Zobrazeno 1 - 10
of 166
pro vyhledávání: '"Manoj Khandelwal"'
Publikováno v:
Journal of Rock Mechanics and Geotechnical Engineering, Vol 16, Iss 8, Pp 2879-2893 (2024)
Spontaneous combustion of coal increases the temperature in adjoining overburden strata of coal seams and poses a challenge when loading blastholes. This condition, known as hot-hole blasting, is dangerous due to the increased possibility of prematur
Externí odkaz:
https://doaj.org/article/d6a823bee640454895bd5de3f9d864c1
Publikováno v:
Geomechanics and Geophysics for Geo-Energy and Geo-Resources, Vol 10, Iss 1, Pp 1-35 (2024)
Abstract Rockburst, coal bump, and mine earthquake are the most important dynamic disaster phenomena in deep mining. This paper summarizes the differences and connections between rockburst, coal bumps and mine earthquakes in terms of definition, mech
Externí odkaz:
https://doaj.org/article/657158457bf24aa48b08b8bf93a4253a
Publikováno v:
Journal of Rock Mechanics and Geotechnical Engineering, Vol 15, Iss 10, Pp 2508-2520 (2023)
Rock strength is a crucial factor to consider when designing and constructing underground projects. This study utilizes a gene expression programming (GEP) algorithm-based model to predict the true triaxial strength of rocks, taking into account the
Externí odkaz:
https://doaj.org/article/b00c3f24c08b450d80492be14939fce3
Publikováno v:
Geosciences, Vol 14, Iss 7, p 176 (2024)
In this research, the cohesive length of various rock types is measured using quantitative fractography alongside a recently developed multifractal analysis. This length is then utilized to gauge material cohesive stress through the theory of critica
Externí odkaz:
https://doaj.org/article/d7908a9356944add95f1c91c216a7fb1
Publikováno v:
AIMS Geosciences, Vol 9, Iss 2, Pp 357-381 (2023)
Mine blasting can have a destructive effect on the environment. Among these effects, air overpressure (AOp) is a major concern. Therefore, a careful assessment of the AOp intensity should be conducted before any blasting operation in order to minimiz
Externí odkaz:
https://doaj.org/article/c7cf7f142d1848eda7b71e2e5ee7618c
Publikováno v:
Underground Space, Vol 9, Iss , Pp 234-249 (2023)
The stability of underground entry-type excavations will directly affect the working environment and the safety of staff. Empirical critical span graphs and traditional statistics learning methods can not meet the requirements of high accuracy for st
Externí odkaz:
https://doaj.org/article/dd73d7fb14f0463bb7a7fab4b9d045da
Publikováno v:
AIMS Geosciences, Vol 9, Iss 1, Pp 16-33 (2023)
The blasting operation is an integral part of mines, and it is still being used as the most economical tool to fragment and displace rock mass. Appropriate blast optimization alleviates undesirable side effects, such as ground vibration, air blasts a
Externí odkaz:
https://doaj.org/article/894eb46fdbaf45b6be68abf6b9f6a2b7
Publikováno v:
Results in Engineering, Vol 17, Iss , Pp 100892- (2023)
Conical picks are widely used as cutting tools in shearers and roadheaders, and the mean cutting force (MCF) is one of the important parameters affecting conical pick performance. As MCF depends on a number of parameters and due to that the existing
Externí odkaz:
https://doaj.org/article/b24a3a11c33c4c63afa516dd81f36632
Publikováno v:
Geosciences, Vol 13, Iss 10, p 294 (2023)
The uniaxial compressive strength (UCS) of rocks is one of the key parameters for evaluating the safety and stability of civil and mining structures. In this study, 386 rock samples containing four properties named the load strength (PLS), the porosi
Externí odkaz:
https://doaj.org/article/add06ca30bac4bafb876c73b84e2439e
Publikováno v:
Frontiers in Public Health, Vol 11 (2023)
Pillar stability is an important condition for safe work in room-and-pillar mines. The instability of pillars will lead to large-scale collapse hazards, and the accurate estimation of induced stresses at different positions in the pillar is helpful f
Externí odkaz:
https://doaj.org/article/e81a0574f833453ca6717013071bfd5c