Index: DamEngine/trunk/doc/Dam Engine - Functional Design/REQDataGenerationWater.tex
===================================================================
diff -u -r2797 -r5005
--- DamEngine/trunk/doc/Dam Engine - Functional Design/REQDataGenerationWater.tex	(.../REQDataGenerationWater.tex)	(revision 2797)
+++ DamEngine/trunk/doc/Dam Engine - Functional Design/REQDataGenerationWater.tex	(.../REQDataGenerationWater.tex)	(revision 5005)
@@ -117,20 +117,34 @@
 If the waterheight is below Z value of Dike to at river, schematisation of the phreatic line is not possible and a validation message is given. See also ../repos/dam/DamOverall/trunk/doc/DAM/General/-OverviewDataUIAndEngine.xlsx
 
 \section {Initial schematisation of piezometric heads}\label{sec:InitialPiezoHeads}
-\ProgramName can manage a maximum of two aquifers. \ProgramName also takes the penetration layer (TAW, 2004) into account. For the time being, this option works only with 1D soil profiles. If the calculations have to be made without a penetration layer, a value of 0 should be entered (attribute: PenetrationLength).
+\ProgramName defines the aquifers from bottom to top (in the direction of the surface). 
+A piezometric line (PL3) is assigned to the bottom layer (which is also an aquifer) (\autoref{fig:wsp_1WL}). The pore pressures in the penetration layer are schematised using PL2. PL4 will be allocated to any additional aquifer. \autoref{tab:piezolines} gives an overview of the various piezometric lines and associated schematisation.
 
-\ProgramName defines the aquifers from bottom to top (in the direction of the surface). A piezometric line (PL3) is assigned to the bottom layer (which is also an aquifer) (\autoref{fig:wsp_1WL}). The pore pressures in the penetration layer are schematised using PL2. PL4 will be allocated to any additional aquifer. \autoref{tab:piezolines} gives an overview of the various piezometric lines and associated schematisation.
-
 If several aquifers are stacked in succession one above the other, \ProgramName will allocate the same PL to all of them, assuming a hydrostatic range for the pore pressures. The separation between the aquifer and cohesive layer is then determined by the top of the highest aquifer in the stack.
 
-For the purposes of the stability calculations, \ProgramName schematises the piezometric heads in the vertical direction using linear interpolation in the soft layers. A hydrostatic range is assumed in the dike body, the soil layers where the phreatic plane is located and the aquifers. 
+For the purposes of the stability calculations, \ProgramName can schematise the piezometric heads in the vertical direction using different options:
+\begin{itemize}
+	\item DAM Standard
+	\item Linear
+	\item Hydrostatic
+	\item Full hydrostatic 
+	\item Semi time dependent
+\end{itemize}
 
+Refer to the user manual of DAM for a detailed description of each option.
+
+\ProgramName takes the penetration layer (TAW, 2004) into account only for the ``Semi time dependent'' option (\autoref{fig:wsp_1WL}).
+If the calculation is made with this model and with a penetration length of 0 (attribute: PenetrationLength),  
+a warning message is displayed.
+If the calculation is made with a model different from ``Semi time dependent'' and with a penetration length > 0,  
+then a warning message is also displayed.
+
 \begin{table}[H]
 	\centering
-		\begin{tabular}{ |p{25mm} |p{100mm} |}
+		\begin{tabular}{|p{25mm}|p{100mm}|}
     \hline
 \textbf{PL}	& \textbf{Description}	\\ \hline
-\textit{PL1} & Phreatic line. For stability calculations with a stationary phreatic plane. The  schematisation for PL1 is described in \autoref{sec:PhreaPlane}\\ \hline
+\textit{PL1} & Phreatic line. For stability calculations with a stationary phreatic plane. The schematisation for PL1 is described in \autoref{sec:PhreaPlane}\\ \hline
 \textit{PL2} & The pore pressure at the top of the penetration layer. The PL2 is not affected by the piezometric head in the underlying aquifer and it is constant (in other words, there is no damping) over the entire width of the cross-section. The user enters the value for PL2 (attribute: HeadPL2), as well as the thickness of the penetration layer. DAM 1.0 uses the PL2 only if the thickness of the penetration layer >0 m.\newline
 Note: at present, the use of PL2 is still limited to 1D soil profiles.
 \\ \hline
@@ -151,7 +165,7 @@
 \begin{figure}[H]
 	\centering
 		\includegraphics[width=1\textwidth]{pictures/wsp_1WL.png}
-	\caption{Schematization of the water pressures in 1 aquifer situation}
+	\caption{Schematization of the water pressures in 1 aquifer situation for model ``Semi time dependent''}
 	\label{fig:wsp_1WL}
 \end{figure}