Zobrazeno 1 - 10
of 140
pro vyhledávání: '"support optimization"'
Publikováno v:
Meikuang Anquan, Vol 55, Iss 10, Pp 111-119 (2024)
Aiming at the design problem of inclined borehole wall in expansive mudstone formation in eastern Mongolia, a theoretical model of circular borehole wall under the combined action of uneven ground pressure and expansive contact pressure is establishe
Externí odkaz:
https://doaj.org/article/6e4dd264653549179159a2e4356d2fd0
Publikováno v:
Meitan xuebao, Vol 49, Iss 4, Pp 1752-1770 (2024)
The rock burst frequently occurs in the roadways with top coal, and the roof disasters are particularly severe under dynamic stress in China. In order to explore the classification and instability mechanisms of anchoring structures in the roadways wi
Externí odkaz:
https://doaj.org/article/6f6cd17c6c0f45e8891c1cfbbe93c720
Publikováno v:
Frontiers in Earth Science, Vol 12 (2024)
China’s coal mines are mainly underground mines, and a large number of roadways have to be excavated underground. It is of great significance for coal mine production to adopt safe and reasonable roadway support methods. In the process of roadway e
Externí odkaz:
https://doaj.org/article/a072559349c440d7853033fd3a6c6447
Autor:
CHAI Jing, LIU Hongrui, ZHANG Dingding, LIU Yongliang, HAN Zhicheng, TIAN Zhicheng, ZHANG Ruixin
Publikováno v:
Gong-kuang zidonghua, Vol 49, Iss 3, Pp 13-22 (2023)
The traditional convergence instrument, 3D laser scanning and other monitoring technologies for the deformation of surrounding rock in the mine roadway can not meet the comprehensive monitoring requirements of complex projects. The technologies have
Externí odkaz:
https://doaj.org/article/7a052b4fa2744b11aacfa0d377344628
Publikováno v:
Frontiers in Earth Science, Vol 11 (2023)
During coal mining, the deformation and failure of a weakly cemented soft rock roadway roof could cause difficulties for roadway support. In this paper, a combination of on-site measurement and theoretical analysis is used to solve this issue. Firstl
Externí odkaz:
https://doaj.org/article/9d623a177bbf40b5b73d94bb8e1ab635
Akademický článek
Tento výsledek nelze pro nepřihlášené uživatele zobrazit.
K zobrazení výsledku je třeba se přihlásit.
K zobrazení výsledku je třeba se přihlásit.
Publikováno v:
Frontiers in Earth Science, Vol 11 (2023)
Slope reinforcement is a common method to solve the problem of slope instability, and reasonable optimization of the corresponding support parameters is crucial for practical engineering. In this paper, the slope support method of Manyanpo tunnel ent
Externí odkaz:
https://doaj.org/article/7ddc0af232f14f019ab372669545e30b
Publikováno v:
Meikuang Anquan, Vol 53, Iss 2, Pp 104-111 (2022)
In order to study the failure mechanism of surrounding rock of TBM assembly chamber in deep coal mine and optimize its support scheme, taking the construction of TBM assembly chamber in Zhangji Coal Mine as the engineering background, the numerical m
Externí odkaz:
https://doaj.org/article/7d306e0f6e60486890af3299d34faf45
Publikováno v:
Applied Sciences, Vol 13, Iss 21, p 11812 (2023)
As underground engineering extends into the western and deeper regions of China, more and more Luohe Formation sandstone layers will be encountered, which have weak cementation and high water content. It is a significant challenge to apply the open T
Externí odkaz:
https://doaj.org/article/d0fb13a6ba0b4d299cc20e456192af4f
Publikováno v:
Meikuang Anquan, Vol 53, Iss 12, Pp 241-246, 252 (2022)
To study the deformation and failure law of roadway surrounding rock with weak interlayer under dynamic and static loads, taking the deep transportation roadway of Longfeng Coal Mine as the research object, the mechanical deformation characteristics
Externí odkaz:
https://doaj.org/article/c4191ad6a462410d8f9741a244e38f8b