Zobrazeno 1 - 10
of 19
pro vyhledávání: '"Edita Lazarová"'
Publikováno v:
Acta Montanistica Slovaca, Vol 20, Iss 4, Pp 282-289 (2015)
The process of separation of a rock massif by rotary drilling belongs to the most frequently used geotechnologies. Since their energy costs are significant, it makes sense to pay sufficient consideration to the subject of an efficient mode of drillin
Externí odkaz:
https://doaj.org/article/9c4397a097b441c89aea58b2e73421d0
Publikováno v:
Acta Montanistica Slovaca, Vol 16, Iss 3, Pp 197-208 (2011)
Full-face tunnelling machines were used for the tunnel construction in Slovakia for boring of the exploratory galleries of highwaytunnels Branisko and Višňové-Dubná skala. A monitoring system of boring process parameters was installed on the tunn
Externí odkaz:
https://doaj.org/article/651a8a855255441c9a41cba28602e888
Autor:
Víťazoslav Krúpa, Edita Lazarová
Publikováno v:
Acta Montanistica Slovaca, Vol 13, Iss 1, Pp 33-38 (2008)
The monitoring of input and uotput parameters of excavation process using the full-face tunnelling machine provides the determination of properties of excavated rock mass. A mathematical apparatus was designed to solve the task by the description of
Externí odkaz:
https://doaj.org/article/37ba26a99a4e45708a98934e6abf0c73
Autor:
Edita Lazarová, Víťazoslav Krúpa
Publikováno v:
Acta Montanistica Slovaca, Vol 11, Iss special issue 2, Pp 330-334 (2006)
The economic development of Slovakia places an emphasis on increasing the quality of transport infrastructure, which requires its modernization residing in building the transport network of international level and improving its efficiency and travel
Externí odkaz:
https://doaj.org/article/21cde154201943bcb2afc7300d284d94
Autor:
Edita Lazarová
Publikováno v:
Acta Montanistica Slovaca, Vol 11, Iss special issue 2, Pp 326-329 (2006)
The tunnelling machine acts as a very complex system in the interaction with rock masses. The identification of significant properties provides a prediction of the excavation performance in complicated geological conditions, which forms the aim of pr
Externí odkaz:
https://doaj.org/article/8968ad93fba94bdd8f6054e4fdc0d847
Publikováno v:
Acta Montanistica Slovaca, Vol 9, Iss 4, Pp 375-378 (2004)
In the field of geotechnics, certain vagueness and ambiquity appears. We might not be able to design a mathematically accuratedescription of rock, whose properties change during the excavation (rock strength, discontinuities direction, dislocations,
Externí odkaz:
https://doaj.org/article/202095c3cf3a4564b5e2e205f70b6ffc
Autor:
Edita Lazarová, Víťazoslav Krúpa
Publikováno v:
Acta Montanistica Slovaca, Vol 9, Iss 4, Pp 370-374 (2004)
The computer monitoring system used at excavation of exploratory galleries of motorway tunnels Branisko and Viòové-Dubná skala (excavated by Wirth TB-II-330H/M and Voest Alpine ATB 35H, respectively) brought an ample study material. Several charac
Externí odkaz:
https://doaj.org/article/df49cd8997794e1d8e5b9bfd55c1fc44
Publikováno v:
International Journal of Rock Mechanics and Mining Sciences. 149:104984
On the basis of analyses of the vibration signal monitored during the drilling into tested rocks on the laboratory drill stand using a diamond impregnated drill bit, it is possible to state that in constant drilling conditions a disintegration regime
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9823d8103903bbbf7a3297ab1f643608
https://doi.org/10.1016/j.ijrmms.2021.104984
https://doi.org/10.1016/j.ijrmms.2021.104984
Autor:
Edita Lazarová, Katarina Feriancikova, Víťazoslav Krúpa, Milan Labaš, Lucia Ivanicova, Mária Kruľáková
Publikováno v:
Measurement. 117:165-175
Continuous process of deterioration (wear) of drill bit during rotary rock drilling leads to its blunting and losing of cutting capacity down to the point when it needs to be removed and replaced. Direct measurements of drill bit wear do not enable t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8ec064ab5ebbbcf3aad028a2186e643a
https://doi.org/10.1016/j.measurement.2017.12.007
https://doi.org/10.1016/j.measurement.2017.12.007
Publikováno v:
Engineering Failure Analysis. 108:104302
The use of vibration signal as a diagnostic parameter of the drilling process appears to be a potentially successful approach. The purpose of the research was to identify correlation between applied regime and vibrations, between specific energy and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::859a21cf4b4bce6a7f5b8a6a24e89d02
https://doi.org/10.1016/j.engfailanal.2019.104302
https://doi.org/10.1016/j.engfailanal.2019.104302