Zobrazeno 1 - 10
of 1 165
pro vyhledávání: '"disc cutter"'
Publikováno v:
Geomechanics and Geophysics for Geo-Energy and Geo-Resources, Vol 10, Iss 1, Pp 1-20 (2024)
Abstract Understanding the distribution of cutting force provides a foundation for the design and optimization of cutterhead layout. The simulation of rotary cutting with a large cutting radius remains a challenge for laboratory tests. In this study,
Externí odkaz:
https://doaj.org/article/a1fbc314723f4232936b3db7deaa4d32
Publikováno v:
Journal of Rock Mechanics and Geotechnical Engineering, Vol 16, Iss 9, Pp 3365-3377 (2024)
This article introduces a high-power microwave mechanical integrated continuous mining device, which can achieve synchronous cutting of hard rocks by microwave and machinery. The device includes a cutting system, a rotary translation system, a loadin
Externí odkaz:
https://doaj.org/article/9c3b52f5d18c47f18702d20a1b1e6b21
Publikováno v:
Meitan kexue jishu, Vol 52, Iss S1, Pp 259-268 (2024)
Rapid excavation of hard rock tunnels was a crucial aspect in achieving intelligent and efficient coal mining. Cantilever roadheaders, TBMs, and bottom cutting equipment are all attempting to address this challenge. The development of excavation tech
Externí odkaz:
https://doaj.org/article/409848a9e98e43fe9a97d85c8833dc7e
Publikováno v:
Underground Space, Vol 19, Iss , Pp 119-137 (2024)
When tunnel boring machines (TBMs) excavate through jointed rock masses, the cutting efficiency is strongly affected by the shear strength of joints, the mechanism of which, however, remains poorly understood. In this study, a series of disc-cutter i
Externí odkaz:
https://doaj.org/article/37ee0c05997741048f349cf805727c21
Publikováno v:
Meitan xuebao, Vol 49, Iss 3, Pp 1689-1703 (2024)
Disc cutter has a better hard rock breaking performance due to its undercutting mode. To further improve the mechanized excavation efficiency of hard rock roadway in underground coal mine, the rock wedged performance of disc cutter assisted by circum
Externí odkaz:
https://doaj.org/article/cdd848dfb9c74ab7ad82bb282bc7bdff
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-25 (2024)
Abstract Disc cutters are essential for full-section hard-rock tunnel boring machines. The performance of these devices directly affects tunnel engineering costs and duration. This paper proposes a sinusoidal variable cross-section (VCS) cutter ring
Externí odkaz:
https://doaj.org/article/b5d619ef8a6544368e6acaec604acbfa
Publikováno v:
Meitan xuebao, Vol 49, Iss 2, Pp 1183-1198 (2024)
The identification of rock-breaking mode is a key basis to improve cutting ability, and the cutter cutting attitude has a significant influence on rock-breaking mode. In this study, the internal relationship between cutting attitude and rock-breaking
Externí odkaz:
https://doaj.org/article/394743f31f9642fca69cfe0a840b049a
Study on the influence of TBM disc cutter on the penetration of extremely hard rock in Zijing Tunnel
Publikováno v:
Electronic Journal of Structural Engineering (2024)
The reasonable setting of TBM disc cutter penetration depth is crucial for its rock-breaking efficiency in extremely hard rock geology. In the construction section of the Dujiangyan to Mount Siguniang Zijing Tunnel project, which encountered extremel
Externí odkaz:
https://doaj.org/article/382c255d9e744892b013308e76392dd8
Publikováno v:
Meitan xuebao, Vol 48, Iss 9, Pp 3589-3603 (2023)
The heat generation mechanism, wear behavior and quantitative relationship between cutting load and coal rock characteristics of the interaction between the cutting tool of mining machinery and coal rock mass, are the keys in solving the wear failure
Externí odkaz:
https://doaj.org/article/0558c15a00954e078314364020189afe
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