Index: DamEngine/trunk/doc/Dam Engine - Functional Design/UseStabKernel.tex
===================================================================
diff -u -r1249 -r1279
--- DamEngine/trunk/doc/Dam Engine - Functional Design/UseStabKernel.tex	(.../UseStabKernel.tex)	(revision 1249)
+++ DamEngine/trunk/doc/Dam Engine - Functional Design/UseStabKernel.tex	(.../UseStabKernel.tex)	(revision 1279)
@@ -4,16 +4,30 @@
 For stabilily calculation the DAM engine uses the kernel used by D-Geo Stability 15.1
 This use is restricted to the options described in this chapter.
 
-\section{REQ.Model}\label{REQModel}
+\section{Model}\label{sec:Model}
 The DAM Engine must be able to make calculations with following models:
 		\begin{itemize}
 		\item Bishop
 		\item LiftVan (Uplift Van in D-Geostability)
 		\item Horizontal balance
 	\end{itemize}
 	
-	All models are available for inwards stability. For outward stability only Bishop is used.
+All models are available for inwards stability. For outward stability only Bishop is used.
+	
+The choice of the model is partly user-defined, partly automatic:\\
+User can choose Bishop, Uplift Van or combination Bishop/Uplift Van.\\
+User can not choose Horizontal balance, this is part of the RRD scenario selection, see \autoref{sec:UpliftCalculation}.
+	
+\subsection{Combination Bishop/Uplift Van}
+\label{sec:CombinationBishopUpliftVan}
 
+The combination Bishop/Uplift Van give three results:
+\begin{enumerate}
+	\item Bishop
+	\item Uplift Van (is made when \textit{\textcolor[rgb]{0.65,0.16,0}{UpliftCriterionStability}}) is higher than the uplift safety (see \autoref {sec:CheckUplift}). 
+	\item Normative result (lowest safety factor) of both.
+\end{enumerate}
+
 \section{Slip plane definition and calculation area}\label{sec:PlaneDeinitionAndCalculationArea}
 		
 \subsection{Grid generation}
