Zobrazeno 1 - 10
of 734
pro vyhledávání: '"Fractured rock mass"'
Autor:
Duofeng Cen, Yage Li
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-14 (2024)
Abstract The frost heave failure mechanism of fractured rock mass is a complicated problem faced by engineering construction in cold area. In this study, low temperature frost heave test and post-freezing uniaxial compression test on sandstone sample
Externí odkaz:
https://doaj.org/article/188bf6d250ed4ba7a8252fb2426b7a7f
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-20 (2024)
Abstract With regard to deep mining in metal mines, an investigation into the failure mode of deep fractured rock masses and their corresponding acoustic emission signal characteristics is conducted via uniaxial compression tests. Subsequently, a fra
Externí odkaz:
https://doaj.org/article/c49f04c163fe43c88c37a84f6946102d
Autor:
Martin Lebeda, Petr Kabele
Publikováno v:
Acta Polytechnica CTU Proceedings, Vol 49 (2024)
The overall mechanical response of a fractured rock mass is, to a large extent, affected by naturally occurring fractures that exhibit sizes from millimeters to kilometers. Thus, in analysis of underground structures, such as tunnels, it is required
Externí odkaz:
https://doaj.org/article/fdcf040d458048b982d2edfdc2d6fe71
Publikováno v:
International Journal of Mining Science and Technology, Vol 34, Iss 7, Pp 995-1016 (2024)
Complexities in mechanical behaviours of rock masses mainly stem from inherent discontinuities, which calls for advanced bolt-grouting techniques for stability enhancement. Understanding the mechanical properties of bolt-grouted fractured rock mass (
Externí odkaz:
https://doaj.org/article/5a99bbfdd5a345a1a6e54190b2d56a6b
Publikováno v:
Journal of Rock Mechanics and Geotechnical Engineering, Vol 16, Iss 6, Pp 1977-1992 (2024)
As a calculation method based on the Galerkin variation, the numerical manifold method (NMM) adopts a double covering system, which can easily deal with discontinuous deformation problems and has a high calculation accuracy. Aiming at the thermo-mech
Externí odkaz:
https://doaj.org/article/fcd6915046404fcea686dc4bb5dbc101
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-16 (2024)
Abstract In practical engineering, the development of surface cracks is one of the most important reasons for the destruction of the rock mass, and the development of complex morphology fractures on the rock mass surface significantly influences rock
Externí odkaz:
https://doaj.org/article/26dae5bb15de47c3a7c13e412b33ac0d
Publikováno v:
Case Studies in Thermal Engineering, Vol 61, Iss , Pp 104918- (2024)
The aim of this paper is to explore hydrothermal transport in surrounding rocks during deep mining, focusing on the mechanisms and key factors influencing groundwater seepage and heat accumulation disasters. Stress–seepage coupling tests were condu
Externí odkaz:
https://doaj.org/article/ce7c310f7ceb4547b9b71112f6b30456
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-15 (2024)
Abstract Freeze–thaw failure of frozen rock slope often occurs during engineering construction and mining in cold area, which poses a great threat to engineering construction and people's life safety. The properties of rock mass in cold region will
Externí odkaz:
https://doaj.org/article/d4a4cb27f5724b368bc45dee5d3620d9
Publikováno v:
Geomechanics and Geophysics for Geo-Energy and Geo-Resources, Vol 10, Iss 1, Pp 1-38 (2024)
Abstract In this paper, a hydro-thermo-mechanical coupling model based on the smoothed particle hydrodynamics with total Lagrangian formula (HTM-TLF-SPH) is proposed to simulate the crack propagation and instability process of fractured rock mass. TL
Externí odkaz:
https://doaj.org/article/c1a07bfbd22d41d08cf28592dd01e627
Publikováno v:
Geomechanics and Geophysics for Geo-Energy and Geo-Resources, Vol 9, Iss 1, Pp 1-20 (2023)
Abstract Laboratory tests are one of the most fundamental and crucial methods in rock mechanics and engineering research. Natural rock specimens are challenging to acquire, and traditional casting methods involve prolonged curing times and cannot pro
Externí odkaz:
https://doaj.org/article/650c0c1901d4413e9732ecacc0c4127a