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Modern Geomatics Technologies and Applications

Monitoring of Masjed-Soleyman Earthfill Dam by Comparison of
Geodetic, Geotechnical and Analytical Methods

L. Emadadli 1*
1 Behbahan Khatam Alanbia University of Technology, Engineering Faculty
emadali@bkatu.ac.ir

Abstract:
Certainly one of the main engineering structures are dams. Therefore, it is vital to

monitor the deformation of these structures with high precision methods and
instruments. In this paper, deformation of Masjed-Soleyman earthfill dam has been
evaluated by three methods: (1) conventional terrestrial surveying method, (2)

instrumentation with high precision geotechnical devices such as extensometers,
strain meters, settlement gauges, etc., (3) analytical (numerical) methods, for

instance finite element method. Given that the procedure of deformation and
especially subsidence is abnormal in this dam, deformation analysis has been created
using 18 epochs of micro-geodesy observations and recorded data of

instrumentations installed inside the embankment of dam. Outcome of two methods
show good accordance with each other and help us to calibrate the FE model as a

boundary condition. Also, finite element analysis was done with GeoStudio
Software, Version 7.0 to predict the movement of dam in future and to save lots of
living of people which have settled across and downstream of the dam.

Key Words: Monitoring Earthfill Dam, Terrestrial Surveying Methods,
Instrumentation Method, Finite Element Method

1 Corresponding Author