DEFINITION OF THE FAILURE SHAPE IN TUNNELS BY MEANS OF THE GEOLOGICALLY DEFINED PLANES OF DISCONTINUITIES
The data from the engineering geological measurements have to be adequate prepared for later use in the computer programs for examination of the underground rooms stability. The only mean values of the dip direction and dip angles are not relevant for later calculations, but rather the statistically...
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Faculty of Mining, Geology and Petroleum Engineering
1994-12-01
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doaj-f3044071d376418ca155066d29b8f1d72020-11-25T00:55:55ZengFaculty of Mining, Geology and Petroleum EngineeringRudarsko-geološko-naftni Zbornik0353-45291849-04091994-12-01616170DEFINITION OF THE FAILURE SHAPE IN TUNNELS BY MEANS OF THE GEOLOGICALLY DEFINED PLANES OF DISCONTINUITIESMladen Hudec 0Lidija Frgić 1Faculty of Mining, Geology and Petroleum Engineering, University of Zagreb, Pierottijeva 6, HR-10000 Zagreb, CroatiaFaculty of Mining, Geology and Petroleum Engineering, University of Zagreb, Pierottijeva 6, HR-10000 Zagreb, CroatiaThe data from the engineering geological measurements have to be adequate prepared for later use in the computer programs for examination of the underground rooms stability. The only mean values of the dip direction and dip angles are not relevant for later calculations, but rather the statistically defined area containing chosen percentage of the collected data. The main conclusions of the block theory are accepted for visual presentation of the relation between the rooms cross--sections and the planes of discontinuities so that the position and shape of critical (key) blocks can be easy recognized. The roof falls and side sidings volumes have to be tilled in the site with the expensive concrete, so the avoiding of falls is a challenge to the theory and tunnelling practice. The program based on the boundary elements is adapted so that it can calculate the failure criteria on the planes of weakness and compare this with the failure criteria through in the rock itself. The area with critical security factor will be displayed and so the numerically possible rock and block failure recognized (the paper is published in Croatian).http://hrcak.srce.hr/index.php?show=clanak&id_clanak_jezik=21033&lang=enblock theoryboundary elements methodstatistics in geologyunderground roomstunnels |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Mladen Hudec Lidija Frgić |
spellingShingle |
Mladen Hudec Lidija Frgić DEFINITION OF THE FAILURE SHAPE IN TUNNELS BY MEANS OF THE GEOLOGICALLY DEFINED PLANES OF DISCONTINUITIES Rudarsko-geološko-naftni Zbornik block theory boundary elements method statistics in geology underground rooms tunnels |
author_facet |
Mladen Hudec Lidija Frgić |
author_sort |
Mladen Hudec |
title |
DEFINITION OF THE FAILURE SHAPE IN TUNNELS BY MEANS OF THE GEOLOGICALLY DEFINED PLANES OF DISCONTINUITIES |
title_short |
DEFINITION OF THE FAILURE SHAPE IN TUNNELS BY MEANS OF THE GEOLOGICALLY DEFINED PLANES OF DISCONTINUITIES |
title_full |
DEFINITION OF THE FAILURE SHAPE IN TUNNELS BY MEANS OF THE GEOLOGICALLY DEFINED PLANES OF DISCONTINUITIES |
title_fullStr |
DEFINITION OF THE FAILURE SHAPE IN TUNNELS BY MEANS OF THE GEOLOGICALLY DEFINED PLANES OF DISCONTINUITIES |
title_full_unstemmed |
DEFINITION OF THE FAILURE SHAPE IN TUNNELS BY MEANS OF THE GEOLOGICALLY DEFINED PLANES OF DISCONTINUITIES |
title_sort |
definition of the failure shape in tunnels by means of the geologically defined planes of discontinuities |
publisher |
Faculty of Mining, Geology and Petroleum Engineering |
series |
Rudarsko-geološko-naftni Zbornik |
issn |
0353-4529 1849-0409 |
publishDate |
1994-12-01 |
description |
The data from the engineering geological measurements have to be adequate prepared for later use in the computer programs for examination of the underground rooms stability. The only mean values of the dip direction and dip angles are not relevant for later calculations, but rather the statistically defined area containing chosen percentage of the collected data. The main conclusions of the block theory are accepted for visual presentation of the relation between the rooms cross--sections and the planes of discontinuities so that the position and shape of critical (key) blocks can be easy recognized. The roof falls and side sidings volumes have to be tilled in the site with the expensive concrete, so the avoiding of falls is a challenge to the theory and tunnelling practice. The program based on the boundary elements is adapted so that it can calculate the failure criteria on the planes of weakness and compare this with the failure criteria through in the rock itself. The area with critical security factor will be displayed and so the numerically possible rock and block failure recognized (the paper is published in Croatian). |
topic |
block theory boundary elements method statistics in geology underground rooms tunnels |
url |
http://hrcak.srce.hr/index.php?show=clanak&id_clanak_jezik=21033&lang=en |
work_keys_str_mv |
AT mladenhudec definitionofthefailureshapeintunnelsbymeansofthegeologicallydefinedplanesofdiscontinuities AT lidijafrgic definitionofthefailureshapeintunnelsbymeansofthegeologicallydefinedplanesofdiscontinuities |
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