Zobrazeno 1 - 10
of 21
pro vyhledávání: '"Milan Labaš"'
Publikováno v:
Acta Montanistica Slovaca, Vol 17, Iss 1, Pp 65-73 (2012)
Rock abrasiveness is ability of rock to wear down the working tool during the mutual interaction between the working indentorand the rock in the mechanical rock cutting process. The cutting indentor is worn down during the interaction, which changes
Externí odkaz:
https://doaj.org/article/80dafa981d00423089a45da02857c11d
Publikováno v:
Acta Montanistica Slovaca, Vol 17, Iss 3, Pp 179-183 (2012)
Most of complex technical systems, including the rock cutting process, are very difficult to describe mathematically due to limitedhuman recognition abilities depending on achieved state in natural sciences and technology. A confrontation between the
Externí odkaz:
https://doaj.org/article/89f60e24e812418a94837e9e736116b6
Publikováno v:
Acta Montanistica Slovaca, Vol 16, Iss 3, Pp 216-219 (2011)
The paper is focused on the analysis of principal stress fields induced in the system of drilling tool-rock during the drilling process in immediate surroundings of their mutual contact. Various load conditions were analyzed, representing torque, loa
Externí odkaz:
https://doaj.org/article/7f5f06fe22904b1cb089bdd336678def
Publikováno v:
Acta Montanistica Slovaca, Vol 13, Iss 1, Pp 25-32 (2008)
The contribution describes a concept of the evaluation of rock disintegration process using the energetic theory and an optimization of rock disintegration process depending on input parameters, i.e. the thrust force and the torque. The interaction o
Externí odkaz:
https://doaj.org/article/e52bb4f603b144a4bf2163aa1c1cb640
Autor:
Zuzana Chlebová, Ľudmila Tréfová, Viera Miklúšová, Milan Labaš, Lucia Ivaničová, František Krepelka
Publikováno v:
Acta Montanistica Slovaca, Vol 11, Iss special issue 2, Pp 309-313 (2006)
The paper describes a measuring device providing a monitoring of forced vibrations arising at the rock cutting by impregnated diamond drilling tools at quasi-constant revolutions and thrust levels. The forced vibrations were measured by a capacity ac
Externí odkaz:
https://doaj.org/article/f8c87e259ab64e52badde8f536bbf8f4
Publikováno v:
Acta Montanistica Slovaca, Vol 11, Iss special issue 2, Pp 321-325 (2006)
The research of thermo-technical parameters of Ruskov andesite was made as a part of the complex research of its properties as well as of rock disintegration by the action of chemical flame on the rock surface, i.e. thermal spalling in particular. Th
Externí odkaz:
https://doaj.org/article/a644478f25cb46baa97896e76276cdc8
Autor:
Milan Labaš
Publikováno v:
Acta Montanistica Slovaca, Vol 9, Iss 4, Pp 356-359 (2004)
The stresses generated as aresult of different thermal characteristics of particular rock components as well as the stresses generated as a result of various changes in the chemical or crystallographical rock composition at rised rock temperature are
Externí odkaz:
https://doaj.org/article/c31be0d4edb94a65bb5105944e0d41e7
Autor:
Miklúová Viera, Milan Labaš, Lucia Ivaničová, Zuzana Chlebová, Rudolf Zahradníček, František Krepelka, Ľudmila Ušalová
Publikováno v:
Acta Montanistica Slovaca, Vol 9, Iss 4, Pp 367-369 (2004)
The paper presents a method for vibration measurements at rotary drilling of andesite, granite and limestone. The measurements were carried out on the drilling stand using diamond-impregnated bits of 46 mm diameter. The vibration signal was monitored
Externí odkaz:
https://doaj.org/article/aecf487fe5d249d490f83ff5e7f96268
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