Zobrazeno 1 - 10
of 34
pro vyhledávání: '"K.V. Jessu"'
Publikováno v:
International Journal of Mining Science and Technology, Vol 30, Iss 3, Pp 279-286 (2020)
Proper design of rock bolt support in underground mines is critical to avoid incidents, accidents and loss of production. The traditional design approach only considers the axial (tensile) capacity and this is clearly not the situation in situ, where
Externí odkaz:
https://doaj.org/article/4ca171d42b9a4a759857f42be886fa89
Publikováno v:
International Journal of Mining Science and Technology, Vol 30, Iss 2, Pp 167-177 (2020)
Rock bolts are subjected to different loading conditions along their lengths such as axial, bending, and/or shear forces, which can cause failure at lower loads than those considered for design purposes. The common existing methodologies do not consi
Externí odkaz:
https://doaj.org/article/fc5e4bdaad3c416a9b6b73fb35101cdd
Autor:
K.V. Jessu, A.J.S. Spearing
Publikováno v:
Journal of Rock Mechanics and Geotechnical Engineering, Vol 11, Iss 4, Pp 860-866 (2019)
Pillar stability is one of important aspects for underground mines. Generally, the stability of the pillars is evaluated empirically based on case studies and site-specific rock mass conditions in mines. Nevertheless the empirical approach applicabil
Externí odkaz:
https://doaj.org/article/e5c90bfc687d4bce931d1db7624dcfd9
Autor:
K.V. Jessu, A.J.S. Spearing
Publikováno v:
International Journal of Mining Science and Technology, Vol 29, Iss 3, Pp 437-443 (2019)
Discontinuities are an inherent part of the rock mass and majorly affect the stability of the excavation skin and pillars. The dip of the discontinuities and their properties also have a significant effect on the strength of the pillars. Empirical ap
Externí odkaz:
https://doaj.org/article/8f14fc0067c842f6b883edda088a869c
Publikováno v:
Journal of the Southern African Institute of Mining and Metallurgy, Volume: 122, Issue: 10, Pages: 587-596, Published: OCT 2022
Empirical pillar design methods are commonly used in the mining industry. The parameters within which these methods are valid are frequently unknown to the user or ignored. In addition, empirical design may not consider essential parameters such as b
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6c304d2918ff916b37dd05ce477bde10
https://doi.org/10.17159/2411-9717/1983/2022
https://doi.org/10.17159/2411-9717/1983/2022
Publikováno v:
Mining, Metallurgy & Exploration. 38:427-432
Rock bolts are highly important underground to prevent falls of ground and thus, ensure safety. In situ, the ground reinforcement is subjected to a combination of loads, such as shear, tensile, and/or bending loads. Studies have been conducted to eva
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e12e1a03356626c928f633df4dcfdcdf
https://doi.org/10.1007/s42461-020-00289-4
https://doi.org/10.1007/s42461-020-00289-4
Publikováno v:
Geotechnical and Geological Engineering. 38:5867-5883
Determining the rock bolt response under the typical in situ loading conditions of tension, shear and bending is an important part of the support design process. Calibrated numerical modelling can be an important tool for simulating the rock bolt res
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6c779cd4d7f47f94bfee5b0acc52a1ac
https://doi.org/10.1007/s10706-020-01398-z
https://doi.org/10.1007/s10706-020-01398-z
Publikováno v:
Geotechnical and Geological Engineering. 38:4349-4359
Developing an improved understanding of the interaction between the immediate roof and the rockbolts is fundamental in obtaining an effective roof support system. Effective instrumentation along the full length of fully grouted rock bolts would provi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f0332cef162a982cc5838f94ccc89b89
https://doi.org/10.1007/s10706-020-01246-0
https://doi.org/10.1007/s10706-020-01246-0
Publikováno v:
International Journal of Mining Science and Technology, Vol 30, Iss 2, Pp 167-177 (2020)
Rock bolts are subjected to different loading conditions along their lengths such as axial, bending, and/or shear forces, which can cause failure at lower loads than those considered for design purposes. The common existing methodologies do not consi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::14152ffe9e68a166d5d991f21921dfb2
https://doi.org/10.1016/j.ijmst.2020.01.004
https://doi.org/10.1016/j.ijmst.2020.01.004
Autor:
A.J.S. Spearing, K.V. Jessu
Publikováno v:
Journal of Rock Mechanics and Geotechnical Engineering, Vol 11, Iss 4, Pp 860-866 (2019)
Pillar stability is one of important aspects for underground mines. Generally, the stability of the pillars is evaluated empirically based on case studies and site-specific rock mass conditions in mines. Nevertheless the empirical approach applicabil
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1c762bdb26674a5cd196576a3911f019
http://www.sciencedirect.com/science/article/pii/S1674775518304086
http://www.sciencedirect.com/science/article/pii/S1674775518304086