Zobrazeno 1 - 10
of 105
pro vyhledávání: '"Haijian Su"'
Publikováno v:
Case Studies in Construction Materials, Vol 21, Iss , Pp e03692- (2024)
The inclined layered rock tunnel engineering in the alpine canyon area subject to tectonic stress will be influenced by high lateral stress. Currently, there are scarce reports on the impact of the lateral pressure coefficient on the stability of inc
Externí odkaz:
https://doaj.org/article/bad370bdb6484dd4a9a3ab92dd93bad0
Publikováno v:
Applied Sciences, Vol 14, Iss 18, p 8548 (2024)
In actual underground rock engineering, to prevent the deformation and damage of the rock mass, rock bolt reinforcement technology is commonly employed to maintain the stability of the surrounding rock. Therefore, studying the anchoring and crack-sto
Externí odkaz:
https://doaj.org/article/2ed697f399f64309bf4e495174a54ee6
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:
Journal of Rock Mechanics and Geotechnical Engineering, Vol 15, Iss 5, Pp 1144-1160 (2023)
The mechanical characteristics of crystalline rocks are affected by the heterogeneity of the spatial distribution of minerals. In this paper, a novel three-dimensional (3D) grain-based model (GBM) based on particle flow code (PFC), i.e. PFC3D-GBM, is
Externí odkaz:
https://doaj.org/article/0cf37bd4e30d44a1891b3db449799cf6
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:
International Journal of Mining Science and Technology, Vol 32, Iss 1, Pp 89-102 (2022)
To investigate the degradation mechanism of static tensile mechanical behaviors of marble containing dynamic damage, multiple impact loading tests were performed on the disc marble samples, and then static Brazilian tests were conducted for the damag
Externí odkaz:
https://doaj.org/article/cb0dec0f65ab4d9ab4e10fb41831a21b
Publikováno v:
Geofluids, Vol 2023 (2023)
Due to the influence of the ground stress, mining disturbance, and other factors, the roadway surrounding rock in deep underground engineering such as mines, tunnels, and underground caverns is prone to looseness and deformation with the excavation o
Externí odkaz:
https://doaj.org/article/44ba7a45c9a94d159c39c9760196b85f
Publikováno v:
Geofluids, Vol 2021 (2021)
This study analyzes the spatiotemporal evolution characteristics of seepage through a large-scale rock mass containing a filling joint. Firstly, a conceptual model was established to characterize the geomechanical occurrence of a typical water-resist
Externí odkaz:
https://doaj.org/article/94ddac3a0e884c449ebdaf64398358e8
Publikováno v:
Advances in Materials Science and Engineering, Vol 2021 (2021)
The thermal effect of rocks not only depends on the temperature level but also may be influenced by the factors including heating environment, heating rate, and cooling method. In this study, approximate vacuum (V) and air circulation (A) heating con
Externí odkaz:
https://doaj.org/article/2aa3ee8298ac4ba3af110c2fa6632e0f
Publikováno v:
Geofluids, Vol 2020 (2020)
Water inrush caused by the wetting-drying cycle is a difficult problem in tunnel excavation. To investigate the effect of the wetting-drying cycle on the stability of the tunnel surrounding rock, physical experiments and numerical simulations regardi
Externí odkaz:
https://doaj.org/article/afc6e49bbdd74ef683335b25dfb62f10