Volume 15 (2024)
Volume 14 (2023)
Volume 13 (2022)
Volume 12 (2021)
Volume 11 (2020)
Volume 10 (2019)
Volume 9 (2018)
Volume 8 (2017)
Volume 7 (2016)
Volume 6 (2015)
Volume 5 (2014)
Volume 4 (2013)
Volume 3 (2012)
Volume 2 (2011)
Volume 1 (2010)

Ranking and comparing of traditional and industrial coke making by TOPSIS technique in Shahrood Simin Coke Company

I. Montazeri; M. Taji

Volume 7, Issue 2 , July 2016, , Pages 165-173


  Various traditional and industrial coke making techniques were discussed based on their limitations and production capacities, and the criteria such as the quality and size of coke production, amount of coke crumb, amount of investment, amount of operational costs, labor force and mechanization. In this ...  Read More

Estimation of penetration rate of tunnel boring machines using Monte-Carlo simulation method

H. Dehghani; N. Mikhak Beiranvand

Volume 7, Issue 2 , July 2016, , Pages 175-184


  One of the most important parameters used for determining the performance of tunnel boring machines (TBMs) is their penetration rate. The parameters affecting the penetration rate can be divided in two categories. The first category is the controllable parameters such as the TBM technical characteristics, ...  Read More

Semi-quantitative environmental impact assessment and sustainability level determination of coal mining using a mathematical model

M. Ataei; E. Tajvidi Asr; R. Khalokakaie; K. Ghanbari; M. R. Tavakoli Mohammadi

Volume 7, Issue 2 , July 2016, , Pages 185-193


  Environmental impact assessment (EIA) has led to the dominance of planners on the natural environment of the regions, providing the possibility of continuously monitoring and controlling the status quo by management staff. In this regard, a new semi-quantitative model is presented for the EIA of the ...  Read More

Concentration and recycling of rare earth elements (REEs) from iron mine waste using a combination of physical separation methods

M. Moghise; M. Pourrahim; B. Rezai; M. Gharabaghi

Volume 7, Issue 2 , July 2016, , Pages 195-203


  This study aims to investigate and optimize the effects of the main parameters including the particle size, gravity and magnetic separation combination, high gradient magnetic separation, magnetic field intensity, shaking table slope, washing water flow, and electrostatic separation upon the rare earth ...  Read More

Detection and determination of groundwater contamination plume using time-lapse electrical resistivity tomography (ERT) method

S. Moghaddam; S. Dezhpasand; A. Kamkar Rohani; S. Parnow; M. Ebrahimi

Volume 8, Issue 1 , January 2017, , Pages 103-110


  Protection of water resources from contamination and detection of the contaminants and their treatments are among the essential issues in the management of water resources. In this work, the time-lapse electrical resistivity tomography (ERT) surveys were conducted along 7 longitudinal lines in the downstream ...  Read More

Numerical investigation of effect of crack geometrical parameters on hydraulic fracturing process of hydrocarbon reservoirs

A. Abdollahipour; M. Fatehi Marji; A. R. Yarahmadi Bafghi; J. Gholamnejad

Volume 7, Issue 2 , July 2016, , Pages 205-214


  Hydraulic fracturing (HF), as a stimulation technique in petroleum engineering, has made possible the oil production from reservoirs with very low permeability. The combination of horizontal drilling and multiple HF with various perforation angles has been widely used to stimulate oil reservoirs for ...  Read More

Commodity price uncertainty propagation in open-pit mine production planning by Latin hypercube sampling method

M. Mokhtarian Asl; J. Sattarvand

Volume 7, Issue 2 , July 2016, , Pages 215-227


  Production planning of an open-pit mine is a procedure during which the rock blocks are assigned to different production periods in a way that leads to the highest net present value (NPV) subject to some operational and technical constraints. This process becomes much more complicated by incorporation ...  Read More

Estimation of groundwater inflow situation using fuzzy logic: a case study (Beheshtabad water conveying tunnel, Iran)

M. Doustmohammadi; A. Jafari; O. Asghari

Volume 7, Issue 2 , July 2016, , Pages 229-238


  Water inflow is one of the most important challenges in the underground excavations. In addition to inducing working conditions and environmental problems, it decreases the stability and quality of the surrounding rocks. The direct method of measuring rock mass hydraulic conductivity consists of drilling ...  Read More

Permeability upscaling in fractured reservoirs using different optimized mother wavelets at each level

R. Vahedi; B. Tokhmechi; M. Koneshloo

Volume 7, Issue 2 , July 2016, , Pages 239-250


  We use a multi-resolution analysis based on a wavelet transform to upscale a 3D fractured reservoir. This paper describes a 3D, single-phase, and black-oil geological model (GM) that is used to simulate naturally-fractured reservoirs. The absolute permeability and porosity of GM is upscaled by all the ...  Read More

Numerical analysis of energy transmission through discontinuities and fillings in Kangir Dam

A. Siamaki; H. Bakhshandeh Amnieh

Volume 7, Issue 2 , July 2016, , Pages 251-259


  A considerable amount of energy is released in the form of shock wave from explosive charge detonation. Shock wave energy is responsible for the creation of crushing and fracture zone around the blast hole. The rest of the shock wave energy is transferred to rock mass as ground vibration. Ground vibration ...  Read More

Role of smile correction in mineral detection on hyperion data

M. Mohammady Oskouei; S. Babakan

Volume 7, Issue 2 , July 2016, , Pages 261-272


  This work aims to extract the mineralogical constituents of the Lahroud Hyperion scene situated in the NW of Iran. Like the other push-broom sensors, Hyperion images suffer from spectral distortions, namely the smile effect. The corresponding spectral curvature is defined as an across-track wavelength ...  Read More

Evaluation of structural analysis of tunnel segmental lining using beam-spring method and force-method (Case study: Chamshir water conveyance tunnel)

M. Nikkhah; Seyed S. Mousavi; Sh. Zare; O. Khademhosseini

Volume 8, Issue 1 , January 2017, , Pages 111-130


  The joints between segmental rings can withstand a certain amount of bending moment as well as axial and shear forces. Generally, in the structural analysis of tunnel segmental lining, the joints can be modeled as elastic hinges or rotational springs, and their rigidity should be demonstrated in terms ...  Read More

Evaluation of coalbed methane potential in Parvadeh IV coal deposit in central Iran using a combination of MARS modeling and Kriging

H. Molayemat; F. Mohammad Torab

Volume 8, Issue 2 , April 2017, , Pages 305-319


  Coalbed methane (CBM) plays an important role in coal mining safety and natural gas production. In this work, The CBM potential of B2 seam in Parvadeh IV coal deposit, in central Iran, was evaluated using a combination of local regression and geostatistical methods. As there were 30 sparse methane sampling ...  Read More

Determination of Hydraulic Jacking Mechanism and Maximum Allowable Grout Pressure during Grout Injection in Anisotropic Rocks

A. Majdi; M. Yazdani

Volume 12, Issue 2 , April 2021, , Pages 589-603


  The hydraulic jacking refers to the process of crack growth of the pre-existing joints in the rock mass under grout pressure above the minimum in-situ stress. Thus it is essential to understand the resistance behavior of the joints and maximum grout pressure. This paper describes a novel method for determining ...  Read More

Simulation of Crack Propagation Mechanism in Porous Media using Modified linear Element Displacement Discontinuity Method

Mohammadhosein Dehghani Firoozabadi; Mohammad Fatehi Marji; Abolfazl Abdollahipour; Alireza Yarahamdi Bafghi; Yousef Mirzaeian

Volume 13, Issue 3 , July 2022, , Pages 903-927


  In this work, an effective methodology is introduced for simulation of the crack propagation in linear poroelastic media. The presence of pores and saturated cracks that can be accompanied by fluid flow makes the use of poroelastic media inevitable. In this work, involvement of the time parameter in ...  Read More