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.
D-Flow Slide is developed specifically for geotechnical engineers. It is a tool to perform a (semi-probabilistic) global and (probabilistic) detailed safety assessment on flow sliding in submerged slopes in front of flood defences. Moreover, it includes two advanced calculation models for analyzing static liquefaction and breach flow, that can be used for a tailor-made safety assessment, if the global and detailed assessments fail.
The graphical interfaces requires just a short training period, allowing users to focus their skill directly on the input of the geotechnical data and the subsequent evaluation of the calculated results.
Please double check always your input data of the advanced carefully and discuss the results with @Dick Mastbergen or @Geeralt van den Ham (Deltares)
In this paragraph the major input screens and windows are explained on the basis of a Tutorial (bm-1-1).
The input file can also be downloaded, if you have a legal version of the program.
Main Window: The Cross Section of the problem
All input windows can be found at the Menu bar.
Project contains all input windows for the different models. Only the soil parameters per layer has to be added in the Soil table
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In this tutorial we start with the three standard models
The Soil table for the Global and Detailed models (check the filter) contains several parameters.
The description of all these parameters can be found on the page Input parameters.
Add a soilprofile by using de soillayers from the Soil Table.
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Add a surface line.
The 5 characteristics point are obligated
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The description of these parameters can be found on the page Input parameters.
Add some additional parameters for the models.
| The detailed model needs some extra parameters. The probabilistic parameters are fixed, Only the Mean "Area ratio" can be changed.
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When all parameters have been inserted, you can start the calculation.
If one of the parameters are out of range, a validation message will be given in the table window
When no errors are found, the results are presented. In this case both the global and the detailed model fail.
In this case both standard models fail and the user have to use the advanced models.
The global results:
The detailed results can be found in two different windows:
The advanced models.
In case the global and detailed models both fail, we have to perform an analysis with the advanced models for static liquefaction and/or breach flow.
Select the Advanced models for static liquefaction (Sliq2D) and breach flow (HMBreach) at Project Info and 5 Charts will be shown.
Check the addional soil table parameters for liquefaction: (Set the filter in the soil table on Advanced Liquefaction)
Check the addional soil table parameters for breach flow: (Set the filter in the soil table on Advanced Breaching)
Additional parameters for liquefaction
Additional parameters for breach flow
Restart the calculation. In this case the advanced models indicate no failure of the embankment (both are green).
Download the file of this tutorial to check your legal version.
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