Zobrazeno 1 - 10
of 44
pro vyhledávání: '"Martin Entacher"'
Autor:
Erik Schuller, Martin Entacher
Publikováno v:
Tunnelling and Underground Space Technology. 71:215-222
A series of rock cutting tests was conducted with three different metamorphic rock types. Samples were prepared with alpha angles of 0°, 45° and 90° to investigate the influence of foliation angle on the rolling forces ( F R , scaled ) of a mini d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4e55e81a12944be79482baf05ccbd8d1
https://doi.org/10.1016/j.tust.2017.08.009
https://doi.org/10.1016/j.tust.2017.08.009
Autor:
Bastian Fuchs, Martin Entacher
Publikováno v:
geotechnik. 39:205-211
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::caf7c8131cf00f80c127b4ea10ab7730
https://doi.org/10.1002/gete.201600011
https://doi.org/10.1002/gete.201600011
Publikováno v:
Rock Mechanics and Rock Engineering. 48:1559-1572
Analyses of rock failure mechanisms beneath disc cutters are presented. Full-scale cutting tests are conducted to assess the global energy input in comparison with rock chips and excavated volume. Small-scale cutting tests are subsequently used for m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::051166049ee9803469897f5f73a96512
https://doi.org/10.1007/s00603-014-0661-2
https://doi.org/10.1007/s00603-014-0661-2
Publikováno v:
International Journal of Rock Mechanics and Mining Sciences. 70:450-459
A scaled rock cutting test is presented. It is designed as an attachment for hydraulic presses commonly available in rock mechanics laboratories. Rotating disc cutters are used to cut rock samples several times with the possibility to adjust indentat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a94a4bc8b168e1df45a7e6eab9ee3775
https://doi.org/10.1016/j.ijrmms.2014.04.021
https://doi.org/10.1016/j.ijrmms.2014.04.021
Autor:
Jamal Rostami, Martin Entacher
Publikováno v:
Tunnelling and Underground Space Technology. 93:103085
A new TBM performance prediction model consisting of a basic penetration function and adjustment factors for different boundary conditions is presented. The basic penetration function is implemented as a linear function with an offset from zero based
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9a37196a161e66715b8620a267ec74ca
https://doi.org/10.1016/j.tust.2019.103085
https://doi.org/10.1016/j.tust.2019.103085
Autor:
Martin Entacher, Robert Galler
Publikováno v:
Geomechanics and Tunnelling. 6:725-731
The loading on the tools of a TBM can usually only be estimated through the global thrust force, which gives a typical force of about 250 kN for 17” discs. The actual loading is however highly variable, with peak loads that can be many times the no
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::07101864489e1793caee184278046dba
https://doi.org/10.1002/geot.201310013
https://doi.org/10.1002/geot.201310013
Publikováno v:
BHM Berg- und Hüttenmännische Monatshefte. 158:501-506
Die Entwicklung eines Modellschneidversuchs am Lehrstuhl fur Subsurface Engineering wird prasentiert. Der Versuch ist als Aufsatz fur herkommliche hydraulische Pressen konzipiert und verfugt uber die Moglichkeit zur Einstellung von Penetration und Sc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dccf411b15a7df439833787165bf679b
https://doi.org/10.1007/s00501-013-0212-2
https://doi.org/10.1007/s00501-013-0212-2
Publikováno v:
Tunnelling and Underground Space Technology. 38:487-496
Loading of a disk cutter on tunnel boring machines (TBM) is usually estimated from global machine thrust. In order to be able to measure cutting forces of an individual disk cutter, a new measurement method was developed and published in a previous p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::68392d0063585f0193b73e779c7fd1fb
https://doi.org/10.1016/j.tust.2013.08.010
https://doi.org/10.1016/j.tust.2013.08.010
Autor:
Martin Gimpel, Stefan Lorenz, Hubert Kargl, Erik Schuller, Heiko Mödlhammer, Richard Tichy, Gerhard Pittino, Thomas Antretter, Robert Galler, Werner Ecker, Thomas Marcher, Martin Entacher, Markus Johannes Mikl, Christian Volderauer, Gunter G. Gschwandtner
Publikováno v:
BHM Berg- und Hüttenmännische Monatshefte. 158:189-197
The introduction of numerical simulation in underground engineering proved to be a major advancement compared to traditional analytical calculations. However, building an appropriate model of rock or soil is very difficult because some geomaterials s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9ecb906841510c13496e027626628dae
https://doi.org/10.1007/s00501-013-0134-z
https://doi.org/10.1007/s00501-013-0134-z
Publikováno v:
International Journal of Rock Mechanics and Mining Sciences. 56:27-33
► 7 Alpine lithologies were tested on their Schmidt hammer hardness. ► Rebound values before and after loading with a TBM cutter were compared. ► A decrease in the rebound values after cutting is observed on all samples. ► The damage zone aft
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::54cf89d509592498210130cc1a0c8a94
https://doi.org/10.1016/j.ijrmms.2012.07.017
https://doi.org/10.1016/j.ijrmms.2012.07.017