Size effect of parallel-joint spacing on uniaxial compressive strength of rock

Gaojian Hu and Gang Ma

PLOS ONE, 2021, vol. 16, issue 9, 1-16

Abstract: The existence of parallel joints has an impact on the size effect of the uniaxial compressive strength of rock, but the relationship is yet to be obtained. In this paper, the influence of parallel-joint spacing on the size effect and characteristic size of rock uniaxial compressive strength is studied by establishing five types of parallel-joint-spacing simulation schemes. The influence of parallel-joint spacing on the size effect of rock uniaxial compressive strength is explored by analyzing the stress–strain curves of rocks with different parallel-joint spacings and rock sizes. The relationship between the uniaxial compressive strength and the size of the rock with parallel joints and its special mathematical model are obtained, and the particular form of the compressive-strength characteristic size and parallel-joint spacing is obtained.

Date: 2021
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Persistent link: https://EconPapers.repec.org/RePEc:plo:pone00:0257245

DOI: 10.1371/journal.pone.0257245

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