The relationship between generalized preconsolidation pressure and brittle-ductile transition pressure in sedimentary soft rock
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Latin American journal of solids and structures (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1679-78252021000400508 |
Resumo: | Abstract In this study, we investigated the preconsolidation pressure (P C) of sedimentary soft rock and its relationship with brittle-ductile transition (BDT) pressure. We proposed a generalized preconsolidation pressure (P G) suitable for both soil and sedimentary soft rock, which is defined in terms of the yield stress of the initial sediment structure under confined lateral compression. We then explored the digenetic effect on P G using 24 sediment types. Next, P G and BDT pressure were verified using confined compression and conventional triaxial tests, respectively, on red-bed soft rock in the Dingxi region of China. Finally, we discussed the BDT mechanism and analyzed the relationship between the two characteristic pressures for a given initial yield surface considered structural strength. We found that the relationship was dependent on the strength parameters, the initial structural strength, and the coefficient of earth pressure at rest. The findings of this study will have a significant impact on the determination of BDT pressure of sedimentary rock in future studies. |
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Latin American journal of solids and structures (Online) |
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The relationship between generalized preconsolidation pressure and brittle-ductile transition pressure in sedimentary soft rockBrittle-ductile transition pressuregeneralized preconsolidation pressuresedimentary soft rockinitial yield surfacecoefficient of earth pressure at restAbstract In this study, we investigated the preconsolidation pressure (P C) of sedimentary soft rock and its relationship with brittle-ductile transition (BDT) pressure. We proposed a generalized preconsolidation pressure (P G) suitable for both soil and sedimentary soft rock, which is defined in terms of the yield stress of the initial sediment structure under confined lateral compression. We then explored the digenetic effect on P G using 24 sediment types. Next, P G and BDT pressure were verified using confined compression and conventional triaxial tests, respectively, on red-bed soft rock in the Dingxi region of China. Finally, we discussed the BDT mechanism and analyzed the relationship between the two characteristic pressures for a given initial yield surface considered structural strength. We found that the relationship was dependent on the strength parameters, the initial structural strength, and the coefficient of earth pressure at rest. The findings of this study will have a significant impact on the determination of BDT pressure of sedimentary rock in future studies.Associação Brasileira de Ciências Mecânicas2021-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1679-78252021000400508Latin American Journal of Solids and Structures v.18 n.4 2021reponame:Latin American journal of solids and structures (Online)instname:Associação Brasileira de Engenharia e Ciências Mecânicas (ABCM)instacron:ABCM10.1590/1679-78256347info:eu-repo/semantics/openAccessLV,Long-longLIAO,Hong-jianSONG,LiLI,Hang-zhouFU,Ying-pengeng2021-05-26T00:00:00Zoai:scielo:S1679-78252021000400508Revistahttp://www.scielo.br/scielo.php?script=sci_serial&pid=1679-7825&lng=pt&nrm=isohttps://old.scielo.br/oai/scielo-oai.phpabcm@abcm.org.br||maralves@usp.br1679-78251679-7817opendoar:2021-05-26T00:00Latin American journal of solids and structures (Online) - Associação Brasileira de Engenharia e Ciências Mecânicas (ABCM)false |
dc.title.none.fl_str_mv |
The relationship between generalized preconsolidation pressure and brittle-ductile transition pressure in sedimentary soft rock |
title |
The relationship between generalized preconsolidation pressure and brittle-ductile transition pressure in sedimentary soft rock |
spellingShingle |
The relationship between generalized preconsolidation pressure and brittle-ductile transition pressure in sedimentary soft rock LV,Long-long Brittle-ductile transition pressure generalized preconsolidation pressure sedimentary soft rock initial yield surface coefficient of earth pressure at rest |
title_short |
The relationship between generalized preconsolidation pressure and brittle-ductile transition pressure in sedimentary soft rock |
title_full |
The relationship between generalized preconsolidation pressure and brittle-ductile transition pressure in sedimentary soft rock |
title_fullStr |
The relationship between generalized preconsolidation pressure and brittle-ductile transition pressure in sedimentary soft rock |
title_full_unstemmed |
The relationship between generalized preconsolidation pressure and brittle-ductile transition pressure in sedimentary soft rock |
title_sort |
The relationship between generalized preconsolidation pressure and brittle-ductile transition pressure in sedimentary soft rock |
author |
LV,Long-long |
author_facet |
LV,Long-long LIAO,Hong-jian SONG,Li LI,Hang-zhou FU,Ying-peng |
author_role |
author |
author2 |
LIAO,Hong-jian SONG,Li LI,Hang-zhou FU,Ying-peng |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
LV,Long-long LIAO,Hong-jian SONG,Li LI,Hang-zhou FU,Ying-peng |
dc.subject.por.fl_str_mv |
Brittle-ductile transition pressure generalized preconsolidation pressure sedimentary soft rock initial yield surface coefficient of earth pressure at rest |
topic |
Brittle-ductile transition pressure generalized preconsolidation pressure sedimentary soft rock initial yield surface coefficient of earth pressure at rest |
description |
Abstract In this study, we investigated the preconsolidation pressure (P C) of sedimentary soft rock and its relationship with brittle-ductile transition (BDT) pressure. We proposed a generalized preconsolidation pressure (P G) suitable for both soil and sedimentary soft rock, which is defined in terms of the yield stress of the initial sediment structure under confined lateral compression. We then explored the digenetic effect on P G using 24 sediment types. Next, P G and BDT pressure were verified using confined compression and conventional triaxial tests, respectively, on red-bed soft rock in the Dingxi region of China. Finally, we discussed the BDT mechanism and analyzed the relationship between the two characteristic pressures for a given initial yield surface considered structural strength. We found that the relationship was dependent on the strength parameters, the initial structural strength, and the coefficient of earth pressure at rest. The findings of this study will have a significant impact on the determination of BDT pressure of sedimentary rock in future studies. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-01-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1679-78252021000400508 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1679-78252021000400508 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/1679-78256347 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Associação Brasileira de Ciências Mecânicas |
publisher.none.fl_str_mv |
Associação Brasileira de Ciências Mecânicas |
dc.source.none.fl_str_mv |
Latin American Journal of Solids and Structures v.18 n.4 2021 reponame:Latin American journal of solids and structures (Online) instname:Associação Brasileira de Engenharia e Ciências Mecânicas (ABCM) instacron:ABCM |
instname_str |
Associação Brasileira de Engenharia e Ciências Mecânicas (ABCM) |
instacron_str |
ABCM |
institution |
ABCM |
reponame_str |
Latin American journal of solids and structures (Online) |
collection |
Latin American journal of solids and structures (Online) |
repository.name.fl_str_mv |
Latin American journal of solids and structures (Online) - Associação Brasileira de Engenharia e Ciências Mecânicas (ABCM) |
repository.mail.fl_str_mv |
abcm@abcm.org.br||maralves@usp.br |
_version_ |
1754302890784063488 |