Výsledky vyhledávání

Prediction of Reaming Performance of Vertical Raises Using Rock Properties and Operational Parameters

Autor: A. Shaterpour-Mamaghani, H. Copur, D. Tumac, C. Balci, T. Erdogan, E. Dogan, E. Altintas, A. Kocbay, O. Sirin

Publikováno v: All Days.

ABSTRACT: Raise Boring Machines (RBMs) as the fast and safe operation of drilling excavation of vertical and/or inclined shafts are used in the mining and construction projects for different purposes. Proper selection and accurate performance predict

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8daff7e3079dee3d94fdf5f124e982af
https://doi.org/10.56952/arma-2022-0274

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Empirical Performance Prediction for Raise Boring Machines Based on Rock Properties, Pilot Hole Drilling Data and Raise Inclination

Autor: H. Copur, Aydin Shaterpour-Mamaghani

Publikováno v: Rock Mechanics and Rock Engineering. 54:1707-1730

The basic aim of this study is to develop empirical models for predicting performances of pilot hole drilling and reaming for raise boring operations using rock properties and pilot hole drilling operational parameters for classified raise inclinatio

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7a3726a8118d018f8cf00206fcb51b2c
https://doi.org/10.1007/s00603-020-02355-1

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A Modified SDRE-based Sub-optimal Hypersurface Design in SMC

Autor: Sinan Ozcan, Metin U. Salamci, Ahmet Cagri Arican, Engin H. Copur

Publikováno v: IFAC-PapersOnLine. 53:6250-6255

Sliding Mode Control (SMC) plays a prominent role in dealing with matched uncertainties. In classical SMC design, the sliding surface (SS) is crucial to the guarantee for the stability and desired performance, especially if the system is nonlinear. A

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::967ccc25328ad8b0964931389aca829e
https://doi.org/10.1016/j.ifacol.2020.12.1737

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An update algorithm design using moving Region of Attraction for SDRE based control law

Autor: Sinan Ozcan, Ahmet Cagri Arican, Engin H. Copur, Metin U. Salamci

Publikováno v: Journal of the Franklin Institute. 356:8388-8413

State Dependent Riccati Equation (SDRE) methods have the considerable advantages over other nonlinear control methods. However, stability issues can be arisen in SDRE based control system due to the lack of the global asymptotic stability property. T

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b6484a962c83387c1b2bed0b71845074
https://doi.org/10.1016/j.jfranklin.2019.08.007

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Development of new empirical models for performance estimation of a raise boring machine

Autor: H. Copur, Aydin Shaterpour-Mamaghani, Engin Dogan, T. Erdogan

Publikováno v: Tunnelling and Underground Space Technology. 82:428-441

Raise boring machines (RBMs) are used for drilling/excavation of shafts and other inclined structures in mining and construction fields. Proper selection and accurate performance estimation of RBMs are two main parameters that affect the cost estimat

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::cdd4272a17de50f6bfb96444fd0f0b2c
https://doi.org/10.1016/j.tust.2018.08.056

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Possibility Of Using Torvane Shear Testing Device For Soil Conditioning Optimization

Autor: H. Copur, Cemal Balci, E. Avunduk, D. Tumac, A. Shaterpour –Mamaghani, S. Tolouei, Nuh Bilgin

Determining the optimum amount of soil conditioning agents and the behavior of excavated soil + foaming agent mixture during excavation process play an important role in the design and management of EPB TBM tunneling. Although there are some means of

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f6faf2b4b15446f096ab9cda45b79023
https://aperta.ulakbim.gov.tr/record/229984

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