Page 456 - NGTU_paper_withoutVideo
P. 456
Modern Geomatics Technologies and Applications
(4)
For monitoring of dam safety, dam deformation analysis has been performed by finite
element method using GEO-Studio software, for the four cross-sections of dam at
intervals of 160, 260, 360 and 420 meters. For evaluating the stress distribution in dam
body, we have used static stress analysis using FEM. Also, non-linear elastic model
(Hyperbolic Non-Linear Elastic model) was utilized in FEM analysis for core section
of dam and linear-elastic model for the rest of dam's structure.
The following steps were performed for finite element analysis:
1. Forming geometry of structure (dam)
2. Determination of physical properties of materials (layers forming the dam)
3. Gridding (Mesh) the boundaries
4. Determination of the boundary conditions
5. Determination of the forces acting on the dam (the weight of dam and the
water pressure of reservoir)
Two major loads including the weight of dams (Gravity Load) and the weight of
water (Water Load) have already been considered in this analysis (Figure 8).
