Soil Parameter Identification by Differential Evolution

Date

2013-06-26

Author

Dörtdivanlıoğlu, Berkin
Pekcan, Onur

Metadata

Show full item record

Item Usage Stats

94
views

0
downloads

In this study, a method to estimate the soil strength parameters (c': effective stress cohesion, Φ': residual friction angle) of a natural slope adopting inverse analysis via the meta-heuristic optimization algorithm, Differential Evolution, is proposed. A case study, the stability of a natural slope is analyzed to prove the effectiveness of the proposed method. During analysis, to evaluate the factor of safety, two rigorous methods, Spencer's method and Simplified Janbu method are utilized. An error function is constructed between calculated and known factor of safety. Then, this function is optimized within the desired tolerance. Results produced by the proposed algorithm are consistent with the laboratory data and field observations, and accurate enough to conduct further engineering analyses.

URI

https://hdl.handle.net/11511/82558

Conference Name

Soil Parameter Identification by Differential Evolution", IPDO, The 4th Inverse problems, design and optimization symposium, 26 - 28 Haziran 2013

Collections

Department of Civil Engineering, Conference / Seminar

Suggestions

OpenMETU
Core

Soil Uncertainty and Its Influence on Simulated G=G(max) and Damping Behavior Sett, Kallol; UNUTMAZ, BERNA; Çetin, Kemal Önder; Koprivica, Suzana; Jeremic, Boris (American Society of Civil Engineers (ASCE), 2011-03-01) In this paper, recently developed probabilistic elastoplasticity was applied in simulating cyclic behavior of clay. A simple von Mises elastic-perfectly plastic material model was used for simulation. Probabilistic soil parameters, elastic shear modulus (G(max)) and undrained shear strength (s(u)), needed for the simulation were obtained from correlations with the standard penetration test (SPT) N-value. It has been shown that the probabilistic approach to geo-material modeling captures some of the importan...
Formation of air-entraining vortices at horizontal water intakes / Zaloğlu, Cihan; Göğüş, Mustafa; Department of Civil Engineering (2014) The goal of this study is to estimate the critical submergence depths of horizontal water intakes that have symmetrical and asymmetrical approach flow conditions by using empirical equations. Therefore a series of experiments were performed in a reservoir-pipe system dominated by gravity and controlled by a valve. On account of adjustable lateral walls, symmetrical and asymmetrical flow conditions were created at various Froude numbers. For a wide range of discharges and for three different pipe diameters, ...
Estimation of the Hurst parameter for fractional Brownian motion using the CMARS method Yerlikaya-Ozkurt, F.; Vardar Acar, Ceren; Yolcu-Okur, Y.; Weber, G. -W. (2014-03-15) In this study, we develop an alternative method for estimating the Hurst parameter using the conic multivariate adaptive regression splines (CMARS) method. We concentrate on the strong solutions of stochastic differential equations (SDEs) driven by fractional Brownian motion (fBm). Our approach is superior to others in that it not only estimates the Hurst parameter but also finds spline parameters of the stochastic process in an adaptive way. We examine the performance of our estimations using simulated tes...
Mathematical Modeling of Turbulent Flows of Newtonian Fluids in a Concentric Annulus with Pipe Rotation SORGUN, MEHMET; Aydın, İsmail; ÖZBAYOĞLU, Evren; SCHUBERT, J J (2012-03-01) In this study, a mathematical model is proposed to predict flow characteristics of Newtonian fluids inside a concentric horizontal annulus. A numerical solution, including pipe rotation, is developed for calculating frictional head losses in concentric annuli for turbulent flow. Navier-Stokes equations are numerically solved using the finite differences technique to obtain the velocity field. Experiments with water are performed in a concentric annulus with and without pipe rotation. Average fluid velocitie...
Shape optimization with the biological growth method: A parameter study Tekkaya, AE; Guneri, A (1996-01-01) Studies the effect of parameters controlling the biological growth method by applying it to the classical optimization problem of a plate with a central hole under biaxial stress state. It has been found that the optimization character of the method depends strongly on the so-called reference stress. Depending on the magnitude of this parameter either a local or global optimum is approached. A global optimum corresponds to the minimum possible v. Mises stress along the hole boundary (and hence in the plate)...

Citation Formats

B. Dörtdivanlıoğlu and O. Pekcan, “Soil Parameter Identification by Differential Evolution,” presented at the Soil Parameter Identification by Differential Evolution”, IPDO, The 4th Inverse problems, design and optimization symposium, 26 - 28 Haziran 2013, 2013, Accessed: 00, 2021. [Online]. Available: https://hdl.handle.net/11511/82558.