 × 10-41.10 × 10-40.00 %
Allowable probability of failure [/year]2.50 × 10-7 2.50 × 10-70.00 %

Result of the Detailed check 

FailFailOK 
Overall result

Warning

Warning

OK