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Solution of the ultimate bearing capacity at the tip of a pile in inclined rocks based on the Hoek-Brown criterion
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Cai, Yuanqiang, Xu, Bin, Cao, Zhigang, Geng, Xueyu and Yuan, Zonghao (2020) Solution of the ultimate bearing capacity at the tip of a pile in inclined rocks based on the Hoek-Brown criterion. International Journal of Rock Mechanics and Mining Sciences, 125 . 104140. doi:10.1016/j.ijrmms.2019.104140 ISSN 1365-1609.
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Official URL: http://dx.doi.org/10.1016/j.ijrmms.2019.104140
Abstract
To investigate the bearing mechanism of piles in inclined slope, this paper proposed an analytical method through geometric transformation to calculate the ultimate bearing capacity at the tip of a pile in inclined rocks based on the characteristic line method. It was found that there were five failure modes for piles in inclined rocks depending on the embedment ratios, slope angles, average overburden load and tensile strength parameter of the rock mass. When the pile failure mode was under the modes of deep pile with minor overburden (DL) and deep pile with major overburden (DH), the ultimate bearing capacity had no change as the slope angle and the pile embedment ratio changed. When the pile was under the failure modes of semi-deep pile with minor overburden (SL), semi-deep pile with major overburden (SH) or shallow pile (SS), the ultimate bearing capacity decreased with an increasing rate as the slope angles increased; and to get the same ultimate bearing capacity at the pile tip, the pile embedment ratio should increase. The proposed analytical method can be served as an efficient method to estimate the bearing capacity of piles in inclined slope with small slope angle (typically less than 40°).
Item Type: | Journal Article | ||||||||||||||||||
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Subjects: | T Technology > TA Engineering (General). Civil engineering (General) | ||||||||||||||||||
Divisions: | Faculty of Science, Engineering and Medicine > Engineering > Engineering | ||||||||||||||||||
Library of Congress Subject Headings (LCSH): | Rock mechanics, Rocks -- Classification, Slopes (Soil mechanics) -- Stability, Foundations, Strains and stresses | ||||||||||||||||||
Journal or Publication Title: | International Journal of Rock Mechanics and Mining Sciences | ||||||||||||||||||
Publisher: | Pergamon Press | ||||||||||||||||||
ISSN: | 1365-1609 | ||||||||||||||||||
Official Date: | January 2020 | ||||||||||||||||||
Dates: |
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Volume: | 125 | ||||||||||||||||||
Article Number: | 104140 | ||||||||||||||||||
DOI: | 10.1016/j.ijrmms.2019.104140 | ||||||||||||||||||
Status: | Peer Reviewed | ||||||||||||||||||
Publication Status: | Published | ||||||||||||||||||
Access rights to Published version: | Restricted or Subscription Access | ||||||||||||||||||
Date of first compliant deposit: | 4 March 2021 | ||||||||||||||||||
Date of first compliant Open Access: | 4 March 2021 | ||||||||||||||||||
RIOXX Funder/Project Grant: |
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