A new method of block shape classification
The shapes of block within the rock mass have an important effect on the rock properties, so it's very important to evaluate the shapes of rock fragmentation and to determine the geometric characteristics distribution of the block. The previous methods to classify rock block shape are based on the a...
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Published in | Science China Technological Sciences Vol. 54; no. 1; pp. 110 - 115 |
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Main Authors | , , , , , |
Format | Journal Article |
Language | English |
Published |
Heidelberg
SP Science China Press
2011
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Subjects | |
Online Access | Get full text |
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Summary: | The shapes of block within the rock mass have an important effect on the rock properties, so it's very important to evaluate the shapes of rock fragmentation and to determine the geometric characteristics distribution of the block. The previous methods to classify rock block shape are based on the assumption that a block shape is approximately orthogonal, which is acceptable in only a few rock masses. This paper proposes a new method for block shape classification using triangular diagram together with parameters of co-linearity e and volume coefficient K, which combines the shape categorization with block volume for statistical analysis. Rock block equivalent size calculation methods based on block shape is proposed and the block cumulative percentage of total volume statistical analysis is given. In order to verify this block shape classification method, three ideal rock masses with approximately orthogonal joint sets have been generated and simulated. |
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Bibliography: | block shape, co-linearity, volume coefficient TP391.41 11-5845/TH TD231.1 |
ISSN: | 1674-7321 1869-1900 1862-281X |
DOI: | 10.1007/s11431-010-4221-z |