Compression strength and damage model of frozen silty clay in Xing’an Baikal permafrost under temperature effects
Abstract The Daxing’anling, situated within the high-latitude transition zone between continuous and sporadic permafrost, mark the southern boundary of the Northern Hemisphere’s permafrost distribution. The thermally sensitive Xing’an Baikal permafrost in this region was investigated through uniaxia...
Saved in:
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Nature Portfolio
2025-07-01
|
| Series: | Scientific Reports |
| Subjects: | |
| Online Access: | https://doi.org/10.1038/s41598-025-06222-3 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1849768987178565632 |
|---|---|
| author | Kezheng Chen Shuai Huang Xiujuan Li Haiping Liu Yang Yang Yanjie Liu Lin Ding |
| author_facet | Kezheng Chen Shuai Huang Xiujuan Li Haiping Liu Yang Yang Yanjie Liu Lin Ding |
| author_sort | Kezheng Chen |
| collection | DOAJ |
| description | Abstract The Daxing’anling, situated within the high-latitude transition zone between continuous and sporadic permafrost, mark the southern boundary of the Northern Hemisphere’s permafrost distribution. The thermally sensitive Xing’an Baikal permafrost in this region was investigated through uniaxial compression tests on remolded silty clay under controlled freezing temperatures (− 7.5 to − 0.5 °C). Results revealed a triphasic strength-temperature relationship: strength increased at 79.99 kPa/°C between − 0.5 and − 2.0 °C, surged to 1842.00 kPa/°C from − 2.0 to − 3.0 °C, then declined to 316.20 kPa/°C below − 3.0 °C. A brittle-ductile transition occurred at − 3.0 °C, shifting failure modes from plastic to brittle deformation. Building on Lemaitre’s strain equivalence principle and Weibull statistics, we developed a dual-variable damage model integrating thermal and mechanical damage, enabling quantitative cryogenic damage assessment, coupled damage evolution equations, and full temperature-regime stress–strain predictions. This work advances theoretical tools for engineering stability evaluation in the Xing’an Baikal permafrost environments. |
| format | Article |
| id | doaj-art-d4fcf3bc6a164f86b0ef1875ee7e25e7 |
| institution | DOAJ |
| issn | 2045-2322 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj-art-d4fcf3bc6a164f86b0ef1875ee7e25e72025-08-20T03:03:37ZengNature PortfolioScientific Reports2045-23222025-07-0115111810.1038/s41598-025-06222-3Compression strength and damage model of frozen silty clay in Xing’an Baikal permafrost under temperature effectsKezheng Chen0Shuai Huang1Xiujuan Li2Haiping Liu3Yang Yang4Yanjie Liu5Lin Ding6College of Mechanical and Electrical Engineering, Northeast Forestry UniversityKey Laboratory of Sustainable Forest Ecosystem Management (Ministry of Education), School of Ecology, Northeast Forestry UniversitySchool of Civil Engineering, Heilongjiang UniversityCollege of Civil and Architectural Engineering, Heilongjiang Institute of TechnologyCollege of Civil and Architectural Engineering, Heilongjiang Institute of TechnologySchool of Civil Engineering, Heilongjiang UniversityCollege of Mechanical and Electrical Engineering, Northeast Forestry UniversityAbstract The Daxing’anling, situated within the high-latitude transition zone between continuous and sporadic permafrost, mark the southern boundary of the Northern Hemisphere’s permafrost distribution. The thermally sensitive Xing’an Baikal permafrost in this region was investigated through uniaxial compression tests on remolded silty clay under controlled freezing temperatures (− 7.5 to − 0.5 °C). Results revealed a triphasic strength-temperature relationship: strength increased at 79.99 kPa/°C between − 0.5 and − 2.0 °C, surged to 1842.00 kPa/°C from − 2.0 to − 3.0 °C, then declined to 316.20 kPa/°C below − 3.0 °C. A brittle-ductile transition occurred at − 3.0 °C, shifting failure modes from plastic to brittle deformation. Building on Lemaitre’s strain equivalence principle and Weibull statistics, we developed a dual-variable damage model integrating thermal and mechanical damage, enabling quantitative cryogenic damage assessment, coupled damage evolution equations, and full temperature-regime stress–strain predictions. This work advances theoretical tools for engineering stability evaluation in the Xing’an Baikal permafrost environments.https://doi.org/10.1038/s41598-025-06222-3Xing’an Baikal permafrostSilty clayCompression strengthDamage model |
| spellingShingle | Kezheng Chen Shuai Huang Xiujuan Li Haiping Liu Yang Yang Yanjie Liu Lin Ding Compression strength and damage model of frozen silty clay in Xing’an Baikal permafrost under temperature effects Scientific Reports Xing’an Baikal permafrost Silty clay Compression strength Damage model |
| title | Compression strength and damage model of frozen silty clay in Xing’an Baikal permafrost under temperature effects |
| title_full | Compression strength and damage model of frozen silty clay in Xing’an Baikal permafrost under temperature effects |
| title_fullStr | Compression strength and damage model of frozen silty clay in Xing’an Baikal permafrost under temperature effects |
| title_full_unstemmed | Compression strength and damage model of frozen silty clay in Xing’an Baikal permafrost under temperature effects |
| title_short | Compression strength and damage model of frozen silty clay in Xing’an Baikal permafrost under temperature effects |
| title_sort | compression strength and damage model of frozen silty clay in xing an baikal permafrost under temperature effects |
| topic | Xing’an Baikal permafrost Silty clay Compression strength Damage model |
| url | https://doi.org/10.1038/s41598-025-06222-3 |
| work_keys_str_mv | AT kezhengchen compressionstrengthanddamagemodeloffrozensiltyclayinxinganbaikalpermafrostundertemperatureeffects AT shuaihuang compressionstrengthanddamagemodeloffrozensiltyclayinxinganbaikalpermafrostundertemperatureeffects AT xiujuanli compressionstrengthanddamagemodeloffrozensiltyclayinxinganbaikalpermafrostundertemperatureeffects AT haipingliu compressionstrengthanddamagemodeloffrozensiltyclayinxinganbaikalpermafrostundertemperatureeffects AT yangyang compressionstrengthanddamagemodeloffrozensiltyclayinxinganbaikalpermafrostundertemperatureeffects AT yanjieliu compressionstrengthanddamagemodeloffrozensiltyclayinxinganbaikalpermafrostundertemperatureeffects AT linding compressionstrengthanddamagemodeloffrozensiltyclayinxinganbaikalpermafrostundertemperatureeffects |