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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Main Authors: Mladen Hudec, Lidija Frgić
Format: Article
Language:English
Published: Faculty of Mining, Geology and Petroleum Engineering 1994-12-01
Series:Rudarsko-geološko-naftni Zbornik
Subjects:
Online Access:http://hrcak.srce.hr/index.php?show=clanak&id_clanak_jezik=21033&lang=en
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spelling 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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