Search Results - "Hassanpour, Jafar"

EPB-TBM cutterhead torque and thrust modelling in rock tunnels through an analytical method and TSFS model by Samadi, Hanan, Hassanpour, Jafar

“…The analysis of cutterhead torque and thrust force is of utmost importance in the selection of a proper tunnel boring machine (TBM) and in achieving optimal…”
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Introduction of a modified QTBM model for predicting TBM penetration rate in rock, based on data from mechanized tunneling projects in Iran by Hassanpour, Jafar, Kazemi, Chamran, Rostami, Jamal

“…One of the TBM performance prediction models that has been introduced in recent years and used for estimating penetration rate of TBM in hard rock conditions…”
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Prediction of earth pressure balance for EPB-TBM using machine learning algorithms by Samadi, Hanan, Hassanpour, Jafar, Rostami, Jamal

“…Face stability control of excavation with earth pressure balance machine (EPB) approach is the best available method to reduce the ground deformation and…”
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Assessment of shear strength of fine-grained and coarse-grained soil using actual EPB-TBM operating data by Samadi, Hanan, Hassanpour, Jafar, Rostami, Jamal

“…The necessity of predicting geotechnical parameters in soft ground tunnelling is crucial for selecting the appropriate tunnel boring machine (TBM), evaluating…”
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Predicting Maximum Settlement Induced by EPB Shield Tunneling Through Image Processing and an Intelligent Approach by Yazdanparast, Mehdi, Koushkgozar, Hossein Ayyab, Hassanpour, Jafar, Kahaki, Abolfazl, Khodagholi, Mohsen

“…In today’s urban development, Earth Pressure Balance (EPB) Tunnel Boring Machines (TBMs) play a vital role. It’s crucial to design a comprehensive monitoring…”
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Development of an empirical model to estimate disc cutter wear for sedimentary and low to medium grade metamorphic rocks by Hassanpour, Jafar

“…In hard rock tunneling with TBM, changing worn or damaged disc cutters has a major effect on TBM performance and consequently on constructing time and cost…”
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Assessment of the Relationship Between Rock Mass Classification Systems Using Hybrid XGBoost Algorithms: Insights from the Mechanized Tunnelling Project Database by Samadi, Hanan, Hassanpour, Jafar, Rostami, Jamal

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Disc cutter wear/life analysis in a long tunnel excavated in strong to very strong, abrasive rocks by Karimi, Hajar, Khamehchiyan, Mashalah, Hassanpour, Jafar

“…The complex interaction between the cutters and rocks in the tunnel face makes it difficult to predict the cutter wear, exactly. Therefore, many researchers…”
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Actual performance analysis of a double shield TBM through sedimentary and low to medium grade metamorphic rocks of Ghomrood water conveyance tunnel project (lots 3 and 4) by Hassanpour, Jafar, Firouzei, Yavar, Hajipour, Golnaz

“…In this paper, after a brief description of engineering geological properties of Ghomrood water conveyance tunnel project (lots 3 and 4 with a total length of…”
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Proposed soil classification based on the experiences of soft-ground tunneling in Iran by Hashemnejad, Arash, Hassanpour, Jafar

“…An essential step in successful mechanized and conventional tunneling operations is a thorough characterization of ground conditions and identification of…”
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Prediction of Engineering Characteristics of Rock Masses Using Actual TBM Performance Data with Supervised and Unsupervised Learning Algorithms (a Case Study in Strong to Very Strong Igneous and Pyroclastic Rocks) by Samadi, Hanan, Karimi, Hajar, Khamehchiyan, Mashalah, Hassanpour, Jafar

“…Knowing accurate values of rock engineering parameters in hard rock condition is the key in estimating and adjusting TBM performance. In this study, TBM…”
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Introducing Tree-Based-Regression Models for Prediction of Hard Rock TBM Performance with Consideration of Rock Type by Salimi, Alireza, Rostami, Jamal, Moormann, Christian, Hassanpour, Jafar

“…Prediction of machine performance is a fundamental step for planning, cost estimation/control and selection of the machine type when using a tunnel boring…”
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Salt tectonics in a double salt‐source layer setting (Eastern Persian Gulf, Iran): Insights from interpretation of seismic profiles and sequential cross‐section restoration by Hassanpour, Jafar, Yassaghi, Ali, Muñoz, Josep A., Jahani, Salman

“…Salt tectonics in the Eastern Persian Gulf (Iran) is linked to a unique salt‐bearing system involving two overlapping ‘autochthonous’ mobile source layers, the…”
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Introduction of an empirical classification system for evaluating tunneling impact on the discharge of springs (TIS) in the surrounding areas by Hassanpour, Jafar, Lotfipoor, Ashkan, Morsali, Massoud

“…Water inflow caused by tunneling can have severe impacts on the springs’ discharge rate. If these impacts have not been predicted beforehand, technical,…”
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Evaluating the influence of engineering geological parameters on TBM performance during grinding process in limestone strata by Pourhashemi, Seyed Mahdi, Ahangari, Kaveh, Hassanpour, Jafar, Eftekhari, Seyed Mosleh

“…The chipping and grinding processes are the basis for understanding rock cutting during TBM excavation in hard rock conditions. The chips are produced when…”
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Determining the origin of groundwater elements using hydrochemical data (case study: Kerman water conveyance tunnel) by Saberinasr, Amir, Morsali, Massoud, Hashemnejad, Arash, Hassanpour, Jafar

“…Pollution by heavy metals and potentially toxic elements is one of the main problems in tunneling construction in geothermal and volcanic areas. Kerman tunnel,…”
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TBM performance analysis in very strong and massive rocks; case study: Kerman water conveyance tunnel project, Iran by Pourhashemi, Seyed Mahdi, Ahangari, Kaveh, Hassanpour, Jafar, Eftekhari, Seyed Mosleh

“…When TBMs are applied for tunnel excavation in very strong and massive rocks, the cutting mechanism happening under the disc cutters is converted from chipping…”
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The behavior and properties of Tehran alluvial soils under cyclic loading of urban vibrations—a case study: Arash-Esfandiar tunnel by Tavanaei, Fatemeh, Hassanpour, Jafar, Memarian, Hossein

“…Urban vibrations are increasing due to urban developments all over the world. These vibrations are daily applied to all surrounding structures, while their…”
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Investigating the relationships between rock mass classification systems based on data from mechanized tunneling projects in Iran by Hassanpour, Jafar, Khoshkar, Atefeh Saljooghi, Farasani, Maryam Ghasemi, Hashemnejad, Arash

“…Rock mass classification systems are valuable tools for estimating design parameters of rock engineering projects. In some cases, due to the lack of enough…”
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Evolution of the Karebas Fault System and adjacent folds, central Zagros fold-and-thrust belt, Iran: Role of pre-existing halokinesis (salt structures and minibasins) and detachment levels by Hassanpour, Jafar, Jahani, Salman, Ghassemi, Mohammad Reza, Alavi, Seyed Ahmad, Zeinali, Fatemeh

“…[Display omitted] •Stratigraphic exposures and a seismic line document records of diapirism.•Halokinesis was ongoing long before the onset of Neogene…”
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