Zobrazeno 1 - 10
of 1 665
pro vyhledávání: '"ROCK MASSES"'
Publikováno v:
Journal of Rock Mechanics and Geotechnical Engineering, Vol 16, Iss 7, Pp 2678-2693 (2024)
Face stability is an essential issue in tunnel design and construction. Layered rock masses are typical and ubiquitous; uncertainties in rock properties always exist. In view of this, a comprehensive method, which combines the Upper bound Limit analy
Externí odkaz:
https://doaj.org/article/b5d1cd40a1cb4230bbaf9ff10cd649c6
Akademický článek
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Autor:
Zhongliang Feng, Yuyou Yang, Zhongxin Liu, Xin Chen, Shuailong Zhang, Huanqiang Luan, Guowen Tian, Changjing Feng
Publikováno v:
Case Studies in Construction Materials, Vol 20, Iss , Pp e02937- (2024)
Damage evolution of jointed rock masses during the excavation processes may trigger geological engineering disasters. In this study, macroscopic mechanical response (strength, failure characteristics, stress-strain variations, and the process of crac
Externí odkaz:
https://doaj.org/article/b156e24e8b6242e9936755737da36634
Publikováno v:
Zhongguo dizhi zaihai yu fangzhi xuebao, Vol 35, Iss 1, Pp 143-154 (2024)
In the mountainous regions of Xinjiang, traditional manual survey methods for dangerous rock masses are often restricted by the complex and steep terrain. To improve the efficiency and automation of dangerous rock masses surveys, this study proposes
Externí odkaz:
https://doaj.org/article/69ceff1ca3ef4c988ea87363b16153e3
Publikováno v:
Applied Sciences, Vol 14, Iss 17, p 7905 (2024)
The instability of jointed rock masses has been a persistent concern in China’s underground geotechnical engineering, particularly regarding rock mass instability triggered by structural activation, such as faulting. This form of instability consti
Externí odkaz:
https://doaj.org/article/31d23ec7329a4455b447284184ec4b7e
Publikováno v:
Meitan kexue jishu, Vol 51, Iss 11, Pp 84-94 (2023)
The weak rock mechanics is the basis of the control of coal mine roadway surrounding rock, which is generally of low strength and fractured. Due to the special characteristics of weak rocks in mechanics and structure, etc., there are problems in phys
Externí odkaz:
https://doaj.org/article/158f6b9e4d464a20a6e566c4cca66d48
Publikováno v:
工程科学学报, Vol 45, Iss 9, Pp 1441-1449 (2023)
With the in-depth deployment of China’s “Belt and Road Initiative” and other major strategies, major national strategic projects, such as the Sichuan–Tibet Railway, will be built in mountain valleys with complex terrain. Under the influence o
Externí odkaz:
https://doaj.org/article/f36f7b0ef656458ba9c81a8b490e2a65
Publikováno v:
Meitan xuebao, Vol 48, Iss 9, Pp 3372-3383 (2023)
In deep coal mining, the combinations of high temperature, high ground pressure, high karst water pressure and stress disturbance lead to a discontinuous deformation and complex rupture behavior of the surrounding rocks. Reproduction of the rock fail
Externí odkaz:
https://doaj.org/article/4bf7706cd6c5413fb915904c6b86ef90
Publikováno v:
Electronic Research Archive, Vol 31, Iss 6, Pp 3381-3399 (2023)
The use of unmanned aerial vehicles (UAVs) for photogrammetry allows the rapid acquisition of high-resolution images of geological masses in complex landforms. However, effective analysis of the acquired image information remains a key research issue
Externí odkaz:
https://doaj.org/article/05214c4bd64f4f68ae09fada2443b874
Publikováno v:
Romanian Journal of Transport Infrastructure, Vol 11, Iss 2, Pp 1-37 (2022)
It is not known in the literature why the behavior of rocks incurs the tunnel excavation and it remains unclear for what has been calculated in the initial studies. That’s why the most important thing to consider in tunnel construction works is to
Externí odkaz:
https://doaj.org/article/c6da25a9b8b64803a725d7bb4a6b002e