Zobrazeno 1 - 10
of 173
pro vyhledávání: '"Mechanized excavation"'
Publikováno v:
Meikuang Anquan, Vol 55, Iss 10, Pp 214-220 (2024)
To solve the problem of serious pollution and dust accumulation under the traditional mixed ventilation of the fully mechanized excavation face, the idea of using the air flow control device of the air outlet and the jet air curtain of the exhaust ou
Externí odkaz:
https://doaj.org/article/d55670ccc76e49a8a8b1d9b253af15e8
Publikováno v:
Muhandisī-i manābi̒-i ma̒danī, Vol 9, Iss 2, Pp 47-60 (2024)
The abrasivity of materials is of vital importance in selecting an affordable excavation method in the early stages of a tunneling project. The amount of specific energy and the Mode I and Mode II stress intensity factors in the eroded disc is more t
Externí odkaz:
https://doaj.org/article/8e180da536634fb988b52464a99a1281
Publikováno v:
Heliyon, Vol 10, Iss 17, Pp e37148- (2024)
One of the essential and practical issues on TBM performance is the wear during the excavation process of abrasive and resistant rock. The wear of the disc cutter, which is caused by the gradual and uniform reduction of the diameter of the disc cutte
Externí odkaz:
https://doaj.org/article/28c95ad817a74c21a23c2f219eba80b3
Akademický článek
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Autor:
Hanan Samadi, Jafar Hassanpour
Publikováno v:
Heliyon, Vol 10, Iss 11, Pp e31773- (2024)
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 operation of the earth pressure balance (EPB) machine for a specific project. This study focu
Externí odkaz:
https://doaj.org/article/7d7023f96c5f41faa1a22442ebee9706
Publikováno v:
Gong-kuang zidonghua, Vol 50, Iss 2, Pp 106-115 (2024)
Dust accumulation is severe during coal mine excavation. Currently, research on the dust settlement law and optimization under mixed air flow control in fully mechanized excavation faces is not in-depth enough. Based on a hybrid air flow control syst
Externí odkaz:
https://doaj.org/article/70afd9f43dd5407885fddc94e92a9fa9
Publikováno v:
Rudarsko-geološko-naftni Zbornik, Vol 39, Iss 2, Pp 63-74 (2024)
Nowadays, the use of Tunnel Boring Machines (TBM) in tunnelling has increased in urban environments. One of the effective parameters in the excavation process is the use of grout behind the segments to prevent ground settlement and penetration into t
Externí odkaz:
https://doaj.org/article/51c8c78fb83f4d37aa58bbde37a7246a
Publikováno v:
Gong-kuang zidonghua, Vol 50, Iss 1, Pp 72-79 (2024)
Prevalent research on dust pollution during fully mechanized excavation has mainly focused on the impact of individual factors on the effectiveness of air curtains in fully mechanized excavation sites. However, scant research has been devoted to the
Externí odkaz:
https://doaj.org/article/5a57585769114747ad7bc208e8bac639
Autor:
Xiaoyu YANG, Yiliang WANG
Publikováno v:
Meikuang Anquan, Vol 54, Iss 12, Pp 40-47 (2023)
Aiming at the problem of poor spray continuity between the external spray nozzles of the wet dust removal system in the fully mechanized excavation face, the numerical simulation study of the nozzle arrangement was carried out. Firstly, by constructi
Externí odkaz:
https://doaj.org/article/86ef3f86fe00460fa65ff4c1d5227b82
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