Zobrazeno 1 - 10
of 3 692
pro vyhledávání: '"Soft rock"'
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-13 (2024)
Abstract Tunnels in the Western Plateau region of China often face numerous problems of high ground stress, as well as highly fractured and weak rock masses in deep sections of the tunnel, which results in an increased risk of large soft rock deforma
Externí odkaz:
https://doaj.org/article/7c3795773e0640e2864cc8d42ae34fad
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-16 (2024)
Abstract Based on the Hohai model, a creep constitutive model of viscoelastic-plastic soft rock with joint fracture damage is proposed to solve the rheological failure problem in soft rock tunnels surrounding rock. Based on the proposed creep model o
Externí odkaz:
https://doaj.org/article/5e6f283f7c4c4b96902942deaa4f1c13
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-19 (2024)
Abstract Under asymmetric three-dimensional high in-situ stress and high pore water pressure, tunnels are subjected to complex stress conditions, making them susceptible to failure and posing a threat to water conveyance safety. This study focuses on
Externí odkaz:
https://doaj.org/article/2958c76e8622415ca4177c6a41892173
Publikováno v:
Energy Science & Engineering, Vol 12, Iss 11, Pp 5316-5327 (2024)
ABSTRACT The severe deformation of the surrounding rock of the coal floor in Shanghaimiao mining area is affecting the safe, efficient production of mine wells in this region. In this study, the heave mechanism and control of the roadway floor were i
Externí odkaz:
https://doaj.org/article/af9f08dbaf5241fa942c49efac9e659d
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-16 (2024)
Abstract Effective and safe support in soft rock roadways remains a critical challenge in underground coal mining due to the extreme weakness of the rocks and their susceptibility to weathering and water invasion. This paper examines the tailgate of
Externí odkaz:
https://doaj.org/article/159c4375752148fd8407bf9496be7329
Publikováno v:
Meikuang Anquan, Vol 55, Iss 10, Pp 173-178 (2024)
Aiming at the problem of coal at the lower part of multi-weak bedding down-dipping soft rock slope, from the perspective of controllable slope deformation risk and the maximization of resource recovery, based on the analysis of geological data and we
Externí odkaz:
https://doaj.org/article/f34f5bce61a64a60aa13bcfc1ff5580a
Publikováno v:
Underground Space, Vol 20, Iss , Pp 259-276 (2025)
Multi-layer linings have been widely used in deep rheological soft rock tunnels for the excellent performance in preventing large-deformation hazards. Previous studies have focused on the bearing capability of multi-layer lining, however, its failure
Externí odkaz:
https://doaj.org/article/e3f5b67392ba4c12a69b0c2d987039dd
Publikováno v:
Energy Science & Engineering, Vol 12, Iss 9, Pp 3852-3868 (2024)
Abstract To solve the problem of controlling large deformation of surrounding rock in deep soft rock roadway, the distribution characteristics and deformation mechanism of surrounding rock cracks in soft rock roadway under different lateral pressure
Externí odkaz:
https://doaj.org/article/76496e52d3334775b8302ef557aa654e
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-15 (2024)
Abstract The plastic flow behavior of soft rock exhibits non-coaxial features under complex stress paths, while traditional plasticity theories are ill-equipped to adequately represent this, which leads to the mechanism of soft rock failure still unc
Externí odkaz:
https://doaj.org/article/33190a8a11244745b822eb3c0e00f018
Publikováno v:
Geomechanics and Geophysics for Geo-Energy and Geo-Resources, Vol 10, Iss 1, Pp 1-20 (2024)
Abstract In order to control the strong ageing creep and large deformation of deep soft rock roadway effectively, with the 61–71 track on the uphill of the mining area in Suzhou, Anhui as the research background, the triaxial creep test of mudstone
Externí odkaz:
https://doaj.org/article/3cfc7cc81133471c973d3b22db3af8bf