Fa
  • Ph.D. (2007)

    Civil Engineering, Geotechnics

    , Sharif University of Technology,

  • M.Sc. (2000)

    Civil Engineering, Geotechnics

    , Tarbiat Modares University,

  • B.Sc. (1998)

    Civil Engineering - Civil Engineering

    , Isfahan University of Technology,

  • Numerical modeling in Geotechnical engineering
  • New Energy
  • Deep Excavation
  • Research field:

    Expert:

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Dr. Mohammad Oliaei is Assistant Professor of Civil Engineering. He joined the Geotechnical Group in the Department of Civil Engineering, Tarbiat Modares University, in 2008. He graduated with PhD from Sharif University of Technology in 2007 as the first rank student. In 2005, he was awarded a scholarship from British Council to continue his PhD studies at Cambridge University. He specializes in the area of geotechnical engineering and numerical modelling.

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Curriculum Vitae (CV)

Laboratory investigation of the NanoMontmorillonite clay effect on Strength and Plasticity properties of the clayey sand

ME Hosseini, M Oliaei, H Heidarzadeh
Journal Paper , , {Pages }

Abstract

Performance of Ground Anchored Walls Subjected to Dynamic and Pseudo-Static Loading

ASR Olia, M Oliaei, H Heidarzadeh
Journal Paper , , {Pages }

Abstract

Numerical investigation of the factors affecting the output power from heat exchanger piles

SM Fattahian, K Fordoei, M Oliaei
Journal Paper , , {Pages }

Abstract

3D Numerical Analyses for Optimization of Deep-Mixing Columns Combined by Raft Foundations

M Oliaei, H Heidarzadeh, S Mansouri
Journal Paper , , {Pages }

Abstract

Application of smoothed finite element method in coupled hydro-mechanical analyses

E Karimian, M Oliaei
Journal PaperScientia Iranica. Transaction A, Civil Engineering , Volume 26 , Issue 1, 2019 February 1, {Pages 234-245 }

Abstract

Smoothed Finite Element Method (SFEM) was introduced by application of the stabilized conforming nodal integration in the conventional finite element method. In this method, integration is performed on" smoothing domains" rather than elements. Smoothing domains are created based on cells, nodes, or edges for two-dimensional problems. Based on the smoothing domain creation method, different types of SFEM are developed that have different properties. It has been shown that these methods are insensitive to mesh distortion and are generally more computationally efficient than mesh-free and finite element methods for the same accuracy level. Because of their interesting features, they have been used to solve different problems. This paper invest

Evaluation of soil-nail pullout resistance using mesh-free method

M Oliaei, B Norouzi, SM Binesh
Journal PaperComputers and Geotechnics , Volume 116 , 2019 December 1, {Pages 103179 }

Abstract

Soil nailing has been widely used in the world during the last two decades; because of its technical and economical advantages. The shear strength versus displacement behavior of soil-nail interface has significant effects on economic and safety design of a soil-nail system. In this paper, by application of mesh-free method, MFM, a new approach is presented to investigate the behavior of interface in soil-nail pullout process and also the interaction between nail and surrounding soil. Simulation of soil-nail interface in mesh dependent methods such as finite element method, FEM, has been associated with problems of heterogeneous deformations.In the presented method, the problem domain and its boundary are represented by using sets of nodes

The Effect of Earthquake Frequency Content on the Internal Forces in the Tunnels Permanent Lining

Mohammad Oliaei, Rouhollah Basirat
Journal PaperJournal of Earthquake Engineering , 2019 November 28, {Pages 20-Jan }

Abstract

In this paper, the effect of earthquake frequency content on the tunnel permanent lining is studied. For this purpose, dynamic analysis of Gilavand tunnel was performed using 15 real accelerograms with different frequency contents by the finite difference method (FDM). Although accelerograms have the same maximum acceleration and duration, they are different in predominant frequency, peak particle velocity (PPV), peak particle displacement (PPD), and specific energy density (SED). The results showed that the closer the frequency of earthquakes to the ground natural frequency, the larger the forces and displacement in tunnel lining.

Development of a generalized model using a new plastic modulus based on bounding surface plasticity

Heisam Heidarzadeh, Mohammad Oliaei
Journal PaperActa Geotechnica , Volume 13 , Issue 4, 2018 August 1, {Pages 925-941 }

Abstract

Numerous attempts have been made to modify the generalized constitutive model and to introduce new constitutive models in the framework of generalized plasticity. The modified models can predict the behavior of sand fairly well, however, such models require many parameters and are difficult to calibrate. Moreover, it is highly desirable for a model to be able to reproduce soil behavior using a single set of parameters. In this paper, the constitutive model by Pastor and Zienkiewicz is further developed based on critical state and bounding surface models. The model is used to simulate the behavior of three types of sands under monotonic and cyclic loadings.

An efficient generalized plasticity constitutive model with minimal complexity and required parameters

Heisam Heidarzadeh, Mohammad Oliaei
Journal PaperKSCE Journal of Civil Engineering , Volume 22 , Issue 4, 2018 April 1, {Pages 1109-1120 }

Abstract

Numerical analyses precision performed by software, depends mostly on the accuracy of constitutive model. Therefore, the issue of accuracy has led to significant achievements in the development of constitutive models simulating the mechanical behavior of soils. However, these constitutive models often needs to a lot of parameters to be calibrated for each type of soil, and it’s considered as a disadvantage. especially, when the model parameters should be obtained through trial and error, the number of the parameters becomes a considerable issue. This paper presents an advanced constitutive model. Despite requiring much lower number of model parameters, it provides the same level of accuracy in compression of other advanced

Advanced Finite Difference Method for Study Energy Piles Behavior in Temperature Dependent Soils

Mohammad Oliaei, Mohammad Amir Kiani, Mahboubeh Torkaman
Conference PaperInternational Symposium on Energy Geotechnics , 2018 September 25, {Pages 105-112 }

Abstract

Recently, the use of energy piles with the dual purpose of supplying energy and the bearing of superstructures is becoming widespread. Providing a proper and efficient numerical analysis can help to accelerate this process. For this purpose, this study tried to develop some features of finite difference method which is used in Thermo-Pile. The proposed numerical model can consider the effects of soil temperature dependence on energy piles behavior. Another capability of the proposed method to model temperature distribution in surrounding soil could result in applying temperature effect on soil behavior. This study has shown that there are good agreements between numerical results and experimental observations. Relating side s

Seismic stability of slopes reinforced with sleeved and unsleeved piles

Mohammad Oliaei, Hamid Tohidifar
Journal PaperEuropean Journal of Environmental and Civil Engineering , 2018 March 11, {Pages 29-Jan }

Abstract

The development of urban areas in hilly portions of the ground has caused the construction of high rise structures on slopes which sometimes are in a marginal stability. In order to decrease the lateral loads transferred from piles to slopes especially at shallow depths, it is suggested to use of compressible materials such as polystyrene or geofoam as an annulus or sleeve located all-round the outer periphery of concrete piles. The dynamic soil-sleeved pile interaction has not been reported in the literature before. In this paper, 3D finite-difference dynamic analyses using an elastoplastic constitutive model considering dynamic properties of the soil are carried out to study the dynamic soil–pile interaction for both sleeved and unsleev

Comparison of Static Wave Ratio and transfer Function Method in Determining the Sound Absorption Coefficient of Materials

R Golmohammadi, M Oliaei, M Aliabadi, R Shahidi, MO Movafagh
Journal Paper , , {Pages }

Abstract

The toxicology of silica nanoparticles: A review

P Mohammadi, M Abbasinia, MJ Assari, M Oliaei
Journal Paper , , {Pages }

Abstract

An ergonomic intervention to relieve musculoskeletal symptoms of assembly line workers at an electronic parts manufacturer in Iran

H Daneshmandi, D Kee, M Kamalinia, M Oliaei, H Mohammadi
Journal Paper , , {Pages }

Abstract

Efficiency of cellular geosynthetics for foundation reinforcement

Mohammad Oliaei, Saeed Kouzegaran
Journal PaperGeotextiles and Geomembranes , Volume 45 , Issue 2, 2017 April 1, {Pages 22-Nov }

Abstract

A numerical simulation of geocell-reinforced foundation beds is reported. The three-dimensional geocells and soil are simulated separately using FLAC3D Finite Difference software. A single geocell-reinforced soil is modeled and the results compared with those from a laboratory test in the literature. The model is extended to geocell foundation beds. The placement conditions in which the geocell layers have the highest efficiency (highest bearing capacity with the lowest cost) are determined. Also, a comparison is made between the performance of cellular geosynthetic reinforcement and a planar form with the same mass of used material (as two reinforcing systems with similar materials but different behavior mechanisms) to identify the system

Dynamic behavior of large-diameter piles with considering liquefaction under clay layer

M Oliaei, A Ghotbi
Journal PaperScientia Iranica , Volume 24 , Issue 6, 2017 December 1, {Pages 2665-2683 }

Abstract

Marine structures are mostly constructed on deep foundations, namely large-diameter piles. Such support structures are driven into deposits of saturated granular soil, which is vulnerable to liquefaction under loadings of dynamic nature, eg, earthquakes. Although numerous studies have been accomplished to obtain a comprehensive understanding of their performance during liquefaction, a conclusive study has not been presented for the specific case of large-diameter piles under a clay layer. This issue has great importance in case of offshore wind turbines, since they are very sensitive to dynamic loadings. In this study, a 3D FEM model was constructed by OpenSeesPL to explore soil and pile responses throughout liquefaction. To capture the pre

해외저널 소개

DF Fagundes, MSS Almeida, L Thorel, M Blanc, M Oliaei, S Kouzegaran, ...
Journal Paper , , {Pages }

Abstract

NUMERICAL ANALYSIS OF GEOCELL REINFORCED FOUNDATION SAND BEDS AND COMPARISON OF CELLULAR AND PLANAR GEOSYNTHETIC REINFORCING SYSTEMS

S KOUZEGARAN, M OLIAEI
Journal Paper , Volume 322 , Issue 31, 2016 January 1, {Pages 11-Mar }

Abstract

Geocell is a three-dimensional geosynthetic product which can be used to stabilize foundations by increasing bearing capacity and reducing settlements. Geocells have completely different mechanisms compared to the traditional forms of geosynthetics (planar geosynthetics). Their three dimensional geometry causes extreme lateral confinement for the infilled soil, which leads to an increase in soil strength and stiffness and a decrease in surface permanent-deformation.

EVALUATION OF THE EFFECT OF YIELD SURFACE SHAPE ON STATIC AND DYNAMIC ANALYSES OF GEOTECHNICAL STRUCTURES

H HEIDARZADEH, M OLIAEI
Journal Paper , Volume 322 , Issue 12, 2016 January 1, {Pages 15-26 }

Abstract

In geotechnical engineering, yield surface (criterion) is a subject that has attracted the attention of a large number of researchers in both fields of experimental and constitutive modeling. Various yield surfaces have been introduced by different investigators, of which, Mohr-Coulomb and Drager-Prager criteria are the most famous. Generally, yield criteria are used in constitutive model structures. On the other hand, the final aim is to apply these constitutive models in numerical analyses of geotechnical engineering problems. Therefore, the question which arises here is; how high is the degree of effect of these yielding surfaces on numerical analyses of geotechnical problems, and also, is a more accurate yielding criterion needed or not

NUMERICAL ANALYSIS OF GEOCELL REINFORCED ROAD EMBANKMENTS AND EVALUATION OF EFFECTIVE PARAMETERS ON THE PERFORMANCE OF GEOCELL REINFORCING SYSTEM

S KOUZEGARAN, M OLIAEI
Journal Paper , Volume 312 , Issue 42, 2016 January 1, {Pages 13-23 }

Abstract

The use of reinforced soil has been considered since long ago. Due to the improvement in technology, different kinds of reinforcement, including geosynthetic and steel types, have emerged. Geocells, as a special type of geosynthetic, have recently been used for soil improvement. Their three dimensional geometry causes extreme lateral confinement for infill soil. This phenomenon leads to increased soil deformability and strength properties. The geocell reinforcement system is in the process of practical development due to its several advantages.

Current Teaching

  • MS.c.

    Marine Geotechnics

Teaching History

  • Ph.D.

    Advanced Finite Element Methods (Nonlinear)

  • MS.c.

    Advanced Soil Mechanics

  • 2021
    Amini Morabi, Sajedeh
    Experimental investigation of the effect of microbially induced calcite precipitation (MICP) stabilization on the durability and resistance of desert aeolian sand soils

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