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Oeverinscharing zandwinput Bergweg, Overijssel, 1997

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  Figure 1: Assessment schema for flow-slide

This document contains the requirements and functional design for a software kernel that computes the safety assessment of the failure mode flow slide.

Requirements

The functional requirements for D-FlowSlide are:

1. Every computation by D-FlowSlide deals with one surface level and a 1D Soil profile.
   
   
2. The original surface line as used in DAM or Ringtoets (WTI) contains a whole set of characteristics points. D-FlowSlide needs only a subset.
   
   
3. The

...

1. safety assessment consists of passing through different phases: 

A
• • A Global
check
• • check according to the global assessment rules given
in Toetsproces zettingsvloeiing;A Detailed check
• • in Toetsmethode zettingsvloeiing (versie 2, 22 februari 2016) ; A Global assessment is solely based on geometric characteristics of under water slope and levee,
  • A Detailed check according to the probabilistic assessment method described
in Toetsproces zettingsvloeiing;
• • in Toetsmethode zettingsvloeiing (versie 2, 22 februari 2016); In the detailed check also soil properties are taken into account. 
  • An Advanced check
, using two
• •  is usingthe  two advanced programs of Deltares:
    • Advanced check for static liquefaction, using the original program Sliq2D
    • Advanced check for breach flow,
using
• • •  using the original program HMBreach.

In the folowing paragraphs the functional  design for D-FlowSlide has been explained. Detailed documentes can be found in the literature list

The definition of the symbols used in this Background section can be found in the Symbols sub-section.the Symbols list.

Assessment scheme D-Flow Slide

The figure below shows the assessment scheme for D-Flow Slide, which largely corresponds with the steps in the safety assessment in WBI2017.

Figure 1: Assessment scheme for D-Flow Slide

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