Perform a calculation and the results will be displayed

 

When all parameters have been specified, you can start the calculation by using the blue arrow-head in the menu bar    or press the key F9

 

If one of the parameters is out of range or missing, a validation message will be given in the table window "Validation messages"

 

 

When no errors are found, the results are presented in the window "Results"

In this version there is no extended report of the results.

7.1 Overall results

 

In this case both the Global check fails and Detailed check passes. However, since a very fine sand was selected, the detailed check is formally not applicable. For this reason the overall result gives a warning

 

7.2 Global results

Use the tab Global results to see the results. The method itself has been described the background part of this wiki manual

 

 

7.3  Detailed results

Use the tab Detailed results to see the results. The Detailed check has been described in detail the background part  of this wiki manual

 

 

As a resullt of the calculation three charts are shown:

The Global check, which is exclusively based on geometric characteristics of the under water slope and levee, fails. The leftmost chart above visualizes the check whether a flow slide leads to unacceptable damage to the levee (step 1a). On the assessment level (horizontal dotted line), the actual slope lies landward of the assessment profile (green dotted line). This means that a flow slide does lead to unacceptable damage to the levee.The middle chart shows whether a breach flow slide may occur or not at step 1e of the Global assessment. A breach flow slide can occur if the actual slope lies landward of the green dotted line. This is not the case in this situation. However,  the sand has been indicated to be very fine, which means that a breach flow cannot be excluded based on these geometric criteria only. An advanced analysis in HMBreach should be performed. The rightmost chart visualizes the results of the detailed check, in which also soil properties are taken into account. The red dotted line shows the profile after flow slide occurred, corresponding with a probability given in the tab with the detailed results (in this case 8.88E-05). In this case the calculated probability is smaller than the acceptable probability.

 

However, when the detailed check is not passed, the advanced models can be used for further analysis of the problem. In the folowing paragraph the input data of the advanced models are explained.

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