Zobrazeno 1 - 10
of 155
pro vyhledávání: '"pressure arch"'
Publikováno v:
Journal of Hebei University of Science and Technology, Vol 45, Iss 4, Pp 434-442 (2024)
To study the calculation method of rock pressure in jointed rock tunnels, based on the theory of tunnel pressure arch, the influence of rock hardness, integrity, and shear strength of structural planes on tunnel pressure arch was analyzed through dis
Externí odkaz:
https://doaj.org/article/10ad837216c644a888d0d4bc2ce21087
Autor:
Xiang ZHANG, Sitao ZHU, Fuxing JIANG, Xiufeng ZHANG, Shidong LI, Chao WANG, Jinhai LIU, Yang CHEN, Tao ZHOU, Jiajie LI, Chun ZHU
Publikováno v:
Meitan xuebao, Vol 48, Iss 5, Pp 2092-2105 (2023)
The stress-loaded rockburst is a unique type of rockburst that occurs in some fully mechanized top-coal caving stopes with deep thick overburden, its occurrence mechanism is still unclear, leading to the failure to effective prevention and even serio
Externí odkaz:
https://doaj.org/article/f7432078ea49435dbe923ec171fb85ed
Akademický článek
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Publikováno v:
Underground Space, Vol 7, Iss 3, Pp 324-336 (2022)
Jacking force is one of the important safety indicators during pipe jacking construction. Existing models for calculating jacking force are widely used in the calculation of jacking force for pipe with regular cross-sections. In this paper, consideri
Externí odkaz:
https://doaj.org/article/3355805c14ed4a1c95413a2afe954e7b
Publikováno v:
Frontiers in Earth Science, Vol 11 (2023)
In view of the obvious loose and weak occurrence characteristics of the deeply buried thick weakly cemented stratum in the western mining area of China, the bearing characteristics and stability mechanism of the macrography surrounding rock pressure
Externí odkaz:
https://doaj.org/article/2dd234bfbe2b48fcb4375c6d7fd2fc25
Akademický článek
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Publikováno v:
Symmetry, Vol 15, Iss 3, p 673 (2023)
Compared with single or twin tunnels, the pressure arch effect of deeply buried, symmetrically distributed triple tunnels are more complex and less studied. In this paper, the arching responses are in-situ measured in the deeply buried, symmetrically
Externí odkaz:
https://doaj.org/article/4610be15a1b74c62b628b61cd9152da3
Publikováno v:
Frontiers in Earth Science, Vol 10 (2022)
The force chain method is a powerful tool to analyze the pressure arch of a tunnel, which has important influence on the seismic stability of tunnel structures. The force distribution around the tunnel before and after an earthquake was observed with
Externí odkaz:
https://doaj.org/article/d7720864a06e4c01b4c1f112c8950ea3
Akademický článek
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Publikováno v:
Tehnički Vjesnik, Vol 25, Iss 3, Pp 867-875 (2018)
To ensure safety mining during shallow horizontal coal mining based on the monitoring data of the roof weighting of a typical mining engineering in China, the load distribution characteristics of the roof in the mining field were analysed, and the me
Externí odkaz:
https://doaj.org/article/5110d208c43c4b31aee53937e67f2b53