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Statistical joint modeling and removability analysis of rock blocks around a rail-road tunnel

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Authors
Yu, Yeung-Il; Song, Jae-Joon
Issue Date
2006
Publisher
ELSEVIER
Citation
Tunneling and Underground Space Technology 2006; 21: 240-241
Keywords
Statistical joint modelingDiameter distributionRemovability analysis
Abstract
Geometrical modeling of rock joints in 3D space determines the geometrical parameters of joints such
as orientation, frequency, size, shape and location. Joint size and volumetric frequency among the
parameters are very difficult to obtain because a complete joint plane within rock mass cannot be
observed directly. In this study, a recent technique developed by the author was used to estimate the
joint size and volumetric frequency. The developed technique uses the least square method to estimate
the joint diameter distribution, whose by-product is the volumetric frequency. This technique was
applied to a cut slope close to a rail-road tunnel under design and the removability of rock blocks
formed by circular joints simulated by statistical estimation was analysed. The volume, height,
perimetric length and occurrence probabilities of rock blocks around a tunnel were calculated. The
block analysis result was compared with that of a commercial program, UDEC (Universal Distinct
Element Code).
ISSN
0886-7798
Language
English
URI
http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6V58-4J9N0S6-K&_user=198559&_coverDate=07%2F31%2F2006&_rdoc=1&_fmt=high&_orig=search&_sort=d&_docanchor=&view=c&_acct=C000013398&_version=1&_urlVersion=0&_userid=198559&md5=2242a8b43e23047919f6392d1aa979e6

http://hdl.handle.net/10371/67689
DOI
https://doi.org/10.1016/j.tust.2005.12.019
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College of Engineering/Engineering Practice School (공과대학/대학원)Dept. of Energy Systems Engineering (에너지시스템공학부)Journal Papers (저널논문_에너지시스템공학부)
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