Zobrazeno 1 - 10
of 2 633
pro vyhledávání: '"Penetration rate"'
Publikováno v:
Underground Space, Vol 19, Iss , Pp 138-152 (2024)
The Sichuan-Xizang Railway is a global challenge, surpassing other known railway projects in terms of geological and topographical complexity. This paper presents an approach for rapidly profiling rock mass quality underneath tunnel face for the ongo
Externí odkaz:
https://doaj.org/article/c0dc8d7d8c774b859b7c621229a66c1a
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-25 (2024)
Abstract Accurate penetration rate prediction enhances rock-breaking efficiency and reduces disc cutter damage in tunnel boring machine (TBM) construction. However, this process faces significant challenges such as the high uncertainty of ground cond
Externí odkaz:
https://doaj.org/article/938b451e7bff436dae0f8e228e36aee6
Publikováno v:
Energy Reports, Vol 11, Iss , Pp 145-152 (2024)
The sustainability of oil and gas well drilling operations is a vital issue from an economic and safety point of view. One of the practical methods to predict the continuation of the drilling operation is the analysis of the penetration rate of the d
Externí odkaz:
https://doaj.org/article/ca75fe0d90e04d26906e4c1c18bc99fb
Autor:
I-Hua Chung
Publikováno v:
Heliyon, Vol 10, Iss 21, Pp e39644- (2024)
In response to the increasing demands for net-zero carbon emissions in Taiwan and globally, this study explores the feasibility of implementing microgrid technologies in convenience stores to reduce carbon emissions. The study utilizes the commercial
Externí odkaz:
https://doaj.org/article/8f81af783c644da09a36212238422848
Publikováno v:
Journal of Rock Mechanics and Geotechnical Engineering, Vol 16, Iss 5, Pp 1538-1551 (2024)
Tunnel boring machines (TBMs) have been widely utilised in tunnel construction due to their high efficiency and reliability. Accurately predicting TBM performance can improve project time management, cost control, and risk management. This study aims
Externí odkaz:
https://doaj.org/article/38d20553cfba4ad18dbd3973d66145e1
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-16 (2024)
Abstract Estimating penetration rates of Jumbo drills is crucial for optimizing underground mining drilling processes, aiming to reduce costs and time. This study investigates various regression and machine learning methods, including Multilayer Perc
Externí odkaz:
https://doaj.org/article/d8f03364396943f49bcef9576d34f809
Publikováno v:
IET Intelligent Transport Systems, Vol 18, Iss 3, Pp 480-494 (2024)
Abstract The potential increase/decrease in energy consumption of traffic operation modes is a hot topic in the studies of connected and autonomous vehicles (CAVs), but there are few theoretical studies on the fuel consumption of human driving vehicl
Externí odkaz:
https://doaj.org/article/1514ab16295a452ca1b8b324802ab53b
Publikováno v:
Heliyon, Vol 10, Iss 12, Pp e33174- (2024)
The penetration rate (PR) of tunnel boring machines (TBMs) is often used to evaluate tunneling performance and predict construction period costs. However, most penetration rate (PR) prediction models are based on a single specific project, which lead
Externí odkaz:
https://doaj.org/article/628e51f095ae4f82a6668dbd3a79f02a
Autor:
Samaneh Khodaee Ashestani, Hamid Chakeri, Mohammad Darbor, Erfan Khoshzaher, Seyyed Shahab Eddin Bazargan
Publikováno v:
Analytical and Numerical Methods in Mining Engineering, Vol 13, Iss 37, Pp 1-9 (2023)
In this study, the penetration rate of the excavation machine in Tabriz Metro Line 2 using geotechnical parameters and neural networks is estimated. For this purpose, through comprehensive analysis, including borehole drilling, field and laboratory t
Externí odkaz:
https://doaj.org/article/3114f37e7f7c4f709fe18a9adfda6997
Publikováno v:
Applied Sciences, Vol 14, Iss 19, p 8851 (2024)
The integration of autonomous vehicles into urban traffic systems offers a significant opportunity to improve traffic efficiency and safety at signalized intersections. This study provides a comprehensive evaluation of how different autonomous vehicl
Externí odkaz:
https://doaj.org/article/57c202926912442e91edc43581be29be