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| 1 | Mineral processing plant location using the analytic hierarchy process——a case study:the Sangan iron ore mine(phase 1)显示文摘Locating the mineral processing plant near a mine is the most important parameter that affects the whole process.Many factors,and their preferences,should be considered in this stage.The factors include economical,geological,technical,environmental and tectonic parameters.A multi-criteria decision making method is necessary to rank the alternatives.In this paper we describe how plant location is selected by using the Analytic Hierarchy Process(AHP).This method,with eight criteria,was used to select a location for the mineral processing plant at the Sangan iron ore mine(phase 1).Three alternatives for the processing plant were evaluated.The main criteria were distance from the mine,access to heavy machinery transport,the amount of excavation required for grading,bed mixture capacity,belt conveyor length,distance from the tailing dam,distance from the waste dumps and surface water diversion requirements.Finally,the alternatives were ranked and the best location was proposed. | SAFARI Mohsen ATAEI Mohammad KHALOKAKAIE Reza KARAMOZIAN Mohammad | 2010 | Mining Science and Technology2010，20，5： | 15 |
| 2 | Simultaneous effects of joint spacing and joint orientation on the penetration rate of a single disc cutter显示文摘This paper describes the influence of joint spacing and joint orientation on the penetration rate of a Tunnel Boring Machine(TBM) disc cutter as modeled by the Discrete Element Method(DEM).The input data for the simulations were obtained from the sandstone along the Alborz tunnel that is currently being excavated in Iran using a 5.2 m diameter open TBM.Three joint spacings,150,200,and 300 mm,were modeled together with seven values of joint orientation;0°,15°,30°,45°,60°,75°,and 90°.The results show that the penetration increases when joint orientation increases from 0° to 75°,but it decreases as the joint orientation increases further from 75° to 90°.This is true for each joint spacing.In addition,for a given joint orientation increasing the joint spacing causes the TBM penetration to decrease.The optimum joint orientation,from the viewpoint of TBM penetration,is about 60-75°. | Bejari Hadi Kakaie Reza Ataei Mohammad Khademi-Hamidi Javad | 2011 | Mining Science and Technology2011，21，4： | 13 |
| 3 | Presenting an engineering classification system for coal spontaneous combustion potential显示文摘 | Amir Saffari Farhang Sereshki Mohammad Ataei Keramat Ghanbari | 2017 | International Journal of Coal Science & Technology2017，4，2： | 9 |
| 4 | Application of a fuzzy analytical hierarchy process to the prediction of vibration during rock sawing显示文摘A new predictive model for evaluating the vibration of a sawing machine was developed using a new rock classification system. The predictors are machine parameters and a rock sawability index. The new rock classification system includes four major parameters of the rock: uniaxial compressive strength, abrasiv- ity index, mean Moh's hardness, and Young's modulus. The FAHP approach was used when determining the weights of these parameters by six decision makers. Two groups of carbonate rocks were sawn using a fully-instrumented laboratory sawing rig at different feed rates and depths of cut. During the sawing trials system vibration was monitored as a measure of saw performance. Then, a new statistical model was obtained by multiple regression on the machining parameters and the rock sawability index. The model is very useful for the evaluation of the system vibration, and for selecting suitable machining parameters, from a limited set of mechanical properties. | Mikaeil Reza Ataei Mohammad Yousefi Reza | 2011 | Mining Science and Technology2011，21，5： | 9 |
| 5 | Monte Carlo Analytic Hierarchy Process (MAHP) approach to selection of optimum mining method显示文摘One of the most critical and complicated steps in mine design is a selection of suitable mining method based upon geological,geotechnical,geographical,safety and economical parameters.The aim of this study is developing a Monte Carlo simulation to selection the optimum mining method by using effective and major criteria and at the same time,taking subjective judgments of decision makers into consideration.Proposed approach is based on the combination of Monte Carlo simulation with conventional Analytic Hierarchy Process(AHP).Monte Carlo simulation is used to determine the confdence level of each alternative’s score,is calculated by AHP,with the respect to the variance of decision makers’opinion.The proposed method is applied for Jajarm Bauxite Mine in Iran and eventually the most appropriate mining methods for this mine are ranked. | Ataei Mohammad Shahsavany Hashem Mikaeil Reza | 2013 | International Journal of Mining Science and Technology2013，23，4： | 8 |
| 6 | Application of analytical hierarchy process to selection of primary crusher显示文摘Selection of crusher required a great deal of design based on the mining plan and operation input.Selection of the best primary crusher from all of available primary crushers is a Multi-Criterion Decision Making(MCDM) problem. In this paper, the Analytical Hierarchy Process(AHP) method was used to selection of the best primary crusher for Golegohar Iron Mine in Iran. For this reason, gyratory, double toggle jaw, single toggle jaw, high speed roll crusher, low speed sizer, impactor, hammer mill and feeder breaker crushers were considered as alternatives and capacity, feed size, product size, rock compressive strength, abrasion index and mobility of crusher were considered as criteria. As a result of our study, the gyratory crusher was offered as the best primary crusher for the studied mine. | Rahimdel Mohammad Javad Ataei Mohammad | 2014 | International Journal of Mining Science and Technology2014，24，4： | 6 |
| 7 | Reliability-based maintenance scheduling of hydraulic system of rotary drilling machines显示文摘Hydraulic system has a critical and important role in drilling machines.Any failure in this system leads to problems in power system and machine operation.Since the failure cannot be prevented entirely,it is important to minimize its probability.Reliability is one of the most effcient and important method to study safe operation probability of hydraulic systems.In this research,the reliability of hydraulic system of four rotary drilling machines in Sarcheshmeh Copper Mine in Iran has been analyzed.The data analysis shows that the time between failures(TBF)of Machines A and C obey the Weibull(2P)and Weibull(3P)distribution,respectively.Also,the TBF of Machines B and D obey the lognormal distribution.With regard to reliability plots of hydraulic systems,preventive reliability-based maintenance time intervals for 80%reliability levels for machines in this system are 10 h. | Mohammad Javad Rahimdel Mohammad Ataei Reza Khalokakaei Seyed Hadi Hoseinie | 2013 | International Journal of Mining Science and Technology2013，23，5： | 4 |
| 8 | Reliability and maintainability analysis of electrical system of drum shearers显示文摘 | SEYED Hadi Hoseinie MOHAMMAD Ataei REZA Khalokakaie UDAY Kumar | 2011 | Journal of Coal Science & Engineering(China)2011，17，2： | 3 |
| 9 | A new framework for evaluation of rock fragmentation in open pit mines显示文摘The main purpose of blasting in open pit mines is to produce the feed for crushing stage with the optimum dimensions from in situ rocks. The size distribution of muck pile indicates the efficiency of blasting pattern to reach the required optimum sizes. Nevertheless, there is no mature model to predict fragmentation distribution to date that can be used in various open pit mines. Therefore, a new framework to evaluate and predict fragmentation distribution is presented based on the image analysis approach. For this purpose, the data collected from Jajarm bauxite mine in Iran were used as the sources in this study. The image analysis process was performed by Split-Desktop software to find out fragmentation distribution, uniformity index and average size of the fragmented rocks. Then, two different approaches including the multivariate regression method and the decision-making trial and evaluation laboratory(DEMATEL) technique were incorporated to develop new models of the uniformity index and the average size to improve the Rosin-Rammler function. The performances of the proposed models were evaluated in four blasting operation sites. The results obtained indicate that the regression model possesses a better performance in prediction of the uniformity index and the average size and subsequently the fragmentation distribution in comparison with DEMATEL and conventional Rosin-Rammler models. | Mohammad Babaeian Mohammad Ataei Farhang Sereshki Farzad Sotoudeh Sadjad Mohammadi | 2019 | Journal of Rock Mechanics and Geotechnical Engineering2019，11，2： | 2 |
| 10 | Assessment of rock slope stability using the Fuzzy Slope Mass Rating (FSMR) system显示文摘 | Abbas Daftaribesheli Mohammad Ataei Farhang Sereshki | 2011 | Applied Soft Computing Journal2011，，8： | 1 |
| 11 | Reliability analysis of drum shearer machine at mecha- nized longwall mines 显示文摘 | Seyed Hadi Hoseinie Mohammad Ataei Reza Khalokakaie | 2012 | Journal of Quality in Maintenance Engineering2012，18，1： | 1 |
| 12 | Load test of a plain concrete arch railway bridge of 20-m span显示文摘 | Mohammad SMarefat Esmaeel Ghahremani Gargary Shervan Ataei | 2004 | Construction and Building Materials2004，18，9： | 1 |
| 13 | Prediction of rotary drilling penetration rate in iron ore oxides using rock engineering system显示文摘Prediction of the drilling penetration rate is one of the important parameters in mining operations. This parameter has a direct impact on the mine planning and cost of mining operations. Generally, effective parameters on the penetration rate is divided into two classes: rock mass properties and specifications of the machine. The chemical components of intact rock have a direct effect in determining rock mechanical properties. Theses parameters usually have not been investigated in any research on the rock drillability. In this study, physical and mechanical properties of iron ore were studied based on the amount of magnetite percent. According to the results of the tests, the effective parameters on the penetration rate of the rotary drilling machines were divided into three classes: specifications of the machines, rock mass properties and chemical component of intact rock. Then, the rock drillability was studied using rock engineering systems. The results showed that feed, rotation, rock mass index and iron oxide percent have important effect on penetration rate. Then a quadratic equation with 0.896 determination coefficient has been obtained. Also, the results showed that chemical components can be described as new parameters in rotary drill penetration rate. | Hossein Inanloo Arabi Shad Farhang Sereshki Mohammad Ataei Mohammad Karamoozian | 2018 | International Journal of Mining Science and Technology2018，28，3： | 1 |
| 14 | Relia- bility analysis of drum shearer machine at mechanized longwall mines 显示文摘 | Hoseinie Seyed Hadi Ataei Mohammad Khalokakaie Reza | 2012 | Journal of Quality in Maintenance Engineering2012，18，1： | 1 |
| 15 | As- sessment of roof fall risk during retzeat mining in room and pillar coal mines 显示文摘 | Ebrahlm Ghasemi Mohammad Ataei Kammh Shahriar | 2012 | International Journal of Rock Mechanics & Mining Sciences2012，54，9： | 1 |
| 16 | 切割机在切割块石时的性能评估(英文)显示文摘切割机的能耗和振动性能直接影响到生产成本。本研究的目的是通过系统的实验研究,使用混合智能模型来评估切削机床的性能。建立了一个关于碳酸盐岩和花岗岩的数据库,确定极限抗压强度、弹性模量、莫氏硬度、Schmiazek 磨耗系数等物理力学参数和切削深度、进给速度等操作参数为输入参数。将多层感知器人工神经网络与遗传算法(GANN-BP)、支持向量回归法与布谷鸟优化算法(SCA-SVR)相结合,建立预测模型。结果表明,所建立的 GANN-BP 模型与 COA-SVR 模型性能相近,与实测值吻合较好。这些结果也表明,这些模型是评价切削机床性能的合适工具。 | Mohammad ATAEI Sadjad MOHAMMADI Reza MIKAEIL | 2019 | Journal of Central South University2019，26，7： | 0 |
| 17 | Non-catalytic conversion of wheat straw,walnut shell and almond shell into hydrogen rich gas in supercritical water media显示文摘Agricultural wastes as lignocellulosic biomasses are known as the major resources of bioenergy. These valuable resources can be converted into useful environmental friendly fuels and chemicals. Wheat straw, walnut shell and almond shell are the main agricultural wastes in Kurdistan province, Iran. This study investigates the hydrogen-rich gas production via gasification of these biomasses in supercritical water media. Experiments were performed first, in the base case condition using a stainless steel batch micro reactor system. Then, the effect of reaction time on the total gas yield and yield of hydrogen, were investigated. It was seen that the total gas yields and gasification efficiencies increased by increasing the reaction time to 30 min and then the total gas yield was approximately remained constant. Among three used feed stocks, wheat straw with higher amount of cellulose and lower amount of lignin had the highest total gas and hydrogen yields in shorter reaction times.The maximum hydrogen yields of 7.25, 4.1 and 4.63 mmol per gram of wheat straw, almond shell and walnut shell occurred at 10, 15 and 20 min of reaction time, respectively. | Farid Safari Mohammad Salimi Ahmad Tavasoli Abtin Ataei | 2016 | Chinese Journal of Chemical Engineering2016，24，8： | 0 |
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