Zobrazeno 1 - 10
of 128
pro vyhledávání: '"Nuwen Xu"'
Publikováno v:
Geomatics, Natural Hazards & Risk, Vol 15, Iss 1 (2024)
AbstractBlasting excavation is frequently used in myriads of hydraulic tunnels in Southwest China. To evaluate the effects of blasting parameters on the stability of tunnels and reveal reasonable blasting parameters, a field test on blasting paramete
Externí odkaz:
https://doaj.org/article/ccd66859fbbc4ac7a33fdca7d482b15a
Publikováno v:
Journal of Rock Mechanics and Geotechnical Engineering, Vol 15, Iss 10, Pp 2521-2538 (2023)
One of the major factors inhibiting the construction of deep underground projects is the risk posed by rockbursts. A study was conducted on the access tunnel of the Shuangjiangkou hydropower station to determine the evolutionary mechanism of microfra
Externí odkaz:
https://doaj.org/article/6daf53d687404c9dae6ba92902c2de6d
Publikováno v:
Journal of Rock Mechanics and Geotechnical Engineering, Vol 15, Iss 8, Pp 2158-2177 (2023)
The underground hydropower projects in Southwest China is characterized by large excavation sizes, high geostresses, complicated geological conditions and multiple construction processes. Various disasters such as collapses, large deformations, rockb
Externí odkaz:
https://doaj.org/article/beccfbc2bb5b4bb8acfe20aa7ac57f50
Publikováno v:
International Journal of Mining Science and Technology, Vol 33, Iss 6, Pp 717-731 (2023)
Based on the underground powerhouse of Shuangjiangkou hydropower station, Octree theory is adopted to define the indices of the microseismic (MS) spatial aggregation degree and the deviation values of MS count and energy. The relationship between the
Externí odkaz:
https://doaj.org/article/4d3db24fc90d440190a272a679f7dc8c
Publikováno v:
Geomatics, Natural Hazards & Risk, Vol 13, Iss 1, Pp 75-93 (2022)
High geo-stresses and complicated geological conditions are two typical characteristics in the traffic tunnel of the tailrace surge chamber at the Shuangjiangkou hydropower station, Southwest China. Rock failures such as spalling and rockbursts induc
Externí odkaz:
https://doaj.org/article/137b13fb141448e5a30498f4a0822628
Publikováno v:
Journal of Rock Mechanics and Geotechnical Engineering, Vol 14, Iss 4, Pp 1115-1130 (2022)
A high-precision microseismic (MS) monitoring system was built to monitor surrounding rock microfractures in the underground powerhouse on the left bank of Shuangjiangkou Hydropower Station. The surrounding rock damage area with spatiotemporal cluste
Externí odkaz:
https://doaj.org/article/c61e6da1e9094544a40f73a26865d653
Publikováno v:
Journal of Intelligent Construction, Vol 1, Iss 3, p 9180016 (2023)
Highly accurate microseismic (MS) localization is the basis for rock damage assessment and disaster warning. The engineering background noise mixed in the MS signal (s(ε)) seriously affects the subsequent analysis of the MS signal. A noise reduction
Externí odkaz:
https://doaj.org/article/df7aecb10e0f4f73aa5cfe6d3a627b38
Publikováno v:
Scientific Reports, Vol 11, Iss 1, Pp 1-17 (2021)
Abstract The initial in situ stress field influences underground engineering design and construction. Since the limited measured data, it is necessary to obtain an optimized stress field. Although the present stress field can be obtained by valley ev
Externí odkaz:
https://doaj.org/article/7a17abc1e5764157814927765cb313b3
Publikováno v:
Applied Sciences, Vol 13, Iss 14, p 8429 (2023)
To meet the demands of the mining, hydropower, and transportation industries, deep rock mass engineering in China has rapidly developed [...]
Externí odkaz:
https://doaj.org/article/ae25948929914f11b059594559c89683
Publikováno v:
Engineering Science and Technology, an International Journal, Vol 24, Iss 3, Pp 715-727 (2021)
Rockburst is a phenomenon where the elastic deformation may be emitted suddenly because of rock fragmentation, ejection, launching, and even earthquake. This may result in casualties, failure or deformation of the support structure, and damage to fie
Externí odkaz:
https://doaj.org/article/8721d418ff1c45c983ec6945d6058d57