Zobrazeno 1 - 10
of 356
pro vyhledávání: '"Dynamic disturbance"'
Publikováno v:
Meikuang Anquan, Vol 55, Iss 10, Pp 166-172 (2024)
In order to study the stability of slopes containing weakly inter bedded rocks under dynamic disturbance, the dynamic response characteristics of rocks with different inclinations under dynamic cyclic disturbance are investigated through indoor exper
Externí odkaz:
https://doaj.org/article/15cfb48d9b6d4ff5a42e9e340c143ba2
Publikováno v:
International Journal of Coal Science & Technology, Vol 11, Iss 1, Pp 1-14 (2024)
Abstract Uniaxial compression tests and cyclic loading acoustic emission tests were conducted on 20%, 40%, 60%, 80%, dry and saturated muddy sandstone by using a creep impact loading system to investigate the mechanical properties and acoustic emissi
Externí odkaz:
https://doaj.org/article/128aa86c717741e8821b26ea043728e0
Publikováno v:
Journal of Rock Mechanics and Geotechnical Engineering, Vol 16, Iss 3, Pp 741-760 (2024)
The surrounding rock of underground space is always affected by external dynamic disturbance from the side position, such as blasting vibration from a stope at the same level or seismic waves from adjacent strata. A series of laboratory tests, numeri
Externí odkaz:
https://doaj.org/article/be0ad76856b840809c6cb4e2b1c689da
Publikováno v:
Geomechanics and Geophysics for Geo-Energy and Geo-Resources, Vol 10, Iss 1, Pp 1-21 (2024)
Abstract Rockbursts are a complex phenomenon characterized by a violent ejection of rock fragments from the free face of deep underground mines. Due to the sudden, disruptive, and complex nature of these events, accurate predictions of rockbursts are
Externí odkaz:
https://doaj.org/article/5f1dd3d669bb4cea9393b01ce5999d8c
Publikováno v:
Open Geosciences, Vol 15, Iss 1, Pp 1-16 (2023)
In the deep rock excavation process, the rock will produce deformation and damage under multiple dynamic disturbances, while there is also unrecoverable time-dependent deformation. In order to research this deformation characteristic, a sine wave dis
Externí odkaz:
https://doaj.org/article/50f20ab7a50843c0bf4c1f64b4a68dba
Publikováno v:
工程科学学报, Vol 45, Iss 9, Pp 1425-1440 (2023)
Roof caving has been the main threat to the safety of underground mining, in which the caving of roof rock blocks is particularly concerning. The secondary structural planes of surrounding rocks around underground excavations, such as roadways and st
Externí odkaz:
https://doaj.org/article/6ba85c4d4d7d4ebe9e8cca9f41971e77
Publikováno v:
Underground Space, Vol 10, Iss , Pp 269-293 (2023)
With the excavation of underground opening, the roof rock block may fall under external dynamic disturbance. In this paper, the roof rock mass was simplified as a rock block system composed of trapezoidal rock blocks. A series of experiments and nume
Externí odkaz:
https://doaj.org/article/d86ecaeda57743ffa6d57bdf8d7575d0
Publikováno v:
Deep Underground Science and Engineering, Vol 2, Iss 1, Pp 52-60 (2023)
Abstract Strainbursts induced by cyclic disturbance with low frequency (termed as cyclic‐induced strainbursts) are major dynamic disasters during deep excavation and mining. There is currently no quantitative criterion available for the prediction
Externí odkaz:
https://doaj.org/article/6cd48cd333e5491989886da0a63d14f3
Autor:
Qiankun Kong
Publikováno v:
IEEE Access, Vol 11, Pp 144705-144721 (2023)
Ultra-wideband (UWB) is regarded as the technology with the most potential for precise indoor location due to its centimeter-level ranging capabilities, good time resolution, and low power consumption. However, Because of the presence of non-line-of-
Externí odkaz:
https://doaj.org/article/041c503f4466453fb1043ee3bb1df08f
Publikováno v:
Journal of Rock Mechanics and Geotechnical Engineering, Vol 15, Iss 1, Pp 102-118 (2023)
In this context, a testing system to understand rock fracturing processes induced by different dynamic disturbances under true triaxial compression was developed. The system is mainly composed of a static loading subsystem, a dynamic loading subsyste
Externí odkaz:
https://doaj.org/article/2c04512868934494bf75e00784348792