# Reinforced Drapery Meshes: A Design Method Accounting for Retaining Ropes Contribution
## 2 System Design
\begin{table}
\begin{tabular}{l l} \hline \hline
**Symbol** & **Meaning** \\ \hline \(A_{f}\) & Nominal area of the rope \\ \(A_{m}\) & Area of the single portion of mesh \\ \(A_{r}\) & Area of influence of the rope \\ \(C_{R,max}\) & Shear resistance contribution to slope stability due to the anchors \\ \(E_{r}\) & Apparent elastic modulus of the portion of rope \\ \(F_{m,D}\) & Design value of unfavorable actions on the sliding surface of the detached block \\ \(F_{m,Ed}\) & Design value of the actions on the sliding surface of the detached block \\ \(F_{m,S}\) & Design value of favorable actions on the sliding surface of the detached block \\ \(F_{s,Ed}\) & Design value of unfavorable actions on the slope sliding surface \\ \(F_{s,Rd}\) & Design value of favorable actions on the slope sliding surfaces \\ \(f_{g}\) & Deflection of the portion of rope due to gravitational load \\ \(f_{max}\) & Maximum allowable deflection of the portion of rope \\ \(f_{r,Ed}\) & Real total deflection of the portion of rope \\ \(f_{0}\) & Initial deflection of the portion of rope \\ \(FS_{slope}\) & Safety factor of the slope \\ \(FS_{slope,min}\) & Minimum allowable safety factor of the slope \\ \(g_{r,Ed}\) & Gravitational load (dead load) of the rope \\ \(i_{x}\) & Horizontal spacing between anchors \\ \(i_{y}\) & Vertical spacing between anchors \\ \(L_{i}\) & Length of the anchor in the weathered mass \\ \(L_{s}\) & Length of the anchor in the stable part of the rock mass \\ \(L_{p}\) & Length of the hole with plasticity phenomena for the anchor \\ \(L_{Tot}\) & Total length of the anchor \\ \(L_{0}\) & Undeformed length of the portion of rope \\ \(l\) & Distance between anchors \\ \(N_{a,Rd}\) & Tensile yield resisting force of the anchor \\ \(P_{m,Ed}\) & Design value of the actions normal to the mesh \\ \(q_{r,Ed}\) & Design value of the real load on the rope \\ \(q_{r,max}\) & Ultimate load on the rope \\ \(R\) & Resultant force on the anchor \\ \(s\) & Depth of the cortical weathered zone of the slope \\ \(T_{m,Ed}\) & Design value of the actions parallel to the mesh \\ \(T_{m,L,Ed}\) & Design value of tensile force acting on the lower part of the mesh portion \\ \(T_{m,u,Ed}\) & Design value of tensile force acting on the upper part of the mesh portion \\ \(T_{m,Rd}\) & Design value of the tensile resistance of the mesh \\ \(T_{r,Ed}\) & Design value of the tensile force acting on the rope \\ \(T_{r,Ed,max}\) & Design value of the maximum allowable tensile force acting on the rope \\ \(T_{r,g,Ed}\) & Design value of the tensile force acting on the rope due to the gravitational load \\ \(V_{b}\) & Volume of the possible unstable volume inside a portion of mesh \\ \(Z_{m}\) & Central displacement of the mesh during the laboratory test at \(P_{m,Ed}\) \\ \(\alpha\) & Orientation of the discontinuity set which creates the greatest released volume \(V_{b}\) \\ \(\beta\) & Inclination of the slope \\ \(\gamma_{2}\) & Model factor for mesh deformation \\ \(\delta\) & Dilatancy of the sliding surface \\ \(\Delta l_{g}\) & Elongation of the rope due to gravitational load \\ \(\Delta l_{max}\) & Maximum allowable elongation of the rope \\ \(e\) & Inclination of the anchor with respect to the horizontal \\ \(\eta\) & Working rate of the anchor \\ \(\theta_{0}\) & Inclination of the anchor with respect to the slope normal \\ \(\iota\) & Inclination of the force \(R\) \\ \(\rho\) & Angle of deformation of the mesh due to \(P_{m,Ed}\) \\ \(\phi\) & Friction angle of the sliding surface \(R\) \\ \hline \hline \end{tabular}
\end{table} 
Table 1: List of the mathematical symbols used in this work and their meaning.